LON - PDX

£258 Find Cheap Flights from London to Portland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Portland departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Portland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Portland.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Portland.
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£426
Overall average: £628
Multiple Airlines
Mon 9/3Mon 16/3
LHR - PDX • 2 stops
Cheapest direct flights
£550
Typical prices: £537-£730
Multiple Airlines
Mon 16/3Mon 30/3
LHR - PDX • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Finnair's A350 offers a more comfortable journey.
BA's premium economy includes priority boarding.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to Portland
Watch video
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Top airlines
Icelandair
Cheapest • from £483 (return)
Finnair
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
LHR
-
PDX
Cheapest
LHR
-
PDX
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 41% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 17% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Portland!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from London to Portland (LON-PDX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Portland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Portland

Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
06:40 - 18:00
LHR
-
PDX
18h 20m
2 stops
Multiple Airlines Logo
15:45 - 21:20
PDX
-
LHR
22h 35m
2 stops
£426Multiple Airlines
Tue, 14 Apr - Sat, 18 Apr
Icelandair Logo
21:25 - 18:00
LHR
-
PDX
28h 35m
1 stop
Icelandair Logo
15:30 - 20:20
PDX
-
LHR
20h 50m
1 stop
£483Icelandair
Mon, 9 Mar - Mon, 16 Mar
Icelandair Logo
11:55 - 18:00
LGW
-
PDX
13h 05m
1 stop
Icelandair Logo
15:45 - 10:55
PDX
-
LGW
12h 10m
1 stop
£483Icelandair
Mon, 16 Mar - Mon, 30 Mar
Air Canada Logo
14:30 - 14:40
LHR
-
PDX
31h 10m
1 stop
Air Canada Logo
19:05 - 13:20
PDX
-
LHR
34h 15m
1 stop
£498Air Canada
Mon, 16 Mar - Mon, 30 Mar
Air Canada Logo
14:30 - 14:40
LHR
-
PDX
31h 10m
1 stop
Air Canada Logo
09:50 - 10:00
PDX
-
LHR
16h 10m
2 stops
£500Air Canada
Wed, 11 Feb - Wed, 18 Feb
Lufthansa Logo
06:35 - 18:10
LHR
-
PDX
19h 35m
2 stops
Lufthansa Logo
09:50 - 11:50
PDX
-
LHR
18h 00m
1 stop
£501Lufthansa
Thu, 26 Feb - Sun, 1 Mar
Lufthansa Logo
06:30 - 22:40
LHR
-
PDX
24h 10m
2 stops
Lufthansa Logo
09:50 - 11:50
PDX
-
LHR
18h 00m
1 stop
£502Lufthansa
Tue, 24 Feb - Tue, 3 Mar
Virgin Atlantic Logo
18:55 - 11:25
LCY
-
PDX
24h 30m
1 stop
Virgin Atlantic Logo
13:27 - 16:35
PDX
-
LCY
19h 08m
2 stops
£574Virgin Atlantic
Mon, 23 Feb - Mon, 2 Mar
Virgin Atlantic Logo
08:40 - 20:30
LCY
-
PDX
19h 50m
2 stops
Virgin Atlantic Logo
13:27 - 17:20
PDX
-
LCY
19h 53m
2 stops
£578Virgin Atlantic
Thu, 7 May - Tue, 19 May
British Airways Logo
19:05 - 21:38
LCY
-
PDX
34h 33m
2 stops
British Airways Logo
07:00 - 11:30
PDX
-
LCY
20h 30m
2 stops
£712British Airways
Booking Insights

KAYAK's insights & trends for London to Portland flights

Get data-powered insights and trends into flights from London to Portland to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to Portland
Find cheap flights to Portland

Planning a trip from London to Portland? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

How much is a return flight from London to Portland?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London to Portland departing in March.

What is the cheapest London to Portland flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Portland costs £548 on the route between London Heathrow Airport (LHR) and Portland (PDX). It is also the most popular route.

What’s the cheapest day of the week to fly from London to Portland?

The average price of all round-trip flights from London to Portland clicked on KAYAK for each day over the last 12 months.

For London to Portland, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Portland back to London, the best deals are generally found on Sunday, with Thursday being the most expensive.

What is the cheapest month to fly from London to Portland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Portland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Portland is September, where tickets cost £537 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is £777 and £755 respectively.

Can I save money by flying with a stopover from London to Portland?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £597 on average.

How far in advance should I book a flight from London to Portland?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Portland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London to Portland, you should book around 3 weeks before departure, which saves you about 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Expert advice

Expert advice for your flight from London to Portland

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Good to know - Cheap tickets from London to Portland

Low seasonJanuary
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly (9% more expensive on average)

When to book flights from London to Portland

Are your dates flexible? Find out the best times to travel from London to Portland based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Portland

  • How do I get to the city centre from Portland International Airport?

    The Trimet Max/Light Rail operates MAX Red Line service with departures every 15min to the downtown area from Portland International Airport. Airport car hire and taxi and rideshare services like Uber, Lyft and Wingz are additional options. Some major hotels also provide an airport shuttle service, so if your accommodation is in the centre, check if it's included.

  • Are there currency exchange locations at Portland International Airport?

    Currency Exchange International (CXI) operates from two locations at Portland International Airport. There’s one at Baggage Reclaim (landside), which is open Monday-Saturday from 10:00-16:00 local time and another at Concourse D (airside), with open hours from 07:30-15:30 daily. You can also find a few cash machines at International Arrivals.

  • What other cities are accessible from Portland International Airport?

    The city of Portland, Oregon, is well situated to explore the Pacific Northwest (Seattle, Boise) and the Bay Area (Sacramento, San Francisco, Oakland) by rail, car and bus. You can also take advantage of cross-border travel to Canada by visiting nearby Vancouver, British Columbia or Calgary, Alberta.

  • Are there any unique attractions at Portland International Airport?

    Portland International Airport offers a few cultural attractions to inspire and enhance your airport experience. Their art program has a rotating installation of nine exhibits featuring regional artists, while their music program showcases classical, jazz and contemporary music played by volunteer musicians. In addition, Hollywood Theatre at Concourse C previews film shorts focused on the Pacific Northwest region.

  • What is the cheapest flight from London to Portland?

    In the last 3 days, the lowest price for a flight from London to Portland was £258 for a one-way ticket and £426 for a return.

  • Which airports will I be using when flying from London to Portland?

    There are 4 airports in London (London City, London Gatwick, London Heathrow, and London Luton.) and only 1 airport in Portland (Portland). The cheapest flights are generally found on the London Gatwick Airport to Portland flight route.

  • Which airlines offer Wi-Fi service onboard planes from London to Portland?

    Virgin Atlantic, Air France, KLM, and Delta offer inflight Wi-Fi service on the London to Portland flight route.

  • Which aircraft models fly most regularly from London to Portland?

    The Boeing 787-8 Dreamliner is the aircraft model that flies most regularly on the London to Portland flight route.

  • Which airline alliances offer flights from London to Portland?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between London and Portland, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from London to Portland?

    You can catch a direct flight from London to Portland on on Monday, Wednesday, Friday, and Sunday.

  • Which is the best airline for flights from London to Portland, Finnair or Virgin Atlantic?

    The two airlines most popular with KAYAK users for flights from London to Portland are Finnair and Virgin Atlantic. With an average price for the route of £619 and an overall rating of 7.6, Finnair is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of £605 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from London to Portland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Portland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Portland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Portland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Portland with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Portland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portland from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Portland

  • Looking for a cheap flight from London to Portland? 25% of our users found flights on this route for £860 or less one-way and £643 or less round-trip.
  • Portland International Airport (PDX) in the U.S. state of Oregon is a joint civilian-military installation and the largest international airport in the city. It's about 12 miles from the city centre and uses one terminal for all flights.
  • Flights from London to Portland leave from two airports. Several airlines offer direct services on this route from London Heathrow Airport (LHR). These include Finnair, British Airways and American Airlines. You can also get a few flights with stops from London City Airport (LCY) via Delta Airlines, with at least two connections in Amsterdam and Seattle.
  • If you decide to park and fly, there are multiple options available at London City and London Heathrow airports to suit your travel needs. For example, you'll find Short Stay, Long Stay and Business parking at London Heathrow and special weekender rates at London City. These car parks allow you to book in advance or in person. In addition, all parking garages at both airports can accommodate Blue Badge holders.
  • After a long drive to the airport, it's ideal to relax and unwind before your flight. At London Heathrow, you have a choice of lounges at each of its five terminals, including multiple locations of Plaza Premium (T2/T4) and Club Aspire (T3/T5). In addition, there’s a First Class Lounge at London City Airport located in the Private Jet Centre Facility.
  • Both airports offer a range of services and facilities catering to persons with limited mobility, from dedicated parking spaces to mobility equipment and personal escorts who see you safely through airport security right up to your seat on the flight. If you require special assistance, it’s always best to book in advance.

Prefer to fly direct from London to Portland?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London to Portland.
Find which airlines fly direct from London to Portland Airport, which days they fly and book direct flights.

Direct departures

London to Portland

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Direct returns

Portland to London

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Reviews of the top 5 airlines flying from London to Portland

 
See real verified KAYAK customer reviews for airlines flying from London to Portland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Portland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
FinnairOverall score based on 1356 reviews
7.5Comfort
6.7Food
6.9Entertainment
8.2Crew
7.7Boarding
Airline reviews

Very good seat, very comfortable, good food, and good service.

10.0 ExcellentSunny, Jan 2026
HEL - DEL
Read more Finnair reviews

Very good seat, very comfortable, good food, and good service.

It was a good flight, very comfortable seats for sleeping in business class. Probably the most comfortable business class seat I've ever had (20+ times in business class on various airlines). Service was good, but the only downside is my screen didn't work and it had to be reset multiple times to get it to shut off. I had to block my eyes because the screen was white almost the entire flight and I wore an eye mask when I slept. But when eating and reading in my seat, my eyes hurt because the only way to turn the screen off was reset it and the screen would only be off for a few minutes at a time.

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

The flight attendant use 1.5 hours to answer my call. My dirty food tray was unattended.

The flight was completely full. Crew was not happy. Everyone was rude and brusque. Travelling with an arm in a cast and seating in the first row of economy cabin (in front of the separation) I needed help retrieving my tray for the meal. A staff member literally threw the tray on my lap, without helping to take out the tray. Boarding was messy, with 300 people waiting in an encloses space with low ceiling. I will try to avoid AA next time I have a long flight.

Seats were much more cramped then on the 737. Narrower and rows closer together. Flight was absolutely packed and the plugs under the seats didn't work. Was forced to check my bag even though previous flight had no issue with it.

The business class seats are dated and uncomfortable. The space is bare minimum and there is absolutely no privacy. For $4K, this is not what I expect.

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

Flight, food and crew were all good, friendly and very satisfactory.

Lost luggage after 2 days no word leaving on cruise no stuff or clothes

Staff's did their best to make everyone comfortable and I appreciate them for it

Pathetic check in experience once again. Not enough staff scheduled at bag drop or for special assistance at LHR. Really need to rethink the whole self check in procedure. The crew was good. A very decent selection of special meals in this leg as compared to the JFK-LHR leg.

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

It was good. The air plane is clean and staff were friendly.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything. Employees offered to help me because I had to use a cane.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

Great seat in premium economy, great food and drinks throughout lots of in flight entertainment. 1 hour 40 min delayed flying out , 2 1/2 hour wait at passport control in tampa

My seat cushion was poor. The cushion was compressed and was uncomfortable for such a long flight.

Everything you need to know for your flight from London to Portland

Other airlines flying from London to Portland

Flights from the other most popular airlines that fly from London to Portland according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.