PDX - LON

£184 Find Cheap Flights from Portland to London – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to London departing on 15/10. 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 London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to London, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£690
Typical prices: £748-£497
Icelandair
Fri 21/8Wed 16/9
PDX - LHR • 1 stop
Cheapest direct flights
£714
Typical prices: £855-£572
British Airways
Sun 6/9Wed 16/9
PDX - LHR • Direct
Top airlines
Cheapest • from £690 (return)
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with British Airways. Average duration is 9h 30m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £496 (return)
Shortest trip • 11h 55m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% price drop
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 London!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Portland to London (PDX-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portland to London 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 Portland to London

Fri, 21 Aug - Wed, 16 Sep
Icelandair Logo
19:05 - 11:55
PDX
-
LHR
32h 50m
1 stop
Icelandair Logo
13:05 - 17:55
LHR
-
PDX
12h 50m
1 stop
£690Icelandair
Sun, 4 Oct - Tue, 6 Oct
British Airways Logo
07:25 - 06:50
PDX
-
LHR
15h 25m
1 stop
British Airways Logo
07:50 - 17:26
LHR
-
PDX
41h 36m
2 stops
£692British Airways
Fri, 21 Aug - Wed, 16 Sep
Multiple Airlines Logo
19:05 - 11:45
PDX
-
LGW
32h 40m
1 stop
Multiple Airlines Logo
14:00 - 13:37
LGW
-
PDX
31h 37m
2 stops
£692Multiple Airlines
Sun, 11 Oct - Sat, 24 Oct
Delta Logo
13:38 - 12:10
PDX
-
LHR
14h 32m
1 stop
Delta Logo
06:30 - 11:10
LHR
-
PDX
12h 40m
1 stop
£693Delta
Sat, 18 Jul - Mon, 17 Aug
Icelandair Logo
15:30 - 11:45
PDX
-
LGW
12h 15m
1 stop
Icelandair Logo
15:40 - 11:45
LGW
-
PDX
28h 05m
1 stop
£693Icelandair
Sun, 2 Aug - Tue, 18 Aug
Virgin Atlantic Logo
17:50 - 15:35
PDX
-
LHR
13h 45m
1 stop
Virgin Atlantic Logo
20:55 - 11:10
LHR
-
PDX
22h 15m
1 stop
£694Virgin Atlantic
Sun, 4 Oct - Tue, 6 Oct
British Airways Logo
19:30 - 13:00
PDX
-
LHR
9h 30mdirect
British Airways Logo
14:45 - 22:59
LHR
-
PDX
16h 14m
1 stop
£695British Airways
Sat, 19 Sep - Fri, 25 Sep
Multiple Airlines Logo
15:30 - 15:45
PDX
-
LGW
16h 15m
2 stops
Multiple Airlines Logo
13:05 - 12:59
LGW
-
PDX
31h 54m
1 stop
£695Multiple Airlines
Tue, 13 Oct - Sat, 31 Oct
Delta Logo
13:05 - 09:00
PDX
-
LHR
11h 55m
1 stop
Delta Logo
08:40 - 12:20
LHR
-
PDX
34h 40m
1 stop
£696Delta
Tue, 15 Sep - Mon, 21 Sep
Virgin Atlantic Logo
13:05 - 09:30
PDX
-
LCY
12h 25m
1 stop
Virgin Atlantic Logo
17:50 - 11:10
LCY
-
PDX
25h 20m
1 stop
£704Virgin Atlantic
Booking Insights

KAYAK’s insights & trends for Portland to London flights

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

How much is a return flight from Portland to London?

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

What is the cheapest Portland to London flight route?

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

The cheapest return flight from Portland to London costs £725 on the route between Portland (PDX) and London Heathrow Airport (LHR). It is also the most popular route.

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

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

Your flight ticket price will generally be cheaper if you fly to London on a Sunday and more expensive on a Wednesday. On your return trip to Portland, you should consider flying back on a Thursday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to London, 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 Portland to London is March, where tickets cost £348 (return) on average. On the other hand, the most expensive months are September and June, where the average cost of round-trip tickets is £979 and £534 respectively.

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

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 2 stops stopover the cheapest option at £597 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to London, 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 Portland to London, you should book around 5 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Expert advice

Expert advice for your flight from Portland to London

 
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
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.

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.

Good to know - Cheap tickets from Portland to London

Low seasonFebruary
Cheapest flight£184
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (3% more expensive on average)
Flight from Portland to London Stansted Airport

When to book flights from Portland to London

Are your dates flexible? Find out the best times to travel from Portland to London 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 Portland to London

  • Are there any nonstop flights from Portland International Airport (PDX) to London?

    While there are no nonstop flights between these two cities, American Airlines offers one-stop services that include a layover at Chicago O'Hare International Airport. Alaska Airlines also offers service to Los Angeles International Airport, where you can then take British Airways to London Heathrow International Airport.

  • If I am driving myself to Portland International Airport for my flight to London, what are the parking options?

    There are several options to park your car at the airport. You can park in the short-term lot for about $27 a day, the long-term lot for about $24 a day, and the economy lot for about $12 a day. You can also use valet parking available at the airport for around $35 per day.

  • Are there any hotels near London Heathrow International Airport (LHR)?

    There are two great options for hotels with locations right on the airport property. The Hilton Garden Inn London Heathrow and the Aerotel London Heathrow are both perfect spots for travelers that want to stay at the airport.

  • Are there any airport lounges at Portland International Airport where I can wait for my flight to London?

    Alaska Airlines has a lounge at Portland International Airport. Amenities include food and beverage choices, Wi-Fi, newspapers and magazines, plus several televisions and comfortable seating areas. The location of the lounge is just across from Gate C5.

  • What is the cheapest flight from Portland to London?

    In the last 3 days, the lowest price for a flight from Portland to London was £184 for a one-way ticket and £690 for a return.

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

    When flying out of Portland you will be using Portland. You will be landing at one of these airports: London Gatwick, London Heathrow, London Luton, London Southend, or London Stansted.

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

    American Airlines, Iberia, and KLM offer inflight Wi-Fi service on the Portland to London flight route.

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

    The Boeing 787-10 Dreamliner is the aircraft model that flies most regularly on the Portland to London flight route.

  • Which airline alliances offer flights from Portland to London?

    oneworld is the only airline alliance operating flights between Portland and London.

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

    There are direct flights from Portland to London on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Portland to London are Virgin Atlantic and Icelandair. With an average price for the route of £647 and an overall rating of 7.5, Virgin Atlantic is the most popular choice. Icelandair is also a great choice for the route, with an average price of £575 and an overall rating of 7.0.

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

    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 Portland to London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Portland 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 Portland to London?

    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 London with an airline and back to Portland with another airline.

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

    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 London from Portland 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 Portland to London

  • For a quick and convenient way to get to Portland International Airport (PDX) hop aboard the TriMet light rail service. The trip from Downtown Portland takes just a little less than 40min and the fare to ride is around $2.50.
  • If you have just arrived on your flight from Portland and need to do a currency exchange, Travelex offers two locations at London Heathrow Airport (LHR). One is in Terminal 2 and the other is in Terminal 5.
  • If you have some time before your flight to London Heathrow and would like something to eat, there are several options at Portland International Airport. These range from the classic burgers at Burgerville, to the pub fare of Henry's Tavern, to the healthy juices and snacks at Jamba Juice.
  • For those looking to refresh after their long flight, the Be Relax Spa at London Heathrow International Airport offers a full menu of spa treatments and services some of which can get done in as little as 15min. They have locations at gate B35 and Gate A18.
  • Bicycles are a popular method of transportation in the Portland area. Because of that, there are bike rack locations at both the north and south end of the terminal building at Portland International Airport if you would like to bike to the airport before your flight to London Heathrow.
  • London is well known for its extensive network of public transportation bus options, and the London Heathrow International Airport offers access to this amazing service. The location of the bus terminal at the airport is between Terminals 2 and 3 and is open 24h per day.

Prefer to fly direct from Portland to London?

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

Direct departures

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

Direct returns

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

Reviews of the top 3 airlines flying from Portland to London

 
See real verified KAYAK customer reviews for airlines flying from Portland to London. 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 Portland to London? 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.
7.5
Virgin AtlanticOverall score based on 689 reviews
7.5Entertainment
8.1Crew
7.7Boarding
7.3Comfort
6.9Food
Airline reviews

Seating and zone. The minor I went with didn’t even seat close to me

4.0 OkayAnonymous, Mar 2026
BOS - LIS
Read more Virgin Atlantic reviews

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

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

The flight itself was fine, even with a one-hour delay leaving on the Reykjavik tarmac (the lost time was made up during flight). Our experience at the Reykjavik airport on arrival was terrible due mostly to the one hour it took for passport control. Only two stations were open for our category, and the room was full with a huge crowd.

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

They cancelled our connecting flight resulting in another layover reaching our final destination 8 hours later than scheduled.

The Check-in process at CDG was confusing and the crew was not helpful. But the flight was on-time and that is most important to me.

At least one soda free, felt like I was nickeled to death.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Screen didn't work, and neither did the button to tilt the seat even though the seat was comfortable

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

Boarding process was chaotic. Confusion over Boarding gates: gate 55 or gate 56 ???. Unnecessary standing in long lines to board. Better to call out Boarding groups one at a time and everyone else to sit. Airline only has 2 Boarding groups 1-3 and 4-9. That causes over crowding and chaos

Lady next to me was coughing profusely the entire flight, other lady moved seats because of it, 8 hours of that during an overnight flight is a bit much.

3.5 hr delay leaving Pittsburgh, notifications for which were incomplete and untimely. Connecting flight was automatically switched to one requiring more than a 30 hour layover! After waiting in a long queue, customer service reduced layover to 11 hours and also set up an earlier standby. The standby had empty seats, but the gate agent couldn't change our tickets! On top of all that my luggage was lost and has yet to even be located, much less returned 5 (FIVE!) days later. Too bad there's no rating below poor.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

The seats are extra cramped if you are taller than 5’8! Spring for the extra legroom seats for sure if you have a long flight!

Very disappointed with British Airways. It has been over 24 hours and I still have not received my checked baggage or any proper update. Customer support has been unresponsive, making the situation even more frustrating. Poor baggage handling and lack of communication seriously impacted my travel experience.

Flight was good but temp in the cabin was cold.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

Cancelled flight and re booked seats were a downgrade. British Airways said the upgrade was t available but when I checked it was but then they wouldn’t make it right

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

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

Information on your arrival and departure airports