PDX - LHR

£214 Find Cheap Flights from Portland to London Heathrow Airport

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 Heathrow departing on 25/2. 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 Heathrow Airport

 
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
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Flight Deals

Cheap Flights from Portland to Heathrow (PDX-LHR)

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

Wed, 14 Jan - Thu, 29 Jan
Virgin Atlantic Logo
06:00 - 07:05PDX-LHR
17h 05m1 stop
Virgin Atlantic Logo
11:05 - 17:35LHR-PDX
14h 30m1 stop
£433Virgin Atlantic
Find Deal
Wed, 14 Jan - Wed, 21 Jan
Iberia Logo
17:45 - 11:20PDX-LHR
9h 35mdirect
Iberia Logo
19:05 - 11:45LHR-PDX
24h 40m2 stops
£436Iberia
Find Deal
Tue, 20 Jan - Tue, 27 Jan
Lufthansa Logo
09:50 - 10:10PDX-LHR
16h 20m2 stops
Lufthansa Logo
06:35 - 18:30LHR-PDX
19h 55m2 stops
£441Lufthansa
Find Deal
Wed, 12 Nov - Wed, 19 Nov
KLM Logo
14:23 - 10:30PDX-LHR
12h 07m1 stop
KLM Logo
06:30 - 11:25LHR-PDX
12h 55m1 stop
£442KLM
Find Deal
Wed, 14 Jan - Wed, 21 Jan
British Airways Logo
17:45 - 11:20PDX-LHR
9h 35mdirect
British Airways Logo
13:45 - 15:55LHR-PDX
10h 10mdirect
£445British Airways
Find Deal
Wed, 3 Dec - Tue, 9 Dec
British Airways Logo
17:45 - 11:20PDX-LHR
9h 35mdirect
British Airways Logo
15:00 - 23:23LHR-PDX
16h 23m1 stop
£447British Airways
Find Deal
Wed, 28 Jan - Wed, 11 Feb
KLM Logo
11:59 - 11:40PDX-LHR
15h 41m1 stop
KLM Logo
06:30 - 11:25LHR-PDX
12h 55m1 stop
£449KLM
Find Deal
Tue, 25 Nov - Tue, 9 Dec
Lufthansa Logo
09:50 - 11:50PDX-LHR
18h 00m1 stop
Lufthansa Logo
07:40 - 18:06LHR-PDX
18h 26m2 stops
£460Lufthansa
Find Deal
Mon, 16 Mar - Thu, 16 Apr
Icelandair Logo
15:45 - 10:50PDX-LHR
12h 05m1 stop
Icelandair Logo
21:25 - 18:00LHR-PDX
28h 35m1 stop
£462Icelandair
Find Deal
Tue, 28 Apr - Mon, 4 May
Icelandair Logo
15:45 - 11:55PDX-LHR
12h 10m1 stop
Icelandair Logo
13:05 - 18:00LHR-PDX
12h 55m1 stop
£466Icelandair
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by travel experts
Finnair's Wi-Fi offers good speeds on long-haul flights.
British Airways' premium economy adds 18 cm legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Virgin Atlantic
Cheapest • from £433 (return)
Virgin Atlantic
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
5 weeks
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 21% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 18% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Direct flights
4 days a week
There are direct flights from Portland to Heathrow 4 days a week: Mon, Wed, Fri, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Cheapest return fare
£433
Typical prices: £510-£688
Virgin Atlantic
Wed 14/1Thu 29/1
PDX - LHR • 1 stop
Cheapest direct flights
£439
Typical prices: £534-£720
British Airways
Wed 12/11Wed 19/11
PDX - LHR • Direct
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 Heathrow!
Booking Insights

KAYAK's insights & trends for Portland to Heathrow flights

Get data-powered insights and trends into flights from Portland to Heathrow 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 Heathrow Airport?

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 Heathrow Airport departing in January.

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

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

If your flying dates are flexible, you should consider flying to London Heathrow Airport on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Portland to London Heathrow Airport. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to London Heathrow Airport, 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 Heathrow Airport is October, where tickets cost £521 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £1,006 and £823 respectively.

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

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.

No, with an average price for the route of £498, prices are generally cheapest when you fly direct.

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

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 Heathrow Airport, 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 Heathrow Airport, you should book around 5 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

Expert advice for your flight from Portland to Heathrow

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Finnair

Finnair's A350 features lower cabin altitude and higher humidity, enhancing passenger comfort.


Finnair's Wi-Fi is available on most long-haul flights, keeping you connected at good speeds.

Read more about Finnairby Gabriel Leigh
British Airways

Upgrade to premium economy for 18 cm extra legroom, enhancing comfort on long flights.


BA's premium economy offers priority boarding and larger baggage allowance for long-haul comfort.

Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel Leigh

Gabriel Leigh

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.

Read more
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan Madden

Duncan Madden

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.

Read more

Good to know - Cheap tickets from Portland to London Heathrow Airport

Low seasonJanuary
Cheapest flight£214
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flight from Portland to London Heathrow Airport

When to book flights from Portland to Heathrow

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

  • What is the cheapest flight from Portland to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Portland to London Heathrow Airport was £214 for a one-way ticket and £433 for a return.

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

    Portland and London Heathrow Airport are both served by 1 main airport. You will leave Portland from Portland and will be arriving at London Heathrow.

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

    All the following airlines offer inflight Wi-Fi service on the Portland to London Heathrow Airport flight route: American Airlines, KLM, Delta, Air France, Virgin Atlantic, Iberia, and Vueling.

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

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

  • Which airline alliances offer flights from Portland to London Heathrow Airport?

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

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

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

  • 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 £632 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 £456 and an overall rating of 7.1.

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

    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 Heathrow Airport.

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

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

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

    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 Heathrow Airport 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 Heathrow Airport?

    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 Heathrow Airport from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Portland to London Heathrow Airport?

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

Direct departures

Portland to London Heathrow

Monday

British Airways

British Airways

Wednesday

British Airways

British Airways

Friday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Direct returns

London Heathrow to Portland

Monday

British Airways

British Airways

Wednesday

British Airways

British Airways

Friday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Reviews of the top 4 airlines flying from Portland to Heathrow

 
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 Heathrow? 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 670 reviews
6.9Food
7.3Comfort
7.5Entertainment
8.1Crew
7.7Boarding
Airline reviews

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

10.0 ExcellentAnonymous, Oct 2025LAX - LHR
Read more Virgin Atlantic reviews

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.

Food was excellent. Service was very good. Staff was very helpful to all passengers.

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

It was too cold in the plane my feet froze

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

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.

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

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

The food on the flight was of marginal quality. Small bits of chicken, instant mashed potatoes and some carrots. The rolls were very dry, nearly inedible. The seats were quite small and didn’t allow for any shifting of position during the flight. There was limited leg room.0

The seats are so small that you can barely move at all. Don't try to eat with utensils in your seat either - you will elbow your neighbor in the face. Miserably small and I swear they are shrinking every time I fly. Food was meh (per usual), but at least there is free alcohol on an overseas flight. Doesn't make up for sitting in a torture chamber while hurtling through the air with hundreds of fussy people, but it's something. Entertainment options (movies, shows) are okay, nothing special, but at least there are screens, because most of the seats in these large planes do not have adjustable lighting - or air control - that you can get to, it's too high to reach - which makes reading impossible. Zero stars, AA.

Terrible customer service. I booked business class and the counter agent didn’t bother asking me about any choice or preferred seat, basically assigned me that last seat and couldn’t even answer if it was a business class seat. Also iberia lost my suitcase on my flight from JFK to MAD with the layover in BCN. Useless customer service at the counter. Thank goodness I happened to check the baggage claim area of the next flight in…there it was.

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

We departed late but made up most of the time in flight. Our ticket was pure economy, so it wasn’t anything fancy; however, I heard that we arrived in Madrid at the exact same time that First Class passengers arrived! Overall, our experience was similar to what we had on other American Airlines transatlantic flights - good value at a reasonable price. We were even able to get our carry-on baggage onto the plane without needing to gate check it.

The crew were friendly and helpful. Iberia lost our luggage on arrival, Friday and we didn't get it until Sunday at 10:00 p.m. local Malaga time. I also paid $382.80 for seat assignments but two out out of the four were not together. Iberia mentioned that it was because the plane was delayed in Madrid before our flight began in LAX. They should compensate us half of my payment.

It was fortunate that the flight arrived in London in accordance with schedule, and the luggage was promptly transferred to the luggage carousel. However, I find it concerning that even minor issues in economy cabins are prevalent within the industry. American Airlines, in particular, appears to have the least legroom and feels more crowded due to the proximity of neighboring passengers. Additionally, the crew’s adherence to protocol is inconsistent. While they may enforce certain rules set by the FAA on a select few individuals, they often overlook numerous violations, such as failing to reset seat recline during landing.

Easy and organized getting in and out of the flight

We liked the flight but while we purchased an aisle seat, our seats had a different configuration on this flight. A fellow passenger suggested that the airplane had been changed. Too bad we were not informed and had no chance to modify our seat preferences. We were stuck in the window and middle seats with no chance to walk around and go to the bathroom without disturbing our sleeping fellow passenger.

The crew were not very personable. The crew did not serve tea or coffee. The bathroom was not kept clean. Two out of the 5 toilets in the cabin weren't working.

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

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