LON - PDX

$611 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 10/2. 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

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, 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 London to Portland, as well as popular online travel agencies
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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 round-trip 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 round-trip flight deals from London to Portland

Mon, Oct 6 - Mon, Oct 20
Air Canada Logo
10:15 am - 6:46 pmLHR-PDX
16h 31m2 stops
Air Canada Logo
3:25 pm - 1:20 pmPDX-LHR
13h 55m1 stop
$682Air Canada
Find Deal
Mon, Sep 29 - Mon, Oct 20
Air Canada Logo
10:15 am - 6:46 pmLHR-PDX
16h 31m2 stops
Air Canada Logo
3:25 pm - 1:20 pmPDX-LHR
13h 55m1 stop
$686Air Canada
Find Deal
Fri, Mar 6 - Tue, Mar 10
American Airlines Logo
11:20 am - 11:45 pmLGW-PDX
44h 25m2 stops
American Airlines Logo
10:59 pm - 7:30 amPDX-LGW
25h 31m2 stops
$692American Airlines
Find Deal
Fri, Mar 6 - Tue, Mar 10
Icelandair Logo
11:55 am - 5:00 pmLGW-PDX
13h 05m1 stop
Icelandair Logo
3:45 pm - 10:55 amPDX-LGW
12h 10m1 stop
$703Icelandair
Find Deal
Mon, Nov 24 - Mon, Dec 1
British Airways Logo
1:45 pm - 3:55 pmLHR-PDX
10h 10mnonstop
British Airways Logo
5:45 pm - 11:20 amPDX-LHR
9h 35mnonstop
$710British Airways
Find Deal
Mon, Nov 3 - Mon, Nov 17
Multiple Airlines Logo
1:45 pm - 3:55 pmLHR-PDX
10h 10mnonstop
Multiple Airlines Logo
5:45 pm - 11:20 amPDX-LHR
9h 35mnonstop
$711Multiple Airlines
Find Deal
Mon, Oct 6 - Mon, Oct 20
American Airlines Logo
3:40 pm - 5:35 pmLHR-PDX
9h 55mnonstop
American Airlines Logo
7:25 pm - 1:00 pmPDX-LHR
9h 35mnonstop
$712American Airlines
Find Deal
Thu, Mar 12 - Thu, Mar 19
Multiple Airlines Logo
6:30 am - 6:30 pmLHR-PDX
19h 00m2 stops
Multiple Airlines Logo
9:50 am - 11:20 amPDX-LHR
18h 30m2 stops
$713Multiple Airlines
Find Deal
Fri, Mar 6 - Tue, Mar 10
British Airways Logo
1:45 pm - 3:55 pmLHR-PDX
10h 10mnonstop
British Airways Logo
2:16 pm - 11:40 amPDX-LHR
14h 24m1 stop
$739British Airways
Find Deal
Mon, Oct 20 - Sat, Oct 25
Icelandair Logo
9:25 pm - 5:55 pmLHR-PDX
28h 30m1 stop
Icelandair Logo
3:20 pm - 11:50 amPDX-LHR
12h 30m1 stop
$761Icelandair
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
BA's premium economy offers 7 inches extra legroom.
Use the Trimet Red Line for easy access from PDX.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Air Canada
Cheapest • from $682 (round-trip)
American Airlines
Best reviews • 7.2 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
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 15% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$682
Overall average: $838
Air Canada
Mon 10/6Mon 10/20
LHR - PDX • 2 stops
Cheapest non-stop
$710
Typical prices: $801-1102
British Airways
Mon 11/24Mon 12/1
LHR - PDX • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Portland!
Expert advice

Expert advice for your flight from London to Portland

 
Snippets provided in this section are AI-generated based on a summarization 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
Iberia

Iberia's business class offers all-aisle access and Wi-Fi for connectivity.


Iberia's premium economy offers 37” seat pitch and 18.5” width for comfort.

Read more about Iberiaby Marisa Garcia
British Airways

BA's premium economy offers 7 inches extra legroom, ideal for long flights.


BA's cabin crew are professional and proactive, enhancing the flight experience.

American Airlines

AA's Main Cabin Extra offers early boarding and complimentary drinks.


AA's Premium Economy includes upgraded seats and complimentary meals.

Airports
LHR

For a smooth departure from Heathrow, arrive two hours early and monitor flight screens closely for gate announcements.

Read more about LHRby Duncan Madden
PDX

Upon arrival at PDX, use the Trimet Red Line for a quick and budget-friendly ride into Portland.

Read more about PDXby Gabriel Leigh
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Duncan Madden

Duncan Madden

Expert on British Airways and LHR

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
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on PDX

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
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.

How much is a round-trip flight from London to Portland?

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 $750 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.

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

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 $747 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $1,081 and $1,073 respectively.

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

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $858 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 2 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$611
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from London Stansted Airport to Portland

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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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

  • 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 $611 for a one-way ticket and $682 for a round-trip.

  • Do I need a passport to fly between London and Portland?

    A passport is required to fly from London to Portland.

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

    London is served by 4 major airports and there is only 1 main airport in Portland. You will leave London from one of these airports: London Gatwick, London Heathrow, London Luton, or London Stansted. You will be arriving at Portland.

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

    Only Delta offers inflight Wi-Fi service on the London to Portland flight route.

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

    The Boeing 787-10 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?

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

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

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

  • Which is the best airline for flights from London to Portland, American Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from London to Portland are American Airlines and British Airways. With an average price for the route of $864 and an overall rating of 7.2, American Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $947 and an overall rating of 6.6.

  • 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 round-trip 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? 25% of our users found flights on this route for $885 or less one-way.

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 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.
7.2
American AirlinesOverall score based on 10000 reviews
7.5Boarding
7.2Comfort
6.4Food
6.9Entertainment
8.0Crew
Airline reviews

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

10.0 ExcellentStanley, Aug 2025LHR - CLT
Read more American Airlines reviews

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

Very clean and comfortable cabin. Amazing Mediterranean salad for lunch before landing. Great range of films to watch. Really quiet and easy to sleep on the flight also. The initial food was a bit weird: odd fried chicken pieces in some weird white gloop, but that would be my lack of cultural knowledge on the grub. Salad more than made up for it at the other end. Staff were super attentive and helpful. Great and easy flight

I flew Business Class. Rory, one of the Cabin stewards, was attentive, explained the menu, provided appropriate drinks. was

The flight crew were friendly and attentive. Food was good and they passed out ice cream and drinks awhile after Lunch was done. The ice cream was a nice treat! I found several movies to watch during the flight. There was many movies and tv shows to choose from. We flew Premium economy and there was enough leg room to be comfortable. The seats were also comfortable. I would fly AA again if the airfare isn’t expensive.

Gate check bags that had to be gate checked because of first flight being a small flight are missing. British airways lost the luggage and haven’t met up with them yet!

Staff lovely , economy seats very uncomfortable , wheelchair assistance wonderful in Heathrow awful in Nashville !

Good crew and a great experience. Only good things to say.

Great thanks - a whole row to myself. Good food but film selection not great.

what would have been better would have been that my booking not been canceled by the system and had I been informed that the booking had been cancelled by the system I could have immediately rebooked and not found out that there was an issue when I was told by the system that I needed to book in. It would have also been good if either the booking agent or BA or anyone been in anyway useful. In the end I had to rebook a flight at an additional cost of $350. So no I'm not impressed by BA any of the other parties involved.

Boarding was poor. Why are first class passengers not boarded first?! Bus to the plane and then held on a packed bus because we were waiting for people on the bus before to finish boarding. Seat belt on the fist clas seat is very uncomfortable, cutting into your neck. Other than that crew, seating and food were all excellent. Entertainment, as usual - rubbish.

Flight was delayed but my previous flight was as well so It worked to my advantage. This was my first time in first class. I don't think they ever stopped feeding us. The seating area was very spacious and comfortable. The attendants were wonderful, warm, friendly and very personable.

We had a pretty good experience. Enjoyed both the flights. Crew was very good and helpful.

They issued seat assignments and sat my 2 year-old in the row behind me, separate from me and my daughter. Communication/ customer service was terrible. They told me to change it in London, then in London, they told me to talk to the cabin crew, then a supervisor came and stuck us in the back of the plane when we were supposed to be in row 25. Overall, they need to really work on their customer service. Additionally the food was terrible and they ran out of meals and didn’t have any kid options. To top it off there was no in-flight entertainment for the first hour of the trip.

We missed the connection because we had to wait for a shuttle from the plane to the Terminal. Also, we needed assistance and none was available.

When we arrived at the airport - 1st step - printing out your boarding pass - no issue. Not long lines as these machines. 2nd step - processing your bag drop off. There was only one associate there to help 10 kiosks. We had a family in front of us for 20 minutes trying to work on the machine and figure out every step for 4 pieces of luggage. My husband alerted the associate who was able to assist the family. Highly suggest that there are more associates to assist in this process. Besides this issue, security check went very quickly. Our flight was direct to Philadelphia. We had to carry our bags down two flights of steps, then out to the tarmac to a bus, then carry our bags up two flights of stairs to the plane. No one on the flight was expecting that long trek. I could see some people were struggling a bit. All in all - great flight crew, plane was clean and food was great!

There were no gluten-free vegan options available, so food was very limited on this flight, and some of the crew weren’t especially helpful about it. To make matters worse, a passenger was sick on board, and although the area was cleaned, the smell lingered for the rest of the journey. On top of that, we ended up circling for an extra hour, which only made the unpleasant situation drag on even longer.

Checking in prior on line and wait time at Gatwick was terrible. I would rate a big fat ZERO.

I checked in to bags, one arrived one was delayed. I did not receive the bag for 4 days - arrived on Tuesday, received bag on Saturday!

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

Information on your arrival and departure airports

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