LHR - PDX

$477 Find Cheap Flights from London Heathrow Airport 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 Heathrow to Portland departing on 8/18. 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, 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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Everything you should know

Cheapest round-trip
$1,103
Typical prices: $1,507-$1,123
Lufthansa
Sun 7/5Sat 7/18
LHR - PDX • 1 stop
Cheapest non-stop
$1,134
Typical prices: $1,145-$848
British Airways
Wed 8/12Tue 9/29
LHR - PDX • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
BA premium economy adds 7 inches of legroom and priority boarding on this long-haul route.
American Premium Economy adds meals; Iberia offers wider seats and USB power.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $1,103 (round-trip)
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with British Airways. Average duration is 10h 00m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 79% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $787 (round-trip)
Shortest trip • 12h 36m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
Good to know
+1
+1
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Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Heathrow to Portland (LHR-PDX)

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

Sun, Jul 5 - Sat, Jul 18
Lufthansa Logo
2:50 pm - 11:13 pm
LHR
-
PDX
16h 23m
1 stop
Lufthansa Logo
8:35 am - 7:25 am
PDX
-
LHR
14h 50m
1 stop
$1,103Lufthansa
Thu, Jul 16 - Wed, Jul 29
Icelandair Logo
9:25 pm - 5:55 pm
LHR
-
PDX
28h 30m
1 stop
Icelandair Logo
7:05 pm - 8:20 pm
PDX
-
LHR
17h 15m
1 stop
$1,104Icelandair
Wed, Jul 1 - Fri, Jul 10
Air Canada Logo
5:40 pm - 3:57 pm
LHR
-
PDX
30h 17m
2 stops
Air Canada Logo
7:45 pm - 1:20 pm
PDX
-
LHR
33h 35m
1 stop
$1,105Air Canada
Tue, Sep 1 - Fri, Sep 4
Scandinavian Airlines Logo
6:40 am - 7:44 pm
LHR
-
PDX
21h 04m
2 stops
Scandinavian Airlines Logo
12:25 pm - 1:35 pm
PDX
-
LHR
17h 10m
2 stops
$1,106Scandinavian Airlines
Wed, Aug 12 - Sat, Sep 26
Icelandair Logo
9:25 pm - 11:45 am
LHR
-
PDX
22h 20m
1 stop
Icelandair Logo
3:30 pm - 8:20 pm
PDX
-
LHR
20h 50m
1 stop
$1,109Icelandair
Sun, Jul 5 - Sun, Jul 12
British Airways Logo
12:30 pm - 11:30 pm
LHR
-
PDX
19h 00m
1 stop
British Airways Logo
11:43 am - 10:30 am
PDX
-
LHR
14h 47m
1 stop
$1,112British Airways
Wed, Jul 1 - Mon, Jul 13
Air Canada Logo
5:40 pm - 3:57 pm
LHR
-
PDX
30h 17m
2 stops
Air Canada Logo
10:10 am - 11:50 am
PDX
-
LHR
17h 40m
2 stops
$1,113Air Canada
Fri, Jun 26 - Sat, Jul 11
American Airlines Logo
12:00 pm - 8:47 pm
LHR
-
PDX
16h 47m
1 stop
American Airlines Logo
7:30 pm - 1:00 pm
PDX
-
LHR
9h 30mnonstop
$1,114American Airlines
Mon, Oct 5 - Mon, Oct 19
Scandinavian Airlines Logo
9:05 pm - 4:34 pm
LHR
-
PDX
27h 29m
3 stops
Scandinavian Airlines Logo
7:00 am - 9:35 am
PDX
-
LHR
18h 35m
2 stops
$1,115Scandinavian Airlines
Tue, Sep 22 - Fri, Sep 25
Scandinavian Airlines Logo
7:05 am - 10:17 pm
LHR
-
PDX
23h 12m
3 stops
Scandinavian Airlines Logo
12:36 pm - 6:30 pm
PDX
-
LHR
21h 54m
3 stops
$1,116Scandinavian Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to Portland flights

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Portland departing in July.

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

The average price of all round-trip flights from London Heathrow Airport 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 Wednesday and more expensive on a Saturday. On your return trip to London Heathrow Airport, you should consider flying back on a Monday, and avoid Saturdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport 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 Heathrow Airport to Portland is November, where tickets cost $753 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,303 and $1,203 respectively.

Can I save money by flying with a layover from London Heathrow Airport 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 $1,174 on average.

How far in advance should I book a flight from London Heathrow Airport 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 Heathrow Airport 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 Heathrow Airport to Portland, you should book around 3 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow 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
Marisa Garcia

Marisa Garcia

Expert on Iberia

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.

Duncan Madden

Duncan Madden

Expert on British Airways and LHR

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.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

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.

Gabriel Leigh

Gabriel Leigh

Expert on PDX

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

Low seasonJanuary
Cheapest flight$477
Most popular time to fly and prices are also 14% lower on average.
Flight from London Heathrow Airport to Portland

When to book flights from Heathrow to Portland

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

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

    In the last 5 days, the lowest price for a flight from London Heathrow Airport to Portland was $477 for a one-way ticket and $1,103 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in London Heathrow Airport and on arrival in Portland.

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

    When flying out of London Heathrow Airport you will be using London Heathrow. You will be landing at Portland, also known as Portland.

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

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

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

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

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

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

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

    There are nonstop flights from London Heathrow Airport 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 $1,319 and an overall rating of 7.1, American Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $1,064 and an overall rating of 6.7.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from London Heathrow Airport 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 Heathrow Airport 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 Heathrow Airport with another airline. Booking your flights between London Heathrow Airport and PDX can sometimes prove cheaper using this method.

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $710 or less one-way.

Prefer to fly direct from London Heathrow Airport to Portland?

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

Direct departures

London Heathrow 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 Heathrow

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 Heathrow 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 Heathrow 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.
7.1
American AirlinesOverall score based on 11662 reviews
7.2Comfort
6.8Entertainment
7.5Boarding
7.9Crew
6.4Food
Airline reviews

Crew was nice, aircraft dated, entertainment same. Internet is expensive and terribly slow. Food pretty bad

6.0 GoodSebastian, Jun 2026
LHR - CLT
Read more American Airlines reviews

Crew was nice, aircraft dated, entertainment same. Internet is expensive and terribly slow. Food pretty bad

Horrible experience. Food was ridiculous, insufficient, and not appetizing at all. They served sugary granola bar for breakfast. Furthermore, my bags were delayed and delivered damaged and American made it impossible to file for damages. Furthermore, the flights were delayed causing unnecessary stress given the connecting flights. It was awful experience, would never want to fly American.

My table was broken so it made it difficult to eat the food during the service. I was also informed that my luggage did not make it with me to Phoenix. I live two hours away so this makes it even more stressful to try and arrange a time for pick up

Part of my stress and frustration was 50% with the TSA security. However. It is nearly impossible, if you are flying long-range and carrying luggage, to get through security and to the Gate before it closes. I was scheduled to fly out at approximately 12 and got hung up at TSA from 11:00-11:20. When I looked at the screen, the gate was already closing. I have to run to gate 24. Barely made it - all that to say you might consider lengthening the connection time by at least 30 mins.

Very hard to beat a British Airways international flight…the crews are always so amazing! One flight attendant that really stood out was Emma…she was very personable and accommodating with any request we had!!

Everything went as planned. The only issue I had was with the gate C31 attendant. The person could barely speak English and was very difficult to understand.

The passport line was so long that many of us were concerned about missing our flight and some did. It would've helped if a AA representative had gone to the passport check-in sooner to advise that boarding was closing and those flying that were stuck back in the line, needed to come forward with apologies to others. An AA representative did do that but only after boarding had already closed. (They delayed take-off so that more who were running with carry-ons could get to the gate - especially stressful for older people!) Then to be crammed into a seat with barely enough leg room for a thin woman, 5'7", like me, much less for a taller, bigger person was not comfortable, especially if the person in front decided to lean back. Crew was fine, food and entertainment also.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

The seat when "flat" was not flat and pad was too thin to cover it.

Awful customer service, horrible experience. We travel a lot domestic & international- worst flights to/from ever. Brief bkgd as Inhate to relive this experience: booked and chose 2 seats 4 months prior in Premium Economy - last row end seats close to bathroom, no one behind us, plenty of legroom;, underwear storage — flown this was on other airlines, love it. We receive notice 4 days before scheduled overseas flight - plane has changed, new seats assigned. Seats are split into single seats, opposites of the plane, FRONT Row so no reachable storage. Called BOTH British Air & America. American “switched planes and the seats you want are taken;” British Air “Yes, we’ll be glad to accommodate you (type type type). Just ask at the Gate and someone will give you new boarding passes with seats together in middle, OK?” — OK. —At Gate the attendant looks us up saying “No, it is an overbooked flight and yours are the only seats available.” But but but wait, “We were TOLD our seats had been switched and seated together?” Gate attendant “Well they were wrong and don’t change your seats. Your original seats are where you’ll sit.”. Right. No help WHATSOEVER. We sit opposite on way there, wife VERY disgruntled, a Tol 5 worst ways to start a 3-week bus tour of UK. We promise to NEVER FLY AMERICAN OR BROTISH AIR EVER, and we have 3 more extensive trips planned..

Seats not as comfortable as I had hoped. Food was very nice, service was fine. Entertainment options very nice. Had thought the premium economy was a more plus 2-3-2 layout but it was a 2-4-2 with seats not as wide as I had expected.

I flew four flights on British Airways within two weeks. I was unable to download the boarding pass to my phone for any of the four flights. I could check-in for my flight but the system would not give me boarding pass. I tried multiple ways and multiple times. I discovered many other passengers also had the same issue with their boarding passes. No explanation or acknowledgement by BA.

Lovely big plane. Excellent take off and landing. Cabin crew were so nice. Flight in time no delays

Because our ABZ-LHR flight was cancelled by BA for reasons they refuse to tell us--not weather--we did not make this flight and were booked on the following day. BA offered no assistance to us on the phone or in the airport, and we had to find a hotel at Heathrow on our own.

Horrible - flight was delayed by 6 hours - we boarded, were made to de-board due some technical fault; aircraft changed; special meals request on new flight - all went awry. Landed in Dulles airport; breezed thru immigration; as Business Class passengers or baggage was delivered almost 90 minutes after landing; air tags indicated the bags were just near the carousel but the unhelpful BA staff - Maria and Ghina refused to give any update - palming it off on some imaginary invisible “manager” despite air tags evidence showing it right there. So about 50-60 passengers waiting and getting infuriatingly impatient for their bags coz one container was not delivered. Finally after much argument by some other passengers Maria condescended to go to the “ramp” and within 5 minutes the baggage was delivered miraculously. Question is why couldn’t she have done it one hour earlier ? Poor poor experience once again on Business Class BA.

Cheap Flight Fares would not provide booking info. I canceled the reservation and we arbitrated with American Express. They provided erroneous info to Amex and it was determined that C.F.F. deserved the price of the ticket. Worse experience I've ever had.

Seating space is appalling. Seats and all surrounding area in "Economy" is built for individuals shorter than 4' 10" and below 120 lbs. Ridiculous. While I'm not expecting fine dining, the food was the worst airplane food that I can recall.

Business class lounge for my gate was closed and no email was sent, causing me to walk back and forth to different gates, etc for over 20 minutes one way. Flight entertainment was mediocre with very poor choices especially for business class cabin. Original flight was cancelled and rebooking was difficult and no reason given for cancellation.

Very comfortable flight and simple and directed one way and back. Amazing price.

We loved our flight attendant, Emma from Scotland, the meal and entertainment offerings were wonderful, the flight was smooth, and enough leg room to stretch. We would fly with you again!

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

Information on your arrival and departure airports