LHR - PDX

£357 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 26/9. 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.
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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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 return 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 return flight deals from Heathrow to Portland

Mon, 1 Sep - Mon, 15 Sep
Icelandair Logo
21:25 - 17:55LHR-PDX
28h 30m1 stop
Icelandair Logo
15:20 - 20:20PDX-LHR
21h 00m1 stop
£484Icelandair
Find Deal
Tue, 9 Sep - Mon, 15 Sep
Icelandair Logo
21:25 - 17:55LHR-PDX
28h 30m1 stop
Icelandair Logo
15:20 - 11:55PDX-LHR
12h 35m1 stop
£487Icelandair
Find Deal
Tue, 9 Sep - Mon, 15 Sep
Icelandair Logo
21:25 - 17:55LHR-PDX
28h 30m1 stop
Icelandair Logo
15:20 - 11:55PDX-LHR
12h 35m1 stop
£487Icelandair
Find Deal
Tue, 9 Sep - Mon, 15 Sep
British Airways Logo
15:40 - 17:35LHR-PDX
9h 55mdirect
British Airways Logo
14:06 - 12:45PDX-LHR
14h 39m1 stop
£535British Airways
Find Deal
Tue, 9 Sep - Mon, 15 Sep
British Airways Logo
15:40 - 17:35LHR-PDX
9h 55mdirect
British Airways Logo
10:28 - 07:20PDX-LHR
12h 52m1 stop
£536British Airways
Find Deal
Tue, 23 Sep - Sun, 19 Oct
United Airlines Logo
06:30 - 14:46LHR-PDX
16h 16m2 stops
United Airlines Logo
10:05 - 11:10PDX-LHR
17h 05m2 stops
£543United Airlines
Find Deal
Tue, 9 Sep - Mon, 15 Sep
United Airlines Logo
09:30 - 20:03LHR-PDX
18h 33m2 stops
United Airlines Logo
22:45 - 20:40PDX-LHR
13h 55m1 stop
£546United Airlines
Find Deal
Mon, 25 Aug - Tue, 9 Sep
Virgin Atlantic Logo
06:30 - 11:20LHR-PDX
12h 50m1 stop
Virgin Atlantic Logo
16:58 - 13:10PDX-LHR
12h 12m1 stop
£548Virgin Atlantic
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Tue, 9 Sep - Thu, 18 Sep
Lufthansa Logo
06:30 - 18:46LHR-PDX
20h 16m2 stops
Lufthansa Logo
10:55 - 12:20PDX-LHR
17h 25m1 stop
£564Lufthansa
Find Deal
Thu, 25 Sep - Wed, 1 Oct
Lufthansa Logo
06:30 - 18:46LHR-PDX
20h 16m2 stops
Lufthansa Logo
07:30 - 14:10PDX-LHR
22h 40m1 stop
£567Lufthansa
Find Deal
Expert advice

Expert advice for your flight from Heathrow to Portland

 
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
British Airways

BA's premium economy offers 18 cm extra legroom, crucial for long-haul comfort.


BA's cabin crew are known for professionalism and proactive service, enhancing the travel experience.

Finnair

Finnair's Economy Comfort offers extra legroom for a small charge, enhancing long-haul comfort.


Finnair's A350 features lower cabin altitude and higher humidity, ensuring a more comfortable arrival.

Read more about Finnairby Gabriel Leigh
Our travel experts
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
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
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?

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 Tuesday and more expensive on a Sunday. On your return trip to London Heathrow Airport, you should consider flying back on a Friday, 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 £592 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is £895 and £815 respectively.

Can I save money by flying with a stopover from London Heathrow Airport 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.

No, with an average price for the route of £2,408, prices are generally cheapest when you fly direct.

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 2 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.


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

Low seasonJanuary
Cheapest flight£357
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (33% more expensive 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 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 London Heathrow Airport to Portland flights

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Portland was £472 for a one-way ticket and £641 for a return.

  • 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?

    Only Delta offers 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 direct flights from London Heathrow Airport to Portland on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from London to Portland are Delta and Virgin Atlantic. With an average price for the route of £1,110 and an overall rating of 8.0, Delta is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of £657 and an overall rating of 7.4.

  • 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 travellers 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 return ticket. You could then fly to Portland with an airline and back to London Heathrow Airport with another airline.

  • 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 from Portland to London Heathrow Airport? 25% of our users found flights on this route for £870 or less one-way and £661 or less round-trip.

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

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Tuesday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Wednesday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Thursday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Friday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Saturday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Sunday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

See more direct flights

Direct returns

Portland to London Heathrow

Monday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Tuesday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Wednesday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Thursday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Friday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Saturday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Sunday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

See more direct flights

Reviews of the top 5 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.
7.6
FinnairOverall score based on 1316 reviews
6.9Entertainment
7.5Comfort
7.6Boarding
6.7Food
8.1Crew
Airline reviews

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

6.0 GoodAnonymous, Jul 2025HEL - DFW
Read more Finnair reviews

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.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

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 crew was excellent as ever on Virgin. The special meal was poor unfortunately. More significantly when we arrived at Manchester Airport there was no air bridge provided and we had to exit the plane down a rickety stair case. This is unacceptable for a transatlantic flight. Whilst I understand that this is the airport’s fault at the end of the day the airline is responsible for our transportation and needs to do something.

Super friendly and helpful staff, from check-in desk to cabin crew.

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

For a four hour flight, I was disappointed that everything was for purchase except for coffee, tea, or water. The disembarking in Iceland was so inefficient and time-consuming. We landed and stopped in the middle of the tarmac, had to disembark in the rain, and then squeeze into a bus which took us to the airport. Crazy! How does that work in winter?

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

The flight crew was friendly and accommodating. I witnessed one of the flight attendants deal with a difficult flyer with extreme calm and compassion. I was so annoyed with the passenger and so impressed by the flight attendant. His quick action de-escalated what could have been a major incident. He was awesome.

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

I was told in Florence my bag would go directly to Indianapolis. I had to wait to get it. Then security in EWR was slow so I missed my flight as United would not allow me on the plane even though it was still on the tarmac and the door to the tunnel was open. I blame both Lufthansa and United for refusing to allow me on board a plane that was clearly still on the tarmac. Behind me two grandparents and their ten year old grandson were on same flight from Munich to EWR. They were refused to board the United flight. So we had to sit for 12 hours in airport until next flight. No compensation has been offered either by Lufthansa or United.

Flight was delayed and luggage was delivered day after arrival. In Bilbao they told me day after would be delivered faster if I went to Bilbao to get my own bags so I did. Wasted my morning.

Seating was average for a first class seat. It very modern. I expected better.

very small seats screen did not work . I could not watch anything for 9 hours

The food that was served was superb!!! Awesome snacks!!! Frequent drink service!!! To me, this was shocking. I took a British Airways flight from Denver to London for the first leg of my trip and the food was horrendous. Thank you for keeping us fed and satiated on such a long flight!!!!

The seating arrangement by having privacy screens would have been more appealing. If you sit in the business class, you pay for extra comfort and privacy. Other than that, the service was excellent and the staff very professional.

The plane was late (as was my flight out from Birmingham the day before)

Everything about the flight check-in was smooth no line the plane is clean and bathroom

Excellent everywhere but Philly, the most rotten airport in the world.

Check in was not the greatest as had to talk to an agent to clarify things and then he transferred us to another agent who had difficulty processing my credit card as there was a system glitch and not a card error.

I was put into business class. Wow! My flight attendant was great! The food amazing’

Not so good with their baggage handling as they damaged one of my check in luggage

All went well on the flight, not happy of course with having to pay for a seat and in hold luggage of £50

We never made it onto this flight due to BA's lackluster organisation.

The air hostess were good, cheerful, but I didn't like the boarding. My son and I initially bought our flight tickets, making sure it included 1 luggage and a carry on. Tickets were purchased for British airlines, but we were merged with American Airlines. At checking in our languages, we were told, we don't have luggage prepaid so we had to pay extra $125 each and almost £60 on our way back. I think that's unfair.

Economy seats are so small and compacted so close together that comfort is negatively affected, especially on long flights. However that is due to aircraft design, not anything the airline can do about it.

3/4 bags delayed and 1/4 damaged at the other end. Flight was freezing

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