LHR - PDX

£316 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 3/9. 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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Flights 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 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
British Airways Logo
15:40 - 17:35LHR-PDX
9h 55mdirect
British Airways Logo
19:25 - 13:00PDX-LHR
9h 35mdirect
£477British Airways
Find Deal
Mon, 1 Sep - Mon, 15 Sep
British Airways Logo
15:40 - 17:35LHR-PDX
9h 55mdirect
British Airways Logo
14:06 - 12:30PDX-LHR
14h 24m1 stop
£482British Airways
Find Deal
Mon, 15 Sep - Mon, 29 Sep
Finnair Logo
07:30 - 23:39LHR-PDX
24h 09m2 stops
Finnair Logo
08:30 - 16:05PDX-LHR
23h 35m1 stop
£506Finnair
Find Deal
Fri, 5 Sep - Thu, 18 Sep
Virgin Atlantic Logo
06:30 - 11:05LHR-PDX
12h 35m1 stop
Virgin Atlantic Logo
14:30 - 13:30PDX-LHR
15h 00m1 stop
£517Virgin Atlantic
Find Deal
Fri, 5 Sep - Thu, 18 Sep
Virgin Atlantic Logo
06:30 - 11:05LHR-PDX
12h 35m1 stop
Virgin Atlantic Logo
11:20 - 08:55PDX-LHR
13h 35m1 stop
£518Virgin Atlantic
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Fri, 21 Nov - Fri, 5 Dec
KLM Logo
06:30 - 11:25LHR-PDX
12h 55m1 stop
KLM Logo
13:37 - 11:00PDX-LHR
13h 23m1 stop
£546KLM
Find Deal
Wed, 24 Sep - Sun, 5 Oct
Finnair Logo
16:25 - 18:55LHR-PDX
34h 30m1 stop
Finnair Logo
19:25 - 13:00PDX-LHR
9h 35mdirect
£580Finnair
Find Deal
Mon, 23 Jun - Thu, 26 Mar
Icelandair Logo
21:25 - 17:55LHR-PDX
28h 30m1 stop
Icelandair Logo
15:45 - 10:55PDX-LHR
12h 10m1 stop
£607Icelandair
Find Deal
Mon, 23 Jun - Sat, 11 Apr
Icelandair Logo
21:25 - 17:55LHR-PDX
28h 30m1 stop
Icelandair Logo
15:45 - 11:55PDX-LHR
12h 10m1 stop
£621Icelandair
Find Deal
Sun, 22 Jun - Tue, 22 Jul
KLM Logo
06:30 - 11:00LHR-PDX
12h 30m1 stop
KLM Logo
15:15 - 14:15PDX-LHR
15h 00m1 stop
£642KLM
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
Useful Info

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.

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 £576 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is £885 and £878 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 £1,642, 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. 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
High seasonJuly
Cheapest flight£316
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (32% 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 £429 for a one-way ticket and £648 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?

    KLM, and Delta 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 direct flights from London Heathrow Airport to Portland on a daily basis.

  • Which is the best airline for flights from London to Portland, KLM or Finnair?

    The two airlines most popular with KAYAK users for flights from London to Portland are KLM and Finnair. With an average price for the route of £689 and an overall rating of 7.8, KLM is the most popular choice. Finnair is also a great choice for the route, with an average price of £589 and an overall rating of 7.6.

  • 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 £675 or less one-way and £546 or less round-trip.

Prefer to fly direct from London Heathrow Airport 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
See more direct flights

Top 5 airlines serving 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 1290 reviews
7.6Boarding
6.7Food
8.1Crew
7.4Comfort
6.9Entertainment
Airline reviews

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.

2.0 MediocreAnonymous, May 2025ORD - IND
Read more Finnair reviews

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.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

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,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

We’ve used VA before many times the experience is always been good they have lovely staff and the food is always delicious.

Everything about the flight was amazing from check in to boarding entertainment was okay food we didn’t try.

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

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.

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. If there is option to use another company, I suggest to other people use them.

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.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

You get what you pay for. In general I like the service and flight attendants.

Excellent! Outstanding customer service, the best service I have received. Food was served, dinner, snacks, beverages, crew was there to greet you. 10/10

Charging $300 to be able to pick a seat next to your wife was nothing less than extortion.

My carry-on bag was taken from me when I boarded. It was checked through to London at no charge. It took a big of shuffling, but I was glad not to need to mind it until baggage claim.

Great to have power available for every seat in Premium Economy. I do wish the WiFi was less expensive. It was 23-24 Euros for the flight for one device. And there were times it was unavailable.

I’m very mad because I paid an extra $105 to change seats to an exit row with more leg room. The app clearly showed a gap in between the seats in the row I changed my seat to and I paid for it. When I boarded the plane, it wasn’t an exit row seat and no more room than my original seat. I feel like I was ripped off $105.

The crew on AA international flights in my experience are generally lazy, rude, and inefficient. These guys did not disappoint.

I had a great experience , crew was great and enjoyed the entertainment options I will be booking my next International trip with them .

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

I wish they could put the pre-tsa check on the tickets or global entry.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Boarding was fairly chaotic. One of your employees clipped my ankle as he was passing with an empty wheelchair and not only did not apologize but stated something to the effect of “oh forGod’s sake.” There was plenty of room for him to pass. otherwise, everything was excellent.

Fantastic! Great seats! Friendly staff! Amazing selection of shows and movies! Smooth ride! I don’t know what more I could have asked for honestly. They made flying a breeze this time around.

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

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