$262 Find Cheap Flights from Portland to the United Kingdom - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
London
London1 stop$755
Edinburgh
Edinburgh1 stop$637
Manchester
Manchester1 stop$640
Birmingham
Birmingham1 stop$890
Belfast
Belfast1 stop$873
Inverness
Inverness1 stop$884
Bristol
Bristol1 stop$1,034
Aberdeen
Aberdeen1 stop$856
Leeds
Leeds1 stop$956
London
London1 stop$755
Edinburgh
Edinburgh1 stop$637
Manchester
Manchester1 stop$640
Birmingham
Birmingham1 stop$890
Belfast
Belfast1 stop$873
Inverness
Inverness1 stop$884
Bristol
Bristol1 stop$1,034
Aberdeen
Aberdeen1 stop$856
Leeds
Leeds1 stop$956
Booking Insights

Price, demand and travel trends for Portland to the United Kingdom flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Portland to the United Kingdom cheaper or more expensive than last year?

Fares from Portland to the United Kingdom are running about 15% higher than they were around this time last year, averaging $959 round-trip.

What are the cheapest fares from Portland to the United Kingdom right now?

Here are the cheapest round-trip fares from Portland to the United Kingdom on KAYAK in the last week:

• Edinburgh Turnhouse (EDI) from $637
• Manchester (MAN) from $640
• London Heathrow (LHR) from $753
• Belfast City (BHD) from $873
• Inverness (INV) from $884

What’s the cheapest month to fly from Portland to the United Kingdom?

January is the cheapest time of year to fly, with average fares of $733. Prices are highest in July, when average flight costs increase to around $1,298.

When is the best time to book flights from Portland to the United Kingdom?

Booking last-minute, within 2 weeks of departure, usually offers the lowest fares from Portland to the United Kingdom. It runs around -5% cheaper than the route's average fare over the last 12 months.

Which airport in the United Kingdom is the cheapest to fly to from Portland?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into the United Kingdom are:

• London Gatwick (LGW) (avg. price $844)
• Inverness (INV) (avg. price $888)
• Glasgow Intl (GLA) (avg. price $926)

What’s the cheapest day to fly from Portland to the United Kingdom?

Thursday tends to be the cheapest day to fly from Portland to the United Kingdom, while Friday is the most expensive. Fares run about 20% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Portland to the United Kingdom?

Data from the past 12 months shows it's cheapest to fly to the United Kingdom during the afternoon with average prices of $936. The night is the most expensive time to fly, with average prices of $1,129.

Key details for Portland to the United Kingdom flights

Low season

January

Cheapest flight

$262
Beat the crowds with an average 41% drop in travelers.
The most popular month to fly with an average 35% increase in travelers.
One-way flight from Portland to Manchester

Your Portland to the United Kingdom flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Portland to the United Kingdom?

    Yes. Fares from Portland to the United Kingdom are low right now. As a rule of thumb, a round-trip under $784 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Portland to the United Kingdom?

    Over the past 12 months, round-trip fares from Portland to the United Kingdom have ranged from $784 to $1,294.

  • What are the main airports serving the United Kingdom?

    The United Kingdom has 63 airports. The three busiest are London Heathrow (LHR) (66% of arrivals), Edinburgh Turnhouse (EDI) (10%) and Manchester (MAN) (7%).

  • What airlines fly nonstop from Portland to the United Kingdom?

    Based on the flight schedule for the next 3 months, just one airline regularly flies nonstop from Portland to the United Kingdom: British Airways.

  • Where in the United Kingdom can I fly nonstop from Portland?

    Based on the flight schedule for the next 3 months, you can only fly nonstop from Portland to London.

  • Is it cheaper to fly with a layover from Portland to the United Kingdom?

    Yes. Nonstop flights from Portland to the United Kingdom average $1,063 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Atlanta Hartsfield-Jackson (ATL) (avg. price $591)
    • Reykjavik Keflavik Intl (KEF) (avg. price $824)
    • Denver Intl (DEN) (avg. price $905)

  • How long is a flight from Portland to the United Kingdom?

    Flights from Portland to the United Kingdom take 9h 35m on average.

  • Which cabin classes are available on flights from Portland to the United Kingdom?

    On flights from Portland to the United Kingdom you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in the United Kingdom?

    KAYAK travelers' favorite landmarks in the United Kingdom include:

    • Hyde Park
    • Buckingham Palace

  • What are the earliest and latest flights from Portland to the United Kingdom?

    The earliest nonstop flight from Portland to the United Kingdom departs at 5:45 pm and the latest departs at 6:45 pm. Nonstop flights take about 9h 35m.

Your guide to booking Portland to the United Kingdom flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for January when flights are typically cheapest and avoid July when prices are at their highest.
  • Flying on Thursday is usually the cheapest. Flights on Friday cost about 20% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, London Gatwick (LGW) is the cheapest airport to fly into from Portland. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in London, which is the most popular destination in the United Kingdom. From there, it's easy to continue on to other popular destinations such as Edinburgh, Glasgow and Manchester.
  • If you want the shortest trip, choose the Portland to the United Kingdom nonstop route. If you'd rather save money, the route via Atlanta Hartsfield-Jackson (ATL) is usually the cheapest.

Reviews of the top 5 airlines serving from Portland to the United Kingdom

 
Need help choosing which airline to fly with from Portland to the United Kingdom? 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.
7.8
DeltaOverall score based on 8697 reviews
7.8Comfort
8.1Boarding
7.2Food
8.5Crew
7.8Entertainment
Airline reviews

Very crowded and the economy seats were the smallest and with the least legroom I have ever experienced. Cabin staff were excellent although the food service was chaotic as they were being each person their food individually instead of from the wagon.

8.0 ExcellentGary, Oct 2026
Read more Delta reviews

Very crowded and the economy seats were the smallest and with the least legroom I have ever experienced. Cabin staff were excellent although the food service was chaotic as they were being each person their food individually instead of from the wagon.

We got stuck on the tarmac taxiing after landing early so we didn’t get off the plane until an hour later than we thought we would

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

The flights were on time- Great service Would have liked more options for food choices.

The brakes on the A220 are sensitive and uncomfortably grabby

The flight itself was ok but delayed take off meant that service was also delayed once in the air and it was a long time before the lights in the cabin were turned off. The food was pretty poor, which was disappointing for Virgin. Particularly breakfast which was a dry bagel with a pot of cream cheese. Economy sears were not comfortable despite us handing 3 seats between the two of us, I was unable to get comfortable and sleep. The entertainment was brilliant with a great selection and a very welcome addition was free high speed internet access for flying club members meaning I could stream video whilst in the air.

Food was okay. Seats were a bit cramped. In flight entertainment headphone socket didn't work on my seat. Wifi was great, so I was able to stream on my iPad

Selection of movies didn't include recent box office hits. Food was average not great. English sparkling wine is not drinkable. Otherwise, everything was great.

Check in at the desk was very slow pus Security, although not Virgin issue at JFK was a nightmare. 50 minuet wait no time to explore airport and get last minuet gifts. total wait 1.5hours

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

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The 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.

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.

My overall experience with British Airways was good. The cabin crew were friendly and helpful, and the flight was comfortable. The food was average and could be improved, but overall, I had a pleasant experience.

Luggage took too long go get off plane in Knoxville. Was almost 45 minutes after the flight landed.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

As smooth as you can expect. Some issues with boarding because the previous plane took forever to deplane but overall, a good experience.

DFW-LHR Toilets not kept clean Too cramped. Aisles so narrow crew were constantly banging into people on the aisle seats. Even then, the carts used are reduced width. Other than that it was a decent flight on both legs

Excellent customer service at check in at Austin flight to DFW and excellent customer service from Karren in terminal B at DFW.

The flight itself was fine, but between the man in front of me putting his chair back, and the gentleman next to me who took up 50% of my seat, my back and neck are destroyed from the flight. I’m hoping for a better outcome flying back.

I love the Kayak has keep on updating me about flight status as it was delayed for 30mins. as well notifications to book seat and if any change on booking. Tickets were also cheap compared to British Airways online website. No hidden charges or terms n conditions. Keep it up!!!

I sat in row 38 seat D. The headphone jack was nearly broken. The charging port was completely broken. My under seat space was compromised by a little metal box not seen under all seats so there was less room for my bag (which ended up having to go under the empty middle seat). These things could have been better. One of the flight attendants walked by me while my eyes were closed but I was awake waiting for breakfast and didn’t try to wake me for meal- and then when I asked about it didn’t offer to give me a pack I loved the other flight attendant - he was very kind funny witty and made extra efforts my comfort Overall everyone was polite, flight was smooth Off boarding was a ridiculously long process and should have been avoided if possible

Only coffee, tea, and water were complimentary. Seat did not recline.

EVERYTHING was charged for. Continuous Iceland advertising; it was off putting.

Overall professional and reliable; only complaint was the lack of complimentary food or beverages on the flight. I’m not accepting an upcharge on things one can reasonably expect.

Movies were old and third rate. Very poor on a seven hour flight. Food was OK but not business class caliber

Although the flight from JFK to Keflavik is not inexpensive, Iceland Air offers nothing but water, no soft drinks, to passengers without a charge. The seats are uncomfortable, there is no leg room, and there was no available internet to purchase.

Was hard to sleep, but other then that everything was good.

We got to the runway and had to go back to terminal to have plane worked on, which is fine, but the 40 minute connecting flight was already gone because of this delay and had to wait 5 hours to get on a different flight and only got a meal voucher which I didn’t see the email until after I had already ordered and paid for food. I feel I should be compensated.

Hard to figure out how to put back the seat, how to get the entertainment, how to upload passport docs. Also, a warning in the airport that food was all for purchase would have been helpful.

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

Screen didn't work, and neither did the button to tilt the seat even though the seat was comfortable

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

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

Good crew and boarding process. Horrible food and one of the most uncomfortable aircraft seats I have ever sat in. The cabin temperature was warm which made it hard for my family to sleep.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

Flight delayed and we were forced to check our carryon bags which was huge inconvenience.

First leg delay, rescheduled second leg without our approval, cancelled rescheduled second leg, rescheduled cancelled leg to three days later...

We were seated in the rear of the plane. Buses arrived to take us to the terminal but there weren’t enough so we waited an hour to leave the plane.

Every flight was late in arrival, last was late in departure and late in arrival, then lost our luggage!

They canceled the flight and would not rebook us within several days

Better food and more space in the seats. Also when doing the web check in both times I was going in to your site the minute you open it and there is not really many seats to choose only to buy!!!

More options for your flight from Portland to the United Kingdom

Complete your trip to the United Kingdom with a hotel stay or car rental