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Cheap flights from the United Kingdom to Portland, Maine from £485

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
15 12月 — 22 12月1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Portland

Keep the following information in mind while searching for United Kingdom to Portland flight deals. Data was last updated 15 11月 2025.

Round-trip from

£566

One-way from

£485

Popular in

August

Cheapest in

October

Average price

£577
United Airlines
  • United Airlines
  • 4/2-18/2
  • 4 total stops
  • 32h 05m total
  • United Kingdom to Portland
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14/12
  • 14/12
  • 3 total stops
  • 31h 26m total
  • United Kingdom to Portland
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£46 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from United Kingdom to Portland

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Portland
Explore the most affordable flight options available from United Kingdom to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 11月 2025.

週五 12/1208:40LHR - PWM
2 stops18h 43mVirgin Atlantic
週五 19/1206:08PWM - LHR
1 stop20h 42mVirgin Atlantic
Deal found 12/11£814
週日 28/1208:55LHR - PWM
1 stop18h 48mVirgin Atlantic
週日 4/105:45PWM - LHR
2 stops57h 25mVirgin Atlantic
Deal found 13/11£986
週日 28/1212:35LHR - PWM
2 stops16h 10mFinnair
週日 4/112:21PWM - LHR
2 stops13h 39mFinnair
Deal found 13/11£1,041
週日 28/1208:55LHR - PWM
1 stop18h 48mDelta
週日 4/113:03PWM - LHR
1 stop12h 17mDelta
Deal found 13/11£1,047
週日 28/1214:45LHR - PWM
1 stop13h 06mMultiple Airlines
週日 4/117:20PWM - LHR
2 stops13h 40mMultiple Airlines
Deal found 13/11£1,076
週日 28/1220:45MAN - PWM
2 stops30h 58mMultiple Airlines
週日 4/112:57PWM - MAN
2 stops16h 13mMultiple Airlines
Deal found 13/11£1,230
週一 29/1212:30EDI - PWM
1 stop16h 29mUnited Airlines
週一 5/110:19PWM - EDI
2 stops16h 36mUnited Airlines
Deal found 14/11£1,290
週一 29/1206:45NCL - PWM
2 stops20h 58mMultiple Airlines
週一 5/105:30PWM - NCL
2 stops29h 30mMultiple Airlines
Deal found 14/11£1,294
週一 17/1118:00LHR - PWM
2 stops28h 48mAir Canada
週五 21/1119:47PWM - LHR
2 stops30h 23mAir Canada
Deal found 14/11£1,501
週一 17/1106:50LHR - PWM
2 stops17h 09mUnited Airlines
週五 21/1106:10PWM - LHR
1 stop10h 10mUnited Airlines
Deal found 14/11£1,503
週日 28/1213:00MAN - PWM
1 stop28h 20mDelta
週日 4/112:57PWM - MAN
2 stops22h 08mDelta
Deal found 13/11£1,527
週一 29/1209:40NCL - PWM
2 stops18h 15mAmerican Airlines
週一 5/112:37PWM - NCL
3 stops17h 48mAmerican Airlines
Deal found 14/11£2,305

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 11月 2025.
Use the filters below to find and compare flights from the United Kingdom to Portland that are best for you.

Fly from

United Kingdom

Fly to

Portland

Route

Depart

Return

Price

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

週三 4/2

11:10-23:30

2 stops17h 20m

Portland

週三 18/2

15:05-10:50

2 stops14h 45m

£566

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

週六 28/2

09:25-21:14

2 stops16h 49m

Portland

週三 4/3

15:05-07:55

1 stop11h 50m

£705

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

週六 28/2

09:00-22:59

2 stops18h 59m

Portland

週三 4/3

12:43-15:10

2 stops21h 27m

£730

ManchesterPortland

MAN - PWM

MANPWM

Manchester

週四 26/3

19:15-23:49

2 stops32h 34m

Portland

週一 30/3

06:30-19:45

2 stops32h 15m

£780

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

週五 12/12

08:40-22:23

2 stops18h 43m

Portland

週五 19/12

06:08-07:50

1 stop20h 42m

£814

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

週三 4/2

12:00-23:30

2 stops16h 30m

Portland

週三 18/2

06:00-06:30

3 stops19h 30m

£846

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

週六 28/3

06:50-18:13

2 stops15h 23m

Portland

週二 31/3

06:00-20:40

1 stop9h 40m

£859

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

週六 28/2

05:45-00:20

3 stops23h 35m

Portland

週三 4/3

14:35-15:25

3 stops19h 50m

£913

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

週四 26/3

08:25-19:36

2 stops15h 11m

Portland

週一 30/3

11:19-10:35

2 stops18h 16m

£957

Newcastle upon TynePortland

NCL - PWM

NCLPWM

Newcastle upon Tyne

週五 27/3

08:50-12:00

2 stops31h 10m

Portland

週二 31/3

16:11-16:15

2 stops19h 04m

£993

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 27 results
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2
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Best time to book a flight from United Kingdom to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from United Kingdom with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Portland

What is the cheapest month to book a flight from United Kingdom to Portland, Maine?

Currently, June is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of £111). Flying from United Kingdom to Portland, Maine in February is currently the most expensive (average of £322). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GB to PWM?

Find hourly flight availability from United Kingdom to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 11月 2025.

A simple way to save on the total cost of your ticket is to fly from United Kingdom to Portland, Maine in the evening. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight at midday.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated 15 11月 2025.
Get a feel of what it's like to fly with KLM, Finnair, andVirgin Atlantic from the United Kingdom to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,411 reviews
Check prices

Food

7.3

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Food

7.3

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Finnair
7.6
Good
1,334 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Food

7.3

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
673 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Food

7.3

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
9,017 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Food

7.3

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
JetBlue
7.2
Good
2,904 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Food

7.3

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Portland from United Kingdom?

    If you book a flight to Portland from United Kingdom, you will be flying to Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland.

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

    Airlines like United Airlines, American Airlines, and Scandinavian Airlines fly from United Kingdom to Portland, Maine in about 17h 20m. The time it takes to get you to your destination can typically vary by up to 15h 14m. The distance between United Kingdom and Portland, Maine is about 3173 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from United Kingdom to Portland, Maine one-way?

    To fly one-way, consider booking your trip with KLM, which is currently one of the cheapest options available, starting at £764. Austrian Airlines flights start at £1,012 while deals on Virgin Atlantic start at £1,019 one-way.

  • What are the most popular routes from United Kingdom to Portland, Maine?

    While some choose either Manchester - Portland or Edinburgh Turnhouse - Portland, London Heathrow - Portland is the most popular route from United Kingdom to Portland, Maine.

  • Can I find deals for flights from United Kingdom to Portland that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Portland.

  • Can I find deals for business class flights from United Kingdom to Portland?

    Yes. Cheapflights offers flight deals from United Kingdom to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to Portland, Maine?

    Currently, June is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of £111). Flying from United Kingdom to Portland, Maine in February is currently the most expensive (average of £322). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Bath

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Alternative routes for United Kingdom to Portland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from United Kingdom to Portland

Discover the top 8 airlines that operate flights from United Kingdom to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 11月 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£392Average£603FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£407Average£538FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Virgin AtlanticCheapest£481Average£666FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£481Average£628FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£510Average£722FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£523Average£940FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£567Average£818FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£631Average£911FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from United Kingdom to Portland?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from United Kingdom to Portland. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Portland?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from United Kingdom to Portland.

Can Cheapflights find flights from United Kingdom to Portland with no change fees?

Yes! Cheapflights helps users easily find flights from United Kingdom to Portland with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to Portland become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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