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Cheap flights from the United Kingdom to Portland, Maine from £443

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
2 Sep — 9 Sep1
1 adult

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 28 August 2025.

Round-trip from

£443

Popular in

August

Cheapest in

February

Average price

£828
JetBlue
  • JetBlue
  • 23/9-30/9
  • 2 total stops
  • 51h 58m total
  • United Kingdom to Portland
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from United Kingdom to Portland

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 28 August 2025.

Tue 23/911:30EDI - PWM
1 stop30h 52mJetBlue
Tue 30/907:09PWM - EDI
1 stop21h 06mJetBlue
Deal found 26/8£443
Wed 24/909:55LHR - PWM
2 stops19h 39mDelta
Wed 1/1014:41PWM - LHR
1 stop11h 34mDelta
Deal found 27/8£502
Sat 11/1008:15LHR - PWM
1 stop19h 49mJetBlue
Sat 18/1007:09PWM - LHR
1 stop21h 21mJetBlue
Deal found 27/8£505
Wed 24/913:20LHR - PWM
1 stop11h 51mMultiple Airlines
Wed 1/1017:20PWM - LHR
1 stop12h 45mMultiple Airlines
Deal found 27/8£510
Wed 24/909:40LHR - PWM
2 stops19h 31mVirgin Atlantic
Wed 1/1013:35PWM - LHR
2 stops15h 25mVirgin Atlantic
Deal found 27/8£515
Thu 9/1009:55LHR - PWM
2 stops19h 10mDelta
Sun 12/1014:38PWM - LHR
1 stop10h 47mDelta
Deal found 27/8£517
Fri 10/1011:55LHR - PWM
1 stop30h 27mJetBlue
Fri 17/1014:17PWM - LHR
1 stop14h 13mJetBlue
Deal found 26/8£557
Tue 23/913:20EDI - PWM
2 stops16h 14mDelta
Tue 30/914:41PWM - EDI
2 stops15h 04mDelta
Deal found 26/8£564
Thu 2/1012:35MAN - PWM
1 stop16h 36mVirgin Atlantic
Mon 6/1006:00PWM - MAN
1 stop21h 35mVirgin Atlantic
Deal found 28/8£578
Fri 12/912:35MAN - PWM
1 stop16h 36mVirgin Atlantic
Fri 19/906:00PWM - MAN
1 stop21h 35mVirgin Atlantic
Deal found 27/8£588
Sat 15/1106:00NCL - PWM
2 stops21h 19mKLM
Tue 25/1114:30PWM - NCL
2 stops13h 15mKLM
Deal found 26/8£593
Fri 12/912:35MAN - PWM
1 stop16h 36mDelta
Mon 22/914:41PWM - MAN
2 stops17h 44mDelta
Deal found 27/8£593

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 28 August 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

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Tue 23/9

11:30-13:22

1 stop30h 52m

Portland

Tue 30/9

07:09-09:15

1 stop21h 06m

£443

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 24/9

09:55-00:34

2 stops19h 39m

Portland

Wed 1/10

14:41-07:15

1 stop11h 34m

£502

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 11/10

08:15-23:04

1 stop19h 49m

Portland

Sat 18/10

07:09-09:30

1 stop21h 21m

£505

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 24/9

13:20-20:11

1 stop11h 51m

Portland

Wed 1/10

17:20-11:05

1 stop12h 45m

£510

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 24/9

09:40-00:11

2 stops19h 31m

Portland

Wed 1/10

13:35-10:00

2 stops15h 25m

£515

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 9/10

09:55-00:05

2 stops19h 10m

Portland

Sun 12/10

14:38-06:25

1 stop10h 47m

£517

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 10/10

11:55-13:22

1 stop30h 27m

Portland

Fri 17/10

14:17-09:30

1 stop14h 13m

£557

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Tue 23/9

13:20-00:34

2 stops16h 14m

Portland

Tue 30/9

14:41-10:45

2 stops15h 04m

£564

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 2/10

12:35-00:11

1 stop16h 36m

Portland

Mon 6/10

06:00-08:35

1 stop21h 35m

£578

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Fri 12/9

12:35-00:11

1 stop16h 36m

Portland

Fri 19/9

06:00-08:35

1 stop21h 35m

£588

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 39 results
1
2
3
4

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 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 28 August 2025.

When flying from United Kingdom to Portland, Maine, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 28 August 2025.
Get a feel of what it's like to fly with KLM, Finnair, andUnited Airlines 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
7.8
Good
1,382 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,382 reviews
KLM
7.8
Good
1,382 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Finnair
7.6
Good
1,321 reviews
KLM
7.8
Good
1,382 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
United Airlines
7.4
Good
8,944 reviews
KLM
7.8
Good
1,382 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Virgin Atlantic
7.4
Good
661 reviews
KLM
7.8
Good
1,382 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
JetBlue
7.2
Good
2,920 reviews
KLM
7.8
Good
1,382 reviews
Check prices

Entertainment

7.1

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 JetBlue, Delta, and Virgin Atlantic fly from United Kingdom to Portland, Maine in about 19h 31m. The time it takes to get you to your destination can typically vary by up to 11h 21m. 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 JetBlue, which is currently one of the cheapest options available, starting at £469. Scandinavian Airlines flights start at £608 while deals on Delta start at £1,198 one-way.

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

    While some choose either London Heathrow - Portland or Edinburgh Turnhouse - Portland, Manchester - 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.

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

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Top 7 airlines flying from United Kingdom to Portland

Discover the top 7 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 28 August 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£383Average£589FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£397Average£579FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Virgin AtlanticCheapest£468Average£698FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£470Average£580FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£481Average£755FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£554Average£813FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£616Average£890FlexibilityNo 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.

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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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