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Cheap flights from the United Kingdom to Portland, Maine from £304

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
18 Jul — 25 Jul1
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 13 July 2025.

Round-trip from

£357

One-way from

£304

Popular in

August

Cheapest in

September

Average price

£761
JetBlue
  • JetBlue
  • 9/8-16/8
  • 2 total stops
  • 26h 57m total
  • United Kingdom to Portland
Search Deals
8/9
  • 8/9
  • 2 total stops
  • 47h 46m total
  • United Kingdom to Portland
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£43 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 July 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 13 July 2025.

Sat 9/811:55LHR - PWM
1 stop17h 22mJetBlue
Sat 16/806:10PWM - LHR
1 stop9h 35mJetBlue
Deal found 11/7£357
Tue 26/811:30EDI - PWM
1 stop17h 47mJetBlue
Tue 2/914:19PWM - EDI
1 stop13h 56mJetBlue
Deal found 12/7£443
Wed 1/1013:10LHR - PWM
1 stop14h 33mMultiple Airlines
Wed 15/1012:15PWM - LHR
1 stop13h 25mMultiple Airlines
Deal found 12/7£509
Wed 1/1013:05LHR - PWM
1 stop16h 06mVirgin Atlantic
Wed 15/1005:40PWM - LHR
2 stops19h 45mVirgin Atlantic
Deal found 12/7£524
Thu 11/908:40LHR - PWM
2 stops20h 31mDelta
Mon 15/917:00PWM - LHR
2 stops15h 30mDelta
Deal found 11/7£543
Wed 1/1014:40MAN - PWM
1 stop12h 21mMultiple Airlines
Sat 18/1014:17PWM - MAN
1 stop11h 33mMultiple Airlines
Deal found 13/7£596
Wed 1/1014:15MAN - PWM
2 stops38h 56mVirgin Atlantic
Sat 18/1005:40PWM - MAN
2 stops44h 55mVirgin Atlantic
Deal found 13/7£610
Wed 27/811:00MAN - PWM
2 stops18h 17mTAP AIR PORTUGAL
Wed 3/914:17PWM - MAN
2 stops21h 48mTAP AIR PORTUGAL
Deal found 13/7£611
Mon 25/808:30LHR - PWM
2 stops15h 59mUnited Airlines
Mon 1/919:26PWM - LHR
1 stop30h 29mUnited Airlines
Deal found 10/7£625
Thu 2/1012:35MAN - PWM
2 stops28h 20mDelta
Mon 6/1014:35PWM - MAN
2 stops17h 50mDelta
Deal found 13/7£636
Mon 25/809:00EDI - PWM
1 stop20h 03mDelta
Mon 1/914:36PWM - EDI
2 stops20h 49mDelta
Deal found 10/7£660
Tue 26/806:05MAN - PWM
2 stops20h 54mUnited Airlines
Tue 2/906:14PWM - MAN
2 stops21h 11mUnited Airlines
Deal found 12/7£781

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 13 July 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

Sat 9/8

11:55-00:17

1 stop17h 22m

Portland

Sat 16/8

06:10-20:45

1 stop9h 35m

£357

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Tue 26/8

11:30-00:17

1 stop17h 47m

Portland

Tue 2/9

14:19-09:15

1 stop13h 56m

£443

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 1/10

13:10-22:43

1 stop14h 33m

Portland

Wed 15/10

12:15-06:40

1 stop13h 25m

£509

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 1/10

13:05-00:11

1 stop16h 06m

Portland

Wed 15/10

05:40-06:25

2 stops19h 45m

£524

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 11/9

08:40-00:11

2 stops20h 31m

Portland

Mon 15/9

17:00-13:30

2 stops15h 30m

£543

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Wed 1/10

14:40-22:01

1 stop12h 21m

Portland

Sat 18/10

14:17-06:50

1 stop11h 33m

£596

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Wed 1/10

14:15-00:11

2 stops38h 56m

Portland

Sat 18/10

05:40-07:35

2 stops44h 55m

£610

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Wed 27/8

11:00-00:17

2 stops18h 17m

Portland

Wed 3/9

14:17-17:05

2 stops21h 48m

£611

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 25/8

08:30-19:29

2 stops15h 59m

Portland

Mon 1/9

19:26-06:55

1 stop30h 29m

£625

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 2/10

12:35-11:55

2 stops28h 20m

Portland

Mon 6/10

14:35-13:25

2 stops17h 50m

£636

Flights are sorted by cheapest return flights first.

Deals found on 12/7

Showing 1-10 of 28 results
1
2
3

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 13 July 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 13 July 2025.
Get a feel of what it's like to fly with Delta, KLM, 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.
Delta
8.0
Very Good
7,956 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,956 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,856 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
JetBlue
7.3
Good
2,907 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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.

  • 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 £641. Scandinavian Airlines flights start at £839 while deals on Turkish Airlines start at £937 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.

See more FAQs

Travelling to a place near the United Kingdom?

Book flights to the United Kingdom 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 13 July 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£382Average£588FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£397Average£600FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Virgin AtlanticCheapest£467Average£696FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£469Average£591FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£480Average£767FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£510Average£916FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£553Average£824FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£615Average£889FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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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