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Cheap flights from the United Kingdom to Portland, Maine from £418

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 22/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
20 Feb — 27 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap 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 21 January 2026.

Mon 26/117:50
LHR
-
PWM
2 stops33h 37m
Virgin Atlantic
Mon 2/205:30
PWM
-
LHR
2 stops43h 50m
Virgin Atlantic
Deal found 19/1£519
Tue 17/310:45
LHR
-
PWM
1 stop16h 37m
KLM
Mon 23/316:48
PWM
-
LHR
1 stop11h 57m
KLM
Deal found 18/1£529
Tue 17/310:00
LHR
-
PWM
2 stops17h 59m
Delta
Mon 23/306:25
PWM
-
LHR
1 stop9h 45m
Delta
Deal found 18/1£535
Mon 26/110:15
LHR
-
PWM
1 stop17h 39m
British Airways
Mon 2/212:40
PWM
-
LHR
1 stop14h 10m
British Airways
Deal found 19/1£544
Mon 26/110:00
LHR
-
PWM
2 stops19h 20m
Delta
Mon 2/214:35
PWM
-
LHR
2 stops18h 10m
Delta
Deal found 19/1£546
Mon 26/115:50
LHR
-
PWM
1 stop35h 37m
KLM
Mon 2/206:17
PWM
-
LHR
1 stop20h 48m
KLM
Deal found 19/1£548
Sat 31/109:40
LHR
-
PWM
2 stops17h 47m
Virgin Atlantic
Tue 3/205:30
PWM
-
LHR
2 stops20h 25m
Virgin Atlantic
Deal found 19/1£578
Fri 13/206:30
LHR
-
PWM
2 stops21h 36m
Delta
Sun 15/214:35
PWM
-
LHR
1 stop14h 40m
Delta
Deal found 18/1£595
Thu 5/212:05
LHR
-
PWM
2 stops16h 25m
United Airlines
Mon 9/206:00
PWM
-
LHR
1 stop10h 20m
United Airlines
Deal found 18/1£603
Wed 15/405:55
MAN
-
PWM
2 stops23h 51m
Delta
Mon 20/414:51
PWM
-
MAN
1 stop12h 24m
Delta
Deal found 19/1£639
Thu 7/512:45
MAN
-
PWM
2 stops40h 14m
Scandinavian Airlines
Mon 11/514:35
PWM
-
MAN
2 stops22h 55m
Scandinavian Airlines
Deal found 18/1£642
Thu 5/313:30
MAN
-
PWM
1 stop14h 36m
Delta
Thu 12/306:25
PWM
-
MAN
2 stops23h 45m
Delta
Deal found 19/1£654

Find 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 21 January 2026.

Round-trip from

£529

One-way from

£418

Popular in

December

Cheapest in

October

Average price

£569
KLM
  • KLM
  • 17/3-23/3
  • 2 total stops
  • 28h 34m total
  • United Kingdom to Portland
Search Deals
22/6
  • 22/6
  • 2 total stops
  • 43h 17m total
  • United Kingdom to Portland
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£10 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 21 January 2026.
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

Tue 17/3

10:45-23:22

1 stop16h 37m

Portland

Mon 23/3

16:48-08:45

1 stop11h 57m

£529

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 17/3

08:40-23:22

2 stops18h 42m

Portland

Mon 23/3

16:48-11:40

2 stops14h 52m

£535

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 31/1

09:40-22:27

2 stops17h 47m

Portland

Tue 3/2

05:30-06:55

2 stops20h 25m

£578

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 13/2

06:30-23:06

2 stops21h 36m

Portland

Sun 15/2

14:35-10:15

1 stop14h 40m

£595

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 5/2

12:05-23:30

2 stops16h 25m

Portland

Mon 9/2

06:00-21:20

1 stop10h 20m

£603

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Wed 15/4

10:55-23:22

2 stops17h 27m

Portland

Mon 20/4

19:23-13:10

2 stops12h 47m

£639

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Wed 15/4

05:55-00:46

2 stops23h 51m

Portland

Mon 20/4

14:51-08:15

1 stop12h 24m

£639

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 7/5

12:45-23:59

2 stops40h 14m

Portland

Mon 11/5

14:35-18:30

2 stops22h 55m

£642

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 5/3

13:30-23:06

1 stop14h 36m

Portland

Thu 12/3

06:25-10:10

2 stops23h 45m

£654

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 7/5

05:55-21:19

2 stops20h 24m

Portland

Mon 11/5

19:10-10:25

2 stops34h 15m

£719

Flights are sorted by cheapest return flights first.

Deals found on 19/1

Showing 1-10 of 27 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 month to book a flight from United Kingdom to Portland, Maine?

Currently, July is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of £139). Flying from United Kingdom to Portland, Maine in December is currently the most expensive (average of £369). 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.

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 21 January 2026.
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
1,442 reviews
Check prices

Comfort

7.6

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,442 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Comfort

7.6

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Finnair
7.6
Good
1,353 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Comfort

7.6

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Comfort

7.6

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
United Airlines
7.4
Good
9,190 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Comfort

7.6

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
JetBlue
7.2
Good
2,890 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Comfort

7.6

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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 KLM, Delta, and Virgin Atlantic fly from United Kingdom to Portland, Maine in about 16h 37m. The time it takes to get you to your destination can typically vary by up to 2h 05m. The distance between United Kingdom and Portland, Maine is about 3173 mi. This flight may include one or multiple stops.

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

    While some choose either Edinburgh Turnhouse - Portland or Manchester - 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, July is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of £139). Flying from United Kingdom to Portland, Maine in December is currently the most expensive (average of £369). 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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Heathrow to Portland flights
Darlington to Boston flights
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Manchester to Portland flights
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Barcelona-El Prat to Boston flights
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Madrid to Boston flights
Istanbul to Boston flights
Charles de Gaulle to Boston flights
Athens to Boston flights
Amsterdam to Boston flights
Norwich to Boston flights
Doncaster to Boston flights
Newcastle upon Tyne to Portland flights

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 21 January 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£143Average£526FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Virgin AtlanticCheapest£470Average£634FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£470Average£615FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£489Average£642FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
KLMCheapest£499Average£681FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£555Average£724FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£617Average£891FlexibilityNo 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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