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Cheap flights from the United Kingdom to Portland, Maine from £356

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
13 Mar — 20 Mar1
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 11 February 2026.

Wed 6/511:55
LHR
-
PWM
1 stop16h 41m
JetBlue
Sat 9/506:00
PWM
-
LHR
1 stop9h 45m
JetBlue
Deal found 10/2£520
Thu 7/511:55
LHR
-
PWM
1 stop16h 41m
JetBlue
Thu 14/506:00
PWM
-
LHR
1 stop9h 45m
JetBlue
Deal found 8/2£556
Thu 7/508:40
LHR
-
PWM
2 stops30h 38m
United Airlines
Thu 14/506:00
PWM
-
LHR
1 stop10h 35m
United Airlines
Deal found 8/2£601
Thu 3/906:55
LHR
-
PWM
2 stops19h 32m
United Airlines
Thu 10/914:45
PWM
-
LHR
1 stop11h 10m
United Airlines
Deal found 9/2£605
Thu 3/911:55
LHR
-
PWM
1 stop17h 02m
JetBlue
Thu 10/914:17
PWM
-
LHR
1 stop14h 13m
JetBlue
Deal found 9/2£621
Wed 1/411:55
LHR
-
PWM
1 stop17h 01m
JetBlue
Wed 8/406:00
PWM
-
LHR
1 stop9h 45m
JetBlue
Deal found 10/2£631
Thu 7/506:30
LHR
-
PWM
2 stops21h 48m
Virgin Atlantic
Thu 14/513:40
PWM
-
LHR
2 stops16h 40m
Virgin Atlantic
Deal found 8/2£650
Wed 1/408:15
LHR
-
PWM
1 stop20h 41m
Multiple Airlines
Wed 8/406:00
PWM
-
LHR
2 stops19h 30m
Multiple Airlines
Deal found 10/2£677
Wed 25/308:30
LHR
-
PWM
2 stops16h 41m
United Airlines
Wed 1/414:12
PWM
-
LHR
1 stop15h 28m
United Airlines
Deal found 8/2£684
Sat 6/611:55
LHR
-
PWM
1 stop30h 28m
JetBlue
Fri 4/906:00
PWM
-
LHR
1 stop22h 30m
JetBlue
Deal found 8/2£688
Mon 31/817:35
NCL
-
PWM
2 stops35h 24m
KLM
Thu 17/906:30
PWM
-
NCL
2 stops21h 15m
KLM
Deal found 8/2£698
Thu 7/505:55
MAN
-
PWM
2 stops17h 28m
United Airlines
Mon 11/505:30
PWM
-
MAN
2 stops30h 40m
United Airlines
Deal found 8/2£725

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 11 February 2026.

Round-trip from

£520

One-way from

£356

Popular in

August

Cheapest in

October

Average price

£535
JetBlue
  • JetBlue
  • 6/5-9/5
  • 2 total stops
  • 26h 26m total
  • United Kingdom to Portland
Search Deals
JetBlue
  • JetBlue
  • 3/6
  • 1 total stop
  • 16h 41m total
  • United Kingdom to Portland
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 11 February 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

Wed 6/5

11:55-23:36

1 stop16h 41m

Portland

Sat 9/5

06:00-20:45

1 stop9h 45m

£520

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 7/5

11:55-23:36

1 stop16h 41m

Portland

Thu 14/5

06:00-20:45

1 stop9h 45m

£556

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 7/5

08:40-10:18

2 stops30h 38m

Portland

Thu 14/5

06:00-21:35

1 stop10h 35m

£601

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 1/4

11:55-23:56

1 stop17h 01m

Portland

Wed 8/4

06:00-20:45

1 stop9h 45m

£631

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 7/5

06:30-23:18

2 stops21h 48m

Portland

Thu 14/5

13:40-11:20

2 stops16h 40m

£650

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 1/4

08:15-23:56

1 stop20h 41m

Portland

Wed 8/4

06:00-06:30

2 stops19h 30m

£677

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 25/3

08:30-21:11

2 stops16h 41m

Portland

Wed 1/4

15:22-10:40

2 stops14h 18m

£684

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 6/6

11:55-13:23

1 stop30h 28m

Portland

Fri 4/9

06:00-09:30

1 stop22h 30m

£688

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 7/5

05:55-18:23

2 stops17h 28m

Portland

Mon 11/5

05:30-17:10

2 stops30h 40m

£725

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Sat 28/3

13:30-23:22

1 stop13h 52m

Portland

Sat 4/4

05:23-09:40

2 stops23h 17m

£1,081

Flights are sorted by cheapest return flights first.

Deals found on 8/2

Showing 1-10 of 28 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, August is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of £89). Flying from United Kingdom to Portland, Maine in December is currently the most expensive (average of £363). 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 11 February 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
1,451 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Food

7.3

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
1,451 reviews
KLM
7.7
Good
1,451 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Food

7.3

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
1,360 reviews
KLM
7.7
Good
1,451 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Food

7.3

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
1,451 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Food

7.3

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
9,279 reviews
KLM
7.7
Good
1,451 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Food

7.3

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
2,895 reviews
KLM
7.7
Good
1,451 reviews
Check prices

Crew

8.4

Overall

7.7

Boarding

7.8

Entertainment

7.1

Comfort

7.6

Food

7.3

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 JetBlue, United Airlines, and Virgin Atlantic fly from United Kingdom to Portland, Maine in about 13h 52m. The time it takes to get you to your destination can typically vary by up to 3h 36m. The distance between United Kingdom and Portland, Maine is about 3061 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 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, August is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of £89). Flying from United Kingdom to Portland, Maine in December is currently the most expensive (average of £363). 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

Browse thousands of different options on Cheapflights for your next trip

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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 11 February 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£141Average£527FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Virgin AtlanticCheapest£463Average£624FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£481Average£632FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
KLMCheapest£491Average£688FlexibilityNo cancel feeOn-time75%
Search KLM flights
FinnairCheapest£530Average£641FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£546Average£723FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£607Average£877FlexibilityNo 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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