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Cheap flights from the United Kingdom to Portland, Maine from £344

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 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
26 May — 2 Jun1
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 26 April 2026.

Thu 28/511:55
LHR
-
PWM
1 stop30h 40m
JetBlue
Thu 4/606:00
PWM
-
LHR
1 stop9h 45m
JetBlue
Deal found 23/4£612
Thu 9/708:15
LHR
-
PWM
1 stop20h 59m
JetBlue
Thu 16/706:00
PWM
-
LHR
1 stop9h 45m
JetBlue
Deal found 21/4£647
Tue 2/608:15
LHR
-
PWM
1 stop20h 43m
JetBlue
Tue 9/606:00
PWM
-
LHR
1 stop9h 45m
JetBlue
Deal found 25/4£685
Fri 5/608:15
LHR
-
PWM
1 stop20h 43m
JetBlue
Fri 12/606:00
PWM
-
LHR
1 stop9h 45m
JetBlue
Deal found 21/4£695
Sun 28/608:15
LHR
-
PWM
1 stop21h 10m
JetBlue
Sun 5/706:00
PWM
-
LHR
1 stop22h 30m
JetBlue
Deal found 25/4£698
Fri 5/609:35
MAN
-
PWM
2 stops20h 08m
Scandinavian Airlines
Fri 12/606:30
PWM
-
MAN
2 stops45h 25m
Scandinavian Airlines
Deal found 21/4£703
Mon 18/508:15
LHR
-
PWM
1 stop19h 48m
JetBlue
Mon 25/506:00
PWM
-
LHR
1 stop22h 30m
JetBlue
Deal found 24/4£720
Mon 1/608:40
LHR
-
PWM
2 stops20h 18m
JetBlue
Mon 8/614:37
PWM
-
LHR
1 stop13h 53m
JetBlue
Deal found 22/4£731
Sun 21/619:50
LHR
-
PWM
2 stops45h 40m
Multiple Airlines
Fri 7/820:15
PWM
-
LHR
2 stops43h 45m
Multiple Airlines
Deal found 23/4£741
Tue 2/619:50
LHR
-
PWM
2 stops33h 53m
Scandinavian Airlines
Tue 9/606:30
PWM
-
LHR
2 stops28h 55m
Scandinavian Airlines
Deal found 25/4£754
Mon 1/611:15
LHR
-
PWM
1 stop16h 54m
Virgin Atlantic
Mon 8/618:57
PWM
-
LHR
1 stop13h 18m
Virgin Atlantic
Deal found 22/4£757
Tue 2/611:20
LHR
-
PWM
2 stops16h 49m
Virgin Atlantic
Tue 9/618:57
PWM
-
LHR
1 stop13h 18m
Virgin Atlantic
Deal found 25/4£760

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 26 April 2026.

Round-trip from

£612

One-way from

£344

Popular in

August

Cheapest in

October

Average price

£601
JetBlue
  • JetBlue
  • 28/5-4/6
  • 2 total stops
  • 40h 25m total
  • United Kingdom to Portland
Search Deals
JetBlue
  • JetBlue
  • 18/5
  • 1 total stop
  • 15h 53m total
  • United Kingdom to Portland
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£73 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 April 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 26 April 2026.
Use the filters below to find and compare flights from the United Kingdom to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 28/5

11:55-13:35

1 stop30h 40m

Portland

Thu 4/6

06:00-20:45

1 stop9h 45m

£612

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Fri 5/6

09:35-00:43

2 stops20h 08m

Portland

Fri 12/6

06:30-08:55

2 stops45h 25m

£703

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Wed 23/9

09:40-23:31

1 stop18h 51m

Portland

Sun 27/9

18:20-08:25

1 stop33h 05m

£770

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 28/5

08:40-23:09

2 stops19h 29m

Portland

Thu 4/6

06:25-06:20

1 stop18h 55m

£803

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 28/5

06:30-23:09

2 stops21h 39m

Portland

Thu 4/6

06:00-06:45

2 stops19h 45m

£803

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 9/7

08:40-00:59

2 stops21h 19m

Portland

Thu 16/7

14:53-06:45

1 stop10h 52m

£803

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 2/6

07:05-00:43

3 stops22h 38m

Portland

Tue 9/6

06:30-09:35

2 stops22h 05m

£815

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 5/6

07:05-00:43

3 stops22h 38m

Portland

Fri 12/6

06:30-09:35

2 stops22h 05m

£836

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 26/6

08:00-17:44

1 stop14h 44m

Portland

Sun 28/6

19:16-06:55

1 stop30h 39m

£840

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Sat 6/6

12:10-23:58

1 stop16h 48m

Portland

Sat 20/6

14:30-09:20

1 stop13h 50m

£840

Flights are sorted by cheapest return flights first.

Deals found on 25/4

Showing 1-10 of 47 resultsSorted by cheapest first
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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, October is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of £120). Flying from United Kingdom to Portland, Maine in January is currently the most expensive (average of £592). 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 26 April 2026.
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
1,508 reviews
Check prices

Overall

7.8

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,508 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Overall

7.8

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Finnair
7.7
Good
1,391 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Overall

7.8

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
United Airlines
7.4
Good
9,658 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Overall

7.8

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Virgin Atlantic
7.4
Good
688 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Overall

7.8

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
JetBlue
7.2
Good
2,960 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Overall

7.8

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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, Scandinavian Airlines, and United Airlines fly from United Kingdom to Portland, Maine in about 18h 51m. The time it takes to get you to your destination can typically vary by up to 11h 49m. The distance between United Kingdom and Portland, Maine is about 2973 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, October is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of £120). Flying from United Kingdom to Portland, Maine in January is currently the most expensive (average of £592). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from United Kingdom to Portland

Discover the top 3 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 26 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£539Average£736FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£561Average£712FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£569Average£632FlexibilityNo cancel feeOn-time75%
Search KLM 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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