London

$588+ Cheap flights from Portland (PWM) to London (LON)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
nov. 26 — dic. 31
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Cheap flight deals from Portland to London

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated noviembre 21, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

February

Average price

$712

Round-trip from

$588
(JetBlue)
Provider with most accurate pricing for Portland-London (LON) flight deals.
Provider most trusted by Cheapflights users for Portland-London (LON) flights.
High demand for flights, 31% potential price rise
Best time to find cheap flights, 25% potential price drop
Average for round-trip flights in November 2024
From Portland to London (LON)

Find flight deals from Portland to London

Cheapest flights from Portland to London
Explore the most affordable flight options available from Portland to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 21, 2024.

This Gurufare deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/32:59 pmPWM - LHR
2 stops25h 41mScandinavian Airlines
lun. 12/97:30 pmLHR - PWM
2 stops33h 29mScandinavian Airlines
Deal found 11/20$664
This CheapOair deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/46:00 amPWM - LHR
2 stops20h 10mAir Canada
mié. 12/113:00 pmLHR - PWM
2 stops36h 50mAir Canada
Deal found 11/20$898
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/46:00 amPWM - LHR
1 stop9h 35mUnited Airlines
mié. 12/117:30 amLHR - PWM
2 stops16h 16mUnited Airlines
Deal found 11/20$905
This KLM deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/412:51 pmPWM - LHR
1 stop12h 59mKLM
mié. 12/112:30 pmLHR - PWM
1 stop14h 00mKLM
Deal found 11/20$921
This Air Canada deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/45:14 pmPWM - LHR
2 stops13h 36mMultiple Airlines
mié. 12/119:00 amLHR - PWM
3 stops18h 50mMultiple Airlines
Deal found 11/20$1,065
This Mytrip deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/412:20 pmPWM - LGW
2 stops16h 25mMultiple Airlines
mié. 12/1111:40 amLGW - PWM
2 stops16h 18mMultiple Airlines
Deal found 11/20$1,127
This Virgin Atlantic deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/186:05 amPWM - LHR
1 stop19h 15mVirgin Atlantic
mié. 12/256:30 amLHR - PWM
2 stops22h 40mVirgin Atlantic
Deal found 11/20$1,134
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/182:55 pmPWM - LHR
2 stops17h 55mDelta
mié. 12/256:30 amLHR - PWM
2 stops22h 40mDelta
Deal found 11/20$1,156
This Ovago deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/311:24 amPWM - LHR
1 stop13h 56mAustrian Airlines
lun. 12/97:25 pmLHR - PWM
2 stops28h 21mAustrian Airlines
Deal found 11/20$1,460
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/298:00 amPWM - LHR
1 stop20h 20mAmerican Airlines
sáb. 12/79:50 amLHR - PWM
2 stops17h 56mAmerican Airlines
Deal found 11/20$1,530
This Delta deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/262:55 pmPWM - LCY
2 stops13h 35mDelta
mar. 12/39:20 amLCY - PWM
2 stops19h 27mDelta
Deal found 11/21$2,315

Find flights from Portland to London within your budget

Customize your flight search to find flights from Portland to London 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 2,629,791 searches. Data last updated noviembre 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandLondon

PWM - LHR

PWMLHR

Portland

dom. 5/4

5:50 pm-9:30 am

1 stop10h 40m

London Heathrow

sáb. 5/17

8:25 am-4:55 pm

1 stop13h 30m

$588

PortlandLondon

PWM - LHR

PWMLHR

Portland

mar. 12/3

2:59 pm-9:40 pm

2 stops25h 41m

London Heathrow

lun. 12/9

7:30 pm-11:59 pm

2 stops33h 29m

$664

PortlandLondon

PWM - LHR

PWMLHR

Portland

dom. 4/20

12:47 pm-5:55 am

1 stop12h 08m

London Heathrow

mar. 4/29

1:45 pm-11:17 pm

2 stops14h 32m

$789

PortlandLondon

PWM - LHR

PWMLHR

Portland

sáb. 4/19

3:15 pm-8:00 pm

1 stop23h 45m

London Heathrow

mar. 4/29

11:30 am-11:38 pm

2 stops17h 08m

$803

PortlandLondon

PWM - LHR

PWMLHR

Portland

jue. 1/9

6:00 am-7:10 am

2 stops20h 10m

London Heathrow

lun. 1/20

7:25 pm-10:30 pm

2 stops32h 05m

$839

PortlandLondon

PWM - LHR

PWMLHR

Portland

sáb. 5/3

7:15 pm-9:00 pm

2 stops44h 45m

London Heathrow

sáb. 5/17

9:30 am-11:17 pm

2 stops18h 47m

$883

PortlandLondon

PWM - LHR

PWMLHR

Portland

jue. 1/9

3:02 pm-11:10 am

1 stop15h 08m

London Heathrow

lun. 1/20

4:35 pm-11:57 pm

1 stop12h 22m

$904

PortlandLondon

PWM - LCY

PWMLCY

Portland

jue. 1/9

3:02 pm-9:30 am

2 stops13h 28m

London City

lun. 1/20

10:00 am-11:57 pm

2 stops18h 57m

$944

PortlandLondon

PWM - LGW

PWMLGW

Portland

sáb. 5/3

5:50 pm-1:00 pm

2 stops38h 10m

London Gatwick

sáb. 5/17

2:00 pm-4:55 pm

2 stops55h 55m

$945

PortlandLondon

PWM - LHR

PWMLHR

Portland

jue. 1/30

4:00 pm-6:35 am

1 stop9h 35m

London Heathrow

dom. 2/2

9:50 am-10:34 pm

2 stops17h 44m

$1,022

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 14 results
1
2

Compare providers for flights from Portland to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to London in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland, Maine-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-London flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to London

Have a flexible travel schedule? Discover the best time to fly to London from Portland with our price prediction graph.
Estimated round-trip 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.

Travel insights for flights from Portland to London

Get recent, data-driven insights about flights from Portland to London including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portland, Maine to London?

Currently, November is the cheapest month in which you can book a flight from Portland, Maine to London (average of $648). Flying from Portland, Maine to London in June is currently the most expensive (average of $1,089). 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.

What is the cheapest time of day to fly from PWM to LON?

Find hourly flight availability from Portland to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 21, 2024.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 8% on flights from Portland, Maine to London by exploring options for tickets at noon.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated noviembre 21, 2024.
Read reviews from past customers who have flown Scandinavian Airlines, United Airlines and Delta from Portland to London. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,758 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

8.0
Very good
8,758 reviews
8.0
Very good
8,758 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.8
Good
1,350 reviews
8.0
Very good
8,758 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.6
Good
805 reviews
8.0
Very good
8,758 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.5
Good
663 reviews
8.0
Very good
8,758 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.5
Good
3,396 reviews
8.0
Very good
8,758 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Portland to London. 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 from for flights from Portland to London?

    Portland (PWM) is the airport you will fly out of if you book a flight from Portland to London. You should not have trouble finding flights to London from Portland; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the Portland airport to London. It is only a 2.9 mi journey to Portland (PWM) from Portland’s city center.

  • What are the cheapest airlines flying from Portland, Maine to London round-trip?

    Flying on JetBlue is currently your cheapest option to London, with prices starting at $588. Additional round-trip tickets that might be worth considering are offered by Scandinavian Airlines and United Airlines, with the lowest prices starting at $664 and $789, respectively. JetBlue is 30% cheaper than the average price of flights available within the next 90 days to this destination.

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

  • Can I find deals for flights from Portland to London that include hotel bookings?

    Yes. In addition to deals on Portland to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to London.

  • Can I find deals for business class flights from Portland to London?

    Yes. Cheapflights offers flight deals from Portland to London 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 Portland, Maine to London?

    Currently, November is the cheapest month in which you can book a flight from Portland, Maine to London (average of $648). Flying from Portland, Maine to London in June is currently the most expensive (average of $1,089). 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

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Top 4 airlines flying from Portland to London

Discover the top 4 airlines that operate flights from Portland to London. 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 2,629,791 searches. Data last updated noviembre 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$602Average$1,167FlexibilityNo cancel feeOn-time71%
DeltaCheapest$650Average$896FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$670Average$750FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$715Average$926FlexibilityNo cancel feeOn-time69%
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