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

Cheapflights users have booked flights from Portland, Maine to London round-trip from £464. Other airlines that can offer you cheap pricing are Scandinavian Airlines, from £524, and United Airlines, from £623. JetBlue is currently priced 30% below the average price you’ll pay for this route.

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

The most popular flight routes from Portland, Maine to London are Portland - London Heathrow, Portland - London Gatwick and Portland - London City.

What is the cheapest month to fly from Portland, Maine to London?

Flights from Portland, Maine to London lean towards being more expensive in July. Prices are generally better when you fly from Portland, Maine to London in February, with the cheapest ticket starting at £480.

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

A simple way to save on the total cost of your ticket is to fly from Portland, Maine to London at midday. If you’re flexible enough to do this you can expect to save up to 6% on your trip compared to booking a flight in the morning.

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 0 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.

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 holiday 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.

£464+ Flights from Portland, Maine to London

Find flights from Portland to London within your budget

Fly from

Fly to

Route

Depart

Return

Price

PortlandLondon

PWM - LHR

PWMLHR

Portland

Sun 4/5

17:50-09:30

1 stop10h 40m

London Heathrow

Sat 17/5

08:25-16:55

1 stop13h 30m

£464

PortlandLondon

PWM - LHR

PWMLHR

Portland

Tue 3/12

14:59-21:40

2 stops25h 41m

London Heathrow

Mon 9/12

19:30-23:59

2 stops33h 29m

£524

PortlandLondon

PWM - LHR

PWMLHR

Portland

Sun 20/4

12:47-05:55

1 stop12h 08m

London Heathrow

Tue 29/4

13:45-23:17

2 stops14h 32m

£623

PortlandLondon

PWM - LHR

PWMLHR

Portland

Sat 19/4

15:15-20:00

1 stop23h 45m

London Heathrow

Tue 29/4

11:30-23:38

2 stops17h 08m

£634

PortlandLondon

PWM - LHR

PWMLHR

Portland

Thu 9/1

06:00-07:10

2 stops20h 10m

London Heathrow

Mon 20/1

19:25-22:30

2 stops32h 05m

£662

PortlandLondon

PWM - LHR

PWMLHR

Portland

Sat 3/5

19:15-21:00

2 stops44h 45m

London Heathrow

Sat 17/5

09:30-23:17

2 stops18h 47m

£697

PortlandLondon

PWM - LHR

PWMLHR

Portland

Thu 9/1

15:02-11:10

1 stop15h 08m

London Heathrow

Mon 20/1

16:35-23:57

1 stop12h 22m

£714

PortlandLondon

PWM - LCY

PWMLCY

Portland

Thu 9/1

15:02-09:30

2 stops13h 28m

London City

Mon 20/1

10:00-23:57

2 stops18h 57m

£745

PortlandLondon

PWM - LGW

PWMLGW

Portland

Sat 3/5

17:50-13:00

2 stops38h 10m

London Gatwick

Sat 17/5

14:00-16:55

2 stops55h 55m

£746

PortlandLondon

PWM - LHR

PWMLHR

Portland

Thu 30/1

16:00-06:35

1 stop9h 35m

London Heathrow

Sun 2/2

09:50-22:34

2 stops17h 44m

£807

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 14 results

Cheap flight deals from Portland to London

Round-trip from	£464
Popular in	July
Cheapest in	February
Average price	£562

JetBlue
4/5-17/5
2 total stops
24h 10m total
Portland to London

Search Deals

High demand for flights, 31% potential price rise

Search Deals

Best time to find cheap flights, 25% potential price drop

Search Deals

Average for round-trip flights in November 2024

Search Deals

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 21 November 2024.

Tue 3/1214:59PWM - LHR

2 stops25h 41mScandinavian Airlines

Mon 9/1219:30LHR - PWM

2 stops33h 29mScandinavian Airlines

Deal found 20/11£524

Wed 4/1206:00PWM - LHR

2 stops20h 10mAir Canada

Wed 11/1215:00LHR - PWM

2 stops36h 50mAir Canada

Deal found 20/11£709

Wed 4/1206:00PWM - LHR

1 stop9h 35mUnited Airlines

Wed 11/1207:30LHR - PWM

2 stops16h 16mUnited Airlines

Deal found 20/11£714

Wed 4/1212:51PWM - LHR

1 stop12h 59mKLM

Wed 11/1214:30LHR - PWM

1 stop14h 00mKLM

Deal found 20/11£727

Wed 4/1217:14PWM - LHR

2 stops13h 36mMultiple Airlines

Wed 11/1209:00LHR - PWM

3 stops18h 50mMultiple Airlines

Deal found 20/11£841

Wed 4/1212:20PWM - LGW

2 stops16h 25mMultiple Airlines

Wed 11/1211:40LGW - PWM

2 stops16h 18mMultiple Airlines

Deal found 20/11£890

Wed 18/1206:05PWM - LHR

1 stop19h 15mVirgin Atlantic

Wed 25/1206:30LHR - PWM

2 stops22h 40mVirgin Atlantic

Deal found 20/11£895

Wed 18/1214:55PWM - LHR

2 stops17h 55mDelta

Wed 25/1206:30LHR - PWM

2 stops22h 40mDelta

Deal found 20/11£912

Tue 3/1211:24PWM - LHR

1 stop13h 56mAustrian Airlines

Mon 9/1219:25LHR - PWM

2 stops28h 21mAustrian Airlines

Deal found 20/11£1,152

Fri 29/1108:00PWM - LHR

1 stop20h 20mAmerican Airlines

Sat 7/1209:50LHR - PWM

2 stops17h 56mAmerican Airlines

Deal found 20/11£1,208

Tue 26/1114:55PWM - LCY

2 stops13h 35mDelta

Tue 3/1209:20LCY - PWM

2 stops19h 27mDelta

Deal found 21/11£1,827

Best flights from Portland to London
Discover carefully curated flight deals from Portland to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 November 2024.

Sun 4/517:50PWM - LHR

1 stop10h 40mJetBlue

Sat 17/508:25LHR - PWM

1 stop13h 30mJetBlue

Deal found 20/11£464

Tue 3/1214:59PWM - LHR

2 stops25h 41mScandinavian Airlines

Mon 9/1219:30LHR - PWM

2 stops33h 29mScandinavian Airlines

Deal found 20/11£524

Sun 20/412:47PWM - LHR

1 stop12h 08mUnited Airlines

Tue 29/413:45LHR - PWM

2 stops14h 32mUnited Airlines

Deal found 20/11£623

Sat 19/415:15PWM - LHR

1 stop23h 45mDelta

Tue 29/411:30LHR - PWM

2 stops17h 08mDelta

Deal found 20/11£634

Thu 9/106:00PWM - LHR

2 stops20h 10mMultiple Airlines

Mon 20/119:25LHR - PWM

2 stops32h 05mMultiple Airlines

Deal found 20/11£662

Sat 3/519:15PWM - LHR

2 stops44h 45mAir Canada

Sat 17/509:30LHR - PWM

2 stops18h 47mAir Canada

Deal found 20/11£697

Thu 9/115:02PWM - LHR

1 stop15h 08mKLM

Mon 20/116:35LHR - PWM

1 stop12h 22mKLM

Deal found 20/11£714

Sat 3/517:50PWM - LGW

2 stops38h 10mTurkish Airlines

Sat 17/514:00LGW - PWM

2 stops55h 55mTurkish Airlines

Deal found 20/11£746

Thu 30/116:00PWM - LHR

1 stop9h 35mAmerican Airlines

Sun 2/209:50LHR - PWM

2 stops17h 44mAmerican Airlines

Deal found 20/11£807

Wed 18/1206:05PWM - LHR

1 stop19h 15mVirgin Atlantic

Wed 25/1206:30LHR - PWM

2 stops22h 40mVirgin Atlantic

Deal found 20/11£895

Tue 3/1211:24PWM - LHR

1 stop13h 56mAustrian Airlines

Mon 9/1219:25LHR - PWM

2 stops28h 21mAustrian Airlines

Deal found 20/11£1,152

Thu 9/115:02PWM - LCY

2 stops13h 28mDelta

Mon 20/110:00LCY - PWM

2 stops18h 57mDelta

Deal found 20/11£745

Last-minute flights from Portland to London
Discover last-minute flight deals from Portland to London. Data last updated 21 November 2024 and is based on user searches.

Tue 26/1114:55PWM - LHR

2 stops20h 05mScandinavian Airlines

Tue 3/1219:30LHR - PWM

2 stops33h 29mScandinavian Airlines

Deal found 21/11£574

Tue 26/1111:24PWM - LHR

3 stops27h 06mMultiple Airlines

Tue 3/1212:15LHR - PWM

3 stops28h 56mMultiple Airlines

Deal found 21/11£1,122

Tue 26/1106:10PWM - LGW

3 stops23h 45mMultiple Airlines

Tue 3/1211:55LGW - PWM

3 stops29h 16mMultiple Airlines

Deal found 21/11£1,137

Tue 26/1113:31PWM - LHR

1 stop12h 09mUnited Airlines

Tue 3/1215:00LHR - PWM

2 stops28h 59mUnited Airlines

Deal found 21/11£1,326

Tue 26/1114:55PWM - LHR

1 stop12h 00mKLM

Tue 3/1214:30LHR - PWM

1 stop14h 17mKLM

Deal found 21/11£1,343

Tue 26/1114:55PWM - LCY

2 stops13h 35mDelta

Tue 3/1209:20LCY - PWM

2 stops19h 27mDelta

Deal found 21/11£1,827

Fri 29/1108:00PWM - LHR

1 stop20h 20mAmerican Airlines

Sat 7/1209:50LHR - PWM

2 stops17h 56mAmerican Airlines

Deal found 20/11£1,208

Fri 29/1105:00PWM - LHR

1 stop10h 10mDelta

Sat 7/1210:50LHR - PWM

1 stop18h 18mDelta

Deal found 20/11£1,231

Tue 3/1214:59PWM - LHR

2 stops25h 41mScandinavian Airlines

Mon 9/1219:30LHR - PWM

2 stops33h 29mScandinavian Airlines

Deal found 20/11£524

Tue 3/1211:24PWM - LHR

1 stop13h 56mAustrian Airlines

Mon 9/1219:25LHR - PWM

2 stops28h 21mAustrian Airlines

Deal found 20/11£1,152

Wed 4/1206:00PWM - LHR

2 stops20h 10mAir Canada

Wed 11/1215:00LHR - PWM

2 stops36h 50mAir Canada

Deal found 20/11£709

Wed 4/1206:00PWM - LHR

1 stop9h 35mUnited Airlines

Wed 11/1207:30LHR - PWM

2 stops16h 16mUnited Airlines

Deal found 20/11£714

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 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.

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, January is the cheapest month in which you can book a flight from Portland, Maine to London (average of £112). Flying from Portland, Maine to London in July is currently the most expensive (average of £160). 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.

Rainfall in London by month

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Get a feel of what it's like to fly with Scandinavian Airlines, United Airlines and Delta from Portland to London by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,756 reviews

Check prices

Reviews

1 / 10

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

Delta

8.0

Very Good

8,756 reviews

Delta

8.0

Very Good

8,756 reviews

Check prices

Reviews

1 / 10

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

KLM

7.8

Good

1,349 reviews

Delta

8.0

Very Good

8,756 reviews

Check prices

Reviews

1 / 10

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

Austrian Airlines

7.6

Good

804 reviews

Delta

8.0

Very Good

8,756 reviews

Check prices

Reviews

1 / 10

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

Virgin Atlantic

7.5

Good

663 reviews

Delta

8.0

Very Good

8,756 reviews

Check prices

Reviews

1 / 10

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

JetBlue

7.5

Good

3,389 reviews

Delta

8.0

Very Good

8,756 reviews

Check prices

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

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 0 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?
Cheapflights users have booked flights from Portland, Maine to London round-trip from £464. Other airlines that can offer you cheap pricing are Scandinavian Airlines, from £524, and United Airlines, from £623. JetBlue is currently priced 30% below the average price you’ll pay for this route.
What are the most popular routes from Portland, Maine to London?
The most popular flight routes from Portland, Maine to London are Portland - London Heathrow, Portland - London Gatwick and Portland - London City.
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 holiday 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, January is the cheapest month in which you can book a flight from Portland, Maine to London (average of £112). Flying from Portland, Maine to London in July is currently the most expensive (average of £160). 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.

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How does Cheapflights help users find flights from Portland to London?

Cheapflights helps you search for flights from Portland to London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Portland to London?

Cheapflights helps you find that perfect flight to London from Portland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Portland to London with no change fees?

Certainly. Search results for flights to London from Portland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Portland to London become cheaper?

Yes, Cheapflights offers price alerts on Portland to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Portland, Maine to London from £464

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find flights from Portland to London within your budget

Cheap flight deals from Portland to London

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Portland to London

Cheapest flights from Portland to LondonExplore 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 21 November 2024.

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 21 November 2024.

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.

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?

Rainfall in London by month

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

Temperature in London by month

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

Reviews of airlines servicing London

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?

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

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?

How can I find direct flights from Portland to London?

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

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

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.

Alternative routes for Portland to London

See prices for flight routes from nearby airports that may be better suited for you.

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 Portland to London?

Why should you use Cheapflights to find cheap flight tickets from Portland to London?

Can Cheapflights find flights from Portland to London with no change fees?

Can Cheapflights notify me if prices for flights from Portland to London become cheaper?

100% Free

Book with Flexibility

Travel Smart

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 21 November 2024.