£400+ Cheap flights to Portland, Maine

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 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
— PWM
18 Dec — 25 Dec1
1 adult
1 adult, Economy, 0 bags

Flights to Portland, ME in 2025

Find the latest flights to Portland in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 18 November 2025.

Return from

£568

One-way from

£400

Popular in

August

Cheapest in

October

Average price

£577
United Airlines
  • United Airlines
  • 10/2-17/2
  • 4 total stops
  • 32h 27m total
  • London to Portland
19/1
  • 19/1
  • 1 total stop
  • 14h 44m total
  • London to Portland
Highest demand for flights based on searches. 8% potential increase in price (£60 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£18 potential savings vs. average return price).
Average for return flights in November 2025

Find flight deals to Portland

Enter your travel dates to find the best prices.

Cheapest flights to Portland
Explore the most affordable flight options available to Portland. Find the lowest fares based on data from user searches, with prices last updated on 18 November 2025.

Tue 16/1210:05LHR - PWM
1 stop13h 10mAmerican Airlines
Tue 23/1218:41PWM - LHR
2 stops14h 54mAmerican Airlines
Deal found 17/11£712
Tue 16/1210:05LHR - PWM
1 stop13h 10mMultiple Airlines
Tue 23/1206:00PWM - LHR
1 stop19h 30mMultiple Airlines
Deal found 17/11£750

Cheapflights Fare Finder

 
Locate flights to Portland that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 18 November 2025.
Use the filters below to find and compare flights to Portland that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 10/2

06:35-23:30

2 stops21h 55m

Portland

Tue 17/2

06:00-21:20

1 stop10h 20m

£568

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 10/2

08:55-22:29

1 stop18h 34m

Portland

Tue 17/2

05:31-08:05

2 stops21h 34m

£605

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 16/12

10:05-18:15

1 stop13h 10m

Portland

Tue 23/12

18:41-14:35

2 stops14h 54m

£712

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 16/12

10:05-18:15

1 stop13h 10m

Portland

Tue 23/12

06:00-06:30

1 stop19h 30m

£750

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 28/3

09:10-21:16

2 stops16h 06m

Portland

Tue 31/3

06:00-20:40

1 stop9h 40m

£883

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 19/1

13:10-22:54

1 stop14h 44m

£400

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 19/1

13:10-22:54

1 stop14h 44m

£425

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 6/12

14:50-10:41

3 stops48h 51m

£428

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 3/12

14:50-10:41

3 stops48h 51m

£513

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 26/11

12:15-14:30

3 stops31h 15m

£532

Flights are sorted by cheapest return flights first.

Deals found on 17/11

Showing 1-10 of 14 results
1
2

Best time to book a flight to Portland

Have a flexible travel schedule? Discover the best time to fly to 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.

Cheapflights Insights

Everything you need to know about your flight to Portland

How long is the flight to Portland?

On average, a flight from London to Portland takes 13 hours 15 minutes. Flights to Portland from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the cheapest airlines that fly to Portland?

The cheapest airlines flying from London to Portland are Icelandair, JetBlue and Virgin Atlantic.

Rainfall in Portland by month

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

In terms of precipitation, rainfall in Portland ranges from 73.0 - 115.0 inches per month. November is typically the wettest month, when rainfall can reach 115.0 mm. August is typically the driest time to visit Portland when rainfall is around 73.0 mm.

Temperature in Portland by month

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

If weather is an important factor for your trip to Portland, 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 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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 18 November 2025.
Read reviews from past customers who have flown KLM, Finnair, andUnited Airlines to the United States. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Food

7.3

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

FAQs about flying to Portland

Getting around Portland

It’s easy to get from Portland to surrounding cities. From the Greyhound Terminal you can get to and from Vermont, Boston, Hartford and New York City every day. Other buses can take you to Brunswick, Lewiston, Augusta, Waterville, Bangor or Bar Harbor. The Amtrak trains also run between Portland and Boston several times a day. Trips take only two and a half hours, which is much quicker than the buses. Ferry cruises leave Portland for Bailey Island or Nova Scotia several times a week in the summer. For travel within Portland, cars and motorcycles are all over the place and it’s easy to rent a car. You’ll want to park in a garage, since metered parking is less available and allows you to stay for only a few hours. If you’d prefer not to drive, you can take the Metro or trains.

Portland airport overview

Portland International Jetport is located 3km (2 miles) east of downtown Portland, Maine. The busiest airport in the state, the facility processes more than 1.6 million people every year.

With a reputation for friendly and efficient service, the Jetport is a pleasant introduction to the cosy New England region, though it’s small enough that a stopover of several hours would be tedious. A new terminal is scheduled to open in October 2011 however, with expanded waiting rooms, security facilities, and a new food concourse to improve passenger experience.

Flights to Portland International Jetport mostly come from the Eastern US, Midwest and Canada, with destinations such as Toronto, Baltimore, Atlanta, Newark, Cleveland, Minneapolis, New York, Washington DC, Chicago, Orlando, Detroit, Charlotte and Philadelphia.

  • What is good to know if travelling to Portland?

    Local Art: Portland art galleries mix media to portray the reality and splendour of Portland through paintings and photography. The Domaine Gallery offers fine-art photography, prints about the state’s geography, and jewellery hand-made by artisans. The Fore Street Gallery focuses more on watercolours, oil paintings, and specializes on regional artists. Work also ranges from students to professional. If you decide to take home a painting that suits your style, be sure to pack carefully for your return Portland flight. At the Institute of Contemporary Art, progressive students from the Maine College of Art (MECA) display their work, while in the Portland Museum of Art; American pros like Winslow Homer and Edward Hopper fill the walls. The PMA also gets recognized especially for its temporary exhibits.  Wadsworth-Longfellow House: You’ll see plenty of old, brick homes with lavish gardens and detailed rooftops, but one claims the spotlight more than others: the Henry Wadsworth-Longfellow House. The brick Wadsworth-Longfellow farmhouse sits in the middle of an expansive garden, and is built in the 1788 federal style. The builder, General Peleg Wadsworth, was a hero in the Revolutionary War, and a grandfather to poet Henry Wadsworth Longfellow. The two lived in the house together, and it remains one of New England’s more famous architectural artefacts. Reopened in 2002, the home is part of the Maine Historic Society and is open year-round for travellers.  Harbor side: A mile in length, the Harbor side begins at Casco Bay Lines ferry terminal (at the corner of Commercial and Franklin Streets). For fitness freaks the paved paths allow convenient room for walking, running, and biking with views of the islands. With a 68-acre hillside span of greenery that extends to the water, the Harbor side is your perfect outdoor daytime destination to get the best of the land and the sea.  Portland Sea Dogs: Take in America’s pastime after your flight to Portland lands. The Portland Sea Dogs are a Double A baseball team, affiliated with the World Series Champion Boston Red Sox. Spend an afternoon at the Sea Dogs game for a perfect summertime activity. Park your family on one of Hadlock Field’s aluminium benches, get some game-time grub, and watch as young hopefuls swing their way toward the pros. Pro-players including Josh Beckett, Brad Penny, Alex Gonzalez, and Kevin Millar played for the Portland Sea Dogs – pay close attention to the guys on the field, they might the next big baseball stars.

  • What airport do you fly into for flights to Portland?

    Portland (PWM), located 2.9 mi from the city center, is the airport you fly into when you book flights to Portland.

  • Can I find cheaper flights to Portland if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Portland on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Portland?

    Based on reviews from Cheapflights users, Icelandair is rated the highest out of the airlines that fly to Portland.

  • Where does the fastest flight to Portland depart from?

    For those looking to save time traveling to Portland, London offers the quickest one-way flight (13 hours 15 minutes).

  • Does Portland have car hire?

    Yes. Those touching down at Portland can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Portland?

    Yes. Portland has hotels nearby for those requiring accommodations. Embassy Suites by Hilton Portland Maine is the closest property to Portland (0.0 mi away from Portland).

See more FAQs

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