Question 1

Which stopover airport has the shortest connection time from London to Portland, Maine?

Accepted Answer

Newark (EWR) has the shortest average stopover time for this route: 1h 22m.

Question 2

Which stopover airport has the shortest travel time from London to Portland, Maine?

Accepted Answer

Flights connecting via Newark (EWR) have the shortest average one-way travel time: 11h 23m.

Question 3

What is the cheapest day to depart on your flight to Portland, Maine?

Accepted Answer

According to our data, Monday is the cheapest day to fly to Portland, Maine from London. The lowest ticket price found for a Monday departure recently was £639. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Portland, Maine on Friday is £780.

Question 4

Which stopover airport offers the lowest fares from London to Portland, Maine?

Accepted Answer

Flights via Newark (EWR) offer the lowest average return price of £574.

Question 5

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

Accepted Answer

The cheapest month to fly to Portland, Maine from London is in October. Flight prices, which tend to average around £518, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Portland, Maine, with average flight prices from London averaging around £539.

Question 6

Which airlines fly to Portland, Maine?

Accepted Answer

British Airways, Virgin Atlantic and KLM are the top three most popular airlines that fly to Portland, Maine from London according to our data. British Airways is the first choice among our users, with 42% of people opting to fly with this airline when travelling to Portland, Maine. Keep in mind that there are 17 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

Question 7

Which airport is the most popular for stopovers for flights between London and Portland, Maine?

Accepted Answer

Philadelphia (PHL) was the most common stop: 33% of momondo users choosing one-stop flights on this route connected there.

Question 8

What is the cheapest time of day to depart on your flight to Portland, Maine?

Accepted Answer

Our data shows that the cheapest London to Portland, Maine flights are usually those with departure times in the evening. Our users have found flights to Portland, Maine in the evening for as low as £599. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £787 on average. Flights to Portland, Maine from London in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 9

What are the benefits of the different airports in London and Portland?

Accepted Answer

Heathrow is beneficial if you’re looking for the greatest selection of Atlantic crossings and also for its great road and rail connectivity, but remember this is a big and busy international airport, so expect huge crowds of people and lots of queues. Heathrow is to the west of London, so if you’re coming from Wales or the west of England, it may be a good choice. Gatwick is to the south of London, if you’re coming up from the coast or you’re in the southern part of Greater London. Southend is off to the east. Stansted and Luton are both to the north of the British capital, so if you’re coming from northern England or Scotland, then those airports may suit your needs best. London City Airport is located at Canary Wharf, which is the closest airport to the old city and also the financial hub of London, if you’re a businessman in a hurry to find flights from London to Portland.

Question 10

Which airlines fly direct from London to Portland, Maine?

Accepted Answer

There are neither direct nor non-stop flights from London to Portland, owing to the fact that the US East Coast is already so well connected to the UK, and Portland is a small city. Flights from London to Portland, therefore, will take in at least one stop, maybe even two or three. A good option to consider for London to Portland flights is to stop in the New York area and then connect to Portland from there. British Airways, Delta and American Airlines all offer service from London Heathrow (LHR) to John F Kennedy International Airport in New York (JFK), while United flies from Heathrow to Newark Liberty International Airport in Newark (EWR), which is also a New York area airport. Delta Connection offers flights to Portland from New York JFK and also from New York La Guardia (LGA), though this would mean a land transfer from JFK to La Guardia. Even if you’re looking for cheap flights from London to Portland, or one-way flights from London to Portland, it is advisable to transfer out of the same airport you flew into, making the JFK-LGA ground connection unnecessary. You could also connect on American Airlines from Heathrow to Philadelphia and then onto Portland, as American Airlines flies from London to Philly and then also to Portland. The advantage of this is that you can book all your flights with a single airline. JetBlue offers flights from London Gatwick (LGW) to JFK, but their connection onto Portland is seasonal, so you would need to check with the airline before you finalise your booking. Most flights from London’s other airports only connect to Europe, not the United States.

Question 11

What is the best way to get in and out of airports in London and Portland?

Accepted Answer

Practically, only Heathrow and Gatwick offer flights from London to Portland, mostly via New York. London’s four other airports – Stansted (STN), Luton (LTN), City (LCY) and Southend (SEN) – are thus not relevant to this discussion, unless your aim is to take a low-cost flight from one of these airports to another part of Europe and then do the long-haul flight to New York, Boston, Washington or Philadelphia, connecting to Portland from there. For this reason, this article is limited to Heathrow and Gatwick. Heathrow is London’s main airport and is very well connected as regards road and rail. The London Orbital motorway, the M25, intersects with the M4 at a systems interchange right near the airport, making Heathrow instantly accessible to all of London and the South-East. Heathrow’s Piccadilly Line connection to the city on the London Underground, together with the speedy Heathrow Express, make this airport a friendly choice in terms of connectivity. Gatwick also enjoys good road and rail connections to central London. Portland’s only major airport, the Portland International Jetport (PWM), offers good road connections on the I-95 and I-295 interstate freeways, as well as a bus connection to the city.

Which cities can you get to from Portland International Jetport?

Portland’s airport gives you access to the whole north-eastern part of the United States and New England, as well as Canada. Just southwest of Portland, you can visit Oregon Coast Aquarium, try Local Ocean Seafoods and visit Newport (Oregon). How about hiring a car and taking in all the sites of this part of the world?

Question 12

When did momondo last update prices for flights from London to Portland Airport?

Accepted Answer

Prices for flights from London to Portland Airport were last updated today.

Question 13

How many operators does momondo search for flights from London to Portland Airport?

Accepted Answer

As of December 2025, there are 7 operators available to choose from for flights from London to Portland Airport.

Question 14

How old do you have to be to fly from London to Portland Airport?

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Portland Airport.

Question 15

What documentation or ID do you need to fly to Portland Airport?

Accepted Answer

The necessary travel and health documents for your Portland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Fastest flight time	15h 43m
Direct flights	None

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom £400	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
Virgin Atlantic	PriceFrom £471	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
Finnair	PriceFrom £473	Free Cancellation	Rating 7.6 1,334 reviews	Search Finnair flights
Icelandair	PriceFrom £491	Free Cancellation	Rating 7.0 589 reviews	Search Icelandair flights
KLM	PriceFrom £501	Free Cancellation	Rating 7.7 1,432 reviews	Search KLM flights
Lufthansa	PriceFrom £514	Free Cancellation	Rating 6.8 7,626 reviews	Search Lufthansa flights
United Airlines	PriceFrom £557	Free Cancellation	Rating 7.4 9,093 reviews	Search United Airlines flights

Cheap flights from London to Boston from £567

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How to get the cheapest flight ticket from London to Portland, Maine

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

What is the cheapest day to depart on your flight to Portland, Maine?

What is the cheapest time of day to depart on your flight to Portland, Maine?

Which airlines fly to Portland, Maine?

Which airport is the most popular for stopovers for flights between London and Portland, Maine?

Philadelphia (PHL) was the most common stop: 33% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London to Portland, Maine?

Flights via Newark (EWR) offer the lowest average return price of £574.

Which stopover airport has the shortest travel time from London to Portland, Maine?

Flights connecting via Newark (EWR) have the shortest average one-way travel time: 11h 23m.

Which stopover airport has the shortest connection time from London to Portland, Maine?

Newark (EWR) has the shortest average stopover time for this route: 1h 22m.

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What is the most popular airline from London to Portland, Maine?

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