Cheap flights from London to Portland Maine

from as little as £374

14 nights in Portland Maine, departing London Gatwick on 04 / Sep / 2025 with JetBlue (price found 43 hours ago)

Subject to availability, prices correct of the last 24 hours
Portland Maine

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The London / Portland Maine route

All 5143 km of it

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Portland Maine flight facts

What you need to know

Alternative flights from the UK to Portland Maine

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Portland Maine

Today alone, Netflights has searched over 35 flights. 04 / Sep / 2025 is currently the lowest priced day of the year to fly the London/Portland Maine route. There are around 42 flights on any given week from the UK to Portland Maine and the cheapest month to fly right now is September.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

-8 °C

AVG

9 °C

HIGHEST

27 °C

Rainfall (mm)
LOWEST

65 mm

AVG

89.8 mm

HIGHEST

125 mm

Key facts about Portland Maine

How to get cheap flights from London to Portland Maine

Tips and advice from our flight experts

Find a good deal on your flight from London to Portland Maine with Netflights. 42 flights go via this route every week, and we've collected them all to help you find the best flight deal. If you want to keep your options open, take a look at flights from another airport in London.

The most popular airlines for this route are American Airlines, British Airways & Aer Lingus, while London Heathrow (LHR) is the most popular departure airport in the city. But when you fly is just as important as where you fly from. Search by month to find out when flights are at the priciest and their cheapest.

Last-minute deals can be cheaper, but it's risky. It's best to book flights to Portland Maine in advance to avoid disappointment. JetBlue usually have the lowest prices, so keep an eye out for their flights. Flights from London to Portland Maine generally take about 15 hrs 35 mins.

Today alone, we’ve scanned 35 flights worldwide to bring you the best flight deals in one place. Did you know you can also compare car hire and hotel prices in the USA with Netflights? Take a look to get an idea of prices in Portland Maine.

Other popular destinations near Portland Maine

Where other people are flying to

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