Cheap flights from Portland, Maine to the United Kingdom from $369
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to the United Kingdom departing on 6/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Portland, Maine to United Kingdom
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to United Kingdom?
In general, November is the cheapest month to fly from Portland, Maine to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $712. If you aren’t able to travel to United Kingdom during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $716.
What is the cheapest day to depart on your flight to United Kingdom?
The cheapest day to depart from Portland, Maine to United Kingdom is on a Tuesday when prices can be found for as low as $788. The most expensive day to fly to United Kingdom is Friday, with ticket prices averaging around $936.
What is the cheapest airline that flies from Portland to United Kingdom?
JetBlue, WestJet, and Air Canada are the most popular carriers operating from Portland to United Kingdom
What airlines fly to United Kingdom?
British Airways, Delta and Virgin Atlantic are the top three most popular airlines that fly to United Kingdom from Portland, Maine according to our data. British Airways is the first choice among our users, with 48% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 19 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.
Cheap Portland, Maine to United Kingdom flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to United Kingdom
When did momondo last update prices for flights from Portland Airport to United Kingdom?
Prices for flights from Portland Airport to United Kingdom refresh daily.
How many operators does momondo search for flights from Portland Airport to United Kingdom?
As of April 2025, there are 4 operators available to choose from for flights from Portland Airport to United Kingdom.
How old do you have to be to fly from Portland Airport to United Kingdom?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The required travel and health documents for your United Kingdom trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Portland, Maine to United Kingdom
Compare and see reviews for airlines that fly from Portland, Maine to United Kingdom with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $586 | Free Cancellation | Rating 7.3 2,924 reviews | |||
| PriceFrom $638 | Free Cancellation | Rating 8.0 7,920 reviews | |||
| PriceFrom $680 | Free Cancellation | Rating 7.8 1,333 reviews | |||
| PriceFrom $715 | Free Cancellation | Rating 7.4 8,685 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Portland to United Kingdom?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to United Kingdom. momondo saves you time and could save you money on your trip.
Can I find flights from Portland to United Kingdom with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to United Kingdom from Portland with this policy.
How can momondo help me find flights from Portland to United Kingdom?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to United Kingdom from Portland.
I’m not ready to book a flight from Portland to United Kingdom right now. Can momondo alert me if prices change?
If you are simply researching potential flights to United Kingdom, momondo offers a useful price alert feature which will track prices for flights to United Kingdom from Portland and alert you when they change.