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Cheap flight tickets from London Heathrow to Portland

Compare London Heathrow to Portland flight deals

Find the cheapest month or even day of the year to fly to Portland

Book the best Portland fare with no extra fees

Flight deals from London Heathrow to Portland

Looking for a cheap last-minute deal or the best return flight from London Heathrow to Portland? Find the lowest prices on one-way and return tickets right here.
Portland.RM3,244 per passenger.Departing Tue, 20 Jan, returning Mon, 26 Jan.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Tue, 20 Jan, arriving in Portland.Inbound indirect flight with United, departs from Portland on Mon, 26 Jan, arriving in London Heathrow.Price includes taxes and charges.From RM3,244, select.
Portland.RM3,247 per passenger.Departing Mon, 16 Feb, returning Tue, 24 Feb.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Mon, 16 Feb, arriving in Portland.Inbound indirect flight with United, departs from Portland on Tue, 24 Feb, arriving in London Heathrow.Price includes taxes and charges.From RM3,247, select.
Portland.RM3,249 per passenger.Departing Tue, 20 Jan, returning Wed, 4 Feb.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Tue, 20 Jan, arriving in Portland.Inbound indirect flight with United, departs from Portland on Wed, 4 Feb, arriving in London Heathrow.Price includes taxes and charges.From RM3,249, select.
Portland.RM3,310 per passenger.Departing Tue, 14 Apr, returning Thu, 23 Apr.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Tue, 14 Apr, arriving in Portland.Inbound indirect flight with United, departs from Portland on Thu, 23 Apr, arriving in London Heathrow.Price includes taxes and charges.From RM3,310, select.
Portland.RM3,310 per passenger.Departing Tue, 5 May, returning Tue, 12 May.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Tue, 5 May, arriving in Portland.Inbound indirect flight with United, departs from Portland on Tue, 12 May, arriving in London Heathrow.Price includes taxes and charges.From RM3,310, select.
Portland.RM3,415 per passenger.Departing Fri, 20 Feb, returning Mon, 2 Mar.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Fri, 20 Feb, arriving in Portland.Inbound indirect flight with United, departs from Portland on Mon, 2 Mar, arriving in London Heathrow.Price includes taxes and charges.From RM3,415, select.
Portland.RM3,423 per passenger.Departing Sat, 14 Mar, returning Tue, 24 Mar.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Sat, 14 Mar, arriving in Portland.Inbound indirect flight with United, departs from Portland on Tue, 24 Mar, arriving in London Heathrow.Price includes taxes and charges.From RM3,423, select.
Portland.RM3,583 per passenger.Departing Thu, 1 Oct, returning Mon, 5 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from London Heathrow on Thu, 1 Oct, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Mon, 5 Oct, arriving in London Heathrow.Price includes taxes and charges.From RM3,583, select.

Find the cheapest month to fly from London Heathrow to Portland

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Portland flights are currently cheapest in January.
Dec
from RM5,539
Jan
from RM3,244
Feb
from RM3,247
Mar
from RM3,423
Apr
from RM3,310
May
from RM3,310
Jun
from RM4,059
Jul
from RM4,256
Aug
from RM5,885
Sep
from RM3,761
Oct
from RM3,583
Nov
Find prices

London Heathrow to Portland: Alternative routes

Compare routes from London Heathrow to Portland below. You may find an airport to fly into that's cheaper, faster, or easier than Portland.

London to Portland: Flight information

The things to know before you go.
Cheapest flight foundRM3,244
Cheapest month to flyJanuary

Finding cheap flights from London Heathrow to Portland: Frequently asked questions

The best price we found for a return flight from London Heathrow to Portland is RM3,244. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London Heathrow to Portland. But we found flights with one or more stops from RM3,243.
As of December 2025, there are no flights flying from London Heathrow to Portland.
The cheapest month to fly from London Heathrow to Portland is usually January.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Portland Airport on Tuesday, 20 January 2026.
No airlines currently offer direct flights between London Heathrow Airport and Portland Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Portland but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Portland is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Portland.

Flying from London Heathrow Airport (LHR) to Portland International Jetport Airport (PWM): what you need to know

  • Your LHR to PWM flight won't wait if you're late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Flying during a peak time such as July? School holidays and other popular periods can result in longer lines at check-in and security. Be extra cautious and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

  • We make it a piece of cake to book a flight with a stopover. To see your options for tickets from London Heathrow Airport to Portland International Jetport Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to tour the city of your choice. Stopovers between LHR and PWM include:

    • John F. Kennedy International Airport

    • Philadelphia International Airport

    • Newark Liberty International Airport

How to find the cheapest flights from London Heathrow Airport (LHR) to Portland International Jetport Airport (PWM)

  • Right now, RM2,312 is the cheapest price we've seen for a one-way London Heathrow Airport to Portland International Jetport Airport flight. The best price for a return plane ticket is RM3,244. Bear in mind that fares could change due to demand when booking.

  • It's usually best to book as early as possible if you want to get cheap tickets from LHR to PWM. That's because airlines adjust prices based on demand, which tends to rise closer to the date of departure.

  • Finding cheap flights from London Heathrow Airport to Portland International Jetport Airport is more likely if you're flexible with your travel plans. Use the 'Whole month' search function to see the lowest fares across the month and snap up a great deal.

  • Cut down on the time spent looking for cheap flights from LHR to PWM by setting up a Price Alert. You'll get an email or notification on the app when fares go down.

  • Select your preferred departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from London Heathrow Airport to Portland International Jetport Airport.

Handy information about London Heathrow Airport (LHR)

  • 68.18% of flights that depart London Heathrow Airport arrive at their destination on time.

  • To get to London Heathrow Airport from central London, it takes around 55 minutes if you're planning to drive. This depends on traffic though. It's approximately 31 kilometres from the airport to the city centre.

  • The journey when using public transport takes roughly 1 hour.

  • Have an early flight from London Heathrow Airport to Portland International Jetport Airport? Avoid the last-minute rush to the terminal (and get some extra shut-eye) by picking one of these stays close to LHR:

Arriving at Portland International Jetport Airport (PWM)

Getting from Portland International Jetport Airport (PWM) to central Portland

  • You'll find PWM at 1001 Westbrook Street.

  • Portland International Jetport Airport to the centre of Portland has a drive time of about 15 minutes. It's approximately 8 kilometres away.

  • Travelling by public transport takes roughly 40 minutes.

When to fly to Portland International Jetport Airport (PWM)

  • It's time to plan your trip dates for your flight from London Heathrow Airport to Portland International Jetport Airport. August is the busiest month to visit Portland. If you want a more laid-back vibe, go in March.

  • When booking your flight from London Heathrow Airport to Portland International Jetport Airport, think about the type of weather you enjoy. July is the warmest month in Portland, with temperatures ranging from 14ºC (57ºF) to 25ºC (77ºF).

  • January sees average temperatures of between -10ºC (14ºF) and 3ºC (37ºF). Search for cheap tickets from LHR to PWM around that time if you want to travel in cooler conditions.

Explore more of United States

  • New York is just one of the many cities in United States waiting to be explored after you've experienced Portland. Around 451 kilometres away to the south-west, check out popular attractions including Statue of Liberty, Central Park and Empire State Building.

  • Around 161 kilometres south-west of Portland, Boston is another essential stop in United States. No visit is complete without checking out Freedom Trail, Museum of Fine Arts Boston and Boston Tea Party Ships & Museum.

Plan the rest of your trip from London to Portland

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.