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Cheap Flights from London (LHR) to Portland (PDX)

Compare London Heathrow to Portland flight deals

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

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Flight deals from London Heathrow to Portland

Looking for a cheap last-minute deal or the best return flight from London Heathrow Airport to Portland Airport? If you want to travel next month, return fares start from $1,148. Find the lowest prices on one-way and return tickets right here.
Portland.$1,121 per passenger.Departing Thu, 22 Apr, returning Mon, 26 Apr.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from London Heathrow on Thu, 22 Apr, arriving in Portland.Inbound indirect flight with Scandinavian Airlines, departs from Portland on Mon, 26 Apr, arriving in London Heathrow.Price includes taxes and charges.From $1,121, select.
Portland.$1,148 per passenger.Departing Mon, 21 Sep, returning Mon, 28 Sep.Return flight with TAP Air Portugal and Alaska Airlines.Outbound indirect flight with TAP Air Portugal, departs from London Heathrow on Mon, 21 Sep, arriving in Portland.Inbound indirect flight with Alaska Airlines, departs from Portland on Mon, 28 Sep, arriving in London Heathrow.Price includes taxes and charges.From $1,148, select.
Portland.$1,267 per passenger.Departing Mon, 7 Dec, returning Mon, 14 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Mon, 7 Dec, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Mon, 14 Dec, arriving in London Heathrow.Price includes taxes and charges.From $1,267, select.
Portland.$1,267 per passenger.Departing Wed, 18 Nov, returning Mon, 30 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Wed, 18 Nov, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Mon, 30 Nov, arriving in London Heathrow.Price includes taxes and charges.From $1,267, select.
Portland.$1,267 per passenger.Departing Wed, 7 Oct, returning Mon, 12 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Wed, 7 Oct, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Mon, 12 Oct, arriving in London Heathrow.Price includes taxes and charges.From $1,267, select.
Portland.$1,268 per passenger.Departing Wed, 10 Mar, returning Wed, 24 Mar.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Wed, 10 Mar, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Wed, 24 Mar, arriving in London Heathrow.Price includes taxes and charges.From $1,268, select.
Portland.$1,270 per passenger.Departing Tue, 27 Oct, returning Tue, 3 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Tue, 27 Oct, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Tue, 3 Nov, arriving in London Heathrow.Price includes taxes and charges.From $1,270, select.
Portland.$1,270 per passenger.Departing Tue, 24 Nov, returning Tue, 1 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Tue, 24 Nov, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Tue, 1 Dec, arriving in London Heathrow.Price includes taxes and charges.From $1,270, select.
Portland.$1,271 per passenger.Departing Mon, 18 Jan, returning Mon, 25 Jan.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Mon, 18 Jan, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Mon, 25 Jan, arriving in London Heathrow.Price includes taxes and charges.From $1,271, select.
Portland.$1,271 per passenger.Departing Mon, 1 Feb, returning Mon, 8 Feb.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Mon, 1 Feb, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Mon, 8 Feb, arriving in London Heathrow.Price includes taxes and charges.From $1,271, select.
Portland.$1,274 per passenger.Departing Mon, 25 Jan, returning Wed, 3 Feb.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Mon, 25 Jan, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Wed, 3 Feb, arriving in London Heathrow.Price includes taxes and charges.From $1,274, select.
Portland.$1,277 per passenger.Departing Mon, 31 Aug, returning Wed, 30 Sep.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Mon, 31 Aug, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Wed, 30 Sep, arriving in London Heathrow.Price includes taxes and charges.From $1,277, select.
Portland.$1,277 per passenger.Departing Wed, 30 Sep, returning Thu, 15 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Wed, 30 Sep, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Thu, 15 Oct, arriving in London Heathrow.Price includes taxes and charges.From $1,277, select.
Portland.$1,286 per passenger.Departing Tue, 27 Apr, returning Tue, 4 May.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Tue, 27 Apr, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Tue, 4 May, arriving in London Heathrow.Price includes taxes and charges.From $1,286, select.
Portland.$1,352 per passenger.Departing Fri, 14 May, returning Mon, 17 May.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from London Heathrow on Fri, 14 May, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Mon, 17 May, arriving in London Heathrow.Price includes taxes and charges.From $1,352, select.
Portland.$1,355 per passenger.Departing Mon, 7 Sep, returning Tue, 19 Jan.Return flight with Brussels Airlines.Outbound indirect flight with Brussels Airlines, departs from London Heathrow on Mon, 7 Sep, arriving in Portland.Inbound indirect flight with Brussels Airlines, departs from Portland on Tue, 19 Jan, arriving in London Heathrow.Price includes taxes and charges.From $1,355, 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 April.
Aug
from $1,947
Sep
from $1,148
Oct
from $1,267
Nov
from $1,267
Dec
from $1,267
Jan
from $1,271
Feb
from $1,271
Mar
from $1,268
Apr
from $1,121
May
from $1,352
Jun
from $1,499
Jul
from $1,565

Direct flights from London Heathrow to Portland

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.

Portland

10km from central Portland
ClosestCheapest
from $1,121
Search flights

London to Portland: Flight information

The things to know before you go.
Cheapest flight found$1,121
Cheapest month to flyApril
Average flight time10 hrs, 10 mins
Most popular airlineAlaska Airlines
Average flights per week45

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 $1,121. 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.
10 hours and 10 minutes is the average flight time from London Heathrow to Portland.
Alaska Airlines, Aer Lingus and American Airlines fly direct from London Heathrow to Portland.
As of August 2026, there are 45 flights per week flying from London Heathrow to Portland.
The cheapest month to fly from London Heathrow to Portland is usually April.
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 Thursday, 22 April 2027.
Yes – the average flight time is 10 hours and 10 minutes.
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, Scandinavian Airlines and British Airways offer the cheapest flight tickets to Portland.

Travelling from London Heathrow Airport (LHR) to Portland Airport (PDX): what you need to know

  • The average time for a direct flight from London Heathrow Airport to Portland Airport is 10 hours 5 minutes.

  • The timezone in Portland is UTC-8, which is eight hours behind London.

  • Flights from LHR to PDX start at 14:20 — the first with British Airways. The last departure is at 15:40 with British Airways. In total, you can take your pick of six weekly London Heathrow Airport to Portland Airport flights.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This way, you'll have plenty of time to catch your LHR to PDX flight.

  • Flying during a peak month like July? Major public holidays and other popular periods can result in longer lines at check-in and security. Be extra cautious and get there up to four hours ahead of an international flight and two hours before domestic departures.

  • Jetting into Portland (and then seeing more of the United States!) is a breeze with British Airways. This popular carrier has direct flights from London Heathrow Airport to Portland Airport.

  • The airline most travellers fly with on this route is British Airways.

  • British Airways is the most punctual carrier that offers LHR to PDX flights, with 70.0% of its services landing on time.

  • Think about adding a stopover when booking your ticket from London Heathrow Airport to Portland Airport. Just uncheck 'Direct flights only' to break up your journey, or even explore someplace new along the way. Here are some options between LHR and PDX:

    • Seattle / Tacoma International Airport

    • Vancouver International Airport

    • Reykjavik Keflavik Airport

Handy information about London Heathrow Airport (LHR)

  • When it comes to London Heathrow Airport's on-time performance, 78% of flights complete their journey on time.

  • London Heathrow Airport is about 24 kilometres from central London. If you're catching a taxi, ride-sharing or driving from the centre, it'll take you 45 minutes or so to arrive, depending on the traffic.

  • Expect a trip time of around 25 minutes on public transport.

  • Looking for a handy hotel close to LHR? If you've booked an early flight from London Heathrow Airport to Portland Airport, these stays will have you sleeping moments from check-in:

Arriving at Portland Airport (PDX)

When to fly to Portland Airport (PDX)

  • July is the most popular month for flights from London Heathrow Airport to Portland Airport. For smaller crowds, visit Portland in March.

  • Before locking in your flight from London Heathrow Airport to Portland Airport, think about the kind of weather you enjoy. August is the warmest month in Portland, with temperatures ranging from 12ºC (54ºF) to 31ºC (88ºF).

  • Search for cheap tickets from LHR to PDX in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between -2ºC (28ºF) and 10ºC (50ºF) on average.

Explore more of the United States

  • Seattle is just one of the many places in the United States waiting to be discovered once you've taken in the sights of Portland. Around 241 kilometres away to the north, its top attractions include Space Needle, Pike Place Market and Seattle Skyline.

  • Spokane is another well-known destination in the United States and is around 467 kilometres north-east of Portland. No journey is complete without a visit to Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes.

Plan smart, explore more

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Plan the rest of your trip from London to Portland

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.