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

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Flight deals from London to Portland

Looking for a cheap last-minute deal or the best return flight from London to Portland? Find the lowest prices on one-way and return tickets right here.

Portland.£392 per passenger.Departing Thu, 5 Mar, returning Sat, 7 Mar.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London Heathrow on Thu, 5 Mar, arriving in Portland.Inbound indirect flight with Air Canada, departs from Portland on Sat, 7 Mar, arriving in London Heathrow.Price includes taxes and charges.From £392, select.

Portland.£398 per passenger.Departing Fri, 17 Apr, returning Sat, 25 Apr.Return flight with Ryanair and Icelandair.Outbound indirect flight with Ryanair, departs from London Stansted on Fri, 17 Apr, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Sat, 25 Apr, arriving in London Stansted.Price includes taxes and charges.From £398, select.

Portland.£413 per passenger.Departing Sat, 9 May, returning Sun, 10 May.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London Heathrow on Sat, 9 May, arriving in Portland.Inbound indirect flight with Air Canada, departs from Portland on Sun, 10 May, arriving in London Heathrow.Price includes taxes and charges.From £413, select.

Portland.£443 per passenger.Departing Wed, 22 Apr, returning Thu, 7 May.Return flight with Ryanair and Icelandair.Outbound indirect flight with Ryanair, departs from London Stansted on Wed, 22 Apr, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Thu, 7 May, arriving in London Stansted.Price includes taxes and charges.From £443, select.

Portland.£487 per passenger.Departing Sat, 12 Sep, returning Sat, 26 Sep.Return flight with Lufthansa and Alaska Airlines.Outbound indirect flight with Lufthansa, departs from London Heathrow on Sat, 12 Sep, arriving in Portland.Inbound indirect flight with Alaska Airlines, departs from Portland on Sat, 26 Sep, arriving in London Heathrow.Price includes taxes and charges.From £487, select.

Portland.£492 per passenger.Departing Wed, 15 Jul, returning Wed, 12 Aug.Return flight with British Airways and Alaska Airlines.Outbound indirect flight with British Airways, departs from London Heathrow on Wed, 15 Jul, arriving in Portland.Inbound indirect flight with Alaska Airlines, departs from Portland on Wed, 12 Aug, arriving in London Heathrow.Price includes taxes and charges.From £492, select.

Portland.£504 per passenger.Departing Wed, 10 Jun, returning Wed, 17 Jun.Return flight with Norse Atlantic Airways (UK) and Icelandair.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Wed, 10 Jun, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Wed, 17 Jun, arriving in London Luton.Price includes taxes and charges.From £504, select.

Portland.£515 per passenger.Departing Sun, 22 Mar, returning Thu, 16 Apr.Return flight with Ryanair and Icelandair.Outbound indirect flight with Ryanair, departs from London Stansted on Sun, 22 Mar, arriving in Portland.Inbound indirect flight with Icelandair, departs from Portland on Thu, 16 Apr, arriving in London Stansted.Price includes taxes and charges.From £515, select.

Find the cheapest month to fly from London to Portland

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Portland flights are currently cheapest in March.

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Direct flights from London to Portland

London to Portland: Alternative routes

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

Portland

6 miles from central Portland

ClosestCheapest

from £392

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Salem

45 miles from central Portland

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London to Portland: Flight information

The things to know before you go.

Cheapest flight found	£392
Cheapest month to fly	March
Average flight time	10 hrs, 7 mins
Most popular airline	Aer Lingus
Average flights per week	46

Finding cheap flights from London to Portland: Frequently asked questions

How much are return flights from London to Portland?

The best price we found for a return flight from London to Portland is £392. 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.

How long does it take to fly from London to Portland?

10 hours and 7 minutes is the average flight time from London to Portland.

Which airlines fly direct from London to Portland?

Alaska Airlines, Aer Lingus and Finnair fly direct from London to Portland.

How many flights are there a week from London to Portland?

As of February 2026, there are 132 flights per week flying from London to Portland.

When is the cheapest time to fly from London to Portland?

The cheapest month to fly from London to Portland is usually March.

Which upcoming date is cheapest to fly from London to Portland Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Portland Airport on Thursday, 5 March 2026.

Can I get a direct flight from London to Portland Airport?

Yes – the average flight time is 10 hours and 7 minutes.

How can I find the best flight deal to Portland?

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.

When is the best time to book flights to Portland?

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.

Travelling from London to Portland International Airport (PDX): What you need to know

When organising a flight from London to Portland International Airport (PDX), you'll have a good choice of airports to take off from. Check out London Heathrow Airport (LHR) and London Gatwick Airport (LGW) for your departure options. Other possibilities include Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY).
Around 10 hours is the typical travel time on a direct London to Portland International Airport flight.
Portland International Airport is located in Portland. The city runs on the UTC-7 timezone and is seven hours behind London.
London Heathrow Airport (LHR) to Portland International Airport (PDX) is the busiest route, with 6 direct services each week. You can get from LHR to PDX on British Airways's 2:20pm departure.
Your flight from London to PDX won't wait if you're running late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.
Heading off during a peak period like school or public holidays? Expect longer lines at security and check-in. To be on the safe side, arrive up to four hours before international flights and two hours before domestic departures.

Airports in London

London Heathrow Airport (LHR)

You can find a direct flight from London to Portland International Airport (PDX) out of London Heathrow Airport (LHR).
British Airways is a well-known carrier that offers direct flights from London to Portland International Airport leaving from LHR.
British Airways is the airline most travellers choose for flights from LHR to PDX.
The carrier with the best on-time performance on this route is British Airways. Its services land as scheduled 68.57% of the time.
We make it a breeze to find cheap flights from London to PDX with a stopover. To explore all the options leaving from London Heathrow Airport (LHR), uncheck 'Direct flights only.' Then, choose a flight offering a stop long enough to tour your chosen city. Some popular stopovers between LHR and PDX include:
- Seattle-Tacoma International Airport (SEA)
- Vancouver International Airport (YVR)
- Keflavik International Airport (KEF)
LHR is around 31 kms (19 miles) from central London. If you're catching a cab, ride-sharing or driving from the centre, it'll take you 55 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the journey time to be around 1 hour.
Searching for a comfortable hotel close to London Heathrow Airport? If you're catching an early flight from London to Portland International Airport, these stays will put you a quick hop from check-in:
68.18% of flights that depart London Heathrow Airport reach their destination on time.

London Gatwick Airport (LGW)

Split up your flight from London to Portland International Airport with a stop so you can stretch your legs or cross a new place off your list. Some popular stopovers between London Gatwick Airport and PDX include:
- Amsterdam Airport Schiphol (AMS)
- Vancouver International Airport (YVR)
- Keflavik International Airport (KEF)
On public transport, you can travel from central London to LGW in about 30 minutes. The terminal is roughly 80 kms (50 miles) away, and getting there by car takes approximately 1 hour 20 minutes.
Want to enjoy an extra night away before boarding your London to PDX flight? Relax in a hotel near London Gatwick Airport before your break officially starts. These stays are expecting you:
69.26% of flights leaving London Gatwick Airport stick to their scheduled arrival time.

Stansted Airport (STN)

You can book a plane ticket from London to Portland International Airport (PDX) out of Stansted Airport (STN) with a stopover. Amsterdam Airport Schiphol (AMS) is a major connection point.
STN is roughly 64 kms (40 miles) from central London. Driving from the city centre to the terminal takes about 1 hour. If you're planning to use public transport, expect a journey time of around 1 hour 25 minutes.
Wake up, take it easy and still make your London to Portland International Airport flight with plenty of time to spare. These hotels near Stansted Airport make departure day a breeze if you're jetting off early:
The on-time performance rate of STN is 64.73%. In other words, that's how frequently flights departing this airport arrive as planned.

About Portland International Airport (PDX)

Have a late flight from London to Portland International Airport? Don't let it hijack your sleep schedule. Stay at one of these hotels near PDX and be in snooze mode sooner:
Grab a Portland International Airport rental car and explore Portland and beyond with your own wheels. Thrifty, Budget and Hertz are popular outlets to choose from here.
To secure the lowest price, book your ride around one week ahead of your London to Portland International Airport flight.
You'll find PDX at 7000 NE Airport Way.

Getting from Portland International Airport (PDX) to central Portland

Central Portland is around 6 miles from Portland International Airport. Journey times by cab or car hire will vary based on time of day and traffic conditions, so do a little research ahead of your trip.
When travelling by public transport, expect a journey time of around 45 minutes.

How to find the cheapest flights from London to Portland International Airport (PDX)

The lowest price we've found for a one-way ticket from London to Portland International Airport is £270. For a return flight on this route, the best price is £392. Depending on when you want to go and the availability, these fares may change.
Booking early is often the key to scoring a cheap flight from London to PDX. Flight prices rise as demand increases, so the closer you get to departure, the more you'll likely spend.
If you have some flexibility with your trip dates, try using the 'Whole month' search tool. It'll give you the lowest price in every month when searching for your London to Portland International Airport ticket.
Never miss a deal on plane tickets from London to PDX by creating a Price Alert. We'll send you an email or notification on the app when fares go down.
Discover the best deal on a flight from London to Portland International Airport with the help of the filters. Choose your preferred departure and arrival times, number of stops and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest.'

The best time to fly from London to Portland International Airport (PDX)

It's time to decide when to book your flight from London to Portland International Airport (PDX). July is the busiest month to travel to Portland. If crowds aren't your thing, think about going in May.
Lock in a London to PDX plane ticket departing in August if you're eager to experience the city during its warmest month. You can expect temperatures in Portland to range from 12ºC (54ºF) to 31ºC (88ºF).
Look for cheap tickets from London to Portland International Airport in December if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 0ºC (32ºF) and 9ºC (48ºF).

More about Portland

When it comes to looking for somewhere to rest your head, you'll find the best stays in Portland right here. Check out these hotels after you've booked your flight from London to Portland International Airport:
Portland Japanese Garden and Voodoo Doughnut are just a couple of the top-rated attractions to add to your Portland to-do list. Keep the adventure rolling by checking out Great Northwest.

Explore more of the United States

Seattle is just one of the many cities in the United States waiting to be discovered once you've taken in the sights of Portland. Around 225 kms (140 miles) away to the north, popular attractions include Pike Place Market, Space Needle and Seattle Skyline.
Around 193 kms (120 miles) north of Portland, Tacoma is another favourite stop in the United States. Experience the best of this destination with a visit to LeMay - America's Car Museum, Chihuly Bridge of Glass and Point Defiance Park.