Cheap Flights from Portland to London Heathrow from 530 €

Compare Portland to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Portland to London Heathrow

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

London.530 € per passenger.Departing Wed, 5 Nov, returning Wed, 19 Nov.Return flight with Iberia.Outbound direct flight with Iberia departs from Portland on Wed, 5 Nov, arriving in London Heathrow.Inbound direct flight with Iberia departs from London Heathrow on Wed, 19 Nov, arriving in Portland.Price includes taxes and charges.From 530 €, select.

London.532 € per passenger.Departing Mon, 5 May, returning Wed, 21 May.Return flight with Iberia.Outbound direct flight with Iberia departs from Portland on Mon, 5 May, arriving in London Heathrow.Inbound direct flight with Iberia departs from London Heathrow on Wed, 21 May, arriving in Portland.Price includes taxes and charges.From 532 €, select.

London.535 € per passenger.Departing Sun, 26 Oct, returning Thu, 6 Nov.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Portland on Sun, 26 Oct, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Thu, 6 Nov, arriving in Portland.Price includes taxes and charges.From 535 €, select.

London.536 € per passenger.Departing Mon, 28 Apr, returning Wed, 14 May.Return flight with Iberia.Outbound direct flight with Iberia departs from Portland on Mon, 28 Apr, arriving in London Heathrow.Inbound direct flight with Iberia departs from London Heathrow on Wed, 14 May, arriving in Portland.Price includes taxes and charges.From 536 €, select.

London.536 € per passenger.Departing Wed, 24 Sep, returning Thu, 2 Oct.Return flight with Iberia.Outbound direct flight with Iberia departs from Portland on Wed, 24 Sep, arriving in London Heathrow.Inbound direct flight with Iberia departs from London Heathrow on Thu, 2 Oct, arriving in Portland.Price includes taxes and charges.From 536 €, select.

London.540 € per passenger.Departing Tue, 14 Oct, returning Tue, 21 Oct.Return flight with Iberia.Outbound direct flight with Iberia departs from Portland on Tue, 14 Oct, arriving in London Heathrow.Inbound direct flight with Iberia departs from London Heathrow on Tue, 21 Oct, arriving in Portland.Price includes taxes and charges.From 540 €, select.

London.540 € per passenger.Departing Sun, 30 Nov, returning Wed, 10 Dec.Return flight with Iberia.Outbound direct flight with Iberia departs from Portland on Sun, 30 Nov, arriving in London Heathrow.Inbound direct flight with Iberia departs from London Heathrow on Wed, 10 Dec, arriving in Portland.Price includes taxes and charges.From 540 €, select.

London.540 € per passenger.Departing Wed, 8 Oct, returning Tue, 14 Oct.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Portland on Wed, 8 Oct, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Tue, 14 Oct, arriving in Portland.Price includes taxes and charges.From 540 €, select.

Find the cheapest month to fly from Portland to London Heathrow

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

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Direct flights from Portland to London Heathrow

Portland to London Heathrow: Alternative routes

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

Portland to London: Flight information

The things to know before you go.

Cheapest flight found	530 €
Cheapest month to fly	November
Average flight time	9 hrs, 38 mins
Most popular airline	Aer Lingus
Average flights per week	42

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

How much are return flights from Portland to London Heathrow?

The best price we found for a return flight from Portland to London Heathrow is 530 €. 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 Portland to London Heathrow?

9 hours and 38 minutes is the average flight time from Portland to London Heathrow.

Which airlines fly direct from Portland to London Heathrow?

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

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

As of April 2025, there are 42 flights per week flying from Portland to London Heathrow.

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

The cheapest month to fly from Portland to London Heathrow is usually April 2025.

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

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to London Heathrow Airport on Wednesday, 5 November 2025.

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

Yes – the average flight time is 9 hours and 38 minutes.

How can I find the best flight deal to London Heathrow?

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 London Heathrow 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 London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Portland Airport to London Heathrow with?

Currently, Iberia offers the cheapest flight tickets to London Heathrow.

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

9 hours 36 minutes is the average duration of a direct flight from Portland International Airport to London Heathrow Airport. London is 7 hours ahead of Portland and is in the UTC+0 timezone.
Take your pick of 8 weekly flights from Portland International Airport to London Heathrow Airport. The 14:20 departure with British Airways is the earliest you can take from PDX to LHR. British Airways operates the latest service of the day at 19:40 if early starts aren't your thing.
Flying during a popular month such as July? School holidays and other popular periods can mean longer queues at security. Be extra cautious and arrive up to four hours ahead of an international flight and two hours before a domestic departure.
British Airways has direct flights from Portland International Airport to London Heathrow Airport. Book with this popular carrier, then get ready to take in the sights in London — and maybe even more of United Kingdom if your schedule allows.
If you want to break up your flight from Portland International Airport to London Heathrow Airport, consider adding a stopover. Just uncheck 'Direct flights only' and find a city that appeals to you. The top stopovers on the PDX - LHR route include:
- Seattle-Tacoma International Airport
- Amsterdam Airport Schiphol
- Denver International Airport

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

246 € is the best price for a one-way ticket from Portland International Airport to London Heathrow Airport. Return flights start at 530 €. These prices may change depending on availability and demand.
Book 11 months before you want to fly. After crunching the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from PDX to LHR.
Plan your trip for July. That's the cheapest month for tickets from Portland International Airport to London Heathrow Airport. If you're flexible on when you fly, use the 'Whole month' tool to find the lowest airfare across every month.
Finding a cheap ticket from PDX to LHR is straightforward with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch when there's a better deal.
Use filters to tailor your flights from Portland International Airport to London Heathrow Airport. Select your preferred arrival and departure times, number of stops and airlines. Alternatively, sort your results by 'Cheapest' to find the best deals.

Handy information about Portland International Airport (PDX)

Portland International Airport is about 19 kilometres from central Portland. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 19 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the trip time to be around 45 minutes.
Want a handy hotel near PDX? If you're catching an early flight from Portland International Airport to London Heathrow Airport, these stays will have you sleeping moments from check-in:

Arriving at London Heathrow Airport (LHR)

The last thing you want is a lengthy journey to your hotel if you're landing late on a flight from Portland International Airport to London Heathrow Airport. Book one of these accommodation options near LHR instead:

Getting from London Heathrow Airport (LHR) to central London

London Heathrow Airport is approximately 31 kilometres from central London. With your own car rental or in a cab, the drive is about 57 minutes.
If you're using public transport, expect a journey of about 1 hour and 1 minute.

When to fly to London Heathrow Airport (LHR)

July is the busiest month for flights from Portland International Airport to London Heathrow Airport. To avoid the crowds, head to London in February.
Lock in your flight from Portland International Airport to London Heathrow Airport for July if you'd like to visit London during its warmest month. You can expect temperatures of between 11ºC and 26ºC.
January has average temperatures of between 0ºC and 9ºC. Search for cheap tickets from PDX to LHR sometime around then if you'd rather travel in cooler conditions.

More about London

Start your London trip right by finding a fantastic place to stay. As soon as you've booked your flight from PDX to LHR, explore our range of accommodation options including:
All great journeys should include a little sightseeing. Big Ben, The British Museum and Buckingham Palace are must-visits when exploring London.

Complete your London trip with hotels and a car rental

You've got your cheap ticket to London Heathrow Airport — now it's time to find a great place to stay, and perhaps even your own set of wheels. We've compared prices across hundreds of companies to bring you the best hotels and car rental deals in London.