Cheap Flights from Portland (PDX) to London (LHR) from £335

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

Prices were available within the past 7 days and starts at £335 for one-way flights and £307 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Finnair
American Airlines
Finnair
British Airways
British Airways
American Airlines
Iberia
Iberia
British Airways
British Airways
Iberia
Iberia
Air Canada
Alaska Airlines
American Airlines
Iberia
United
Finnair
Virgin Atlantic
Alaska Airlines
Flight from Portland to London route information
Origin AirportPortland Intl.
Destination AirportHeathrow
Airlines ServingAer Lingus, Air Canada, Air France, Alaska Airlines, American Airlines, British Airways, Condor, Finnair, Iberia, Icelandair, KLM, SAS, United, Virgin Atlantic
Flight Price£307
Distance7839 km

Frequently asked questions

Compare flights from Portland to London easily and book in confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Portland to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Portland Intl. to Heathrow.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Portland Intl. (PDX) to Heathrow (LHR) 

The easiest way to view the best deals on flights from Portland to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Portland Intl. to Heathrow start at just £307 and range up to £415.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Portland and London
  • booking your flight during February, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Portland to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Portland Intl. to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.