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Cheap Flights from Portland to London starting at S$ 293

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from Portland to London

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.
Cheapest Airlines flying from Portland to London

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Westjet
From S$ 293
Frontier Airlines
From S$ 311
Alaska Airlines
From S$ 317
American Airlines
From S$ 343
Sun Country Airlines
From S$ 358
Delta Air Lines
From S$ 394
KLM
From S$ 394
United Airlines
From S$ 405
Jetblue Airways
From S$ 440
Air Canada
From S$ 460
ANA airlines

Find more flights and airlines

Alternative Routes from Portland to London

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Portland to London.

  • Cheapest
    Westjet
    PDX
    14:00
    14h 5m
    1 transfer
    LHR
    12:05
    Portland International Airport - London Heathrow Airport
    Wed, May 8Westjet
    S$ 293
  • Frontier Airlines
    PDX
    22:00
    29h 0m
    2 transfer
    LGW
    11:00
    Portland International Airport - London Gatwick Airport
    Fri, Apr 5Frontier Airlines
    S$ 311
  • Delta Air Lines
    PDX
    14:15
    15h 0m
    1 transfer
    LCY
    13:15
    Portland International Airport - London City Airport
    Sat, Mar 30Delta Air Lines
    S$ 416
  • Delta Air Lines
    PDX
    14:15
    15h 0m
    1 transfer
    LCY
    13:15
    Portland International Airport - London City Airport
    Sat, Mar 30Delta Air Lines
    S$ 416
    Find More Flights

Frequently Asked Questions

  • When to buy flight tickets from Portland (PDX) to London (LON) the cheapest?

    Airlines adjust prices for flights from Portland to London based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much is a flight from Portland (PDX) to London (LON) cost?

    According to Trip.com's data, the lowest price is around S$ 1,531.
  • How long is a flight from Portland (PDX) to London (LON)?

    It takes about 9 hours 33 minutes to fly from Portland (PDX) to London (LON).
  • What is the transportation method from the main airport to downtown in London?

    • The distance from London Gatwick Airport to downtown is about 39km, by taxi about 50 minutes.
    • The distance from London Heathrow Airport to downtown is about 23km, by taxi about 40 minutes.
    • The distance from London Luton Airport to downtown is about 44km, by taxi about 1 hour.
  • What time does the latest flight from Portland to London depart?

    The latest flight departs from Portland (PDX) at 18:55 and arrives in London (LHR) at 12:20.
  • What are the most popular airlines that fly from Portland (PDX) to London (LON)?

    Airlines with flights from Portland (PDX) to London (LON): American Airlines, Finnair, IBERIA, British Airways and Aer Lingus.
  • What's the most popular airline for direct flights from Portland (PDX) to London (LON)?

    Finnair operates 1 direct flights from Portland (PDX) to London (LON).
  • How many airports in London?

Find cheapest flight ticket from Portland to London

Cheapest direct flight price

S$ 293

Cheapest return ticket price

S$ 817

Cheapest month

April

Peak season for travel

September