$413 Cheap Delta flights Portland (PDX) to London (LHR)

Grab budget-friendly return Delta Air Lines flights from $638 from PDX to LHR by sorting your results from “Price (lowest to highest)” on Expedia. Or look for deals from $413 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for one-way or return flights to London in January or February. You could find cheaper fares with Delta Air Lines during these off-peak travel months.

Landing the best Delta Air Lines deals from PDX to LHR often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. Better still, you can pocket 17% on average by buying your tickets on a Sunday rather than a Friday, which is usually the most expensive day to book.* It’s smart to kick off your flight search about one month before you plan to travel.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To figure out if there’s a direct route from PDX to LHR with Delta Air Lines or any other carriers, select the “Nonstop” filter when searching for tickets.

Filter your results by “Early Morning” and “Morning” to see the earliest departures from PDX to LHR. Heading off early means you’re 20% less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Delta Air Lines flights from Portland Intl. Airport (PDX) to London come in to land at Heathrow Airport (LHR). This is the main entry point to this city.

Delta Air Lines makes flying from PDX to LHR enjoyable with a rewarding loyalty program and an excellent in-flight experience. You may even earn points with Delta SkyMiles. Don’t forget to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of booking, but your airline may add a charge after that time. For more details about altering your flights, head to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to adjust your plans without being charged, check the “Changes included” or “No cancel fee” filter when planning your next escape.