$2,074 Cheap Air Canada flights Oslo (OSL) to Washington (IAD)

Grab budget-friendly return Air Canada flights from $561 from OSL to IAD by sorting your results from "Price (lowest to highest)" on Expedia. Or look for bargains from $2,074 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.

Snagging the best Air Canada deals from OSL to IAD often comes down to timing. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. As an added bonus, 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 your departure date.*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.

Sort your results by "Early Morning" and "Morning" to browse the earliest flights from OSL to IAD. Leaving early means flight cancellations are less likely.**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.

Air Canada makes flying from OSL to IAD more enjoyable with an excellent in-flight experience and a 4-star airline rating. You also have the chance to earn points with Air Canada Aeroplan. Make sure you sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.