Cheap Scandinavian Airlines flights Washington (IAD) to Copenhagen (CPH)

Set the "Price (lowest to highest)" filter on Expedia to find cheap SAS return flights from $425 from IAD to CPH. Affordable one-way fares are available too.**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.

Start your search for SAS flights from IAD to CPH about one month before you want to leave. The cheapest time to book an international flight is usually 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. No matter your itinerary and fare class, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Passengers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**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.

The first SAS flight from IAD to CPH takes off at 5:10PM UTC-5, touching down at 7:15AM UTC+1. If you prefer to head off later in the day, the last SAS flight leaves IAD at 5:10PM UTC-5 and lands at CPH at 7:15AM UTC+1. Flying early is generally a good idea as morning flights are 20% less likely to be canceled.**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.

Offering a rewarding loyalty program, SAS is a top pick for many travelers flying from IAD to CPH. Plus, as a SAS EuroBonus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.