$2,148 Cheap Scandinavian Airlines flights Boston (BOS) to Copenhagen (CPH)

Set the "Price (lowest to highest)" filter on Expedia to search for cheap SAS return flights from $404 from BOS to CPH. Affordable one-way options from $2,148 are also available.**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.

Scoring the best SAS deals from BOS to CPH 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. To top it off, you can pocket 17% on average by buying your fare on a Sunday rather than a Friday, which is often the most expensive day to book.* It's a good idea to start searching for flights about one month before your travel dates.*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 flight from BOS to CPH with SAS leaves at 5:45PM UTC-5. You'll land at 7:10AM UTC+1. The last SAS flight of the day takes off at 5:45PM UTC-5 and arrives at 7:10AM UTC+1. With 20% fewer cancellations for early and mid-morning departures, jetting out early is typically the smartest option.**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 popular choice for many travelers departing from BOS to CPH. Plus, as a SAS EuroBonus and One Key™ member booking through Expedia, you could 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.