$2,848 Cheap Scandinavian Airlines flights Boston (BOS) to Reykjavik (KEF)

You can discover cheap return SAS flights from $725 from BOS to KEF by organizing your results from "Price (lowest to highest)" on Expedia. Or look for options from $2,848 for a one-way trip.**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 SAS deals from BOS to KEF often comes down to booking at the right moment. 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 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.

Find SAS's earliest flights from BOS to KEF by checking the "Early Morning" and "Morning" filters. Not only will you get to your destination sooner, early departures are also 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.

A rewarding loyalty program and the ability to rack up points through SAS EuroBonus are the start of the reasons to fly from BOS to KEF with SAS. Plus, when you join Expedia's free One Key™ program, you can receive OneKeyCash™* alongside SAS's loyalty program earnings. It's yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.