$554 Cheap Delta flights San Francisco (SFO) to Reykjavik (KEF)

You can find affordable round-trip Delta Air Lines flights from $547 from SFO to KEF by filtering your results from “Price (lowest to highest)” on Expedia. Or search for deals from $554 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.

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

Start your search for Delta Air Lines flights from SFO to KEF about one month before you want to leave. The most affordable 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. Regardless of fare class or itinerary, the best day of the week to book international airfare is usually Sunday. Friday can be the most expensive. Travelers 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.

To find out if there’s a direct trip from SFO to KEF with Delta Air Lines or another carrier, check the “Nonstop” filter when searching for tickets.

Filter your results by “Morning” and “Early Morning” to find the earliest flights from SFO to KEF. Setting off early means you’re 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 San Francisco Intl. Airport (SFO) to Reykjavik come in to Keflavik Intl. Airport (KEF). This is the main gateway here.

Delta Air Lines makes flying from SFO to KEF enjoyable with an excellent in-flight experience and a rewarding loyalty program. You also have the chance to earn points with Delta SkyMiles. Remember to join Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

It’s usually possible to cancel or reschedule your flight, although there may be a charge if you made your booking over 24 hours ago. Prefer to keep your options open? Make use of Expedia’s “No cancel fee” or “Changes included” filter to find flights that won’t penalize you if you need to revise your plans. To modify your itinerary, head to “Trips,” select your flight and click on “Manage Booking” for more information.