$735 Cheap Icelandair flights San Francisco (SFO) to Reykjavik (KEF)

View $735 flight on Mon, Jan 5, 2026Opens in a new window

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$735 Cheap Icelandair flights San Francisco (SFO) to Reykjavik (KEF)

Prices were available within the past 7 days and start at $735 for one-way flights and $944 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Tue, Jan 6 - Fri, Jan 16
SFO
San Francisco
KEF
Reykjavik
$944 Roundtrip, just found
$944
Roundtrip
just found
Select Icelandair flight, departing Tue, Jan 6 from San Francisco to Reykjavik, returning Fri, Jan 16, priced at $944 just found
Flights from San Francisco (SFO) to Reykjavik (KEF)
Origin airport
San Francisco Intl.
Destination airport
Keflavik Intl.
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic, WestJet
Popular airline
Icelandair
Distance
4192 mi

Frequently asked questions

How much is an Icelandair flight from San Francisco Intl. Airport (SFO) to Keflavik Intl. Airport (KEF)?
Set the "Price (lowest to highest)" filter on Expedia to search for cheap Icelandair round-trip flights from $944 from SFO to KEF. Affordable one-way fares from $735 are also on offer.**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.
What is the cheapest month to fly from SFO to KEF with Icelandair?
Icelandair flights to Reykjavik are generally cheaper in the off-peak months of January and April. Whether you need a one-way or a return ticket, you could score a better deal then.
What is the cheapest time to book flights from San Francisco Intl. Airport (SFO) to Keflavik Intl. Airport (KEF) with Icelandair?
Check for Icelandair flights from SFO to KEF about one month before you want to go. The most affordable time to reserve an international flight is usually 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. No matter your itinerary or ticket type, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Passengers booking on a Sunday can save 17% on average 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.
Does Icelandair fly nonstop from San Francisco Intl. Airport (SFO) to Keflavik Intl. Airport (KEF)?
Use the "Nonstop" filter when searching for direct Icelandair flights from SFO to KEF. It's also a good way to compare other airlines servicing the same direct trip.
What is the earliest Icelandair flight from SFO to KEF?
To find the earliest departures from SFO to KEF with Icelandair, filter your search by "Early Morning" and "Morning." Booking an early flight generally means you'll experience fewer 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.
What airports does Icelandair fly into in Reykjavik?
Icelandair flights from San Francisco Intl. Airport (SFO) to Reykjavik come in to land at Keflavik Intl. Airport (KEF). This is the main entry point here.
What kind of luggage can I take on an Icelandair flight from San Francisco Intl. Airport (SFO) to Keflavik Intl. Airport (KEF)?
On Icelandair, you can fly standard economy from SFO to KEF with a small personal item and 1 cabin bag. Your carry-on bag should be no larger than 21 inches x 7 inches x 13 inches and weigh under 13 lb. Exceeding these restrictions could lead to additional charges, so check your airline's latest policies before making your booking.
Why fly with Icelandair from SFO to KEF?
Taking off from SFO to KEF with Icelandair means enjoying a variety of perks, including top-tier customer service and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That's in addition to the Icelandair Saga Club points you can earn with Icelandair.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Icelandair flight from San Francisco Intl. Airport (SFO) to Keflavik Intl. Airport (KEF)?
It's usually possible to modify or cancel your flight, although additional charges may apply if your booking was made more than 24 hours ago. Need flexible options? Use Expedia's "No cancel fee" or "Changes included" filter to find flights that won't charge you extra if you need to revise your plans. To update your itinerary, go to "Trips," select your flight and click on "Manage Booking" for further information.

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*Available to One Key members.