SFO - REK

$374 Find Cheap Flights from San Francisco to Reykjavik

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Reykjavik departing on 3/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Reykjavik

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Reykjavik.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Reykjavik.
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$555
Overall average: $742
Multiple Airlines
Sat 2/28Wed 3/4
SFO - KEF • 1 stop
Cheapest one-way
$374
Typical prices: $612-$702
Multiple Airlines
Sat 3/21
SFO - KEF • 3 stops
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 21% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Reykjavik!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Reykjavik (SFO-REK)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Reykjavik that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Reykjavik

Sat, Feb 28 - Wed, Mar 4
Multiple Airlines Logo
8:58 am - 6:05 am
SFO
-
KEF
13h 07m
1 stop
Multiple Airlines Logo
4:55 pm - 12:28 am
KEF
-
SFO
15h 33m
1 stop
$555Multiple Airlines
Tue, Mar 3 - Mon, Mar 9
Multiple Airlines Logo
8:42 am - 6:15 am
SFO
-
KEF
13h 33m
1 stop
Multiple Airlines Logo
5:00 pm - 10:56 pm
KEF
-
SFO
12h 56m
1 stop
$569Multiple Airlines
Mon, Apr 13 - Fri, Apr 24
Multiple Airlines Logo
9:59 am - 6:15 am
SFO
-
KEF
13h 16m
1 stop
Multiple Airlines Logo
4:50 pm - 11:44 pm
KEF
-
SFO
13h 54m
1 stop
$585Multiple Airlines
Tue, Mar 24 - Wed, Apr 1
Multiple Airlines Logo
8:00 am - 6:15 am
SFO
-
KEF
15h 15m
1 stop
Multiple Airlines Logo
4:50 pm - 10:43 pm
KEF
-
SFO
12h 53m
1 stop
$599Multiple Airlines
Thu, May 14 - Wed, May 27
Multiple Airlines Logo
12:10 pm - 9:25 am
SFO
-
KEF
14h 15m
1 stop
Multiple Airlines Logo
10:40 am - 6:00 pm
KEF
-
SFO
14h 20m
1 stop
$605Multiple Airlines
Wed, May 13 - Sun, May 31
Multiple Airlines Logo
8:23 am - 6:15 am
SFO
-
KEF
14h 52m
1 stop
Multiple Airlines Logo
10:40 am - 3:44 pm
KEF
-
SFO
12h 04m
1 stop
$606Multiple Airlines
Mon, Apr 27 - Thu, May 7
Multiple Airlines Logo
7:00 am - 6:15 am
SFO
-
KEF
16h 15m
1 stop
Multiple Airlines Logo
4:50 pm - 10:28 pm
KEF
-
SFO
12h 38m
1 stop
$607Multiple Airlines
Mon, May 11 - Sat, May 16
Multiple Airlines Logo
2:00 pm - 9:25 am
SFO
-
KEF
12h 25m
1 stop
Multiple Airlines Logo
4:50 pm - 10:48 pm
KEF
-
SFO
12h 58m
1 stop
$645Multiple Airlines
Tue, Mar 24 - Tue, Mar 31
Multiple Airlines Logo
11:13 am - 6:15 am
SFO
-
KEF
12h 02m
1 stop
Multiple Airlines Logo
4:50 pm - 10:27 pm
KEF
-
SFO
12h 37m
1 stop
$647Multiple Airlines
Thu, Apr 16 - Mon, Apr 20
Multiple Airlines Logo
8:00 am - 6:05 am
SFO
-
KEF
15h 05m
1 stop
Multiple Airlines Logo
4:50 pm - 11:29 pm
KEF
-
SFO
13h 39m
1 stop
$648Multiple Airlines
Booking Insights

KAYAK's insights & trends for San Francisco to Reykjavik flights

Get data-powered insights and trends into flights from San Francisco to Reykjavik to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Francisco to Reykjavik?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Reykjavik, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Reykjavik is August, where tickets cost $759 (return) on average. On the other hand, the most expensive months are December and October, where the average cost of round-trip tickets is $1,243 and $1,093 respectively.

How far in advance should I book a flight from San Francisco to Reykjavik?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Reykjavik, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to Reykjavik, you should book around 3 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$374
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from San Francisco to Reykjavik-Keflavik Airport

When to book flights from San Francisco to Reykjavik

Are your dates flexible? Find out the best times to travel from San Francisco to Reykjavik based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Reykjavik

  • What is the cheapest flight from San Francisco to Reykjavik?

    In the last 3 days, the lowest price for a flight from San Francisco to Reykjavik was $374 for a one-way ticket and $555 for a round-trip.

  • Do I need a passport to fly between San Francisco and Reykjavik?

    Yes

  • Which airports will I be using when flying from San Francisco to Reykjavik?

    When flying out of San Francisco you will be using San Francisco. You will be landing at one of these airports: Reykjavik Keflavik Intl or Reykjavik Domestic.

  • Which aircraft models fly most regularly from San Francisco to Reykjavik?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Reykjavik?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between San Francisco and Reykjavik, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Reykjavik from San Francisco?

    Seattle is the most popular layover city among KAYAK users traveling from San Francisco to Reykjavik.

  • Which is the best airline for flights from San Francisco to Reykjavik, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from San Francisco to Reykjavik are Alaska Airlines and Delta. With an average price for the route of $1,151 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $921 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from San Francisco to Reykjavik?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Reykjavik.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Reykjavik?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reykjavik from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Reykjavik?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reykjavik with an airline and back to San Francisco with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Reykjavik?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reykjavik from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from San Francisco to Reykjavik

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Reykjavik. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Reykjavik? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11785 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.1Food
7.0Entertainment
Airline reviews

The Alaska Airlines app made it very difficult to find my boarding pass. It was very frustrating to use! The flight itself was flawless.

8.0 ExcellentMatt, Jan 2026
SFO - PDX
Read more Alaska Airlines reviews

The Alaska Airlines app made it very difficult to find my boarding pass. It was very frustrating to use! The flight itself was flawless.

The flight was excellent and very friendly and helpful staff. Will travel again and recommend to friends. Thank you

Did not have In flight service on my round trip due to turbulence. I did not partake in In flight entertainment. Flight descending into LAX was very turbulent. It would have been nice if the pilot communicated with us during that rough descent into LAX to ease the minds of some of us more nervous flyers.

They canceled my flight with only a couple hours before checking in at the airport and offered no alternatives to get home.

I had entered my TSA pre number when I bought the ticket but TSA pre was not on my boarding pass. I went to find an agent at check in and there was only one agent one duty for first class and a line of people waiting for check in/baggage with no agent manning that area.

Comfort level was below par. Food selection was non-existent. Paying $35 for 1st bag is never appreciated. I will not fly them again. I am actually trying to change my return flight.

The flight attendants were excellent and I was in the back of the plane. Much much better than recent JetBlue experiences on that route and better than Delta on that route.

I’m not sure there is anything that can be improved, even the cost was fantastic.

Poor. They should have given me a row with more room and instead they put me in a middle seat with two strangers next to me

Flight crew and flight were good. But it departed two hours late.

The flight crew where really good. Better then the crew from BNE to SFO

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

left on time, reasonable boarding process arrived early luggage came out quickly

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Flight was good, crew was excellent. No complaints at all

Delayed 3 times in a row for 4 hours total. Incrementally pushing back the flight claiming gate delays but they eventually changed the actual plane, due to technical issues. This strategy to avoid compensation to passengers is unprofessional.

I didn't think about not having the right app for wifi because my connecting flight was with Westjet and when I took off from Seattle I was thinking I would use my wifi, but realized I couldn't on my Westjet app and I did not have Delta's app downloaded.

Plane seating was uncomfortable, very tight fitting for someone my height, did not recline and overall un enjoyable

Horrible! I spend in airport from 9:30 and till 2 am. My flights and connections was delayed, rebooked and after was delayed, I couldn’t get home! I was stuck! The money I paid it’s to much for what I got! 💩 never again flying with your company! Second time booked with you and second time lots of issues. I rather pay 100$ more but be on schedule and time!

Everything was good except for flight delay, but it was because of the snow storm in the arrival airport.

They lost my bag. Hopefully it will be here tomorrow.

No communication from Kayak or West Jet. Booked extra flights, flights cancelled, no one answers calls. Will be disputing charges.

The trip from LAX to Calgary was aboard a 737-700, which is more than twenty years old. Service was fine, and the food was good, but there was no inflight entertainment, and no WiFi. The flight from Calgary to Vancouver was also delayed more than an hour, due to congestion on the Calgary tarmac. And no food service, but there was in-flight WiFi which made a big difference.

Leg room is a problem the plane was dirty and there were no movies available on the app

The flight left late and I didn’t get a glass of bubbly upon boarding (which I’m used to when booking business class on other flights), but otherwise it was a pleasant flight with lovely, helpful crew members and I enjoyed my meal.

Couldn't fit knees, only 1 toilet working, didn't get anything to drink cause the stewards were not able to get to us

Flight was canceled for a reason they knew hours before but did not mention. Next the gate chnage from 37 to 38 at least 10 times. Ridiculous.

The flight from SFO to YVR was delayed and my bag did not make it to my next flight from YVR to SYD. It took almost 3 days after I landed to get my bag and when I got it, it was filled with dust

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

It was a smooth flight both in the sky and landing!

The crew was really nice. The plane seats were kinda small even for a 5’6” / 158 lbs person.

Fare was great, seat comfort the opposite as cushion was worn out. Ok for 2 hour flight, not for 4.5 hour flight..

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

It was too cold in the plane my feet froze

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Everything you need to know for your flight from San Francisco to Reykjavik

Information on your arrival and departure airports