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SFO - KEF

$320 Find cheap flights from San Francisco to Reykjavik-Keflavik Airport

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 7/30. 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
0 bags
Fri 6/7
Fri 6/14

Search hundreds of travel sites at once for deals on flights to Reykjavik-Keflavik Airport

 
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.
In the last 7 days travelers have searched 43,707,506 times on KAYAK, and here is why:

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from San Francisco to Reykjavik (SFO-KEF)

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 and deals for you by selecting your travel dates.
Choose your dates
11:30 am - 6:35 amSFO-KEF
12h 05m1 stop
4:45 pm - 10:56 pmKEF-SFO
13h 11m1 stop
Sun, Jul 14 - Thu, Jul 25
11:59 pm - 4:45 amSFO-KEF
21h 46m2 stops
4:00 pm - 4:54 pmKEF-SFO
31h 54m2 stops
Mon, May 27 - Wed, Jun 5
3:20 pm - 8:15 amSFO-KEF
33h 55m2 stops
9:35 am - 5:18 pmKEF-SFO
14h 43m1 stop
$823WestJet
Find Deal
Thu, Jun 6 - Thu, Jun 13
12:50 pm - 8:15 amSFO-KEF
12h 25m1 stop
9:35 am - 9:20 pmKEF-SFO
18h 45m1 stop
$886WestJet
Find Deal
Mon, Jun 10 - Sat, Jun 15
11:40 am - 8:35 amSFO-KEF
13h 55m1 stop
10:00 am - 9:27 pmKEF-SFO
18h 27m1 stop
$893Air Canada
Find Deal
Mon, Jul 29 - Thu, Aug 8
11:40 am - 8:35 amSFO-KEF
13h 55m1 stop
10:00 am - 11:12 pmKEF-SFO
20h 12m2 stops
$899Air Canada
Find Deal
Sun, Jul 14 - Wed, Jul 24
10:50 pm - 9:50 pmSFO-KEF
16h 00m1 stop
5:00 pm - 10:14 amKEF-SFO
24h 14m1 stop
$959Icelandair
Find Deal
Sun, May 26 - Mon, Jun 3
2:44 pm - 1:25 pmSFO-KEF
15h 41m1 stop
8:05 pm - 9:50 amKEF-SFO
20h 45m1 stop
$960Icelandair
Find Deal
Tue, May 28 - Sun, Jun 9
12:45 am - 8:30 amSFO-KEF
24h 45m2 stops
12:00 pm - 11:06 pmKEF-SFO
18h 06m2 stops
$1,007United Airlines
Find Deal
Sun, Jul 28 - Thu, Aug 8
12:12 am - 8:30 amSFO-KEF
25h 18m1 stop
11:00 am - 6:28 pmKEF-SFO
14h 28m1 stop
$1,012United Airlines
Find Deal
Sat, Jul 13 - Tue, Jul 23

Flights from San Francisco to Reykjavik - Travel Insights & Trends

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’s the cheapest day of the week to fly from San Francisco to Reykjavik-Keflavik Airport?

The average price of all flights from San Francisco to Reykjavik Keflavik Intl Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from San Francisco to Reykjavik-Keflavik Airport, look for departures on Sundays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Reykjavik-Keflavik Airport, Monday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Francisco to Reykjavik Keflavik Intl Airport, 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 Keflavik Intl Airport is February, where tickets cost $868 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $1,305 and $1,133 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Francisco to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from San Francisco to Reykjavik Keflavik Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 55 days before departure.

Which airlines provide the cheapest flights from San Francisco to Reykjavik-Keflavik Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from San Francisco to Reykjavik-Keflavik Airport found on KAYAK was with WestJet for $320. WestJet proposed a round-trip connection from $823 and Air Canada from $893.

Good to know

Low season

January

High season

September

Cheapest flight

$320
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 1% 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 San Francisco to Reykjavik-Keflavik Airport flights

  • Which airline offers environmentally friendly options for flying from San Francisco to Reykjavík?

    By investing in new, fuel-efficient aircraft and putting numerous sustainability programs into place, SAS and Icelandair have been actively working to become more environmentally friendly for flights from San Francisco to Reykjavík.

  • How can I travel to my location from Keflavik International Airport (KEF)?

    From the airport, you can board the “Straetó” bus to travel to Reykjavík and other Icelandic cities. At the airport, taxis are also easily accessible. You can find them right outside the terminal building. This option provides easy access and direct transportation to your location. If having your own vehicle gives you more flexibility, you can rent one from one of the car rental firms located at the airport.

  • Can I upgrade a class for flights from San Francisco to Reykjavík?

    Yes – you can upgrade to a better class on United Airlines, Icelandair, Delta Air Lines, and SAS (Scandinavian Airlines). These airlines enable passengers to upgrade to a higher class, subject to availability, either at the time of booking or closer to the departure date. Additionally, upgrading your ticket to a higher class is possible by using miles or points.

  • Where do flights from San Francisco to Reykjavík's layovers often take place?

    The majority of San Francisco to Reykjavík flights make a stopover at one of the following locations: Copenhagen (CPH) for SAS Airlines, Minneapolis (MSP), New York (JFK) for Delta Air Lines, or Chicago (ORD) for United. If you choose to take a flight with Air Canada, you will make a stop in one of the following cities: Toronto (YYZ), Montreal (YUL), or Vancouver (YVR), and then connect to Reykjavík (KEF).

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

    In the last 3 days, the lowest price for a flight from San Francisco to Reykjavik Keflavik Intl Airport was $320 for a one-way ticket and $806 for a round-trip.

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

    Yes

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from San Francisco to Reykjavik are Delta and JetBlue. With an average price for the route of $966 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $1,382 and an overall rating of 7.6.

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

    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-Keflavik Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reykjavik-Keflavik Airport 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-Keflavik Airport?

    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-Keflavik Airport with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and KEF can sometimes prove cheaper using this method.

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

    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-Keflavik Airport from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from SFO to Reykjavik-Keflavik Airport

  • When you choose to book your flights through Alaska Airlines, which operates from San Francisco International Airport (SFO) as its hub, there are several benefits. You have a great chance of finding a flight that fits conveniently with your travel plans due to the availability of daily flights connecting San Francisco and Reykjavík.
  • Icelandair, United Airlines, Delta Air Lines, and Air Canada provide reservations for passengers with disabilities, particularly those with limited mobility. These airlines offer specialized services to accommodate passengers with impairments, including mobility assistance, priority boarding and disembarking, wheelchair-accessible seating options, and trained staff to assist them during their travel.
  • Airlines such as Icelandair, Delta Air Lines, SAS (Scandinavian Airlines), United Airlines, Alaska Airlines, and Air Canada cater to families traveling with children on flights from San Francisco to Reykjavík. These carriers provide various amenities like children's meals, activity kits, and entertainment options specifically designed to keep young travelers happy and engaged during the journey.
  • There are several airlines that let passengers bring pets on board for flights from San Francisco to Reykjavík, including SAS, Air Canada, Lufthansa United, and Icelandair. Larger animals can be carried in the airplane hold as checked luggage. The pet carrier must be leak-proof and sufficiently ventilated to guarantee the pet's comfort and safety.
  • When traveling from San Francisco to Reykjavík with a considerable amount of luggage, it's recommended to choose an airline with more flexible carry-on baggage policies. For instance, Icelandair permits passengers to carry a personal item and a carry-on bag into the cabin, with a maximum weight limit of 70 lbs. per bag.
See more tips

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
DeltaOverall score based on 10810 reviews
8.0Entertainment
7.9Comfort
8.2Boarding
8.6Crew
7.4Food
Airline reviews

There was a loud squeaky sound the whole time we were flying.

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Honestly, I didn’t expect that I will experience this long time wait during the check in. There was only one person who was taking care of the passengers for the economy class and it took us to wait about one hour to do our check i. As a result we barely get to the airplane as the gate was at the end of the airport. That is totally not professional where one crue is working at the registration desk with economy and 3-4 crues are helping for the business class.

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

You need to be a hacker to get the (Free) WiFi

TERRIBLE! Staff was unfriendly, rude, and demeaning. One flight attendant touched me to grab the complimentary blanket off my neck because I couldn't take it home, while a bunch of other people took theirs home. I have never been so ill treated. I am not happy at all. And flight was delayed, no information until short notice for everything. Lost an entire day at my destination. I expect a full refund for that experience. Never will fly with them EVER again

My return flight has been changed to JFK from EWR without any notice or reason

I upgraded to economy plus and it’s so worth the price. The crew is exceptional and the food is pretty decent. I would definitely fly with them again.

They lost my luggage. Tromso in winter without warm clothes is not fun.

The flight was on time and loading was fine. I really disliked that all drinks other than coffee or tea had a cost. Deplaning was also an issue as people did not wait for those in front of them to get out before they pushed forward

Flight was delayed 3 hours. Pilot cancelled flight under 4 people volunteered to change their seats to economy from business class.

I paid for wifi and it worked about a total of 5 min. Feel ripped off

I couldn’t make it to the airport for my original flight due to bad weather; roads were shut down, buses and trains were closed. Since the plane wasn’t cancelled, I still had to pay $720 to change my ticket.

Overall, this flight team did a fantastic job. They came often with the water, coffee and tea. There was no meal choice in coach, but the lasagna lunch was decent. The sandwich snack just before landing was tasty. The baggage bins were large, so no trouble holding carry on luggage.

My seat was not the one I paid for, the crew was very curt, and the cabin was extremely warm.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

Beverage and food services are excellent. We enjoy paying the extra for economy plus for the 3 inches more leg room to be exact.

Flight was delayed by 3 hours. The pilot made up 1 hour during the flight, but that made the wait at the airport 5 hours once you factor getting there 2 hours early.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Very uncomfortable seats and seat backs, and I am only 5’9”. Delayed due to crew issues, spent a long time with no ventilation. Teeny overhead bins. Wifi worked well. Arrived safely.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

This is not a Business Class equipped airplane and even the crew apologize before take over BUT BUT Air Canada charged full business class fare

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

Due to a strike taking place with the airline, it negatively impacted my flight in multiple ways. My flight was delayed over 2 hours and the food served was mediocre at best.

Cabin crew were great. Seats are criminal for tall people

Flight was delayed 1.5 hrs due to problem with a previous flight to mine; I was informed appropriately via Text & Email, however, website did not keep up with messages sent by nearly an hour. When checking-in warm & friendly reception at check-in desk until female Air Canada Rep noticed my flight number and instantly pivoted to a condescending & sarcastic comments about getting my bag checked in since I’m running so late; then tone instantly changed again few minutes later when she muttered, “Oh, they’ve delayed it” another sign systems & worse front line staff, not fully informed or simply not reading their flight status updates. Flight crew were very friendly & did a great job trying to make up lost time due to the delay.

The fact that I got to Toronto alive and well and safe is a huge plus. I thank the captain and crew for a safe flight The comfort of the aircraft leaves much to be desired. Human beings should not have to be that cramped and squashed on a flight that we pay a lot for and even have to pay for lousy food choices The cabin crew were pleasant and helpful Kudos to them as the flight was packed to capacity and there was a lot of work for them in a short space of time All in all a good experience, but too cramped

We had a good flight, service was good and lots of leg room. Service was good and the staff were friendly.

United force you to download their App to do the check-in.

Short flight, crew members were very nice, so much so I'll take the return flight next weekend

The trip was fine and uneventful. The seat in business class was very uncomfortable which was disappointing given the extra cost. It was spacious but it felt like I was sitting on metal bars. The food in business class wasn't very good. The flight was ahead of time, the staff was professional and courteous and our luggage arrived safely.

Book cheap flights from San Francisco to Reykjavik

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to Reykjavik found on KAYAK in the last 72 hours.
7/30Tue
2 stopsWestJet
33h 55mSFO-KEF
$320
6/1Sat
2 stops
35h 53mSFO-KEF
$344
7/8Mon
1 stopWestJet
17h 45mSFO-KEF
$359
6/5Wed
1 stopIcelandair
11h 31mSFO-KEF
$584
7/21Sun
1 stopIcelandair
17h 25mSFO-KEF
$598
7/7Sun
2 stopsUnited Airlines
24h 45mSFO-KEF
$655
8/1Thu
2 stopsUnited Airlines
24h 45mSFO-KEF
$660
7/20Sat
1 stopDelta
23h 14mSFO-KEF
$671
7/2Tue
2 stopsAir Canada
18h 35mSFO-KEF
$912
6/4Tue
1 stopDelta
23h 18mSFO-KEF
$936

Search by stops

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Last minute flights from San Francisco to Reykjavik

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from San Francisco to Reykjavik that are departing in the next 10 days.
5/8Wed
multi-stop
16h 25mSFO-KEF
5/15Wed
multi-stop
19h 29mKEF-SFO
$1,215
5/8Wed
multi-stop
21h 00mSFO-KEF
5/15Wed
multi-stop
14h 03mKEF-SFO
$1,252
5/11Sat
multi-stop
33h 27mSFO-KEF
5/13Mon
multi-stop
42h 38mKEF-SFO
$1,277
5/8Wed
multi-stopIcelandair
11h 55mSFO-KEF
5/15Wed
multi-stopIcelandair
22h 05mKEF-SFO
$1,335
5/11Sat
multi-stopJetBlue
15h 23mSFO-KEF
5/13Mon
multi-stopJetBlue
14h 46mKEF-SFO
$1,372
5/8Wed
multi-stopTurkish Airlines
65h 15mSFO-KEF
5/15Wed
multi-stopTurkish Airlines
31h 30mKEF-SFO
$1,636
5/8Wed
multi-stop
33h 50mSFO-KEF
5/14Tue
multi-stop
30h 07mKEF-SFO
$1,700
5/11Sat
multi-stop
34h 30mSFO-KEF
5/13Mon
multi-stop
35h 08mKEF-SFO
$1,742
5/8Wed
multi-stopScandinavian Airlines
33h 45mSFO-KEF
5/15Wed
multi-stopScandinavian Airlines
35h 45mKEF-SFO
$2,191
5/8Wed
multi-stopScandinavian Airlines
33h 45mSFO-KEF
5/15Wed
multi-stopScandinavian Airlines
36h 20mKEF-SFO
$2,193

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San Francisco - Reykjavik-Keflavik Airport Flights

Departure:

San Francisco (undefined)United States

Destination:

Reykjavik-Keflavik Airport (KEF)Iceland

Return flight deals:

Reykjavik-Keflavik Airport - San Francisco

Cabin classes: