KEF - SFO

$329 Find Cheap Flights from Reykjavik to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reykjavik to San Francisco departing on 9/1. 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 San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Reykjavik to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Reykjavik to San Francisco, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$605
WestJet
Tue 8/11Tue 8/18
KEF - SFO • 1 stop
Cheapest one-way
$329
WestJet
Tue 9/1
KEF - SFO • 1 stop
Top airlines
Cheapest • from $605 (round-trip)
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Reykjavik and San Francisco. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $971 (round-trip)
Shortest trip • 12h 34m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reykjavik to San Francisco 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 Reykjavik to San Francisco

Tue, Aug 11 - Tue, Aug 18
WestJet Logo
9:00 am - 9:55 pm
KEF
-
SFO
19h 55m
1 stop
WestJet Logo
6:00 am - 7:40 am
SFO
-
KEF
18h 40m
1 stop
$605WestJet
Thu, Aug 20 - Wed, Sep 2
WestJet Logo
9:00 am - 9:55 pm
KEF
-
SFO
19h 55m
1 stop
WestJet Logo
1:00 pm - 7:40 am
SFO
-
KEF
11h 40m
1 stop
$667WestJet
Thu, Aug 20 - Wed, Sep 2
WestJet Logo
9:00 am - 9:55 pm
KEF
-
SFO
19h 55m
1 stop
WestJet Logo
1:00 pm - 7:40 am
SFO
-
KEF
11h 40m
1 stop
$674WestJet
Thu, Aug 20 - Wed, Sep 2
WestJet Logo
9:00 am - 9:55 pm
KEF
-
SFO
19h 55m
1 stop
WestJet Logo
1:00 pm - 7:40 am
SFO
-
KEF
11h 40m
1 stop
$680WestJet
Fri, Jul 17 - Sat, Aug 1
Multiple Airlines Logo
9:00 am - 12:00 pm
KEF
-
SFO
34h 00m
1 stop
Multiple Airlines Logo
8:28 pm - 9:00 am
SFO
-
KEF
29h 32m
1 stop
$682Multiple Airlines
Thu, Aug 20 - Wed, Sep 2
Multiple Airlines Logo
9:00 am - 9:55 pm
KEF
-
SFO
19h 55m
1 stop
Multiple Airlines Logo
7:00 am - 9:00 am
SFO
-
KEF
19h 00m
1 stop
$694Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
WestJet Logo
9:00 am - 4:40 pm
KEF
-
SFO
14h 40m
1 stop
WestJet Logo
6:00 am - 7:40 am
SFO
-
KEF
18h 40m
1 stop
$695WestJet
Thu, Aug 20 - Wed, Sep 2
Multiple Airlines Logo
9:00 am - 9:55 pm
KEF
-
SFO
19h 55m
1 stop
Multiple Airlines Logo
6:45 pm - 7:40 am
SFO
-
KEF
29h 55m
2 stops
$703Multiple Airlines
Thu, Jul 23 - Sun, Jul 26
Multiple Airlines Logo
9:00 am - 4:40 pm
KEF
-
SFO
14h 40m
1 stop
Multiple Airlines Logo
7:03 am - 9:00 am
SFO
-
KEF
18h 57m
1 stop
$709Multiple Airlines
Thu, Aug 20 - Wed, Sep 2
Multiple Airlines Logo
9:00 am - 9:55 pm
KEF
-
SFO
19h 55m
1 stop
Multiple Airlines Logo
6:45 pm - 7:40 am
SFO
-
KEF
29h 55m
2 stops
$717Multiple Airlines
Booking Insights

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

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

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

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Reykjavik to San Francisco were found on WestJet ($605) and Icelandair ($898).

Good to know

Cheapest flight$329
Flight from Reykjavik to San Francisco

When to book flights from Reykjavik to San Francisco

Are your dates flexible? Find out the best times to travel from Reykjavik to San Francisco 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 Reykjavik to San Francisco flights

  • What are the popular layovers for flights from Reykjavik and San Francisco?

    The Reykjavik to San Francisco route is a long-haul journey, and most airlines, including Delta and Lufthansa, have one, two, or three stops in major cities. The layover city and duration depend on your airline. Consider checking the flight route before booking to know the journey to expect. Some common layover cities include Portland, Vancouver, Minneapolis, Seattle, Chicago, Denver, Detroit, Toronto, Washington, Montreal, Raleigh, Boston, Baltimore, Dublin, New York, Amsterdam, Orlando, London, and Copenhagen.

  • Which airlines fly sustainably from Reykjavik to San Francisco?

    SWISS offers an eco-friendly journey from Reykjavik to San Francisco. This airline uses sustainable aviation fuels to offset carbon emissions by 80%. In addition, the company has ensured noise reduction by implementing modern aircraft to reduce environmental problems. Austrian Airlines also focuses on achieving net zero by 2050 using fuel-efficient aircraft.

  • How can I travel to downtown San Francisco from San Francisco International Airport?

    The Yellow-N and Red-N trains depart every 15 minutes and arrive downtown in approximately 36 minutes. Another option is the Line 292 bus that gets you downtown in around 1h 14min. If you need a quick journey, a taxi, shuttle, or town car can get you to the city in about 17 minutes. You can also rent a car at the airport and enjoy freedom while driving to your destination.

  • Which airline has the most favorable carry-on policy on flights from Reykjavik to San Francisco?

    Most airlines, including Icelandair, SWISS, Austrian Airlines, and Lufthansa, have varying carry-on requirements on the Reykjavik to San Francisco route. All airlines recommend passengers to bring luggage that fits beneath the seat or in the overhead bin to ensure all passengers have a comfortable flight. Delta's carry-on requirements are the most favorable on this route.

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

    In the last 5 days, the lowest price for a flight from Reykjavik Keflavik Intl Airport to San Francisco was $329 for a one-way ticket and $605 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Reykjavik and on arrival in San Francisco.

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

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

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

    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 Reykjavik to San Francisco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Reykjavik 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 Reykjavik to San Francisco?

    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 San Francisco with an airline and back to Reykjavik with another airline. Booking your flights between Reykjavik and SFO 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 Reykjavik to San Francisco?

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

KAYAK’s top tips for finding a cheap flight from Reykjavik Keflavik Intl Airport to San Francisco

  • Austrian Airlines offer special meals to passengers to meet their religious or health needs. If you need a special meal on cheap flights from Reykjavik to San Francisco, these airlines recommend you order when booking the flight or at least 24 hours before departure.
  • Keflavik International Airport (KEF) is a hub for Icelandair, which serves over a hundred destinations. At the same time, San Francisco International Airport (SFO) is a hub for Alaska Airlines and United Airlines. This airport is a gateway to many European and Asian destinations.
  • Flybus Iceland bus provides convenient public transport from downtown Reykjavik to KEF airport. These buses depart hourly to arrive at the airport in about 55 minutes. Other alternatives include a shuttle, town car, or taxi, and the trip takes approximately 55 minutes.
  • You can upgrade to business class if you need a smooth journey using cheap flights from Reykjavik to San Francisco. Amenities when flying business class include additional luggage allowance, noise-canceling headphones, and complimentary meals and drinks.
  • The Icelandair Saga Lounge is a departure lounge at KEF airport where you can relax and recharge as you wait for flight departure. To access the lounge, you must be a cardholder or have a boarding pass for a flight operated by Icelandair.

Reviews of the top airline flying from Reykjavik to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Reykjavik to San Francisco. 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 Reykjavik to San Francisco? 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.
7.0
IcelandairOverall score based on 692 reviews
8.0Crew
7.2Boarding
6.9Entertainment
6.9Comfort
6.2Food
Airline reviews

We paid for saga class, which is the business class for international. My seat was broken and did not recline and my monitor for in-flight entertainment was broken.

2.0 Mediocre3J, Jun 2026
KEF - DEN
Read more Icelandair reviews

We paid for saga class, which is the business class for international. My seat was broken and did not recline and my monitor for in-flight entertainment was broken.

The flight itself was fine, even with a one-hour delay leaving on the Reykjavik tarmac (the lost time was made up during flight). Our experience at the Reykjavik airport on arrival was terrible due mostly to the one hour it took for passport control. Only two stations were open for our category, and the room was full with a huge crowd.

Awful. The Iceland airport was a complete mess. Boarding was a chaotic, the seats were awful, there was a group of rowdy 20 something men in our row hooting and hollering, ordering alcoholic drink after drink. Yelling and laughing at the top of their lungs and the crew just went along with it. Passengers complained to the men, asking if they could keep it down (it was a night time flight so people wanted to sleep). They never listened crew continued to laugh with them, flirt with them and serve them more drinks. No free food or snacks, seats were horribly uncomfortable. Worst flight I've had in a long time

At least one soda free, felt like I was nickeled to death.

Friendly flight crew. Airplane (757) configured as a domestic flight (no lie-flat seats) & no advanced meal selection.

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

The most uncomfortable seat i’ve ever had on a flight

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

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

Information on your arrival and departure airports