Find flights
Deals
Insights
When to book
FAQs & Tips

KEF - SFO

$301 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 6/13. 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
Tue 6/11
Tue 6/18

Search 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
In the last 7 days travelers have searched 42,369,914 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

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

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
9:35 am - 2:34 pmKEF-SFO
35h 59m2 stops
3:20 pm - 8:15 amSFO-KEF
33h 55m2 stops
$562WestJet
Find Deal
Tue, Jun 11 - Tue, Jun 18
9:35 am - 5:18 pmKEF-SFO
14h 43m1 stop
3:20 pm - 8:15 amSFO-KEF
33h 55m2 stops
$572WestJet
Find Deal
Tue, Jun 11 - Tue, Jun 18
9:35 am - 2:34 pmKEF-SFO
35h 59m2 stops
3:20 pm - 4:35 amSFO-KEF
30h 15m3 stops
Tue, Jun 11 - Tue, Jun 18
10:00 am - 7:57 pmKEF-SFO
16h 57m1 stop
12:15 pm - 8:35 amSFO-KEF
13h 20m1 stop
$818Air Canada
Find Deal
Thu, Jun 20 - Thu, Jun 27
12:25 am - 7:55 pmKEF-SFO
26h 30m1 stop
12:15 pm - 8:35 amSFO-KEF
13h 20m1 stop
Wed, Jun 19 - Thu, Jun 27
10:00 am - 11:21 pmKEF-SFO
20h 21m2 stops
12:15 pm - 8:35 amSFO-KEF
13h 20m1 stop
$824Air Canada
Find Deal
Thu, Jun 20 - Thu, Jun 27
10:00 am - 9:23 amKEF-SFO
30h 23m2 stops
9:00 am - 8:35 amSFO-KEF
16h 35m2 stops
Thu, Jun 20 - Thu, Jun 27
12:25 am - 2:20 pmKEF-SFO
20h 55m2 stops
12:15 pm - 8:35 amSFO-KEF
13h 20m1 stop
Wed, Jun 19 - Thu, Jun 27
9:30 am - 12:11 amKEF-SFO
21h 41m1 stop
12:07 am - 7:00 amSFO-KEF
23h 53m1 stop
$1,143Delta
Find Deal
Thu, Jun 20 - Wed, Jun 26
12:00 pm - 7:00 pmKEF-SFO
14h 00m1 stop
1:10 am - 8:30 amSFO-KEF
24h 20m1 stop
$5,228United Airlines
Find Deal
Tue, Jun 11 - Mon, Jun 17

Flights from Reykjavik to San Francisco - Travel Insights & Trends

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.

What’s the cheapest day of the week to fly from Reykjavik to San Francisco?

The average price of all flights from Reykjavik Keflavik Intl Airport to San Francisco clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to San Francisco on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Reykjavik to San Francisco. For your return ticket, we recommend flying on a Sunday and avoiding Thursdays for the best deals.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on WestJet ($301) and Icelandair ($508). The cheapest round-trip tickets were found on WestJet ($562) and Air Canada ($818).

Good to know

Low season

December

High season

July

Cheapest flight

$301
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 21% increase in price.
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 3 days, the lowest price for a flight from Reykjavik Keflavik Intl Airport to San Francisco was $301 for a one-way ticket and $562 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.

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

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

See more FAQs

Top tips for finding a cheap flight from KEF 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.
See more tips

Book cheap flights from Reykjavik to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Reykjavik to San Francisco found on KAYAK in the last 72 hours.
6/13Thu
2 stopsWestJet
35h 59mKEF-SFO
$301
6/13Thu
1 stopWestJet
14h 43mKEF-SFO
$312
6/13Thu
3 stopsWestJet
35h 59mKEF-SFO
$337
7/16Tue
3 stops
32h 58mKEF-SFO
$443
7/16Tue
2 stops
27h 30mKEF-SFO
$479
6/13Thu
1 stopIcelandair
12h 17mKEF-SFO
$508
7/9Tue
1 stopWestJet
33h 25mKEF-SFO
$553
6/13Thu
2 stopsFinnair
35h 30mKEF-SFO
$718
7/13Sat
2 stopsBritish Airways
27h 57mKEF-SFO
$1,046
7/6Sat
1 stopIcelandair
14h 31mKEF-SFO
$1,914

Search by stops

Search by airline

Search by price

Reykjavik - San Francisco Flights

Departure:

Reykjavik (undefined)Iceland

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Reykjavik

Cabin classes: