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Cheap Flights from Reykjavik to San Francisco

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Compare Reykjavik Keflavik to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

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Flight deals from Reykjavik Keflavik to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Reykjavik Keflavik to San Francisco International? Find the lowest prices on one-way and return tickets right here.
San Francisco.$854 per passenger.Departing Mon, 14 Apr, returning Tue, 29 Apr.Return flight with Fly Play and Alaska Airlines.Outbound indirect flight with Fly Play, departs from Reykjavik Keflavik on Mon, 14 Apr, arriving in San Francisco International.Inbound indirect flight with Alaska Airlines, departs from San Francisco International on Tue, 29 Apr, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $854, select.
San Francisco.$934 per passenger.Departing Sat, 13 Sep, returning Sun, 21 Sep.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Reykjavik Keflavik on Sat, 13 Sep, arriving in San Francisco International.Inbound indirect flight with Scandinavian Airlines, departs from San Francisco International on Sun, 21 Sep, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $934, select.
San Francisco.$974 per passenger.Departing Mon, 5 May, returning Mon, 12 May.Return flight with Fly Play and Alaska Airlines.Outbound indirect flight with Fly Play, departs from Reykjavik Keflavik on Mon, 5 May, arriving in San Francisco International.Inbound indirect flight with Alaska Airlines, departs from San Francisco International on Mon, 12 May, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $974, select.
San Francisco.$1,075 per passenger.Departing Tue, 1 Jul, returning Tue, 8 Jul.Return flight with Fly Play and Alaska Airlines.Outbound indirect flight with Fly Play, departs from Reykjavik Keflavik on Tue, 1 Jul, arriving in San Francisco International.Inbound indirect flight with Alaska Airlines, departs from San Francisco International on Tue, 8 Jul, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $1,075, select.
San Francisco.$1,167 per passenger.Departing Mon, 2 Jun, returning Sun, 22 Jun.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Reykjavik Keflavik on Mon, 2 Jun, arriving in San Francisco International.Inbound indirect flight with WestJet, departs from San Francisco International on Sun, 22 Jun, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $1,167, select.
San Francisco.$1,445 per passenger.Departing Wed, 26 Mar, returning Wed, 2 Apr.Return flight with Fly Play and Alaska Airlines.Outbound indirect flight with Fly Play, departs from Reykjavik Keflavik on Wed, 26 Mar, arriving in San Francisco International.Inbound indirect flight with Alaska Airlines, departs from San Francisco International on Wed, 2 Apr, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $1,445, select.
San Francisco.$1,641 per passenger.Departing Fri, 12 Dec, returning Sun, 21 Dec.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Reykjavik Keflavik on Fri, 12 Dec, arriving in San Francisco International.Inbound indirect flight with British Airways, departs from San Francisco International on Sun, 21 Dec, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $1,641, select.
San Francisco.$1,855 per passenger.Departing Wed, 13 Aug, returning Fri, 19 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Reykjavik Keflavik on Wed, 13 Aug, arriving in San Francisco International.Inbound indirect flight with Icelandair, departs from San Francisco International on Fri, 19 Dec, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $1,855, select.

Find the cheapest month to fly from Reykjavik Keflavik to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Reykjavik Keflavik to San Francisco International flights are currently cheapest in April.
Mar
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Apr
from $854
May
from $974
Jun
from $1,167
Jul
from $1,075
Aug
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Sep
from $934
Oct
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Nov
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Dec
from $1,641
Jan
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Feb
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Reykjavik Keflavik to San Francisco International: Alternative routes

Compare routes from Reykjavik Keflavik to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Reykjavik to San Francisco: Flight information

The things to know before you go.
Cheapest flight found$854
Cheapest month to flyApril

Finding cheap flights from Reykjavik Keflavik to San Francisco International: Frequently asked questions

The best price we found for a return flight from Reykjavik Keflavik to San Francisco International is $854. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Reykjavik Keflavik to San Francisco International. But we found flights with one or more stops from $854.
As of March 2025, there are no flights flying from Reykjavik Keflavik to San Francisco International.
The cheapest month to fly from Reykjavik Keflavik to San Francisco International is usually March 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Reykjavik Keflavik Airport to San Francisco International Airport on Monday, 14 April 2025.
No airlines currently offer direct flights between Reykjavik Keflavik Airport and San Francisco International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Fly Play offers the cheapest flight tickets to San Francisco International.

Travelling from Keflavik International Airport (KEF) to San Francisco International Airport (SFO): what you need to know

  • Travelling during a peak month like July? Popular periods (like summer, Christmas and New Year) can add another hour at security. Be extra cautious and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • We make it simple to get a flight with a stopover. To see all the options for flights from Keflavik International Airport to San Francisco International Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to explore your chosen city. Some popular stopovers between KEF and SFO are:

    • Denver International Airport

    • Seattle-Tacoma International Airport

    • Portland International Airport

  • To see if you need a visa to enter United States, contact your airline and the local embassy or consulate. They'll provide you with the latest information, including additional travel documents you may need after booking your cheap ticket from KEF to SFO.

How to find the cheapest flights from Keflavik International Airport (KEF) to San Francisco International Airport (SFO)

  • The lowest price we've found for a one-way ticket from Keflavik International Airport to San Francisco International Airport is $351. For a return flight on this route, the best price is $854. Depending on the availability and when you book, these fares may change.

  • It's usually best to book ahead of time if you're hoping to get cheap flight tickets from KEF to SFO. That's because airlines change prices based on demand, which tends to rise closer to departure.

  • If you're willing to be flexible with your travel dates, try using the 'Whole month' search function. It'll find the cheapest price in every month when searching for your ticket from Keflavik International Airport to San Francisco International Airport.

  • Finding a cheap ticket from KEF to SFO is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Use filters to find the right journey for you. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Keflavik International Airport to San Francisco International Airport, use the 'Sort by' tool. You can also filter by arrival and departure times, airline, and number of stops.

Handy information about Keflavik International Airport (KEF)

  • Keflavik International Airport is about 48 kilometres from central Reykjavik. If you're ride-sharing, driving or catching a cab from the centre, it'll take you 49 minutes or so to get there, depending on traffic conditions. If you're planning to take public transport, expect the journey time to be around 1 hour and 13 minutes.

  • Got an early flight from Keflavik International Airport to San Francisco International Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra snooze time) by choosing one of these stays near KEF:

Arriving at San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • San Francisco International Airport to the centre of San Francisco is around 20 minutes by car. It's approximately 21 kilometres away. Find out what options are available, such as cabs, car rentals or ride-sharing.

  • Getting there by public transport typically takes 47 minutes.

When to fly to San Francisco International Airport (SFO)

  • August is the busiest month for flights from Keflavik International Airport to San Francisco International Airport. To escape the crowds, head to San Francisco in February.

  • Lock in your flight from Keflavik International Airport to San Francisco International Airport for September if you'd like to go to San Francisco during its warmest month. You can expect temperatures of between 12ºC and 22ºC.

  • Look for cheap flight tickets from KEF to SFO in January if you like cooler conditions. Temperatures are at their lowest then, ranging between 6ºC and 16ºC on average.

More about San Francisco

  • As soon as you've booked your flights from KEF to SFO, you'll want to find a place to stay in San Francisco. Make one of these accommodation options your base for exploring this exciting destination:

  • Golden Gate Bridge and Alcatraz Island are just the start of the big attractions to add to your San Francisco must-do list. Keep the sightseeing going at Lombard Street.

Complete your San Francisco trip with hotels and a car rental

  • We've got more party tricks up our sleeve than just comparing flights. After booking your cheap ticket to San Francisco International Airport, check out our great car rental offers that'll give you the flexibility and freedom to see the sights at your own pace. Then, have a look at our exclusive rates for hotels to find the perfect San Francisco stay.

Plan the rest of your trip from Reykjavik to San Francisco

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.