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Cheap flights from San Francisco to Reykjavik from $237

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Reykjavik departing on 9/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Francisco to Reykjavik

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
6:00 am - 7:40 am
SFO
-
KEF
18h 40m
1 stop
WestJet Logo
9:00 am - 12:00 pm
KEF
-
SFO
34h 00m
1 stop
$669WestJet
Mon, Aug 24 - Fri, Sep 4
WestJet Logo
6:00 am - 7:40 am
SFO
-
KEF
18h 40m
1 stop
WestJet Logo
9:00 am - 12:00 pm
KEF
-
SFO
34h 00m
1 stop
$669WestJet
Wed, Aug 19 - Fri, Sep 4
Multiple Airlines Logo
8:56 pm - 7:40 am
SFO
-
KEF
27h 44m
2 stops
Multiple Airlines Logo
9:00 am - 9:55 pm
KEF
-
SFO
19h 55m
1 stop
$671Multiple Airlines
Wed, Aug 26 - Sat, Sep 5
Multiple Airlines Logo
8:56 pm - 7:40 am
SFO
-
KEF
27h 44m
2 stops
Multiple Airlines Logo
9:00 am - 9:55 pm
KEF
-
SFO
19h 55m
1 stop
$671Multiple Airlines
Wed, Aug 19 - Sat, Sep 5
Alaska Airlines Logo
6:21 pm - 9:00 am
SFO
-
KEF
31h 39m
1 stop
Alaska Airlines Logo
10:40 am - 10:59 pm
KEF
-
SFO
19h 19m
1 stop
$727Alaska Airlines
Wed, Sep 2 - Wed, Sep 9
Alaska Airlines Logo
9:03 am - 9:00 am
SFO
-
KEF
16h 57m
1 stop
Alaska Airlines Logo
4:50 pm - 10:59 pm
KEF
-
SFO
13h 09m
1 stop
$733Alaska Airlines
Thu, Sep 3 - Wed, Sep 9
Icelandair Logo
7:00 am - 6:10 am
SFO
-
KEF
15h 10m
1 stop
Icelandair Logo
4:50 pm - 12:22 am
KEF
-
SFO
15h 32m
1 stop
$748Icelandair
Sat, Jan 23 - Sun, Jan 31
United Airlines Logo
6:35 am - 10:00 am
SFO
-
KEF
20h 25m
1 stop
United Airlines Logo
12:00 pm - 12:53 am
KEF
-
SFO
20h 53m
1 stop
$756United Airlines
Sun, Oct 25 - Thu, Nov 5
Icelandair Logo
7:00 am - 6:10 am
SFO
-
KEF
15h 10m
1 stop
Icelandair Logo
4:50 pm - 12:22 am
KEF
-
SFO
15h 32m
1 stop
$760Icelandair
Tue, Jan 12 - Tue, Jan 19
United Airlines Logo
8:45 am - 10:00 am
SFO
-
KEF
18h 15m
2 stops
United Airlines Logo
12:00 pm - 5:25 pm
KEF
-
SFO
13h 25m
1 stop
$761United Airlines
Sun, Oct 25 - Thu, Nov 5

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Alaska Airlines flights from San Francisco to Reykjavik Keflavik Intl Airport

Our best Alaska Airlines deals on San Francisco to Reykjavik Keflavik Intl Airport flight tickets
Alaska Airlines
Sep 3
SFO9:03 amSan Francisco
16h 57m
1 stop
KEF9:00 amReykjavik Keflavik Intl
Sep 8
KEF10:40 amReykjavik Keflavik Intl
16h 19m
1 stop
SFO7:59 pmSan Francisco
$733
Alaska Airlines
Sep 2
SFO4:46 pmSan Francisco
33h 14m
1 stop
KEF9:00 amReykjavik Keflavik Intl
Sep 21
KEF4:50 pmReykjavik Keflavik Intl
12h 55m
1 stop
SFO10:45 pmSan Francisco
$742
Alaska Airlines
Aug 1
SFO8:28 pmSan Francisco
29h 32m
1 stop
KEF9:00 amReykjavik Keflavik Intl
Aug 31
KEF12:45 pmReykjavik Keflavik Intl
17h 55m
1 stop
SFO11:40 pmSan Francisco
$958

WestJet flights from San Francisco to Reykjavik Keflavik Intl Airport

Our best WestJet deals on San Francisco to Reykjavik Keflavik Intl Airport flight tickets
WestJet
Aug 18
SFO1:00 pmSan Francisco
11h 40m
1 stop
KEF7:40 amReykjavik Keflavik Intl
Sep 4
KEF9:00 amReykjavik Keflavik Intl
34h 00m
1 stop
SFO12:00 pmSan Francisco
$669
WestJet
Aug 23
SFO6:00 amSan Francisco
18h 40m
1 stop
KEF7:40 amReykjavik Keflavik Intl
Sep 4
KEF9:00 amReykjavik Keflavik Intl
34h 00m
1 stop
SFO12:00 pmSan Francisco
$670
WestJet
Aug 18
SFO6:00 amSan Francisco
18h 40m
1 stop
KEF7:40 amReykjavik Keflavik Intl
Sep 3
KEF9:00 amReykjavik Keflavik Intl
14h 40m
1 stop
SFO4:40 pmSan Francisco
$675

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Reykjavik Keflavik Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 28, 2026.
Use the filters below to find and compare flights from San Francisco to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Mon 8/24

6:00 am-7:40 am

1 stop18h 40m

Reykjavik Keflavik Intl

Fri 9/4

9:00 am-12:00 pm

1 stop34h 00m

$669

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Wed 8/19

6:00 am-7:40 am

1 stop18h 40m

Reykjavik Keflavik Intl

Fri 9/4

9:00 am-12:00 pm

1 stop34h 00m

$669

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Wed 8/26

8:56 pm-7:40 am

2 stops27h 44m

Reykjavik Keflavik Intl

Sat 9/5

9:00 am-9:55 pm

1 stop19h 55m

$671

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Wed 8/19

8:56 pm-7:40 am

2 stops27h 44m

Reykjavik Keflavik Intl

Sat 9/5

9:00 am-9:55 pm

1 stop19h 55m

$671

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Wed 9/2

6:21 pm-9:00 am

1 stop31h 39m

Reykjavik Keflavik Intl

Wed 9/9

10:40 am-10:59 pm

1 stop19h 19m

$727
Quickest round-trip

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Thu 9/3

9:03 am-9:00 am

1 stop16h 57m

Reykjavik Keflavik Intl

Wed 9/9

4:50 pm-10:59 pm

1 stop13h 09m

$733

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Sat 1/23

7:00 am-6:10 am

1 stop15h 10m

Reykjavik Keflavik Intl

Sun 1/31

4:50 pm-12:22 am

1 stop15h 32m

$748

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Sun 10/25

6:35 am-10:00 am

1 stop20h 25m

Reykjavik Keflavik Intl

Thu 11/5

12:00 pm-12:53 am

1 stop20h 53m

$756

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Tue 1/12

7:00 am-6:10 am

1 stop15h 10m

Reykjavik Keflavik Intl

Tue 1/19

4:50 pm-12:22 am

1 stop15h 32m

$760

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Sun 10/25

8:45 am-10:00 am

2 stops18h 15m

Reykjavik Keflavik Intl

Thu 11/5

12:00 pm-5:25 pm

1 stop13h 25m

$761

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Reykjavik from

How to get the cheapest flight ticket from San Francisco to Reykjavik Keflavik Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between San Francisco and Reykjavik Keflavik Intl Airport?

Prices are currently low for flights on this route.

Typical prices usually range from $853 to $1,051.
The lowest price recently found on this route was $669.

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

The month of December is, on average, the cheapest month to fly to Reykjavik Keflavik Intl Airport from San Francisco, with most prices found around $0. If you’re not able to fly to Reykjavik Keflavik Intl Airport in December, then October is your next best option. Flight prices from San Francisco to Reykjavik Keflavik Intl Airport during October average around $612.

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

You are more likely to see cheaper flights to Reykjavik Keflavik Intl Airport from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Reykjavik Keflavik Intl Airport for around $971 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Reykjavik Keflavik Intl Airport from San Francisco for as low as $800 on momondo.

When to book flights from San Francisco to Reykjavik Keflavik Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Reykjavik Keflavik Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Reykjavik Keflavik Intl Airport (SFO to KEF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Reykjavik Keflavik Intl Airport

Fastest flight time

12h 50m

Direct flights

None
The fastest flight from San Francisco to Reykjavik Keflavik Intl Airport takes 12h 50m
There are no direct flights from San Francisco to Reykjavik Keflavik Intl Airport. There are no popular flight routes from San Francisco to Reykjavik Keflavik Intl Airport.
Search flight deals

Frequently asked questions about flying from San Francisco to Reykjavik Keflavik Intl Airport

  • How far is San Francisco to Reykjavik Keflavik Intl by plane?

    San Francisco and Reykjavik Keflavik Intl are 4181.1 mi apart from one another. In terms of flight time, this usually takes a little over 12h 50m.

  • When did momondo last update prices for flights from San Francisco Airport to Reykjavik Keflavik Intl Airport?

    Prices for flights from San Francisco Airport to Reykjavik Keflavik Intl Airport refresh daily.

  • How many operators does momondo search for flights from San Francisco Airport to Reykjavik Keflavik Intl Airport?

  • How old do you have to be to fly from San Francisco Airport to Reykjavik Keflavik Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Reykjavik Keflavik Intl Airport.

  • What documentation or ID do you need to fly to Reykjavik Keflavik Intl Airport?

    The necessary travel and health documents for your Reykjavik Keflavik Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from San Francisco to Reykjavik Keflavik Intl Airport?

Best airlines flying from San Francisco to Reykjavik Keflavik Intl Airport

Compare and see reviews for airlines that fly from San Francisco to Reykjavik Keflavik Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $169Free CancellationRating
7.8
8,494 reviews
Search Delta flights
Alaska AirlinesPriceFrom $243Free CancellationRating
7.9
12,728 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $549Free CancellationRating
7.1
11,405 reviews
Search Air Canada flights
WestJetPriceFrom $635Free CancellationRating
7.2
3,415 reviews
Search WestJet flights
United AirlinesPriceFrom $636Free CancellationRating
7.4
10,052 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom $655Free CancellationRating
7.4
1,903 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $773Free CancellationRating
7.0
716 reviews
Search Icelandair flights

Traveling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Keflavik
Selfoss
Hella
Hveragerdi
Borgarnes
Grindavik
Kopavogur

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Reykjavik?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Reykjavik from San Francisco.

Can I find flights from San Francisco to Reykjavik with flexible booking policies on momondo?

Flights from San Francisco to Reykjavik with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Francisco to Reykjavik?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Reykjavik from San Francisco.

I’m not ready to book a flight from San Francisco to Reykjavik right now. Can momondo alert me if prices change?

Price alerts on flights to Reykjavik from San Francisco are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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