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Cheap flights from Reykjavik Keflavik Intl Airport to San Francisco from $286

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Reykjavik Keflavik Intl Airport to San Francisco departing on 5/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Reykjavik Keflavik Intl Airport to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
5:10 pm - 12:59 am
KEF
-
SFO
14h 49m
1 stop
Icelandair Logo
11:13 am - 9:25 am
SFO
-
KEF
15h 12m
1 stop
$871Icelandair
Tue, Mar 31 - Tue, Apr 7
Multiple Airlines Logo
5:10 pm - 12:59 am
KEF
-
SFO
14h 49m
1 stop
Multiple Airlines Logo
9:59 am - 9:25 am
SFO
-
KEF
16h 26m
1 stop
$885Multiple Airlines
Tue, Mar 31 - Tue, Apr 7
Icelandair Logo
10:40 am - 3:48 pm
KEF
-
SFO
12h 08m
1 stop
Icelandair Logo
12:17 pm - 9:25 am
SFO
-
KEF
14h 08m
1 stop
$887Icelandair
Wed, Jul 1 - Tue, Jul 7
United Airlines Logo
11:00 am - 5:48 pm
KEF
-
SFO
13h 48m
1 stop
United Airlines Logo
10:25 am - 8:30 am
SFO
-
KEF
15h 05m
2 stops
$941United Airlines
Wed, Jul 1 - Tue, Jul 7
Multiple Airlines Logo
5:10 pm - 12:59 am
KEF
-
SFO
14h 49m
1 stop
Multiple Airlines Logo
10:00 pm - 8:55 am
SFO
-
KEF
27h 55m
2 stops
$947Multiple Airlines
Tue, Mar 31 - Tue, Apr 7
Scandinavian Airlines Logo
6:25 pm - 2:40 pm
KEF
-
SFO
51h 15m
2 stops
Scandinavian Airlines Logo
4:45 pm - 10:25 am
SFO
-
KEF
34h 40m
2 stops
$963Scandinavian Airlines
Tue, Mar 31 - Tue, Apr 7
Scandinavian Airlines Logo
6:25 pm - 2:40 pm
KEF
-
SFO
51h 15m
2 stops
Scandinavian Airlines Logo
4:45 pm - 7:05 am
SFO
-
KEF
55h 20m
2 stops
$965Scandinavian Airlines
Tue, Mar 31 - Tue, Apr 7
Multiple Airlines Logo
8:00 pm - 12:00 pm
KEF
-
SFO
23h 00m
2 stops
Multiple Airlines Logo
4:35 pm - 7:40 am
SFO
-
KEF
32h 05m
3 stops
$1,265Multiple Airlines
Wed, Jul 1 - Tue, Jul 7
Multiple Airlines Logo
11:05 am - 3:20 pm
KEF
-
SFO
35h 15m
3 stops
Multiple Airlines Logo
1:20 pm - 11:35 pm
SFO
-
KEF
27h 15m
2 stops
$1,477Multiple Airlines
Tue, Mar 31 - Tue, Apr 7
Multiple Airlines Logo
11:05 am - 3:20 pm
KEF
-
SFO
35h 15m
3 stops
Multiple Airlines Logo
7:25 am - 4:15 pm
SFO
-
KEF
25h 50m
3 stops
$1,495Multiple Airlines
Tue, Mar 31 - Tue, Apr 7

Icelandair flights from Reykjavik Keflavik Intl Airport to San Francisco

Our best Icelandair deals on Reykjavik Keflavik Intl Airport to San Francisco flight tickets
Icelandair
Mar 31
KEF5:10 pmReykjavik Keflavik Intl
14h 49m
1 stop
SFO12:59 amSan Francisco
Apr 7
SFO11:13 amSan Francisco
15h 12m
1 stop
KEF9:25 amReykjavik Keflavik Intl
$871
Icelandair
Jul 1
KEF10:40 amReykjavik Keflavik Intl
12h 08m
1 stop
SFO3:48 pmSan Francisco
Jul 7
SFO12:17 pmSan Francisco
14h 08m
1 stop
KEF9:25 amReykjavik Keflavik Intl
$887

Scandinavian Airlines flights from Reykjavik Keflavik Intl Airport to San Francisco

Our best Scandinavian Airlines deals on Reykjavik Keflavik Intl Airport to San Francisco flight tickets
Scandinavian Airlines
Mar 31
KEF6:25 pmReykjavik Keflavik Intl
51h 15m
2 stops
SFO2:40 pmSan Francisco
Apr 7
SFO4:45 pmSan Francisco
34h 40m
2 stops
KEF10:25 amReykjavik Keflavik Intl
$963
Scandinavian Airlines
Mar 31
KEF6:25 pmReykjavik Keflavik Intl
51h 15m
2 stops
SFO2:40 pmSan Francisco
Apr 7
SFO4:45 pmSan Francisco
55h 20m
2 stops
KEF7:05 amReykjavik Keflavik Intl
$965

momondo Fare Finder

 
Customize your flight search to find flights from Reykjavik Keflavik Intl Airport to San Francisco 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 February 16, 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Tue 3/31

5:10 pm-12:59 am

1 stop14h 49m

San Francisco

Tue 4/7

11:13 am-9:25 am

1 stop15h 12m

$871

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Tue 3/31

5:10 pm-12:59 am

1 stop14h 49m

San Francisco

Tue 4/7

9:59 am-9:25 am

1 stop16h 26m

$885

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Wed 7/1

10:40 am-3:48 pm

1 stop12h 08m

San Francisco

Tue 7/7

12:17 pm-9:25 am

1 stop14h 08m

$887

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Wed 7/1

11:00 am-5:48 pm

1 stop13h 48m

San Francisco

Tue 7/7

10:25 am-8:30 am

2 stops15h 05m

$941

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Tue 3/31

5:10 pm-12:59 am

1 stop14h 49m

San Francisco

Tue 4/7

10:00 pm-8:55 am

2 stops27h 55m

$947

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Tue 3/31

6:25 pm-2:40 pm

2 stops51h 15m

San Francisco

Tue 4/7

4:45 pm-10:25 am

2 stops34h 40m

$963

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Tue 3/31

6:25 pm-2:40 pm

2 stops51h 15m

San Francisco

Tue 4/7

4:45 pm-7:05 am

2 stops55h 20m

$965

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Wed 7/1

8:00 pm-12:00 pm

2 stops23h 00m

San Francisco

Tue 7/7

4:35 pm-7:40 am

3 stops32h 05m

$1,265

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Tue 3/31

11:05 am-3:20 pm

3 stops35h 15m

San Francisco

Tue 4/7

1:20 pm-11:35 pm

2 stops27h 15m

$1,477

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Tue 3/31

11:05 am-3:20 pm

3 stops35h 15m

San Francisco

Tue 4/7

7:25 am-4:15 pm

3 stops25h 50m

$1,495

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 San Francisco from

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

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 cheapest airline that flies from Reykjavik Keflavik Intl to San Francisco?

WestJet is the most popular carrier operating from Reykjavik Keflavik Intl to San Francisco

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

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

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

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

Fastest flight time

12h 08m

Direct flights

None
The fastest flight from Reykjavik Keflavik Intl Airport to San Francisco takes 12h 08m
There are no direct flights from Reykjavik Keflavik Intl Airport to San Francisco. There are no popular flight routes from Reykjavik Keflavik Intl Airport to San Francisco.
Search flight deals

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

    San Francisco is 4180.8 mi away from Reykjavik Keflavik Intl. Typically, this will take 12h 08m by plane in normal conditions.

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

    Prices for flights from Reykjavik Keflavik Intl Airport to San Francisco Airport are refreshed on a daily basis.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Reykjavik Keflavik Intl Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The necessary travel and health documents for your San Francisco 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.

Traveling to a place near San Francisco?

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Why use momondo?

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

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 San Francisco from Reykjavik.

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

All flight searches from Reykjavik to San Francisco on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Reykjavik to San Francisco.

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

If you are not ready to book a flight from Reykjavik to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.

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