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$328+ Cheap flights from Keflavik Intl (KEF) to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — SFO
ene. 26 — feb. 21
dom. 1/26
dom. 2/2
1 adult, Economy
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Cheap flight deals from Keflavik Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$504
(Justfly.com)

One-way from

$328
(Kiwi.com)
Provider with most accurate pricing for Reykjavik Keflavik Intl-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Reykjavik Keflavik Intl-San Francisco flights.
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From Reykjavik Keflavik Intl to San Francisco
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One-way flight from Reykjavik Keflavik Intl to San Francisco
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Find flight deals from Keflavik Intl to San Francisco

Cheapest flights from Keflavik Intl to San Francisco
Explore the most affordable flight options available from Keflavik Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2025.

This Justfly.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/153:40 pmKEF - SFO
1 stop32h 00mScandinavian Airlines
dom. 3/307:40 pmSFO - KEF
1 stop30h 50mScandinavian Airlines
Deal found 1/20$504
This Icelandair deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/104:50 pmKEF - SFO
1 stop13h 54mMultiple Airlines
dom. 4/209:30 amSFO - KEF
1 stop16h 55mMultiple Airlines
Deal found 1/19$859
This Lufthansa deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/152:20 pmKEF - SFO
2 stops30h 15mLufthansa
dom. 3/307:40 pmSFO - KEF
2 stops20h 55mLufthansa
Deal found 1/20$989
This Virgin Atlantic deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/1011:25 amKEF - SFO
1 stop16h 42mVirgin Atlantic
dom. 4/206:00 amSFO - KEF
2 stops20h 30mVirgin Atlantic
Deal found 1/19$998
This KLM deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/158:00 pmKEF - SFO
1 stop23h 50mKLM
dom. 3/301:45 pmSFO - KEF
1 stop21h 20mKLM
Deal found 1/20$1,050
This British Airways deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/2011:40 amKEF - SFO
2 stops29h 01mBritish Airways
lun. 3/3112:44 pmSFO - KEF
2 stops38h 16mBritish Airways
Deal found 1/20$2,625

Find flights from Keflavik Intl to San Francisco within your budget

Customize your flight search to find flights from Keflavik Intl 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, Cheapflights users made 2,558,603 searches. Data last updated enero 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

sáb. 3/15

3:40 pm-4:40 pm

1 stop32h 00m

San Francisco

dom. 3/30

7:40 pm-9:30 am

1 stop30h 50m

$504

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

jue. 4/10

4:50 pm-11:44 pm

1 stop13h 54m

San Francisco

dom. 4/20

9:30 am-9:25 am

1 stop16h 55m

$859

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

sáb. 3/15

2:20 pm-1:35 pm

2 stops30h 15m

San Francisco

dom. 3/30

7:40 pm-11:35 pm

2 stops20h 55m

$989

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

jue. 4/10

11:25 am-9:07 pm

1 stop16h 42m

San Francisco

dom. 4/20

6:00 am-9:30 am

2 stops20h 30m

$998

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

sáb. 3/15

8:00 pm-12:50 pm

1 stop23h 50m

San Francisco

dom. 3/30

1:45 pm-6:05 pm

1 stop21h 20m

$1,050

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

jue. 3/20

11:40 am-9:41 am

2 stops29h 01m

San Francisco

lun. 3/31

12:44 pm-10:00 am

2 stops38h 16m

$2,625

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

lun. 3/10

3:20 pm-12:43 am

2 stops40h 23m

$328

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

mar. 6/24

9:35 am-9:25 pm

1 stop18h 50m

$474

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

lun. 3/10

4:50 pm-1:04 am

1 stop15h 14m

$480

ReykjavikSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

lun. 6/16

8:45 am-10:05 pm

2 stops20h 20m

$632

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 16 results
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Compare providers for flights from Keflavik Intl to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Keflavik Intl to San Francisco in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Reykjavik Keflavik Intl Airport-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Reykjavik Keflavik Intl Airport-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Reykjavik Keflavik Intl Airport-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Reykjavik Keflavik Intl Airport-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Reykjavik Keflavik Intl Airport-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Keflavik Intl to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Keflavik Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Keflavik Intl to San Francisco

Get recent, data-driven insights about flights from Keflavik Intl to San Francisco including ideal travel times, pricing trends, and more.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated enero 21, 2025.
KLM
7.8
Good
1,341 reviews

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,341 reviews
KLM
7.8
Good
1,341 reviews

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Finnair
7.6
Good
1,285 reviews
KLM
7.8
Good
1,341 reviews

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Austrian Airlines
7.6
Good
786 reviews
KLM
7.8
Good
1,341 reviews

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

SWISS
7.5
Good
1,599 reviews
KLM
7.8
Good
1,341 reviews

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Virgin Atlantic
7.5
Good
665 reviews
KLM
7.8
Good
1,341 reviews

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from Reykjavik Keflavik Intl?

    Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Reykjavik Keflavik Intl. On average, San Francisco has 0 inbound flights from Reykjavik Keflavik Intl per day from 0 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

  • What are the cheapest airlines to fly from Reykjavik Keflavik Intl Airport to San Francisco one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $474. However, be on the lookout for offers from Icelandair and Finnair, as they are both options that can get you from Reykjavik Keflavik Intl Airport to San Francisco for a low price.

  • Can I find deals for flights from Keflavik Intl to San Francisco that include hotel bookings?

    Yes. In addition to deals on Keflavik Intl to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Keflavik Intl to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Keflavik Intl to San Francisco.

  • Can I find deals for business class flights from Keflavik Intl to San Francisco?

    Yes. Cheapflights offers flight deals from Keflavik Intl to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to San Francisco (average of $276). Flying from Reykjavik Keflavik Intl Airport to San Francisco in June is currently the most expensive (average of $405). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Roseville
Mountain View
Turlock
Santa Cruz
Fairfield
Manteca
Sausalito
Watsonville
Hayward
Richmond
Hollister
South San Francisco
Antioch
Milpitas
Elk Grove
Newark
Alameda
Campbell
Lathrop
Pacific Grove

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Alternative routes for Keflavik Intl to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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