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$835+ Cheap flights from Keflavik Intl (KEF) to San Jose (SJC)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — SJC
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Keflavik Intl to San Jose

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to San Jose (SJC). 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 September 17, 2025.

Round-trip from

$835
(Icelandair)
From Reykjavik Keflavik Intl to San Jose
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Find flight deals from Keflavik Intl to San Jose

Cheapest flights from Keflavik Intl to San Jose
Explore the most affordable flight options available from Keflavik Intl to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This SmartFares deal was found by Cheapflights users on 9/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/214:50 pmKEF - SJC
1 stop23h 06mMultiple Airlines
Sun 10/2611:51 amSJC - KEF
1 stop11h 24mMultiple Airlines
Deal found 9/17$872
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/314:50 pmKEF - SJC
1 stop30h 48mIcelandair
Fri 11/78:10 amSJC - KEF
1 stop14h 05mIcelandair
Deal found 9/16$938
This Icelandair deal was found by Cheapflights users on 9/16. 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.
Fri 10/314:55 pmKEF - SJC
3 stops31h 50mMultiple Airlines
Fri 11/78:10 amSJC - KEF
1 stop14h 05mMultiple Airlines
Deal found 9/16$1,027
This SmartFares deal was found by Cheapflights users on 9/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/44:50 pmKEF - SJC
1 stop25h 54mMultiple Airlines
Fri 10/106:59 pmSJC - KEF
1 stop31h 26mMultiple Airlines
Deal found 9/17$1,441
This SmartFares deal was found by Cheapflights users on 9/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/274:50 pmKEF - SJC
1 stop23h 21mMultiple Airlines
Thu 10/28:00 amSJC - KEF
1 stop14h 55mMultiple Airlines
Deal found 9/17$1,444
This oojo deal was found by Cheapflights users on 9/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:25 amKEF - SJC
2 stops27h 29mLufthansa
Fri 10/1012:30 pmSJC - KEF
2 stops52h 05mLufthansa
Deal found 9/17$1,545
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/303:20 pmKEF - SJC
2 stops36h 33mLufthansa
Thu 11/138:45 amSJC - KEF
2 stops21h 35mLufthansa
Deal found 9/16$1,618
This AranGrant deal was found by Cheapflights users on 9/16. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:50 pmKEF - SJC
1 stop31h 48mMultiple Airlines
Sun 11/237:00 pmSJC - KEF
1 stop27h 15mMultiple Airlines
Deal found 9/16$2,549

Cheapflights Fare Finder

 
Customize your flight search to find flights from Keflavik Intl to San Jose 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 September 17, 2025.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to San Jose that are best for you.

Fly from

Keflavik Intl

Fly to

San Jose

Route

Depart

Return

Price

ReykjavikSan Jose

KEF - SJC

KEFSJC

Reykjavik Keflavik Intl

Wed 2/4

5:00 pm-10:03 pm

1 stop13h 03m

San Jose

Sun 2/8

10:05 am-6:15 am

1 stop12h 10m

$835

ReykjavikSan Jose

KEF - SJC

KEFSJC

Reykjavik Keflavik Intl

Tue 10/21

4:50 pm-8:56 am

1 stop23h 06m

San Jose

Sun 10/26

11:51 am-6:15 am

1 stop11h 24m

$872

ReykjavikSan Jose

KEF - SJC

KEFSJC

Reykjavik Keflavik Intl

Fri 10/31

4:50 pm-4:38 pm

1 stop30h 48m

San Jose

Fri 11/7

8:10 am-6:15 am

1 stop14h 05m

$938

ReykjavikSan Jose

KEF - SJC

KEFSJC

Reykjavik Keflavik Intl

Wed 2/4

11:50 am-7:04 pm

2 stops63h 14m

San Jose

Sun 2/8

3:05 pm-10:55 am

2 stops35h 50m

$990

ReykjavikSan Jose

KEF - SJC

KEFSJC

Reykjavik Keflavik Intl

Fri 10/31

4:55 pm-5:45 pm

3 stops31h 50m

San Jose

Fri 11/7

8:10 am-6:15 am

1 stop14h 05m

$1,027

ReykjavikSan Jose

KEF - SJC

KEFSJC

Reykjavik Keflavik Intl

Sat 10/4

4:50 pm-11:44 am

1 stop25h 54m

San Jose

Fri 10/10

6:59 pm-9:25 am

1 stop31h 26m

$1,441

ReykjavikSan Jose

KEF - SJC

KEFSJC

Reykjavik Keflavik Intl

Sat 9/27

4:50 pm-9:11 am

1 stop23h 21m

San Jose

Thu 10/2

8:00 am-5:55 am

1 stop14h 55m

$1,444

ReykjavikSan Jose

KEF - SJC

KEFSJC

Reykjavik Keflavik Intl

Thu 10/30

3:20 pm-8:53 pm

2 stops36h 33m

San Jose

Thu 11/13

8:45 am-2:20 pm

2 stops21h 35m

$1,618

ReykjavikSan Jose

KEF - SJC

KEFSJC

Reykjavik Keflavik Intl

Wed 11/12

4:50 pm-4:38 pm

1 stop31h 48m

San Jose

Sun 11/23

7:00 pm-6:15 am

1 stop27h 15m

$2,549

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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

Have a flexible travel schedule? Discover the best time to fly to San Jose 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.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to San Jose. 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 Jose from Reykjavik Keflavik Intl?

    If you book a flight to San Jose from Reykjavik Keflavik Intl, you will be flying to San Jose, which is the city’s only airport. San Jose (SJC) is located 2.9 mi from the center of San Jose. There are 0 flights from Reykjavik Keflavik Intl to San Jose per day from 0 different airlines.

  • How long is the flight from Reykjavik Keflavik Intl Airport to San Jose?

    For as low as $835, Icelandair can have you in San Jose from Reykjavik Keflavik Intl Airport in 13h 03m. The distance from Reykjavik Keflavik Intl Airport to San Jose is about 4193 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

    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 Jose.

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

    Yes. Cheapflights offers flight deals from Keflavik Intl to San Jose 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 Jose?

    Currently, September is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to San Jose (average of $255). Flying from Reykjavik Keflavik Intl Airport to San Jose in June is currently the most expensive (average of $359). 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

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