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Keflavik Intl

$626+ Cheap flights from San Jose, CA (SJC) to Keflavik Intl (KEF)

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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — KEF
Nov 18 — Nov 251
Tue 11/18
Tue 11/25
1 adult, Economy
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Find flight deals from San Jose to Keflavik Intl

Cheapest flights from San Jose to Keflavik Intl
Explore the most affordable flight options available from San Jose to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2025.

This Finnair deal was found by Cheapflights users on 10/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:00 amSJC - KEF
2 stops43h 15mFinnair
Mon 12/810:00 amKEF - SJC
2 stops42h 36mFinnair
Deal found 10/17$734
This Kiwi.com deal was found by Cheapflights users on 10/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:05 amSJC - KEF
1 stop15h 10mMultiple Airlines
Mon 12/84:50 pmKEF - SJC
1 stop14h 09mMultiple Airlines
Deal found 10/17$874
This KAYAK deal was found by Cheapflights users on 10/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:45 amSJC - KEF
2 stops30h 50mLufthansa
Tue 11/113:20 pmKEF - SJC
2 stops37h 33mLufthansa
Deal found 10/18$915
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/189:35 amSJC - KEF
1 stop12h 40mAlaska Airlines
Wed 12/245:00 pmKEF - SJC
1 stop24h 22mAlaska Airlines
Deal found 10/18$1,031
This Kiwi.com deal was found by Cheapflights users on 10/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/19:49 amSJC - KEF
1 stop13h 26mMultiple Airlines
Wed 11/54:50 pmKEF - SJC
1 stop24h 05mMultiple Airlines
Deal found 10/17$1,058
This Alaska Airlines deal was found by Cheapflights users on 10/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:05 amSJC - KEF
1 stop15h 10mAlaska Airlines
Mon 12/84:50 pmKEF - SJC
2 stops25h 24mAlaska Airlines
Deal found 10/17$1,080
This SmartFares deal was found by Cheapflights users on 10/17. 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.
Sun 11/168:10 amSJC - KEF
1 stop14h 05mAlaska Airlines
Sun 11/234:50 pmKEF - SJC
1 stop14h 09mAlaska Airlines
Deal found 10/17$1,118
This Icelandair deal was found by Cheapflights users on 10/18. 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.
Thu 12/186:35 amSJC - KEF
2 stops15h 55mMultiple Airlines
Wed 12/245:00 pmKEF - SJC
1 stop24h 22mMultiple Airlines
Deal found 10/18$1,140
This Gurufare deal was found by Cheapflights users on 10/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/168:10 amSJC - KEF
1 stop14h 05mIcelandair
Sun 11/234:50 pmKEF - SJC
1 stop14h 09mIcelandair
Deal found 10/17$1,172
This Alaska Airlines deal was found by Cheapflights users on 10/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:30 pmSJC - KEF
2 stops27h 45mAlaska Airlines
Sun 12/284:50 pmKEF - SJC
1 stop24h 08mAlaska Airlines
Deal found 10/17$1,195

Cheap flight deals from San Jose to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to Keflavik Intl (KEF). 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 October 19, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$620
(Finnair)

Popular in

August

Cheapest in

March

Average price

$1,010
Provider with most accurate pricing for San Jose-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Jose-Reykjavik Keflavik Intl flights.
Search Deals
From San Jose to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($130 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose to Keflavik Intl 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 October 19, 2025.
Use the filters below to find and compare flights from San Jose to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

San Jose

Fly to

Keflavik Intl

Route

Depart

Return

Price

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Mon 12/1

6:00 am-9:15 am

2 stops43h 15m

Reykjavik Keflavik Intl

Mon 12/8

10:00 am-8:36 pm

2 stops42h 36m

$734

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Mon 12/1

7:05 am-6:15 am

1 stop15h 10m

Reykjavik Keflavik Intl

Mon 12/8

4:50 pm-10:59 pm

1 stop14h 09m

$874

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Fri 1/9

6:00 am-5:15 pm

2 stops27h 15m

Reykjavik Keflavik Intl

Tue 1/13

10:00 am-9:29 pm

2 stops43h 29m

$966

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Fri 1/9

6:00 am-5:15 pm

2 stops27h 15m

Reykjavik Keflavik Intl

Mon 1/12

9:45 am-9:29 pm

2 stops43h 44m

$966

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Sat 1/10

3:45 pm-11:20 pm

2 stops23h 35m

Reykjavik Keflavik Intl

Thu 1/15

11:30 am-9:49 pm

2 stops42h 19m

$967

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Fri 1/9

6:00 am-5:15 pm

2 stops27h 15m

Reykjavik Keflavik Intl

Thu 1/15

9:45 am-10:59 pm

2 stops21h 14m

$978

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Fri 1/9

6:00 am-5:15 pm

2 stops27h 15m

Reykjavik Keflavik Intl

Wed 1/14

10:00 am-9:29 pm

2 stops43h 29m

$995

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Thu 1/8

11:00 am-6:15 am

1 stop11h 15m

Reykjavik Keflavik Intl

Sun 1/11

5:00 pm-9:48 am

1 stop24h 48m

$1,010

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Thu 12/18

9:35 am-6:15 am

1 stop12h 40m

Reykjavik Keflavik Intl

Wed 12/24

5:00 pm-9:22 am

1 stop24h 22m

$1,031

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Mon 12/1

7:05 am-6:15 am

1 stop15h 10m

Reykjavik Keflavik Intl

Mon 12/8

4:50 pm-10:14 am

2 stops25h 24m

$1,080

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

Showing 1-10 of 21 results
1
2
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Compare providers for flights from San Jose to Keflavik Intl

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 San Jose to Keflavik Intl in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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 San Jose, California-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Jose, California-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose, California-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Jose, California-Reykjavik Keflavik Intl Airport 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 San Jose, California-Reykjavik Keflavik Intl Airport 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 San Jose to Keflavik Intl

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

Cheapflights Insights

Everything you need to know about your flight from San Jose to Reykjavik Keflavik Intl Airport

What is the cheapest month to book a flight from San Jose, California to Reykjavik Keflavik Intl Airport?

Currently, April is the cheapest month in which you can book a flight from San Jose, California to Reykjavik Keflavik Intl Airport (average of $167). Flying from San Jose, California to Reykjavik Keflavik Intl Airport in January is currently the most expensive (average of $853). 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.

What is the cheapest time of day to fly from SJC to KEF?

Find hourly flight availability from San Jose to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 19, 2025.

A simple way to save on the total cost of your ticket is to fly from San Jose, California to Reykjavik Keflavik Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. 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 Keflavik Intl. Reviews last updated October 19, 2025.
Read reviews from past customers who have flown Alaska Airlines and Icelandair from San Jose to Reykjavik Keflavik Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,129 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,129 reviews
Alaska Airlines
8.0
Very good
11,129 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Icelandair
7.1
Good
559 reviews
Alaska Airlines
8.0
Very good
11,129 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

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

    San Jose (SJC) is the airport you will fly out of if you book a flight from San Jose to Reykjavik Keflavik Intl. You should not have trouble finding flights to Reykjavik Keflavik Intl from San Jose; the airport handles an average of 0 outbound flights to Reykjavik Keflavik Intl per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the San Jose airport to Reykjavik Keflavik Intl. It is only a 2.9 mi journey to San Jose (SJC) from San Jose’s city center.

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

    Departing from San Jose, California to Reykjavik Keflavik Intl Airport will take you 23h 35m. There are 4193 mi between San Jose, California and Reykjavik Keflavik Intl Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Jose, California to Reykjavik Keflavik Intl Airport round-trip?

    Our cheapest airline available from San Jose, California to Reykjavik Keflavik Intl Airport is Alaska Airlines. Our recent data shows that you can find tickets from as low as $646 on this airline. An additional option worth looking into is Icelandair, starting at $736. Users have found that Alaska Airlines is 41% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Jose to Keflavik Intl 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 San Jose, California to Reykjavik Keflavik Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from San Jose, California to Reykjavik Keflavik Intl Airport (average of $167). Flying from San Jose, California to Reykjavik Keflavik Intl Airport in January is currently the most expensive (average of $853). 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
Keflavik
Hveragerdi

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Top 2 airlines flying from San Jose to Keflavik Intl

Discover the top 2 airlines that operate flights from San Jose to Keflavik Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$646Average$1,097FlexibilityNo cancel feeOn-time75%
IcelandairCheapest$736Average$1,124FlexibilityNo cancel feeOn-time76%

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