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Keflavik Intl

$536+ Cheap flights from San Jose (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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — KEF
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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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 September 15, 2025.

Round-trip from

$654
(Finnair)

One-way from

$536
(United Airlines)

Popular in

August

Cheapest in

March

Average price

$1,038
From San Jose to Reykjavik Keflavik Intl
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One-way flight from San Jose to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 10% potential increase in price ($127 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 15, 2025.

This Finnair deal was found by Cheapflights users on 9/14. 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.
Tue 11/46:00 amSJC - KEF
2 stops43h 15mMultiple Airlines
Tue 11/1110:00 amKEF - SJC
2 stops59h 17mMultiple Airlines
Deal found 9/14$654
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:10 amSJC - KEF
1 stop15h 05mMultiple Airlines
Fri 11/75:00 pmKEF - SJC
1 stop13h 59mMultiple Airlines
Deal found 9/14$670
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:40 amSJC - KEF
2 stops28h 15mScandinavian Airlines
Thu 12/411:30 amKEF - SJC
2 stops43h 26mScandinavian Airlines
Deal found 9/14$742
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:40 amSJC - KEF
2 stops28h 15mScandinavian Airlines
Sat 12/67:35 amKEF - SJC
2 stops23h 26mScandinavian Airlines
Deal found 9/14$760
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/246:15 amSJC - KEF
2 stops16h 40mMultiple Airlines
Wed 10/294:50 pmKEF - SJC
1 stop23h 05mMultiple Airlines
Deal found 9/14$767
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:25 amSJC - KEF
2 stops44h 20mScandinavian Airlines
Sun 12/711:30 amKEF - SJC
2 stops43h 31mScandinavian Airlines
Deal found 9/14$772
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:20 pmSJC - KEF
2 stops30h 50mUnited Airlines
Mon 9/229:50 amKEF - SJC
2 stops42h 28mUnited Airlines
Deal found 9/14$848
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/243:37 pmSJC - KEF
2 stops39h 48mScandinavian Airlines
Tue 12/911:30 amKEF - SJC
2 stops43h 26mScandinavian Airlines
Deal found 9/14$862
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/158:45 amSJC - KEF
3 stops16h 30mMultiple Airlines
Mon 9/229:50 amKEF - SJC
2 stops33h 15mMultiple Airlines
Deal found 9/14$868

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 September 15, 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

Tue 11/4

6:00 am-9:15 am

2 stops43h 15m

Reykjavik Keflavik Intl

Tue 11/11

10:00 am-1:17 pm

2 stops59h 17m

$654

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Sun 3/1

5:52 am-9:15 am

2 stops43h 23m

Reykjavik Keflavik Intl

Sat 3/7

6:00 pm-7:46 pm

2 stops33h 46m

$677

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Wed 2/4

12:17 pm-9:15 am

2 stops60h 58m

Reykjavik Keflavik Intl

Tue 2/10

10:00 am-8:50 pm

2 stops42h 50m

$684

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Fri 10/31

7:50 am-5:15 pm

2 stops26h 25m

Reykjavik Keflavik Intl

Fri 11/7

10:00 am-8:48 pm

2 stops42h 48m

$792

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Tue 11/25

1:59 pm-11:55 pm

2 stops25h 56m

Reykjavik Keflavik Intl

Sun 12/7

11:30 am-11:01 pm

2 stops43h 31m

$892

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Sun 11/30

4:30 pm-10:55 am

2 stops34h 25m

Reykjavik Keflavik Intl

Sat 12/6

10:00 am-8:45 pm

2 stops42h 45m

$924

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Sat 11/29

4:30 pm-10:55 am

2 stops34h 25m

Reykjavik Keflavik Intl

Sat 12/6

10:00 am-8:45 pm

2 stops42h 45m

$979

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Tue 10/7

7:00 am-6:20 am

2 stops16h 20m

Reykjavik Keflavik Intl

Mon 10/13

8:45 am-10:58 pm

2 stops21h 13m

$985

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Sun 3/1

10:05 am-6:15 am

1 stop12h 10m

Reykjavik Keflavik Intl

Sat 3/7

5:00 pm-10:03 pm

1 stop13h 03m

$988

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Thu 11/27

10:35 am-6:05 am

1 stop11h 30m

Reykjavik Keflavik Intl

Sat 12/6

4:55 pm-11:45 am

1 stop26h 50m

$997

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 19 results
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2

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 to Reykjavik Keflavik Intl Airport?

Currently, November is the cheapest month in which you can book a flight from San Jose to Reykjavik Keflavik Intl Airport (average of $328). Flying from San Jose to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $656). 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 September 15, 2025.

A simple way to save on the total cost of your ticket is to fly from San Jose to Reykjavik Keflavik Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 14% 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 September 15, 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
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

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
7.0
Good
544 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

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 to Reykjavik Keflavik Intl Airport?

    Departing from San Jose to Reykjavik Keflavik Intl Airport will take you 25h 56m. There are 4193 mi between San Jose and Reykjavik Keflavik Intl Airport.

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

    Icelandair, at $736, was found to be the cheapest airline from San Jose to Reykjavik Keflavik Intl Airport. An alternate airline flying to your destination would be Alaska Airlines. Icelandair is 33% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from San Jose to Reykjavik Keflavik Intl Airport are United Airlines ($536), Alaska Airlines ($710), and Icelandair ($831).

  • 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 to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from San Jose to Reykjavik Keflavik Intl Airport (average of $328). Flying from San Jose to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $656). 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$736Average$1,124FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$975Average$1,167FlexibilityNo cancel feeOn-time75%

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