HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$549+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — KEF
Nov 1 — Nov 81
Sat 11/1
Sat 11/8
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Jose to Keflavik Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$850
(Finnair)

One-way from

$549
(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
One-way flight from San Jose to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($128 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 2, 2025.

This oojo deal was found by Cheapflights users on 10/1. 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.
Mon 11/178:10 amSJC - KEF
1 stop14h 05mIcelandair
Mon 11/245:00 pmKEF - SJC
1 stop14h 58mIcelandair
Deal found 10/1$1,011
This oojo deal was found by Cheapflights users on 9/29. 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.
Mon 11/109:32 amSJC - KEF
1 stop12h 43mIcelandair
Thu 11/205:00 pmKEF - SJC
1 stop13h 59mIcelandair
Deal found 9/29$1,037
This oojo deal was found by Cheapflights users on 10/1. 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.
Tue 12/26:18 amSJC - KEF
1 stop15h 57mIcelandair
Tue 12/95:00 pmKEF - SJC
1 stop25h 14mIcelandair
Deal found 10/1$1,039
This Alaska Airlines deal was found by Cheapflights users on 10/1. 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 12/246:15 amSJC - KEF
1 stop16h 00mAlaska Airlines
Mon 12/295:00 pmKEF - SJC
1 stop24h 22mAlaska Airlines
Deal found 10/1$1,060
This oojo deal was found by Cheapflights users on 9/30. 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.
Mon 11/109:32 amSJC - KEF
1 stop12h 43mIcelandair
Fri 11/215:00 pmKEF - SJC
1 stop14h 58mIcelandair
Deal found 9/30$1,069
This Kiwi.com deal was found by Cheapflights users on 10/1. 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.
Thu 10/910:53 amSJC - KEF
2 stops38h 22mMultiple Airlines
Fri 10/314:50 pmKEF - SJC
1 stop23h 05mMultiple Airlines
Deal found 10/1$1,089
This Alaska Airlines deal was found by Cheapflights users on 10/2. 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 12/246:15 amSJC - KEF
1 stop16h 00mAlaska Airlines
Sun 12/284:50 pmKEF - SJC
1 stop31h 46mAlaska Airlines
Deal found 10/2$1,117
This oojo deal was found by Cheapflights users on 9/30. 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.
Mon 12/110:21 amSJC - KEF
1 stop11h 54mIcelandair
Mon 12/85:00 pmKEF - SJC
1 stop13h 59mIcelandair
Deal found 9/30$1,129
This oojo deal was found by Cheapflights users on 10/1. 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.
Tue 11/188:10 amSJC - KEF
1 stop14h 05mIcelandair
Tue 11/255:00 pmKEF - SJC
1 stop14h 58mIcelandair
Deal found 10/1$1,161

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 2, 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

Fri 3/13

6:10 am-5:15 pm

2 stops28h 05m

Reykjavik Keflavik Intl

Sat 3/21

6:00 pm-8:46 pm

2 stops33h 46m

$850

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Tue 3/24

9:30 am-6:15 am

1 stop13h 45m

Reykjavik Keflavik Intl

Tue 3/31

7:50 pm-9:13 am

1 stop20h 23m

$1,009

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Fri 3/6

10:05 am-6:15 am

1 stop12h 10m

Reykjavik Keflavik Intl

Wed 3/11

4:50 pm-10:59 pm

1 stop13h 09m

$1,011

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Fri 3/13

7:40 pm-6:15 am

1 stop27h 35m

Reykjavik Keflavik Intl

Sat 3/21

5:00 pm-10:04 pm

1 stop12h 04m

$1,033

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Mon 11/10

9:32 am-6:15 am

1 stop12h 43m

Reykjavik Keflavik Intl

Thu 11/20

5:00 pm-10:59 pm

1 stop13h 59m

$1,037

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Wed 12/24

6:15 am-6:15 am

1 stop16h 00m

Reykjavik Keflavik Intl

Mon 12/29

5:00 pm-9:22 am

1 stop24h 22m

$1,060

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Mon 11/10

9:32 am-6:15 am

1 stop12h 43m

Reykjavik Keflavik Intl

Fri 11/21

5:00 pm-11:58 pm

1 stop14h 58m

$1,069

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Fri 3/13

7:40 pm-6:15 am

1 stop27h 35m

Reykjavik Keflavik Intl

Sun 3/22

5:00 pm-10:04 pm

1 stop12h 04m

$1,099

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Wed 12/24

6:15 am-6:15 am

1 stop16h 00m

Reykjavik Keflavik Intl

Sun 12/28

4:50 pm-4:36 pm

1 stop31h 46m

$1,117

San JoseReykjavik

SJC - KEF

SJCKEF

San Jose

Mon 11/17

6:00 am-9:15 am

2 stops43h 15m

$549

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/1

Showing 1-10 of 13 results
1
2

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-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-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose-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-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-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 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 October 2, 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 October 2, 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
10,996 reviews

Food

7.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

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
10,996 reviews
Alaska Airlines
8.0
Very good
10,996 reviews

Food

7.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

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
546 reviews
Alaska Airlines
8.0
Very good
10,996 reviews

Food

7.1

Entertainment

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

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 13h 45m. There are 4193 mi between San Jose and Reykjavik Keflavik Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Alaska Airlines, at $646, was found to be the cheapest airline from San Jose to Reykjavik Keflavik Intl Airport. An alternate airline flying to your destination would be Icelandair. Alaska Airlines is 41% cheaper than the average price of flights available within the next 90 days 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 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$646Average$1,097FlexibilityNo cancel feeOn-time75%
IcelandairCheapest$736Average$1,124FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.