The cheapest times to fly from SJC to KEF are

  • January 8th to February 11th (except the week of January 29th)
  • April 16th to April 29th
  • May 21st to June 10th
  • July 2nd to October 21st

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SJC to KEF is early September. Prices can be as high as $3724 for Saturday flights during early to mid May, or as low as $591 for Tuesday flights around early September.


When to Fly to Reykjavík

Flying from San Jose, CA (SJC) to Keflavik/Reykjavik (KEF) will usually cost between $610 to $971 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early September with an average ticket price of $615. Due to high demand the most expensive time to fly is early to mid May, with an average price of $1318. Planning your trip to low-cost times can easily save you $702 on economy flights and even more on first-class flights. Generally, any price below $840 can be considered a good price for a round-trip SJC to KEF flight.

See below for a graph of average weekly prices for the SJC to KEF route. All prices are for round-trip tickets in USD.

SJC to KEF Flight Prices

Compared to other flights, the SJC to KEF flight is cheaper than the average and costs less than the average flight leaving from San Jose. The average price per mile (for a direct flight) is $0.12, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to KEF, and Wednesday the cheapest day to fly back into SJC. Saturdays are the most expensive days to fly to Reykjavík, and Sundays are the most expensive days to return to San Jose. Selecting flights on the least expensive days could save you up to $149 (16%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $754. Return trip prices are from the KEF to SJC flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SJC to KEF can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 8 hour 32 minutes may not be realistic.


Flight Hacking SJC to KEF

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SJC to KEF — but Champion Traveler does!

Hack #1: London (SJC > LGW > KEF)

  • Price for both tickets: $596
  • Average savings: $245 (29.11%)

See SJC to LGW flights

Hack #2: London (SJC > LHR > KEF)

  • Price for both tickets: $616
  • Average savings: $224 (26.67%)

See SJC to LHR flights

Hack #3: New York, NY (SJC > JFK > KEF)

  • Price for both tickets: $718
  • Average savings: $122 (14.52%)

See SJC to JFK flights


Flight Questions Answered

Still have questions about flying from SJC to KEF? We’ve got answers.

Which airlines fly this route?

You can find 13 major airlines flying this route most often: Air Canada, Air France, Alaska, American, Austrian, British Airways, Delta, Finnair, Icelandair, JetBlue, KLM, Lufthansa, United, and potentially more during busy seasons.

How far away is it from Keflavik International Airport to Norman Y. Mineta San Jose International Airport?

The distance between the two airports is roughly 4195 miles or 6751 kilometers.

How long does it take to fly from SJC to KEF?

The real-world flight time for a nonstop SJC to KEF flight is about 8 hour 32 minutes.

How many flights go between San Jose, CA and Keflavik/Reykjavik?

It depends on the day of the week and the date, but a typical day might have around 64 available flights from SJC to KEF.


Airport Location Info


Departing Airport

Origination code SJC
Origination airport name Norman Y. Mineta San Jose International Airport
City San Jose, CA
Country the United States
Latitude 37.4
Longitude -121.9

Return Airport

Destination code KEF
Destination airport name Keflavik International Airport
City Keflavik/Reykjavik
Country Iceland
Latitude 64
Longitude -22.6


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.