$677 Cheap Flights from San José (SJO) to Reykjavik (KEF)

View $677 flight on Sat, Jun 13, 2026Opens in a new window

Popular airlines from Juan Santamaria Intl. Airport (SJO) to Reykjavik–Keflavik Intl. Airport (KEF)

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Cheap Flights from San José to Reykjavik (SJO-KEF)

Prices were available within the past 7 days and start at $677 for one-way flights and $1,046 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Tue, Oct 6 - Wed, Oct 14
SJO
San José
KEF
Reykjavik
$1,046 Roundtrip, found 5 days ago
$1,046
Roundtrip
found 5 days ago
Select KLM flight, departing Tue, Oct 6 from San José to Reykjavik, returning Wed, Oct 14, priced at $1,046 found 5 days ago
KLM
Tue, Feb 10 - Tue, Feb 24
SJO
San José
KEF
Reykjavik
$1,047 Roundtrip, found 1 day ago
$1,047
Roundtrip
found 1 day ago
Select KLM flight, departing Tue, Feb 10 from San José to Reykjavik, returning Tue, Feb 24, priced at $1,047 found 1 day ago
KLM
Tue, Jun 16 - Mon, Jun 22
SJO
San José
KEF
Reykjavik
$1,058 Roundtrip, found 3 days ago
$1,058
Roundtrip
found 3 days ago
Select KLM flight, departing Tue, Jun 16 from San José to Reykjavik, returning Mon, Jun 22, priced at $1,058 found 3 days ago
KLM
Tue, Sep 15 - Wed, Sep 23
SJO
San José
KEF
Reykjavik
$1,059 Roundtrip, just found
$1,059
Roundtrip
just found
Select KLM flight, departing Tue, Sep 15 from San José to Reykjavik, returning Wed, Sep 23, priced at $1,059 just found
KLM
Tue, Apr 21 - Sun, Apr 26
SJO
San José
KEF
Reykjavik
$1,075 Roundtrip, found 4 hours ago
$1,075
Roundtrip
found 4 hours ago
Select KLM flight, departing Tue, Apr 21 from San José to Reykjavik, returning Sun, Apr 26, priced at $1,075 found 4 hours ago
KLM
Tue, Jan 27 - Wed, Feb 11
SJO
San José
KEF
Reykjavik
$1,075 Roundtrip, found 1 day ago
$1,075
Roundtrip
found 1 day ago
Select KLM flight, departing Tue, Jan 27 from San José to Reykjavik, returning Wed, Feb 11, priced at $1,075 found 1 day ago
Air France
Mon, Sep 21 - Wed, Sep 30
SJO
San José
KEF
Reykjavik
$1,101 Roundtrip, found 1 hour ago
$1,101
Roundtrip
found 1 hour ago
Select Air France flight, departing Mon, Sep 21 from San José to Reykjavik, returning Wed, Sep 30, priced at $1,101 found 1 hour ago
avianca
Tue, Sep 15 - Wed, Sep 23
SJO
San José
KEF
Reykjavik
$1,102 Roundtrip, just found
$1,102
Roundtrip
just found
Select avianca flight, departing Tue, Sep 15 from San José to Reykjavik, returning Wed, Sep 23, priced at $1,102 just found
Delta
Tue, Sep 15 - Wed, Sep 23
SJO
San José
KEF
Reykjavik
$1,117 Roundtrip, just found
$1,117
Roundtrip
just found
Select Delta flight, departing Tue, Sep 15 from San José to Reykjavik, returning Wed, Sep 23, priced at $1,117 just found
Lufthansa
Wed, Apr 15 - Tue, Apr 28
SJO
San José
KEF
Reykjavik
$1,158 Roundtrip, found 6 days ago
$1,158
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Apr 15 from San José to Reykjavik, returning Tue, Apr 28, priced at $1,158 found 6 days ago

Find the cheapest month to fly from San José (SJO) to Reykjavik (KEF)

June is typically the cheapest month to fly

From $933 - $1,660 per traveler.

Alternative airports near Reykjavik

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Keflavik Intl. KEF. Cheapest option available. Average driving time to city center is 45 minutes. Flights from $1,465
KEF
Keflavik Intl.
Cheapest
Average driving time to city center45 min
Flights from $1,465
Flights from San José (SJO) to Reykjavik (KEF)
Origin airport
Juan Santamaría Intl.
Destination airport
Keflavik Intl.
Airlines serving
Air Canada, American Airlines, British Airways, Delta, KLM, Lufthansa, Swiss International Air Lines, United
Roundtrip price
$1,045
Distance
4753 mi

San José to Reykjavik Flights

The cheapest times to fly from San José to Reykjavik

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San José to Reykjavik are during the month of October. You can find some of the cheapest flights from San José to Reykjavik with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San José to Reykjavik

Sunday is one of the best days to book for cheap flights from San José to Reykjavik: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San José to Reykjavik

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San José to Reykjavik in 2026. You can also book with separate airlines for your outbound and return journeys, from $677 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San José to Reykjavik flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San José to Reykjavik airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Juan Santamaria Intl. Airport (SJO) to Keflavik Intl. Airport (KEF) cost?
Lock in a cheap one-way flight from $677 or cheap return flight from $1,046 from Juan Santamaria Intl. Airport (SJO) to Keflavik Intl. Airport (KEF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Juan Santamaria Intl. Airport (SJO) to Keflavik Intl. Airport (KEF)?
Traveling in October is a good way to save, as it's the cheapest month for flights between SJO and KEF. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Juan Santamaria Intl. Airport (SJO) to Keflavik Intl. Airport (KEF)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SJO to KEF flight.
How many flights per day from Juan Santamaria Intl. Airport (SJO) to Keflavik Intl. Airport (KEF)?
There are no daily direct flights from Juan Santamaria Intl. Airport (SJO) to Keflavik Intl. Airport (KEF). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from SJO to KEF?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on various factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Juan Santamaria Intl. Airport (SJO) to Keflavik Intl. Airport (KEF)?
To land at Keflavik Intl. Airport (KEF) on time, opt for a flight that leaves from Juan Santamaria Intl. Airport (SJO) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Juan Santamaria Intl. Airport (SJO) to Keflavik Intl. Airport (KEF) last-minute?
Booking your ticket from SJO to KEF shortly before your journey is typically more expensive. However, if there's some wiggle room with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a SJO to KEF flight and hotel package?
Compared with arranging hotels and flights separately, booking a SJO to KEF flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place will take the hassle out of planning your trip. Just pick your flights and choose from our extensive range of hotels, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Juan Santamaria Intl. Airport (SJO) to Keflavik Intl. Airport (KEF)?
In most instances, you can cancel or modify your SJO to KEF flight. However, there may be additional fees, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want further information, visit our Customer Service portal.

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*Available to One Key members.