$457 Cheap Flights from San Diego (SAN) to Reykjavik (KEF)

View $457 flight on Wed, Jan 7, 2026Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to Reykjavik–Keflavik Intl. Airport (KEF)

Cheap Flights from San Diego to Reykjavik (SAN-KEF)

Prices were available within the past 7 days and start at $457 for one-way flights and $566 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Thu, Jan 22 - Sat, Jan 31
SAN
San Diego
KEF
Reykjavik
$566 Roundtrip, just found
$566
Roundtrip
just found
Select Swiss International Air Lines flight, departing Thu, Jan 22 from San Diego to Reykjavik, returning Sat, Jan 31, priced at $566 just found
United
Thu, Jan 22 - Tue, Jan 27
SAN
San Diego
KEF
Reykjavik
$584 Roundtrip, just found
$584
Roundtrip
just found
Select United flight, departing Thu, Jan 22 from San Diego to Reykjavik, returning Tue, Jan 27, priced at $584 just found
United
Thu, Jan 22 - Tue, Jan 27
SAN
San Diego
KEF
Reykjavik
$588 Roundtrip, just found
$588
Roundtrip
just found
Select United flight, departing Thu, Jan 22 from San Diego to Reykjavik, returning Tue, Jan 27, priced at $588 just found
United
Wed, Apr 1 - Fri, Apr 17
SAN
San Diego
KEF
Reykjavik
$590 Roundtrip, found 6 days ago
$590
Roundtrip
found 6 days ago
Select United flight, departing Wed, Apr 1 from San Diego to Reykjavik, returning Fri, Apr 17, priced at $590 found 6 days ago
Alaska Airlines
Tue, Aug 18 - Tue, Aug 25
SAN
San Diego
KEF
Reykjavik
$591 Roundtrip, found 1 hour ago
$591
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Aug 18 from San Diego to Reykjavik, returning Tue, Aug 25, priced at $591 found 1 hour ago
Virgin Atlantic
Sun, Apr 19 - Tue, Apr 28
SAN
San Diego
KEF
Reykjavik
$596 Roundtrip, found 15 hours ago
$596
Roundtrip
found 15 hours ago
Select Virgin Atlantic flight, departing Sun, Apr 19 from San Diego to Reykjavik, returning Tue, Apr 28, priced at $596 found 15 hours ago
United
Tue, Aug 18 - Tue, Aug 25
SAN
San Diego
KEF
Reykjavik
$601 Roundtrip, found 1 hour ago
$601
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Aug 18 from San Diego to Reykjavik, returning Tue, Aug 25, priced at $601 found 1 hour ago
Lufthansa
Fri, Apr 10 - Fri, Apr 17
SAN
San Diego
KEF
Reykjavik
$640 Roundtrip, found 5 days ago
$640
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Apr 10 from San Diego to Reykjavik, returning Fri, Apr 17, priced at $640 found 5 days ago
Virgin Atlantic
Fri, Apr 24 - Sat, May 9
SAN
San Diego
KEF
Reykjavik
$668 Roundtrip, found 1 day ago
$668
Roundtrip
found 1 day ago
Select Virgin Atlantic flight, departing Fri, Apr 24 from San Diego to Reykjavik, returning Sat, May 9, priced at $668 found 1 day ago
Air Canada
Mon, Aug 24 - Tue, Sep 1
SAN
San Diego
KEF
Reykjavik
$673 Roundtrip, found 1 day ago
$673
Roundtrip
found 1 day ago
Select Air Canada flight, departing Mon, Aug 24 from San Diego to Reykjavik, returning Tue, Sep 1, priced at $673 found 1 day ago

Find the cheapest month to fly from San Diego (SAN) to Reykjavik (KEF)

July is typically the cheapest month to fly

From US$ 522 - US$ 1,187 per traveler.
Flights from San Diego (SAN) to Reykjavik (KEF)
Origin airport
San Diego Intl.
Destination airport
Keflavik Intl.
Distance
4341 mi

San Diego to Reykjavik Flights

The cheapest times to fly from San Diego 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 Diego to Reykjavik are during the month of January. You can find some of the cheapest flights from San Diego to Reykjavik with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from San Diego 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 Diego 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 Diego to Reykjavik in 2025. You can also book with separate airlines for your outbound and return journeys, from $457 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 Diego 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 Diego 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 San Diego Intl. Airport (SAN) to Keflavik Intl. Airport (KEF) cost?
Get a cheap one-way flight from $457 or cheap return flight from $566 from San Diego Intl. Airport (SAN) to Keflavik Intl. Airport (KEF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from San Diego Intl. Airport (SAN) to Keflavik Intl. Airport (KEF)?
Planning your trip for January can help you save, as it's the cheapest month for flights between SAN and KEF. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to Keflavik Intl. Airport (KEF)?
To find the cheapest airline that'll fly you from SAN to KEF, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from San Diego Intl. Airport (SAN) to Keflavik Intl. Airport (KEF)?
You'll need to hop on a flight with a layover when traveling from San Diego Intl. Airport (SAN) to Keflavik Intl. Airport (KEF). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from SAN to KEF?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Diego Intl. Airport (SAN) to Keflavik Intl. Airport (KEF)?
Opt for a flight from San Diego Intl. Airport (SAN) to Keflavik Intl. Airport (KEF) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures later than this have a 22% higher chance of being canceled, on average.**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 San Diego Intl. Airport (SAN) to Keflavik Intl. Airport (KEF) last-minute?
Booking your plane ticket from SAN to KEF shortly before your journey is typically more expensive. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a SAN to KEF flight and hotel package?
Securing a SAN to KEF flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our extensive range of accommodations and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to Keflavik Intl. Airport (KEF)?
If you booked your SAN to KEF flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

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*Available to One Key members.