$470 Cheap Flights from San Antonio (SAT) to Reykjavik (KEF)

View $470 flight on Mon, May 11, 2026Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Reykjavik–Keflavik Intl. Airport (KEF)

Cheap Flights from San Antonio to Reykjavik (SAT-KEF)

Prices were available within the past 7 days and start at $470 for one-way flights and $605 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, Mar 31 - Tue, Apr 7
SAT
San Antonio
KEF
Reykjavik
$605 Roundtrip, found 6 days ago
$605
Roundtrip
found 6 days ago
Select British Airways flight, departing Tue, Mar 31 from San Antonio to Reykjavik, returning Tue, Apr 7, priced at $605 found 6 days ago
Lufthansa
Mon, Mar 23 - Tue, Mar 31
SAT
San Antonio
KEF
Reykjavik
$615 Roundtrip, found 2 days ago
$615
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Mon, Mar 23 from San Antonio to Reykjavik, returning Tue, Mar 31, priced at $615 found 2 days ago
Delta
Sat, Apr 25 - Tue, May 5
SAT
San Antonio
KEF
Reykjavik
$618 Roundtrip, found 4 days ago
$618
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Apr 25 from San Antonio to Reykjavik, returning Tue, May 5, priced at $618 found 4 days ago
British Airways
Mon, Nov 24 - Tue, Dec 2
SAT
San Antonio
KEF
Reykjavik
$619 Roundtrip, found 18 hours ago
$619
Roundtrip
found 18 hours ago
Select British Airways flight, departing Mon, Nov 24 from San Antonio to Reykjavik, returning Tue, Dec 2, priced at $619 found 18 hours ago
Lufthansa
Tue, May 5 - Tue, May 12
SAT
San Antonio
KEF
Reykjavik
$627 Roundtrip, found 21 hours ago
$627
Roundtrip
found 21 hours ago
Select Lufthansa flight, departing Tue, May 5 from San Antonio to Reykjavik, returning Tue, May 12, priced at $627 found 21 hours ago
Lufthansa
Mon, Jan 12 - Tue, Jan 20
SAT
San Antonio
KEF
Reykjavik
$635 Roundtrip, found 1 day ago
$635
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Mon, Jan 12 from San Antonio to Reykjavik, returning Tue, Jan 20, priced at $635 found 1 day ago
United
Mon, Mar 23 - Tue, Mar 31
SAT
San Antonio
KEF
Reykjavik
$635 Roundtrip, found 2 days ago
$635
Roundtrip
found 2 days ago
Select United flight, departing Mon, Mar 23 from San Antonio to Reykjavik, returning Tue, Mar 31, priced at $635 found 2 days ago
British Airways
Sat, Apr 11 - Tue, Apr 21
SAT
San Antonio
KEF
Reykjavik
$637 Roundtrip, found 3 days ago
$637
Roundtrip
found 3 days ago
Select British Airways flight, departing Sat, Apr 11 from San Antonio to Reykjavik, returning Tue, Apr 21, priced at $637 found 3 days ago
Lufthansa
Wed, Jan 7 - Tue, Jan 20
SAT
San Antonio
KEF
Reykjavik
$642 Roundtrip, found 6 days ago
$642
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Jan 7 from San Antonio to Reykjavik, returning Tue, Jan 20, priced at $642 found 6 days ago
Virgin Atlantic
Sun, Apr 12 - Tue, Apr 28
SAT
San Antonio
KEF
Reykjavik
$643 Roundtrip, found 4 days ago
$643
Roundtrip
found 4 days ago
Select Virgin Atlantic flight, departing Sun, Apr 12 from San Antonio to Reykjavik, returning Tue, Apr 28, priced at $643 found 4 days ago

Find the cheapest month to fly from San Antonio (SAT) to Reykjavik (KEF)

April is typically the cheapest month to fly

From $375 - $1,369 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 $944
KEF
Keflavik Intl.
Cheapest
Average driving time to city center45 min
Flights from $944

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Keflavik Intl. Airport (KEF) cost?
Secure a cheap one-way flight from $470 or cheap return flight from $605 from San Antonio Intl. Airport (SAT) to Keflavik Intl. Airport (KEF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from San Antonio Intl. Airport (SAT) to Keflavik Intl. Airport (KEF)?
March is the least expensive month to fly from SAT to KEF. Traveling during an off-peak travel window is often the key to finding a great deal.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Keflavik Intl. Airport (KEF)?
To find the cheapest airline flying from SAT to KEF, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from San Antonio Intl. Airport (SAT) to Keflavik Intl. Airport (KEF)?
You'll need to catch a flight with a layover if you're traveling from San Antonio Intl. Airport (SAT) to Keflavik Intl. Airport (KEF). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from SAT to KEF?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change 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 Antonio Intl. Airport (SAT) to Keflavik Intl. Airport (KEF)?
Choose a flight from San Antonio Intl. Airport (SAT) to Keflavik Intl. Airport (KEF) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures after this time 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 Antonio Intl. Airport (SAT) to Keflavik Intl. Airport (KEF) last-minute?
Booking your plane ticket from SAT to KEF just before your journey is usually more expensive. However, if you're flexible with your departure times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a SAT to KEF flight and hotel package?
You'll typically save money by booking a SAT to KEF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've chosen your ideal accommodations and flights, consider adding extras including tours, activities and car rentals.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Keflavik Intl. Airport (KEF)?
It's usually possible to reschedule or cancel your SAT to KEF flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
San Antonio Intl.
Destination airport
Keflavik Intl.
Airlines serving
Air Canada, Air France, Alaska Airlines, American Airlines, British Airways, Delta, Finnair, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic
Roundtrip price
$604
Distance
3977 mi

Book with confidence

San Antonio to Reykjavik Flights

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

 

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

Sunday is one of the best days to book for cheap flights from San Antonio 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 Antonio 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 Antonio to Reykjavik in 2025. You can also book with separate airlines for your outbound and return journeys, from $470 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 Antonio 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 Antonio 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.

 

San Antonio to Reykjavik Flights

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*Available to One Key members.