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Keflavik Intl

$509+ Cheap flights from San Antonio (SAT) to Keflavik Intl (KEF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — KEF
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from San Antonio to Keflavik Intl

Cheapest flights from San Antonio to Keflavik Intl
Explore the most affordable flight options available from San Antonio to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This Air France deal was found by Cheapflights users on 1/25. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:00 pm
SAT
-
KEF
2 stops35h 30m
Multiple Airlines
Tue 5/129:30 am
KEF
-
SAT
1 stop16h 58m
Multiple Airlines
Deal found 1/25$509
This KLM deal was found by Cheapflights users on 1/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:00 pm
SAT
-
KEF
1 stop12h 40m
KLM
Sun 5/179:30 am
KEF
-
SAT
1 stop16h 58m
KLM
Deal found 1/26$710
This United Airlines deal was found by Cheapflights users on 1/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:10 pm
SAT
-
KEF
1 stop15h 40m
United Airlines
Thu 9/1010:00 am
KEF
-
SAT
2 stops36h 33m
United Airlines
Deal found 1/26$719
This Booking.com deal was found by Cheapflights users on 1/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:00 am
SAT
-
KEF
2 stops41h 55m
Air Canada
Thu 9/1010:00 am
KEF
-
SAT
2 stops40h 13m
Air Canada
Deal found 1/26$726
This KLM deal was found by Cheapflights users on 1/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:10 pm
SAT
-
KEF
1 stop16h 20m
KLM
Thu 9/109:30 am
KEF
-
SAT
1 stop12h 46m
KLM
Deal found 1/26$734
This United Airlines deal was found by Cheapflights users on 1/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:30 am
SAT
-
KEF
2 stops19h 25m
United Airlines
Fri 10/99:15 am
KEF
-
SAT
2 stops36h 15m
United Airlines
Deal found 1/26$785
This Booking.com deal was found by Cheapflights users on 1/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:00 pm
SAT
-
KEF
2 stops34h 45m
Air Canada
Sun 10/119:15 am
KEF
-
SAT
2 stops40h 45m
Air Canada
Deal found 1/26$807
This United Airlines deal was found by Cheapflights users on 1/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:00 am
SAT
-
KEF
1 stop20h 30m
United Airlines
Fri 7/179:15 am
KEF
-
SAT
2 stops36h 15m
United Airlines
Deal found 1/26$819

Find flight deals from San Antonio to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) 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 January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$509
(Air France)
Provider with most accurate pricing for San Antonio-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Reykjavik Keflavik Intl flights.
Search Deals
From San Antonio to Reykjavik Keflavik Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio 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 January 28, 2026.
Use the filters below to find and compare flights from San Antonio to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

San Antonio

Fly to

Keflavik Intl

Route

Depart

Return

Price

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Tue 5/5

5:00 pm-9:30 am

2 stops35h 30m

Reykjavik Keflavik Intl

Tue 5/12

9:30 am-9:28 pm

1 stop16h 58m

$509

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Tue 5/12

2:00 pm-7:40 am

1 stop12h 40m

Reykjavik Keflavik Intl

Sun 5/17

9:30 am-9:28 pm

1 stop16h 58m

$710

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Tue 5/12

6:45 am-9:30 am

2 stops21h 45m

Reykjavik Keflavik Intl

Sun 5/17

8:50 am-2:57 pm

1 stop11h 07m

$714

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Mon 7/6

7:00 am-8:30 am

1 stop20h 30m

Reykjavik Keflavik Intl

Fri 7/17

9:15 am-4:30 pm

2 stops36h 15m

$819

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Sun 7/5

12:10 pm-9:30 am

1 stop16h 20m

Reykjavik Keflavik Intl

Fri 7/17

8:50 am-2:57 pm

1 stop11h 07m

$839

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Mon 7/6

2:00 pm-7:40 am

1 stop12h 40m

Reykjavik Keflavik Intl

Fri 7/17

8:50 am-2:57 pm

1 stop11h 07m

$839

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Fri 6/26

10:00 am-8:50 am

2 stops17h 50m

$805

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Compare providers for flights from San Antonio 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 Antonio to Keflavik Intl in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 Antonio-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 Antonio-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-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 Antonio-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 Antonio to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from San Antonio 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.

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 January 28, 2026.
Get a feel of what it's like to fly with Delta and United Airlines from San Antonio to Reykjavik Keflavik Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,124 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,124 reviews
Delta
7.9
Good
8,124 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,212 reviews
Delta
7.9
Good
8,124 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from San Antonio 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 Antonio to Reykjavik Keflavik Intl?

    Most people fly from San Antonio (SAT) if they book a flight from San Antonio to Reykjavik Keflavik Intl. On average, San Antonio has 0 outbound flights to Reykjavik Keflavik Intl per day from 2 airlines. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

  • How long is the flight from San Antonio to Reykjavik Keflavik Intl Airport?

    Departing from San Antonio to Reykjavik Keflavik Intl Airport will take you 12h 40m. There are 3975 mi between San Antonio and Reykjavik Keflavik Intl Airport.

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

    Cheapflights users have booked flights from San Antonio to Reykjavik Keflavik Intl Airport round-trip from $636. Another airline that can offer you cheap pricing is Delta.

  • Can I find deals for flights from San Antonio to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on San Antonio to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio 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 Antonio to Keflavik Intl.

  • Can I find deals for business class flights from San Antonio to Keflavik Intl?

    Yes. Cheapflights offers flight deals from San Antonio 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.

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

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Top 2 airlines flying from San Antonio to Keflavik Intl

Discover the top 2 airlines that operate flights from San Antonio 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$636Average$970FlexibilityNo cancel feeOn-time69%
DeltaCheapest$703Average$981FlexibilityNo cancel feeOn-timeN/A

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