$526+ Cheap flights from San Antonio (SAT) to Keflavik Intl (KEF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — KEF
Jun 1 — Jun 81
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio to Keflavik Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Antonio to Keflavik Intl
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Cheapest flights from San Antonio to Keflavik IntlExplore 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 May 2, 2026.
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 May 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:51 pm
SAT
- KEF
1 stop29h 09m
Multiple Airlines
Sat 7/2510:45 am
KEF
- SAT
1 stop13h 09m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$869
This Icelandair deal was found by Cheapflights users on 4/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:15 am
SAT
- KEF
1 stop19h 15m
Multiple Airlines
Fri 11/205:00 pm
KEF
- SAT
1 stop32h 30m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$922
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/87:54 pm
SAT
- KEF
1 stop29h 06m
Multiple Airlines
Wed 6/1710:45 am
KEF
- SAT
1 stop13h 11m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$924
This Icelandair deal was found by Cheapflights users on 5/1. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:25 pm
SAT
- KEF
1 stop32h 00m
Multiple Airlines
Mon 10/125:00 pm
KEF
- SAT
1 stop29h 00m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$935
This Icelandair deal was found by Cheapflights users on 5/1. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/213:15 pm
SAT
- KEF
1 stop12h 55m
Multiple Airlines
Tue 7/2810:45 am
KEF
- SAT
1 stop17h 30m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$937
This Icelandair deal was found by Cheapflights users on 4/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:15 am
SAT
- KEF
1 stop19h 15m
Multiple Airlines
Sat 11/215:00 pm
KEF
- SAT
1 stop12h 00m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$939
This Icelandair deal was found by Cheapflights users on 4/27. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:25 pm
SAT
- KEF
1 stop10h 45m
Multiple Airlines
Wed 10/75:00 pm
KEF
- SAT
2 stops25h 35m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$958
This United Airlines deal was found by Cheapflights users on 4/29. 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 10/54:13 pm
SAT
- KEF
3 stops34h 42m
United Airlines
Tue 10/1310:00 am
KEF
- SAT
2 stops40h 58m
United Airlines
Deal found 4/29![United Airlines logo]()
$959
Best flights from San Antonio to Keflavik IntlDiscover carefully curated flight deals from San Antonio to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 2, 2026.
Discover carefully curated flight deals from San Antonio to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 2, 2026.
This Icelandair deal was found by Cheapflights users on 5/1. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/213:15 pm
SAT
- KEF
1 stop12h 55m
Multiple Airlines
Tue 7/2810:45 am
KEF
- SAT
1 stop17h 30m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 10/166:40 am
SAT
- KEF
2 stops21h 05m
United Airlines
Fri 10/239:15 am
KEF
- SAT
2 stops42h 53m
United Airlines
Deal found 4/28![United Airlines logo]()
$979
This KLM deal was found by Cheapflights users on 4/28. 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.
Fri 10/1612:10 pm
SAT
- KEF
1 stop16h 20m
KLM
Fri 10/2311:25 am
KEF
- SAT
2 stops18h 03m
KLM
Deal found 4/28![KLM logo]()
$995
This Scandinavian Airlines deal was found by Cheapflights users on 5/1. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:15 pm
SAT
- KEF
2 stops23h 00m
Scandinavian Airlines
Fri 9/45:05 pm
KEF
- SAT
2 stops36h 10m
Scandinavian Airlines
Deal found 5/1![Scandinavian Airlines logo]()
$1,049
This Icelandair deal was found by Cheapflights users on 4/27. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:45 am
SAT
- KEF
1 stop13h 40m
Multiple Airlines
Fri 10/234:50 pm
KEF
- SAT
1 stop32h 25m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$994
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Sun 8/166:40 am
SAT
- KEF
2 stops20h 15m
United Airlines
Sat 8/2911:30 am
KEF
- SAT
1 stop14h 07m
United Airlines
Deal found 4/29![United Airlines logo]()
$1,009
This KLM deal was found by Cheapflights users on 4/27. 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.
Thu 5/286:08 am
SAT
- KEF
1 stop20h 32m
Multiple Airlines
Thu 6/411:25 am
KEF
- SAT
2 stops16h 06m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,069
This United Airlines deal was found by Cheapflights users on 4/30. 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 5/125:34 pm
SAT
- KEF
1 stop10h 16m
United Airlines
Sun 5/1712:00 pm
KEF
- SAT
1 stop15h 54m
United Airlines
Deal found 4/30![United Airlines logo]()
$1,197
This Icelandair deal was found by Cheapflights users on 4/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/225:25 pm
SAT
- KEF
1 stop10h 15m
Multiple Airlines
Fri 7/310:45 am
KEF
- SAT
1 stop15h 15m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$1,137
Last-minute flights from San Antonio to Keflavik IntlDiscover last-minute flight deals from San Antonio to Keflavik Intl. Data last updated May 2, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Keflavik Intl. Data last updated May 2, 2026 and is based on user searches.
This Icelandair deal was found by Cheapflights users on 4/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/263:45 pm
SAT
- KEF
1 stop12h 25m
Multiple Airlines
Sat 5/3010:45 am
KEF
- SAT
1 stop15h 15m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,037
This Air France deal was found by Cheapflights users on 4/27. 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.
Thu 5/286:08 am
SAT
- KEF
1 stop20h 32m
Multiple Airlines
Thu 6/49:30 am
KEF
- SAT
1 stop17h 02m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,064
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:07 pm
SAT
- KEF
2 stops30h 18m
Multiple Airlines
Sat 6/139:00 am
KEF
- SAT
3 stops38h 02m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$1,115
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/87:54 pm
SAT
- KEF
1 stop29h 06m
Multiple Airlines
Wed 6/1710:45 am
KEF
- SAT
1 stop13h 11m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$924
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/127:51 pm
SAT
- KEF
1 stop29h 09m
Multiple Airlines
Fri 6/1910:45 am
KEF
- SAT
1 stop13h 11m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$1,102
This Icelandair deal was found by Cheapflights users on 4/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/225:25 pm
SAT
- KEF
1 stop10h 15m
Multiple Airlines
Fri 7/310:45 am
KEF
- SAT
1 stop15h 15m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$1,137
One-way flights from San Antonio to Keflavik IntlSearch for one-way flight options from San Antonio to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated May 2, 2026.
Search for one-way flight options from San Antonio to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated May 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:25 am
SAT
- KEF
3 stops48h 55m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$526
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:51 pm
SAT
- KEF
3 stops30h 49m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$527
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 8/17:35 pm
SAT
- KEF
2 stops31h 55m
United Airlines
Deal found 4/30![United Airlines logo]()
$591
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 7/257:35 pm
SAT
- KEF
2 stops31h 55m
United Airlines
Deal found 4/30![United Airlines logo]()
$621
This SmartFares deal was found by Cheapflights users on 4/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:00 pm
SAT
- KEF
1 stop12h 00m
Virgin Atlantic
Deal found 4/30![Virgin Atlantic logo]()
$630
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 7/17:35 pm
SAT
- KEF
2 stops31h 20m
United Airlines
Deal found 4/30![United Airlines logo]()
$841
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 May 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $869 (Kiwi.com) |
One-way from | $526 (Kiwi.com) |
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 May 2, 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
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioReykjavik
SAT - KEF
SATKEF
San Antonio
Tue 7/21
3:15 pm-9:10 am
1 stop12h 55m
Reykjavik Keflavik Intl
Tue 7/28
10:45 am-11:15 pm
1 stop17h 30m
$937
San AntonioReykjavik
SAT - KEF
SATKEF
San Antonio
Fri 10/16
6:40 am-8:45 am
2 stops21h 05m
Reykjavik Keflavik Intl
Fri 10/23
9:15 am-11:08 pm
2 stops42h 53m
$979
San AntonioReykjavik
SAT - KEF
SATKEF
San Antonio
Fri 10/16
11:45 am-6:25 am
1 stop13h 40m
Reykjavik Keflavik Intl
Fri 10/23
4:50 pm-8:15 pm
1 stop32h 25m
$994
San AntonioReykjavik
SAT - KEF
SATKEF
San Antonio
Fri 10/16
12:10 pm-9:30 am
1 stop16h 20m
Reykjavik Keflavik Intl
Fri 10/23
11:25 am-12:28 am
2 stops18h 03m
$995
San AntonioReykjavik
SAT - KEF
SATKEF
San Antonio
Sun 8/16
6:40 am-7:55 am
2 stops20h 15m
Reykjavik Keflavik Intl
Sat 8/29
11:30 am-8:37 pm
1 stop14h 07m
$1,009
San AntonioReykjavik
SAT - KEF
SATKEF
San Antonio
Mon 8/31
12:15 pm-4:15 pm
2 stops23h 00m
Reykjavik Keflavik Intl
Fri 9/4
5:05 pm-12:15 am
2 stops36h 10m
$1,049
San AntonioReykjavik
SAT - KEF
SATKEF
San Antonio
Thu 5/28
6:08 am-7:40 am
1 stop20h 32m
Reykjavik Keflavik Intl
Thu 6/4
11:25 am-10:31 pm
2 stops16h 06m
$1,069
Quickest round-trip
San AntonioReykjavik
SAT - KEF
SATKEF
San Antonio
Mon 6/22
5:25 pm-8:40 am
1 stop10h 15m
Reykjavik Keflavik Intl
Fri 7/3
10:45 am-9:00 pm
1 stop15h 15m
$1,137
San AntonioReykjavik
SAT - KEF
SATKEF
San Antonio
Tue 5/12
5:34 pm-8:50 am
1 stop10h 16m
Reykjavik Keflavik Intl
Sun 5/17
12:00 pm-10:54 pm
1 stop15h 54m
$1,197
Cheapest one-way
San AntonioReykjavik
SAT - KEF
SATKEF
San Antonio
Sat 8/22
7:51 pm-7:40 am
3 stops30h 49m
$527
Showing 1-10 of 15 resultsSorted by cheapest first
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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
SAT-KEF
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 May 2, 2026.
Get a feel of what it's like to fly with Delta 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.
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
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.
Traveling to a place near Reykjavik Keflavik Intl Airport?
Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locationsKeflavik
Hveragerdi
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Top airline flying from San Antonio to Keflavik Intl
Discover the top airline 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 May 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$628 | Average$978 | FlexibilityNo cancel fee | On-timeN/A |