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Keflavik Intl

$513+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — KEF
may. 5 — may. 121
lun. 5/5
lun. 5/12
1 adult, Economy
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Cheap 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 abril 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$628
(Mytrip)

One-way from

$513
(Gurufare)

Popular in

June

Cheapest in

April

Average price

$746
Provider with most accurate pricing for San Antonio-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for San Antonio-Reykjavik Keflavik Intl flights.
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From San Antonio to Reykjavik Keflavik Intl
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One-way flight from San Antonio to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 14% potential increase in price ($156 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 abril 30, 2025.

This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/131:27 pmSAT - KEF
3 stops34h 18mMultiple Airlines
mar. 5/203:45 pmKEF - SAT
2 stops36h 06mMultiple Airlines
Deal found 4/29$628
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/45:45 pmSAT - KEF
2 stops35h 00mBritish Airways
lun. 11/1011:45 amKEF - SAT
2 stops41h 45mBritish Airways
Deal found 4/29$659
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/312:15 pmSAT - KEF
2 stops16h 15mKLM
mié. 9/108:45 amKEF - SAT
2 stops18h 38mKLM
Deal found 4/29$687
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.
sáb. 8/166:45 amSAT - KEF
1 stop20h 45mUnited Airlines
sáb. 8/239:30 amKEF - SAT
2 stops31h 31mUnited Airlines
Deal found 4/29$716
This Virgin Atlantic 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/1311:59 amSAT - KEF
1 stop16h 31mVirgin Atlantic
mar. 5/2011:25 amKEF - SAT
2 stops17h 56mVirgin Atlantic
Deal found 4/29$762
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/62:00 pmSAT - KEF
1 stop12h 00mDelta
dom. 9/218:45 amKEF - SAT
1 stop19h 33mDelta
Deal found 4/29$792
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/132:08 pmSAT - KEF
2 stops28h 27mLufthansa
lun. 5/1912:25 amKEF - SAT
2 stops25h 09mLufthansa
Deal found 4/29$808
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/255:20 pmSAT - KEF
2 stops57h 55mAir Canada
lun. 8/49:50 amKEF - SAT
2 stops36h 10mAir Canada
Deal found 4/29$809
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/47:00 pmSAT - KEF
1 stop29h 15mAlaska Airlines
lun. 11/105:05 pmKEF - SAT
1 stop30h 53mAlaska Airlines
Deal found 4/29$1,181
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/252:49 pmSAT - KEF
2 stops28h 01mScandinavian Airlines
dom. 8/31:00 amKEF - SAT
3 stops26h 22mScandinavian Airlines
Deal found 4/29$1,601

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 abril 30, 2025.
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

mar. 5/13

1:27 pm-4:45 am

3 stops34h 18m

Reykjavik Keflavik Intl

mar. 5/20

3:45 pm-10:51 pm

2 stops36h 06m

$628

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

mié. 9/3

12:15 pm-9:30 am

2 stops16h 15m

Reykjavik Keflavik Intl

mié. 9/10

8:45 am-10:23 pm

2 stops18h 38m

$687

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

sáb. 8/16

6:45 am-8:30 am

1 stop20h 45m

Reykjavik Keflavik Intl

sáb. 8/23

9:30 am-12:01 pm

2 stops31h 31m

$716

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

mar. 5/13

11:59 am-9:30 am

1 stop16h 31m

Reykjavik Keflavik Intl

mar. 5/20

11:25 am-12:21 am

2 stops17h 56m

$762

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

sáb. 9/6

2:00 pm-7:00 am

1 stop12h 00m

Reykjavik Keflavik Intl

dom. 9/21

8:45 am-11:18 pm

1 stop19h 33m

$792

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

mar. 5/13

2:08 pm-11:35 pm

2 stops28h 27m

Reykjavik Keflavik Intl

lun. 5/19

12:25 am-8:34 pm

2 stops25h 09m

$808

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

vie. 7/25

5:20 pm-8:15 am

2 stops57h 55m

Reykjavik Keflavik Intl

lun. 8/4

9:50 am-5:00 pm

2 stops36h 10m

$809

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

vie. 7/25

2:49 pm-11:50 pm

2 stops28h 01m

Reykjavik Keflavik Intl

dom. 8/3

1:00 am-10:22 pm

3 stops26h 22m

$1,601

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

lun. 7/21

6:03 pm-8:15 am

2 stops33h 12m

$513

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

lun. 7/21

11:25 am-6:20 am

1 stop13h 55m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 11 results
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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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San Antonio-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Reykjavik Keflavik Intl Airport

What is the cheapest month to book a flight from San Antonio to Reykjavik Keflavik Intl Airport?

Currently, November is the cheapest month in which you can book a flight from San Antonio to Reykjavik Keflavik Intl Airport (average of $328). Flying from San Antonio to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAT to KEF?

Find hourly flight availability from San Antonio to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 30, 2025.

When flying from San Antonio to Reykjavik Keflavik Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 9% versus a flight at noon.

Rainfall in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 1.6 in.

Temperature in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 abril 30, 2025.
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Scandinavian Airlines
7.3
Good
1,349 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 3 airlines. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

  • 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 $687. Other airlines that can offer you cheap pricing are United Airlines, from $716, and Virgin Atlantic, from $762. KLM is 26% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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.

  • What is the cheapest month to book a flight from San Antonio to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from San Antonio to Reykjavik Keflavik Intl Airport (average of $328). Flying from San Antonio to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 3 airlines flying from San Antonio to Keflavik Intl

Discover the top 3 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 abril 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$474Average$900FlexibilityNo cancel feeOn-time75%
DeltaCheapest$590Average$839FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$635Average$913FlexibilityNo cancel feeOn-time69%

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