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Cheap flights from San Antonio to Reykjavik from $429

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Reykjavik departing on 12/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Finnair Logo
1:40 pm - 9:15 amSAT-KEF
37h 35m2 stops
Finnair Logo
10:00 am - 6:25 pmKEF-SAT
38h 25m2 stops
$702Finnair
Find Deal
Sun, Feb 15 - Sun, Mar 1
Multiple Airlines Logo
7:43 pm - 6:05 amSAT-KEF
28h 22m1 stop
Multiple Airlines Logo
4:55 pm - 5:05 pmKEF-SAT
30h 10m2 stops
$790Multiple Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
Multiple Airlines Logo
7:43 pm - 6:05 amSAT-KEF
28h 22m1 stop
Multiple Airlines Logo
4:55 pm - 6:59 pmKEF-SAT
32h 04m2 stops
$820Multiple Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
Multiple Airlines Logo
10:13 am - 6:05 amSAT-KEF
13h 52m1 stop
Multiple Airlines Logo
4:55 pm - 9:18 amKEF-SAT
22h 23m1 stop
$826Multiple Airlines
Find Deal
Sun, Feb 15 - Sun, Mar 1
Multiple Airlines Logo
10:13 am - 6:05 amSAT-KEF
13h 52m1 stop
Multiple Airlines Logo
4:55 pm - 12:29 pmKEF-SAT
25h 34m2 stops
$848Multiple Airlines
Find Deal
Sun, Feb 15 - Sun, Mar 1
Alaska Airlines Logo
6:00 am - 6:15 amSAT-KEF
18h 15m1 stop
Alaska Airlines Logo
5:00 pm - 5:59 pmKEF-SAT
30h 59m1 stop
$957Alaska Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
Alaska Airlines Logo
6:00 am - 6:15 amSAT-KEF
18h 15m1 stop
Alaska Airlines Logo
5:00 pm - 5:59 pmKEF-SAT
30h 59m1 stop
$959Alaska Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
British Airways Logo
3:00 pm - 5:15 pmSAT-KEF
20h 15m2 stops
British Airways Logo
6:10 pm - 10:55 pmKEF-SAT
34h 45m2 stops
$1,531British Airways
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Thu, Nov 20 - Fri, Nov 28
British Airways Logo
3:00 pm - 10:45 amSAT-KEF
37h 45m2 stops
British Airways Logo
11:55 am - 8:51 pmKEF-SAT
38h 56m2 stops
$3,070British Airways
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Tue, Nov 18 - Sat, Nov 29
KLM Logo
4:00 pm - 7:05 pmSAT-KEF
21h 05m2 stops
KLM Logo
11:25 am - 9:39 pmKEF-SAT
40h 14m2 stops
$24,349KLM
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Tue, Mar 3 - Thu, Mar 5

British Airways flights from San Antonio to Reykjavik Keflavik Intl Airport

Our best British Airways deals on San Antonio to Reykjavik Keflavik Intl Airport flight tickets
British Airways
Nov 20
SAT3:00 pmSan Antonio
20h 15m
2 stops
KEF5:15 pmReykjavik Keflavik Intl
Nov 28
KEF6:10 pmReykjavik Keflavik Intl
34h 45m
2 stops
SAT10:55 pmSan Antonio
$1,531
Find similar
British Airways
Nov 18
SAT3:00 pmSan Antonio
37h 45m
2 stops
KEF10:45 amReykjavik Keflavik Intl
Nov 29
KEF11:55 amReykjavik Keflavik Intl
38h 56m
2 stops
SAT8:51 pmSan Antonio
$3,070
Find similar
British Airways
Nov 18
SAT6:05 pmSan Antonio
34h 40m
2 stops
KEF10:45 amReykjavik Keflavik Intl
Nov 29
KEF11:55 amReykjavik Keflavik Intl
33h 42m
2 stops
SAT3:37 pmSan Antonio
$3,073
Find similar

Alaska Airlines flights from San Antonio to Reykjavik Keflavik Intl Airport

Our best Alaska Airlines deals on San Antonio to Reykjavik Keflavik Intl Airport flight tickets
Alaska Airlines
Dec 8
SAT6:00 amSan Antonio
18h 15m
1 stop
KEF6:15 amReykjavik Keflavik Intl
Dec 15
KEF5:00 pmReykjavik Keflavik Intl
30h 59m
1 stop
SAT5:59 pmSan Antonio
$957
Find similar
Alaska Airlines
Dec 8
SAT6:00 amSan Antonio
18h 15m
1 stop
KEF6:15 amReykjavik Keflavik Intl
Dec 15
KEF5:00 pmReykjavik Keflavik Intl
30h 59m
1 stop
SAT5:59 pmSan Antonio
$959
Find similar
Alaska Airlines
Nov 20
SAT6:32 amSan Antonio
17h 43m
1 stop
KEF6:15 amReykjavik Keflavik Intl
Nov 28
KEF5:00 pmReykjavik Keflavik Intl
18h 00m
1 stop
SAT5:00 amSan Antonio
$1,341
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Reykjavik Keflavik Intl Airport 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, momondo users made 832,500 searches. Data last updated November 4, 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

Fly to

Route

Depart

Return

Price

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Sun 2/15

1:40 pm-9:15 am

2 stops37h 35m

Reykjavik Keflavik Intl

Sun 3/1

10:00 am-6:25 pm

2 stops38h 25m

$702

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Mon 12/8

7:43 pm-6:05 am

1 stop28h 22m

Reykjavik Keflavik Intl

Mon 12/15

4:55 pm-5:05 pm

2 stops30h 10m

$790

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Mon 12/8

7:43 pm-6:05 am

1 stop28h 22m

Reykjavik Keflavik Intl

Mon 12/15

4:55 pm-6:59 pm

2 stops32h 04m

$820

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Sun 2/15

10:13 am-6:05 am

1 stop13h 52m

Reykjavik Keflavik Intl

Sun 3/1

4:55 pm-9:18 am

1 stop22h 23m

$826

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Sun 2/15

10:13 am-6:05 am

1 stop13h 52m

Reykjavik Keflavik Intl

Sun 3/1

4:55 pm-12:29 pm

2 stops25h 34m

$848

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Mon 12/8

6:00 am-6:15 am

1 stop18h 15m

Reykjavik Keflavik Intl

Mon 12/15

5:00 pm-5:59 pm

1 stop30h 59m

$957

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Mon 12/8

6:00 am-6:15 am

1 stop18h 15m

Reykjavik Keflavik Intl

Mon 12/15

5:00 pm-5:59 pm

1 stop30h 59m

$959

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Thu 11/20

3:00 pm-5:15 pm

2 stops20h 15m

Reykjavik Keflavik Intl

Fri 11/28

6:10 pm-10:55 pm

2 stops34h 45m

$1,531

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Tue 11/18

3:00 pm-10:45 am

2 stops37h 45m

Reykjavik Keflavik Intl

Sat 11/29

11:55 am-8:51 pm

2 stops38h 56m

$3,070

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Tue 3/3

4:00 pm-7:05 pm

2 stops21h 05m

Reykjavik Keflavik Intl

Thu 3/5

11:25 am-9:39 pm

2 stops40h 14m

$24,349

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Reykjavik from

How to get the cheapest flight ticket from San Antonio to Reykjavik Keflavik Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest day to depart from San Antonio to Reykjavik Keflavik Intl Airport is on a Tuesday when prices can be found for as low as $761. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Thursday, with ticket prices averaging around $902.

What is the cheapest time of day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest time of day to fly to Reykjavik Keflavik Intl Airport is in the afternoon when flights can be purchased for as low as $791. Flights at noon are often more expensive with an average ticket price of $868.

When to book flights from San Antonio to Reykjavik Keflavik Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Antonio to Reykjavik Keflavik Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Antonio to Reykjavik Keflavik Intl Airport (SAT to KEF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Reykjavik Keflavik Intl Airport

Direct flights

None
There are no direct flights from San Antonio to Reykjavik Keflavik Intl Airport. There are no popular flight routes from San Antonio to Reykjavik Keflavik Intl Airport.
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  • How far is San Antonio to Reykjavik Keflavik Intl by plane?

    There are 3982.6 mi between San Antonio and Reykjavik Keflavik Intl. By plane, this route typically takes 13h 52m.

  • When did momondo last update prices for flights from San Antonio Airport to Reykjavik Keflavik Intl Airport?

    Prices for flights from San Antonio Airport to Reykjavik Keflavik Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from San Antonio Airport to Reykjavik Keflavik Intl Airport?

  • How old do you have to be to fly from San Antonio Airport to Reykjavik Keflavik Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Reykjavik Keflavik Intl Airport.

  • What documentation or ID do you need to fly to Reykjavik Keflavik Intl Airport?

    The travel and health documents you'll need for your trip to Reykjavik Keflavik Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Reykjavik Keflavik Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from San Antonio to Reykjavik Keflavik Intl Airport?

Best airlines flying from San Antonio to Reykjavik Keflavik Intl Airport

Compare and see reviews for airlines that fly from San Antonio to Reykjavik Keflavik Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $474Free CancellationRating
7.7
1,405 reviews
Search KLM flights
United AirlinesPriceFrom $636Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
DeltaPriceFrom $746Free CancellationRating
7.9
8,002 reviews
Search Delta flights

Traveling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Keflavik
Selfoss
Hella
Hveragerdi
Borgarnes
Grindavik
Kopavogur

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to Reykjavik?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Antonio to Reykjavik. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from San Antonio to Reykjavik with flexible booking policies on momondo?

All flight searches from San Antonio to Reykjavik on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from San Antonio to Reykjavik?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Antonio to Reykjavik.

I’m not ready to book a flight from San Antonio to Reykjavik right now. Can momondo alert me if prices change?

Price alerts on flights to Reykjavik from San Antonio are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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