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Cheap flights from San Antonio to Reykjavik from $375

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 8/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from San Antonio to Reykjavik

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:17 pm - 7:55 am
SAT
-
KEF
34h 38m
3 stops
United Airlines Logo
10:00 am - 12:11 pm
KEF
-
SAT
31h 11m
2 stops
$779United Airlines
Mon, Oct 5 - Tue, Oct 13
Air France Logo
1:20 pm - 9:30 am
SAT
-
KEF
15h 10m
1 stop
Air France Logo
11:25 am - 11:20 pm
KEF
-
SAT
16h 55m
2 stops
$796Air France
Mon, Oct 5 - Tue, Oct 13
Delta Logo
1:20 pm - 9:30 am
SAT
-
KEF
15h 10m
1 stop
Delta Logo
11:25 am - 10:56 am
KEF
-
SAT
28h 31m
1 stop
$797Delta
Mon, Oct 5 - Tue, Oct 13
United Airlines Logo
6:35 am - 8:50 am
SAT
-
KEF
21h 15m
1 stop
United Airlines Logo
9:15 am - 4:52 pm
KEF
-
SAT
36h 37m
2 stops
$831United Airlines
Fri, Oct 16 - Fri, Oct 23
United Airlines Logo
5:30 am - 8:50 am
SAT
-
KEF
22h 20m
2 stops
United Airlines Logo
9:15 am - 4:30 pm
KEF
-
SAT
36h 15m
2 stops
$836United Airlines
Fri, Oct 16 - Fri, Oct 23
Delta Logo
12:10 pm - 9:30 am
SAT
-
KEF
16h 20m
1 stop
Delta Logo
11:25 am - 10:56 am
KEF
-
SAT
28h 31m
1 stop
$857Delta
Fri, Oct 16 - Fri, Oct 23
Multiple Airlines Logo
7:49 pm - 6:00 am
SAT
-
KEF
29h 11m
1 stop
Multiple Airlines Logo
10:45 am - 6:54 pm
KEF
-
SAT
13h 09m
1 stop
$861Multiple Airlines
Wed, Aug 12 - Tue, Aug 18
United Airlines Logo
7:00 am - 7:55 am
SAT
-
KEF
19h 55m
2 stops
United Airlines Logo
9:15 am - 8:42 pm
KEF
-
SAT
40h 27m
2 stops
$864United Airlines
Thu, Oct 1 - Wed, Oct 7
United Airlines Logo
6:35 am - 7:55 am
SAT
-
KEF
20h 20m
2 stops
United Airlines Logo
9:15 am - 8:42 pm
KEF
-
SAT
40h 27m
2 stops
$865United Airlines
Thu, Oct 1 - Wed, Oct 7
Multiple Airlines Logo
7:49 pm - 6:00 am
SAT
-
KEF
29h 11m
1 stop
Multiple Airlines Logo
10:45 am - 6:54 pm
KEF
-
SAT
13h 09m
1 stop
$868Multiple Airlines
Sat, Aug 15 - Fri, Aug 21

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Air Canada flights from San Antonio to Reykjavik Keflavik Intl Airport

Our best Air Canada deals on San Antonio to Reykjavik Keflavik Intl Airport flight tickets
Air Canada
Oct 1
SAT9:48 amSan Antonio
17h 07m
3 stops
KEF7:55 amReykjavik Keflavik Intl
Oct 7
KEF9:15 amReykjavik Keflavik Intl
16h 58m
2 stops
SAT9:13 pmSan Antonio
$894
Air Canada
Oct 1
SAT9:48 amSan Antonio
17h 07m
3 stops
KEF7:55 amReykjavik Keflavik Intl
Oct 7
KEF9:15 amReykjavik Keflavik Intl
18h 35m
3 stops
SAT10:50 pmSan Antonio
$904
Air Canada
Aug 12
SAT12:15 pmSan Antonio
14h 40m
2 stops
KEF7:55 amReykjavik Keflavik Intl
Aug 18
KEF9:15 amReykjavik Keflavik Intl
42h 35m
2 stops
SAT10:50 pmSan Antonio
$977

United Airlines flights from San Antonio to Reykjavik Keflavik Intl Airport

Our best United Airlines deals on San Antonio to Reykjavik Keflavik Intl Airport flight tickets
United Airlines
Oct 5
SAT4:17 pmSan Antonio
34h 38m
3 stops
KEF7:55 amReykjavik Keflavik Intl
Oct 13
KEF10:00 amReykjavik Keflavik Intl
31h 11m
2 stops
SAT12:11 pmSan Antonio
$779
United Airlines
Oct 16
SAT6:35 amSan Antonio
21h 15m
1 stop
KEF8:50 amReykjavik Keflavik Intl
Oct 23
KEF9:15 amReykjavik Keflavik Intl
36h 37m
2 stops
SAT4:52 pmSan Antonio
$831
United Airlines
Oct 16
SAT5:30 amSan Antonio
22h 20m
2 stops
KEF8:50 amReykjavik Keflavik Intl
Oct 23
KEF9:15 amReykjavik Keflavik Intl
36h 15m
2 stops
SAT4:30 pmSan Antonio
$836

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 June 23, 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

Price

Cheapest round-trip

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Mon 10/5

4:17 pm-7:55 am

3 stops34h 38m

Reykjavik Keflavik Intl

Tue 10/13

10:00 am-12:11 pm

2 stops31h 11m

$779
Quickest round-trip

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Mon 10/5

1:20 pm-9:30 am

1 stop15h 10m

Reykjavik Keflavik Intl

Tue 10/13

11:25 am-11:20 pm

2 stops16h 55m

$796

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Mon 10/5

1:20 pm-9:30 am

1 stop15h 10m

Reykjavik Keflavik Intl

Tue 10/13

11:25 am-10:56 am

1 stop28h 31m

$797

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Fri 10/16

6:35 am-8:50 am

1 stop21h 15m

Reykjavik Keflavik Intl

Fri 10/23

9:15 am-4:52 pm

2 stops36h 37m

$831

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Fri 10/16

5:30 am-8:50 am

2 stops22h 20m

Reykjavik Keflavik Intl

Fri 10/23

9:15 am-4:30 pm

2 stops36h 15m

$836

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-10:56 am

1 stop28h 31m

$857

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Wed 8/12

7:49 pm-6:00 am

1 stop29h 11m

Reykjavik Keflavik Intl

Tue 8/18

10:45 am-6:54 pm

1 stop13h 09m

$861

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Thu 10/1

7:00 am-7:55 am

2 stops19h 55m

Reykjavik Keflavik Intl

Wed 10/7

9:15 am-8:42 pm

2 stops40h 27m

$864

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Thu 10/1

6:35 am-7:55 am

2 stops20h 20m

Reykjavik Keflavik Intl

Wed 10/7

9:15 am-8:42 pm

2 stops40h 27m

$865

San AntonioReykjavik

SAT - KEF

SATKEF

San Antonio

Sat 8/15

7:49 pm-6:00 am

1 stop29h 11m

Reykjavik Keflavik Intl

Fri 8/21

10:45 am-6:54 pm

1 stop13h 09m

$868

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 airline that flies from San Antonio to Reykjavik Keflavik Intl?

WestJet, Delta, and KLM are the most popular carriers operating from San Antonio to Reykjavik Keflavik Intl

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

Fastest flight time

10h 18m

Direct flights

None
The fastest flight from San Antonio to Reykjavik Keflavik Intl Airport takes 10h 18m
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.
Search flight deals

Frequently asked questions about flying from San Antonio to Reykjavik Keflavik Intl Airport

  • 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 10h 18m.

  • 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 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.

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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