SAT - KEF

$604 Find Cheap Flights from San Antonio to Reykjavik

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to Keflavik Intl departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Reykjavik Keflavik Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to Reykjavik, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to Reykjavik, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$604
Finnair
Wed 11/12Mon 11/17
SAT - KEF • 2 stops
Cheapest one-way
$604
Multiple Airlines
Fri 11/28
SAT - KEF • 1 stop
Top airlines
Finnair
Cheapest • from $604 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Booking Insights
Flight Deals

Cheap Flights from San Antonio to Reykjavik (SAT-KEF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to Reykjavik that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Antonio to Keflavik Intl

Wed, Nov 12 - Mon, Nov 17
Finnair Logo
12:55 pm - 9:15 amSAT-KEF
38h 20m2 stops
Finnair Logo
9:45 am - 6:00 pmKEF-SAT
38h 15m2 stops
$604Finnair
Find Deal
Tue, Nov 18 - Tue, Nov 25
Multiple Airlines Logo
7:37 pm - 6:15 amSAT-KEF
28h 38m3 stops
Multiple Airlines Logo
5:00 pm - 6:32 pmKEF-SAT
31h 32m2 stops
$709Multiple Airlines
Find Deal
Tue, Nov 18 - Tue, Nov 25
Multiple Airlines Logo
10:58 am - 6:30 amSAT-KEF
13h 32m2 stops
Multiple Airlines Logo
5:00 pm - 3:59 pmKEF-SAT
28h 59m2 stops
$726Multiple Airlines
Find Deal
Fri, Jan 16 - Mon, Jan 19
Finnair Logo
1:08 pm - 5:15 pmSAT-KEF
22h 07m2 stops
Finnair Logo
9:45 am - 7:15 pmKEF-SAT
39h 30m2 stops
$729Finnair
Find Deal
Tue, Nov 18 - Tue, Nov 25
Multiple Airlines Logo
6:32 am - 6:15 amSAT-KEF
17h 43m1 stop
Multiple Airlines Logo
5:00 pm - 5:00 amKEF-SAT
18h 00m1 stop
$766Multiple Airlines
Find Deal
Mon, Jan 19 - Fri, Jan 23
Scandinavian Airlines Logo
2:10 pm - 3:25 pmSAT-KEF
19h 15m2 stops
Scandinavian Airlines Logo
3:40 pm - 11:33 pmKEF-SAT
37h 53m2 stops
$771Scandinavian Airlines
Find Deal
Mon, Nov 17 - Fri, Nov 21
Scandinavian Airlines Logo
1:05 pm - 3:25 pmSAT-KEF
20h 20m2 stops
Scandinavian Airlines Logo
11:30 am - 12:08 amKEF-SAT
42h 38m2 stops
$1,031Scandinavian Airlines
Find Deal
Sat, Nov 22 - Fri, Nov 28
British Airways Logo
5:47 pm - 5:05 pmSAT-KEF
17h 18m2 stops
British Airways Logo
6:10 pm - 5:13 pmKEF-SAT
29h 03m2 stops
$1,267British Airways
Find Deal
Tue, Nov 18 - Sat, Nov 29
British Airways Logo
2:42 pm - 10:45 amSAT-KEF
38h 03m2 stops
British Airways Logo
11:55 am - 2:45 amKEF-SAT
44h 50m2 stops
$1,895British Airways
Find Deal
Tue, Nov 18 - Sat, Nov 29
Alaska Airlines Logo
6:32 am - 6:15 amSAT-KEF
17h 43m2 stops
Alaska Airlines Logo
5:00 pm - 5:00 amKEF-SAT
18h 00m1 stop
$2,272Alaska Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for San Antonio to Keflavik Intl flights

Get data-powered insights and trends into flights from San Antonio to Keflavik Intl to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from San Antonio to Reykjavik?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from San Antonio to Reykjavik were found on Finnair ($604) and Scandinavian Airlines ($771).

Which airlines fly non-stop between San Antonio and Reykjavik Keflavik Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from San Antonio to Reykjavik Keflavik Intl Airport.

There are 3 airlines that fly nonstop from San Antonio to Reykjavik Keflavik Intl Airport. They are: Delta, KLM and United Airlines. The cheapest price of all airlines flying this route was found with KLM at $474 for a round-trip flight. On average, the best prices for this route can be found at KLM.

Good to know

Cheapest flight$604
Flight from San Antonio to Reykjavik

When to book flights from San Antonio to Keflavik Intl

Are your dates flexible? Find out the best times to travel from San Antonio to Keflavik Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Antonio to Reykjavik flights

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

    In the last 3 days, the lowest price for a flight from San Antonio to Reykjavik Keflavik Intl Airport was $604 for a one-way ticket and $604 for a round-trip.

  • Do I need a passport to fly between San Antonio and Reykjavik?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Antonio and on arrival in Reykjavik.

  • Which airports will I be using when flying from San Antonio to Reykjavik?

    San Antonio and Reykjavik are both served by 1 main airport. You will leave San Antonio from San Antonio and will be arriving at Reykjavik Keflavik Intl.

  • Which aircraft models fly most regularly from San Antonio to Reykjavik?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Antonio to Reykjavik?

    Star Alliance, and SkyTeam are the airline alliances operating flights between San Antonio and Reykjavik, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from San Antonio to Reykjavik, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from San Antonio to Reykjavik are Delta and KLM. With an average price for the route of $996 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $808 and an overall rating of 7.7.

  • How does KAYAK find such low prices on flights from San Antonio to Reykjavik?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Antonio to Reykjavik.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Antonio to Reykjavik?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reykjavik from San Antonio is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Antonio to Reykjavik?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reykjavik with an airline and back to San Antonio with another airline. Booking your flights between San Antonio and KEF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Antonio to Reykjavik?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reykjavik from San Antonio up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from San Antonio to Keflavik Intl

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to Reykjavik. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Antonio to Keflavik Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7982 reviews
7.9Entertainment
7.3Food
8.2Boarding
7.9Comfort
8.5Crew
Airline reviews

Old plane and old configuration/seats but still comfortable for a morning flight

10.0 ExcellentBraulio, Oct 2025ATL - SDQ
Read more Delta reviews

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

A little bit more leg room in premium economy. I am 6’4”.

Overall it was good. I missed my connection but I was put on another flight.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Everything you need to know for your flight from San Antonio to Keflavik Intl

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