SAT - KEF

$315 Find Cheap Flights from San Antonio to Reykjavik

This is the cheapest one-way 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 9/26. 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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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

Fri, Nov 7 - Tue, Nov 11
 Logo
12:55 pm - 5:15 pmSAT-KEF
22h 20m2 stops
 Logo
10:00 am - 5:50 pmKEF-SAT
37h 50m2 stops
Fri, Nov 7 - Tue, Nov 11
 Logo
6:32 am - 6:15 amSAT-KEF
17h 43m1 stop
 Logo
5:00 pm - 5:55 pmKEF-SAT
30h 55m1 stop
Mon, Sep 29 - Wed, Oct 8
 Logo
8:37 pm - 6:15 amSAT-KEF
28h 38m2 stops
 Logo
5:00 pm - 6:18 pmKEF-SAT
30h 18m2 stops
Tue, Jan 6 - Tue, Jan 13
Finnair Logo
2:36 pm - 9:15 amSAT-KEF
36h 39m2 stops
Finnair Logo
10:00 am - 5:50 pmKEF-SAT
37h 50m2 stops
$679Finnair
Find Deal
Sat, Feb 21 - Sat, Feb 28
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8:38 pm - 10:55 amSAT-KEF
56h 17m2 stops
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6:00 pm - 12:08 amKEF-SAT
36h 08m2 stops
Sat, Sep 27 - Thu, Oct 2
Scandinavian Airlines Logo
12:15 pm - 4:45 pmSAT-KEF
23h 30m2 stops
Scandinavian Airlines Logo
5:10 pm - 10:19 pmKEF-SAT
34h 09m2 stops
$876Scandinavian Airlines
Find Deal
Mon, Sep 29 - Wed, Oct 8
KLM Logo
11:35 am - 9:30 amSAT-KEF
16h 55m1 stop
KLM Logo
8:45 am - 3:56 pmKEF-SAT
12h 11m1 stop
$959KLM
Find Deal
Tue, Nov 18 - Sat, Nov 29
Finnair Logo
12:55 pm - 9:15 amSAT-KEF
38h 20m2 stops
Finnair Logo
6:00 pm - 6:46 pmKEF-SAT
30h 46m2 stops
$1,073Finnair
Find Deal
Sat, Sep 27 - Wed, Oct 1
Lufthansa Logo
1:41 pm - 11:35 pmSAT-KEF
28h 54m2 stops
Lufthansa Logo
12:25 am - 5:54 pmKEF-SAT
22h 29m2 stops
$1,360Lufthansa
Find Deal
Sat, Sep 27 - Wed, Oct 1
Lufthansa Logo
1:41 pm - 11:35 pmSAT-KEF
28h 54m2 stops
Lufthansa Logo
12:25 am - 10:55 pmKEF-SAT
27h 30m2 stops
$1,361Lufthansa
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 ($679) and Scandinavian Airlines ($876).

Good to know

Low seasonApril
Cheapest flight$315
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 9% lower on average.
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 $315 for a one-way ticket and $654 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?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between San Antonio and Reykjavik, with SkyTeam 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 $982 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 7.8.

  • 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 7977 reviews
8.5Crew
8.2Boarding
7.9Entertainment
7.9Comfort
7.3Food
Airline reviews

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

4.0 Okaypuravi, Aug 2025LGA - STL
Read more Delta reviews

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Nothing special. The crew never went out of their way for anything.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

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.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

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

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

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

Gate agent did not hold flight for connection, provided no assistance to get new flight

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

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

Information on your arrival and departure airports

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