SAT - KEF

$598 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 11/21. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
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

Tue, Nov 11 - Tue, Nov 18
Multiple Airlines Logo
6:05 pm - 9:15 amSAT-KEF
57h 10m2 stops
Multiple Airlines Logo
10:00 am - 5:50 pmKEF-SAT
37h 50m2 stops
$636Multiple Airlines
Find Deal
Wed, Feb 25 - Sun, Mar 1
Finnair Logo
2:41 pm - 9:15 amSAT-KEF
36h 34m2 stops
Finnair Logo
10:00 am - 5:43 pmKEF-SAT
37h 43m2 stops
$667Finnair
Find Deal
Fri, Feb 13 - Sat, Feb 21
Multiple Airlines Logo
12:34 pm - 5:15 pmSAT-KEF
22h 41m2 stops
Multiple Airlines Logo
6:00 pm - 5:43 pmKEF-SAT
29h 43m2 stops
$704Multiple Airlines
Find Deal
Sat, Oct 25 - Thu, Oct 30
Scandinavian Airlines Logo
2:55 pm - 10:45 amSAT-KEF
38h 50m2 stops
Scandinavian Airlines Logo
11:30 am - 12:20 amKEF-SAT
41h 50m2 stops
$772Scandinavian Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Multiple Airlines Logo
6:32 am - 6:15 amSAT-KEF
17h 43m1 stop
Multiple Airlines Logo
5:00 pm - 5:55 pmKEF-SAT
30h 55m1 stop
$799Multiple Airlines
Find Deal
Sun, Oct 12 - Sat, Oct 18
Lufthansa Logo
7:00 am - 11:35 pmSAT-KEF
35h 35m2 stops
Lufthansa Logo
12:25 am - 9:29 pmKEF-SAT
26h 04m2 stops
$1,127Lufthansa
Find Deal
Thu, Nov 20 - Thu, Nov 27
American Airlines Logo
5:39 pm - 5:15 pmSAT-KEF
17h 36m2 stops
American Airlines Logo
11:45 am - 6:46 pmKEF-SAT
37h 01m2 stops
$1,160American Airlines
Find Deal
Mon, Nov 24 - Thu, Nov 27
Scandinavian Airlines Logo
2:46 pm - 10:45 amSAT-KEF
37h 59m2 stops
Scandinavian Airlines Logo
11:30 am - 10:36 pmKEF-SAT
41h 06m2 stops
$1,222Scandinavian Airlines
Find Deal
Sat, Sep 27 - Thu, Oct 2
Delta Logo
6:35 am - 6:20 amSAT-KEF
18h 45m2 stops
Delta Logo
11:25 am - 11:25 pmKEF-SAT
17h 00m2 stops
$1,334Delta
Find Deal
Sat, Sep 27 - Wed, Oct 1
Lufthansa Logo
5:00 pm - 11:35 pmSAT-KEF
25h 35m2 stops
Lufthansa Logo
12:25 am - 5:54 pmKEF-SAT
22h 29m2 stops
$1,341Lufthansa
Find Deal

Everything you should know

Top airlines
Finnair
Cheapest • from $667 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$636
Multiple Airlines
Tue 11/11Tue 11/18
SAT - KEF • 2 stops
Cheapest one-way
$598
Finnair
Fri 11/21
SAT - KEF • 2 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Keflavik Intl!
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 ($667) and Scandinavian Airlines ($772).

Good to know

Cheapest flight$598
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 $598 for a one-way ticket and $636 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?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between San Antonio and Reykjavik, with oneworld 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 $981 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 7954 reviews
8.2Boarding
8.5Crew
7.9Entertainment
7.3Food
7.9Comfort
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

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

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

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!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

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

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

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.