SAT - KEF

$553 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 4/17. 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, 0 bags

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
$553
Lufthansa
Fri 4/17Mon 4/20
SAT - KEF • 2 stops
Cheapest one-way
Multiple Airlines
Thu 1/22
SAT - KEF • multi-stop
Top airlines
Lufthansa
Cheapest • from $553 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Antonio to Keflavik Intl (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 Keflavik Intl 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, Apr 17 - Mon, Apr 20
Lufthansa Logo
5:30 pm - 11:25 pm
SAT
-
KEF
24h 55m
2 stops
Lufthansa Logo
12:20 am - 10:53 pm
KEF
-
SAT
27h 33m
2 stops
$553Lufthansa
Thu, Feb 19 - Thu, Feb 26
Lufthansa Logo
12:17 pm - 2:20 pm
SAT
-
KEF
20h 03m
2 stops
Lufthansa Logo
3:10 pm - 11:12 pm
KEF
-
SAT
38h 02m
2 stops
$834Lufthansa
Thu, Feb 19 - Thu, Feb 26
Alaska Airlines Logo
6:10 pm - 6:15 am
SAT
-
KEF
30h 05m
1 stop
Alaska Airlines Logo
5:00 pm - 5:10 pm
KEF
-
SAT
30h 10m
1 stop
$941Alaska Airlines
Fri, Apr 17 - Tue, Apr 21
Virgin Atlantic Logo
1:15 pm - 9:30 am
SAT
-
KEF
15h 15m
1 stop
Virgin Atlantic Logo
11:25 am - 11:08 pm
KEF
-
SAT
16h 43m
2 stops
$943Virgin Atlantic
Tue, Mar 17 - Tue, Mar 24
Multiple Airlines Logo
1:22 pm - 12:15 am
SAT
-
KEF
29h 53m
3 stops
Multiple Airlines Logo
5:00 pm - 12:27 pm
KEF
-
SAT
24h 27m
2 stops
$971Multiple Airlines
Thu, Feb 19 - Thu, Feb 26
Alaska Airlines Logo
6:10 pm - 6:15 am
SAT
-
KEF
30h 05m
1 stop
Alaska Airlines Logo
5:00 pm - 5:10 pm
KEF
-
SAT
30h 10m
1 stop
$990Alaska Airlines
Fri, Apr 17 - Tue, Apr 21
Multiple Airlines Logo
6:15 am - 6:00 am
SAT
-
KEF
18h 45m
1 stop
Multiple Airlines Logo
7:50 pm - 12:50 pm
KEF
-
SAT
22h 00m
1 stop
$997Multiple Airlines
Tue, Feb 3 - Fri, Feb 6
Alaska Airlines Logo
6:46 pm - 6:15 am
SAT
-
KEF
29h 29m
1 stop
Alaska Airlines Logo
5:00 pm - 5:45 pm
KEF
-
SAT
30h 45m
1 stop
$1,053Alaska Airlines
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
1:57 pm - 6:20 pm
SAT
-
KEF
22h 23m
2 stops
Multiple Airlines Logo
4:55 pm - 7:37 pm
KEF
-
SAT
32h 42m
1 stop
$1,079Multiple Airlines
Tue, Mar 17 - Tue, Mar 24
Multiple Airlines Logo
6:45 am - 6:05 am
SAT
-
KEF
18h 20m
1 stop
Multiple Airlines Logo
5:00 pm - 12:27 pm
KEF
-
SAT
24h 27m
2 stops
$1,087Multiple Airlines
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 Lufthansa ($553) and Delta ($645).

Good to know

Cheapest flight$553
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 $735 for a one-way ticket and $553 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, and Star Alliance 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 United Airlines?

    The two airlines most popular with KAYAK users for flights from San Antonio to Reykjavik are Delta and United Airlines. With an average price for the route of $981 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $970 and an overall rating of 7.4.

  • 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 airlines flying 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 8088 reviews
8.1Boarding
7.8Entertainment
7.2Food
7.9Comfort
8.5Crew
Airline reviews

There was no wifi available on this flight. And there were no screens, no onboard entertainment, no entertainment options at all. It was like travelling in the 1990s again, except without even a main screen for options. Seats, as usual, were tight and uncomfortable.

4.0 OkayJohn, Jan 2026
DAL - ATL
Read more Delta reviews

There was no wifi available on this flight. And there were no screens, no onboard entertainment, no entertainment options at all. It was like travelling in the 1990s again, except without even a main screen for options. Seats, as usual, were tight and uncomfortable.

Good seat comfort ORF to ATL. Bad seat ATL to SEA (terrible lumbar support, hard, ouch)..

Because I was moved to an exit row, the snacks in economy comfort, the selection of snacks was better.

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

Easiest airport experience ever in my life at MSP with Delta check-in and flight attendant gave us a bottle of champagne in celebration of our 10-year wedding anniversary, so overall amazing!

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

Delayed, toilets did not flush, pilot parked to far away from Gate

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

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.

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

Information on your arrival and departure airports