$392 Find Cheap Flights from San Antonio to Kaua'i

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 Kaua'i departing on 2/21. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Kaua'i

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to Kaua'i, 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 Kaua'i, as well as popular online travel agencies
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Book Cheap San Antonio to Kaua'i Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to Kaua'i 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 Kaua'i

Sat, Feb 21 - Tue, Feb 24
Southwest Logo
7:05 am - 4:25 pm
SAT
-
LIH
13h 20m
2 stops
Southwest Logo
7:05 pm - 11:55 am
LIH
-
SAT
12h 50m
2 stops
$498Southwest
Wed, May 27 - Wed, Jun 3
American Airlines Logo
3:01 pm - 8:52 pm
SAT
-
LIH
10h 51m
1 stop
American Airlines Logo
10:35 pm - 2:31 pm
LIH
-
SAT
10h 56m
1 stop
$521American Airlines
Tue, May 12 - Tue, May 19
United Airlines Logo
1:11 pm - 11:46 am
SAT
-
LIH
27h 35m
2 stops
United Airlines Logo
12:57 pm - 12:56 pm
LIH
-
SAT
18h 59m
2 stops
$523United Airlines
Sat, Feb 21 - Tue, Feb 24
Southwest Logo
7:05 am - 4:25 pm
SAT
-
LIH
13h 20m
2 stops
Southwest Logo
9:15 pm - 1:25 pm
LIH
-
SAT
12h 10m
1 stop
$526Southwest
Tue, May 12 - Tue, May 19
American Airlines Logo
5:00 am - 12:22 pm
SAT
-
LIH
12h 22m
2 stops
American Airlines Logo
9:30 pm - 7:38 pm
LIH
-
SAT
17h 08m
1 stop
$538American Airlines
Thu, Apr 23 - Tue, Apr 28
Alaska Airlines Logo
6:01 pm - 9:44 am
SAT
-
LIH
20h 43m
2 stops
Alaska Airlines Logo
10:26 pm - 5:05 pm
LIH
-
SAT
13h 39m
1 stop
$542Alaska Airlines
Thu, Apr 23 - Tue, Apr 28
Multiple Airlines Logo
6:01 pm - 2:23 pm
SAT
-
LIH
25h 22m
2 stops
Multiple Airlines Logo
10:26 pm - 5:05 pm
LIH
-
SAT
13h 39m
1 stop
$544Multiple Airlines
Thu, Apr 23 - Tue, Apr 28
Multiple Airlines Logo
6:01 pm - 9:44 am
SAT
-
LIH
20h 43m
2 stops
Multiple Airlines Logo
3:44 pm - 5:05 pm
LIH
-
SAT
20h 21m
2 stops
$547Multiple Airlines
Thu, Apr 23 - Tue, Apr 28
Alaska Airlines Logo
6:01 pm - 9:26 pm
SAT
-
LIH
32h 25m
1 stop
Alaska Airlines Logo
10:26 pm - 5:05 pm
LIH
-
SAT
13h 39m
1 stop
$571Alaska Airlines
Wed, May 27 - Wed, Jun 3
Multiple Airlines Logo
6:01 pm - 2:00 pm
SAT
-
LIH
24h 59m
2 stops
Multiple Airlines Logo
10:26 pm - 5:05 pm
LIH
-
SAT
13h 39m
1 stop
$591Multiple Airlines
Booking Insights

KAYAK's insights & trends for San Antonio to Kaua'i flights

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

Can I save money by flying with a layover from San Antonio to Kaua'i?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $347, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from San Antonio to Kaua'i?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio to Kaua'i, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Antonio to Kaua'i is February, when tickets cost $515 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $978 and $888 respectively.

Good to know

Low seasonNovember
Cheapest flight$498
Most popular time to fly and prices are also 8% lower on average.
Flight from San Antonio to Lihue

FAQs - booking Kaua'i flights

  • How does KAYAK find such low prices on flights from San Antonio to Kaua'i?

    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 Kaua'i.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Antonio to Kaua'i 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 Kaua'i?

    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 from San Antonio to Kaua'i with an airline and back with another airline.

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

    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 from San Antonio to Kaua'i 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 Kaua'i

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to Kaua'i. 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 Kaua'i? 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.
8.0
SouthwestOverall score based on 4273 reviews
8.0Comfort
8.6Crew
7.0Food
8.1Boarding
7.5Entertainment
Airline reviews

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

10.0 ExcellentAnonymous, Feb 2026
MSY - PHX
Read more Southwest reviews

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great vacation. Can't wait till next year for another one.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

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

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

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

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

Older aircraft, no meal, only food was for purchase. Not impressed United.

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.

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.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

The seat cushions were very worn so they were extremely uncomfortable.

Delayed, no updates, had a rewards number but was not working

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

Everything you need to know for your flight to Kaua'i

Information on your arrival and departure airports