$91 Find Cheap Flights from San Antonio to Houston

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 Houston departing on 4/18. 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 Houston

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

Cheapest round-trip
$189
Overall average: $334
Frontier
Tue 4/14Tue 4/21
SAT - IAH • 1 stop
Cheapest non-stop
$237
Typical prices: $264-$404
United Airlines
Tue 4/14Tue 4/21
SAT - IAH • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Southwest's two free checked bags suit luggage needs.
HOU is closer to downtown than IAH for faster access.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $189 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Southwest and United Airlines. Average duration is 1h 05m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 2% average savings
Most popular
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 85% on-time
Best time • Fewest delays
Insights
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We hope you love your trip to Houston!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from San Antonio to Houston (SAT-HOU)

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

Tue, Apr 14 - Tue, Apr 21
Frontier Logo
4:04 pm - 11:56 pm
SAT
-
IAH
7h 52m
1 stop
Frontier Logo
4:02 pm - 3:53 pm
IAH
-
SAT
23h 51m
1 stop
$189Frontier
Thu, Apr 2 - Mon, Apr 6
Frontier Logo
6:45 am - 12:48 am
SAT
-
IAH
18h 03m
1 stop
Frontier Logo
10:28 pm - 12:19 am
IAH
-
SAT
25h 51m
1 stop
$200Frontier
Wed, Apr 15 - Wed, Apr 22
Frontier Logo
4:49 pm - 11:56 pm
SAT
-
IAH
7h 07m
1 stop
Frontier Logo
7:45 am - 3:53 pm
IAH
-
SAT
8h 08m
1 stop
$215Frontier
Thu, Apr 9 - Mon, Apr 13
Multiple Airlines Logo
6:45 am - 10:05 pm
SAT
-
IAH
15h 20m
1 stop
Multiple Airlines Logo
11:42 am - 9:27 am
IAH
-
SAT
21h 45m
1 stop
$220Multiple Airlines
Thu, Apr 9 - Mon, Apr 13
Multiple Airlines Logo
6:45 am - 12:48 am
SAT
-
IAH
18h 03m
1 stop
Multiple Airlines Logo
11:42 am - 9:27 am
IAH
-
SAT
21h 45m
1 stop
$221Multiple Airlines
Mon, Apr 6 - Wed, Apr 8
Multiple Airlines Logo
10:22 am - 8:40 am
SAT
-
IAH
22h 18m
1 stop
Multiple Airlines Logo
9:50 am - 12:19 am
IAH
-
SAT
14h 29m
1 stop
$225Multiple Airlines
Thu, Apr 9 - Mon, Apr 13
Spirit Airlines Logo
10:22 am - 11:59 pm
SAT
-
IAH
13h 37m
1 stop
Spirit Airlines Logo
4:22 pm - 9:27 am
IAH
-
SAT
17h 05m
1 stop
$227Spirit Airlines
Thu, Apr 2 - Mon, Apr 6
Frontier Logo
6:45 am - 12:48 am
SAT
-
IAH
18h 03m
1 stop
Frontier Logo
10:28 pm - 12:19 am
IAH
-
SAT
25h 51m
1 stop
$228Frontier
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
5:05 pm - 6:10 pm
SAT
-
HOU
1h 05mnonstop
Southwest Logo
2:50 pm - 3:50 pm
HOU
-
SAT
1h 00mnonstop
$237Southwest
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
9:40 am - 1:45 pm
SAT
-
HOU
4h 05m
1 stop
Southwest Logo
2:50 pm - 3:50 pm
HOU
-
SAT
1h 00mnonstop
$247Southwest
Booking Insights

KAYAK's insights & trends for San Antonio to Houston flights

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

What is the cheapest San Antonio to Houston flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The absolute cheapest return flight from San Antonio to Houston costs $257 on the route between San Antonio (SAT) and Houston George Bush Intcntl Airport (IAH). However, over the past month, flights between San Antonio (SAT) and Houston Hobby Airport (HOU) were, on average, 2% cheaper than other San Antonio-Houston routes. The most popular route is between San Antonio (SAT) and Houston George Bush Intcntl Airport (IAH).

What’s the cheapest day of the week to fly from San Antonio to Houston?

The average price of all round-trip flights from San Antonio to Houston clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Houston on a Thursday and more expensive on a Saturday. On your return trip to San Antonio, you should consider flying back on a Thursday, and avoid Mondays for better deals.

What is the cheapest month to fly from San Antonio to Houston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio to Houston, 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 Houston is October, where tickets cost $159 (return) on average. On the other hand, the most expensive months are July and January, where the average cost of round-trip tickets is $524 and $440 respectively.

Expert advice

Expert advice for your flight from San Antonio to Houston

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
John Walton

John Walton

Expert on IAH

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Brandon Schultz

Brandon Schultz

Expert on SAT

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Yulia Denisyuk

Yulia Denisyuk

Expert on HOU

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Good to know

Cheapest flight$91
Flight from San Antonio to Houston George Bush Airport

When to book flights from San Antonio to Houston

Are your dates flexible? Find out the best times to travel from San Antonio to Houston 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 flights from San Antonio to Houston

  • What is the cheapest flight from San Antonio to Houston?

    In the last 3 days, the lowest price for a flight from San Antonio to Houston was $91 for a one-way ticket and $189 for a round-trip.

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

    Yes, you’ll need a passport to travel to Houston from San Antonio.

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

    San Antonio is served by only 1 airport and there are 2 airports in Houston. You will leave San Antonio from San Antonio and you will be arriving in Houston at one of these airports: Houston Hobby or Houston George Bush Intcntl.

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

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

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

    Star Alliance is the only airline alliance operating flights between San Antonio and Houston.

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

    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 Houston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston 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 Houston?

    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 Houston with an airline and back to San Antonio with another airline.

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

    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 Houston from San Antonio up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from San Antonio to Houston?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Antonio to Houston.
Find which airlines fly direct from San Antonio Airport to Houston, which days they fly and book direct flights.

Direct departures

San Antonio to Houston

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more direct flights

Direct returns

Houston to San Antonio

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more direct flights

Reviews of the top airlines flying from San Antonio to Houston

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to Houston. 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 Houston? 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 4320 reviews
8.0Comfort
8.6Crew
8.1Boarding
7.5Entertainment
7.0Food
Airline reviews

I elected to pay for the upgrades and found very little difference

6.0 GoodChris, Mar 2026
DAL - SAT
Read more Southwest reviews

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

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

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

No delays and arrived to destination 30 min early. Staff was super friendly.

Everything was on time and service on the flight was great!

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Very old flight - time to retire it for newer airplanes

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Everything except the food and entertainment. It was a great experience though

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

Everything you need to know for your flight from San Antonio to Houston

Information on your arrival and departure airports