$49 Cheap Flights from San Antonio (SAT) to Houston (IAH)

View $49 flight on Wed, Sep 3, 2025Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to George Bush Intercontinental Airport (IAH)

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

Prices were available within the past 7 days and start at $49 for one-way flights and $94 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Aug 25 - Thu, Aug 28
SAT
San Antonio
IAH
Houston
$94 Roundtrip, found 3 days ago
$94
Roundtrip
found 3 days ago
Select United flight, departing Mon, Aug 25 from San Antonio to Houston, returning Thu, Aug 28, priced at $94 found 3 days ago
United
Tue, Aug 26 - Tue, Sep 2
SAT
San Antonio
IAH
Houston
$95 Roundtrip, found 4 days ago
$95
Roundtrip
found 4 days ago
Select United flight, departing Tue, Aug 26 from San Antonio to Houston, returning Tue, Sep 2, priced at $95 found 4 days ago
United
Sat, Sep 6 - Mon, Sep 8
SAT
San Antonio
IAH
Houston
$96 Roundtrip, found 5 days ago
$96
Roundtrip
found 5 days ago
Select United flight, departing Sat, Sep 6 from San Antonio to Houston, returning Mon, Sep 8, priced at $96 found 5 days ago
United
Sat, Aug 23 - Wed, Aug 27
SAT
San Antonio
IAH
Houston
$97 Roundtrip, found 5 hours ago
$97
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Aug 23 from San Antonio to Houston, returning Wed, Aug 27, priced at $97 found 5 hours ago
United
Tue, Aug 26 - Tue, Sep 2
SAT
San Antonio
IAH
Houston
$105 Roundtrip, found 4 days ago
$105
Roundtrip
found 4 days ago
Select United flight, departing Tue, Aug 26 from San Antonio to Houston, returning Tue, Sep 2, priced at $105 found 4 days ago
United
Sat, Sep 6 - Mon, Sep 8
SAT
San Antonio
IAH
Houston
$106 Roundtrip, found 5 days ago
$106
Roundtrip
found 5 days ago
Select United flight, departing Sat, Sep 6 from San Antonio to Houston, returning Mon, Sep 8, priced at $106 found 5 days ago
United
Tue, Aug 26 - Wed, Aug 27
SAT
San Antonio
IAH
Houston
$110 Roundtrip, found 4 days ago
$110
Roundtrip
found 4 days ago
Select United flight, departing Tue, Aug 26 from San Antonio to Houston, returning Wed, Aug 27, priced at $110 found 4 days ago
Spirit Airlines
Tue, Nov 4 - Sat, Nov 8
SAT
San Antonio
IAH
Houston
$124 Roundtrip, found 5 days ago
$124
Roundtrip
found 5 days ago
Select Spirit Airlines flight, departing Tue, Nov 4 from San Antonio to Houston, returning Sat, Nov 8, priced at $124 found 5 days ago
American Airlines
Wed, Sep 10 - Tue, Sep 16
SAT
San Antonio
IAH
Houston
$147 Roundtrip, found 20 hours ago
$147
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Wed, Sep 10 from San Antonio to Houston, returning Tue, Sep 16, priced at $147 found 20 hours ago
Delta
Sat, Oct 18 - Sat, Nov 1
SAT
San Antonio
IAH
Houston
$423 Roundtrip, just found
$423
Roundtrip
just found
Select Delta flight, departing Sat, Oct 18 from San Antonio to Houston, returning Sat, Nov 1, priced at $423 just found

Find the cheapest month to fly from San Antonio (SAT) to Houston (IAH)

September is typically the cheapest month to fly

From $77 - $502 per traveler.

Graph displaying average flight prices per month

Alternative airports near Houston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to George Bush Intercontinental IAH. Cheapest option available. Average driving time to city center is 24 minutes. Flights from $238
IAH
George Bush Intercontinental
Cheapest
Average driving time to city center24 min
Flights from $238
Flights from San Antonio (SAT) to Houston (IAH)
Origin airport
San Antonio Intl.
Destination airport
George Bush Intercontinental
Airlines serving
American Airlines, Delta, Spirit Airlines, United
Roundtrip price
$93
Distance
190 mi
Average flight time
1 hour 5 mins

San Antonio to Houston Flights

The cheapest times to fly from San Antonio to Houston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Antonio to Houston are during the month of August. You can find some of the cheapest flights from San Antonio to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Houston

Sunday is one of the best days to book for cheap flights from San Antonio to Houston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Antonio to Houston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Antonio to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $49 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Antonio to Houston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Antonio to Houston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH) cost?
You can find cheap return fares from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH) starting at $77. Grab a seat and get ready to go. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving SAT on August 18 2025 and touching down at IAH. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from SAT to IAH?
The cheapest flights from SAT to IAH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH)?
If you're departing from San Antonio Intl. Airport (SAT), you can hop on a nonstop flight to George Bush Intercontinental Airport (IAH) with United Airlines.
What is the cheapest airline that flies from SAT to IAH?
With prices starting from $39 for a one-way journey from SAT to IAH, United is currently the cheapest carrier operating this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SAT on September 25 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH)?
When taking off from San Antonio Intl. Airport (SAT), you'll have a choice from an average of 7 daily direct flights to George Bush Intercontinental Airport (IAH).
What are the most popular departure times for flights from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH)?
The 7 AM departures from SAT to IAH are the busiest. Greater demand means you'll likely pay more for these departures. If you want to save on your fare, choose a less crowded time to fly.
What day of the week has the most flights from SAT to IAH?
Friday offers the most flights from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH). Consider leaving on this day and you'll have a greater chance of finding a departure that fits your schedule.
What is the earliest flight from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH)?
The earliest flight departing from San Antonio Intl. Airport (SAT) is at around 5:30AM UTC-6. Catch this flight and you'll reach George Bush Intercontinental Airport (IAH) at approximately 6:37AM UTC-6. The total flight duration is 1h 7m.
How long does it take to fly from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH)?
It takes about 1 hour and 7 minutes to travel the 190 mi from SAT to IAH.
What airline has the least delays from SAT to IAH?
Delta Air Lines has the strongest track record for on-time direct flights from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH), with an on-time score of 100%. Use the Expedia App to look up your flight schedule before you jet off and receive notifications about any trip changes.
What is the best time to fly from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH)?
To arrive at George Bush Intercontinental Airport (IAH) on time, book a flight that leaves from San Antonio Intl. Airport (SAT) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Houston from San Antonio Intl. Airport (SAT)?
You can arrive at George Bush Intercontinental Airport (IAH) or William P. Hobby Airport (HOU) when you travel to Houston on a direct flight from San Antonio Intl. Airport (SAT).
Is it cheaper to buy a plane ticket from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH) last-minute?
Last-minute fares from SAT to IAH are usually more expensive. To secure the lowest rates, start looking for flights ahead of time. That said, if your travel plans are flexible, you may land a cheap fare right before your journey.
Is it cheaper to book a SAT to IAH flight and hotel package?
Compared with arranging flights and hotels separately, booking a SAT to IAH flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one convenient place will take the stress out of travel planning. Simply secure your flights and select from our wide range of hotels, then personalize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to George Bush Intercontinental Airport (IAH)?
Typically, you're able to reschedule or cancel your SAT to IAH flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you need further details, head to our Customer Service portal.

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