$159 Cheap Flights from Houston (IAH) to St. George (SGU)

View $159 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to St. George Regional Airport (SGU)

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Cheap Flights from Houston to St. George (IAH-SGU)

Prices were available within the past 7 days and start at $159 for one-way flights and $248 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Nov 7 - Tue, Nov 11
IAH
Houston
SGU
St. George
$248 Roundtrip, found 15 hours ago
$248
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Nov 7 from Houston to St. George, returning Tue, Nov 11, priced at $248 found 15 hours ago
American Airlines
Sat, Sep 13 - Wed, Sep 17
IAH
Houston
SGU
St. George
$254 Roundtrip, found 12 hours ago
$254
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Sat, Sep 13 from Houston to St. George, returning Wed, Sep 17, priced at $254 found 12 hours ago
Delta
Mon, Aug 25 - Wed, Sep 10
IAH
Houston
SGU
St. George
$259 Roundtrip, found 6 days ago
$259
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Aug 25 from Houston to St. George, returning Wed, Sep 10, priced at $259 found 6 days ago
Delta
Tue, Sep 2 - Wed, Sep 17
IAH
Houston
SGU
St. George
$263 Roundtrip, found 2 days ago
$263
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 2 from Houston to St. George, returning Wed, Sep 17, priced at $263 found 2 days ago
Delta
Tue, Nov 4 - Thu, Nov 13
IAH
Houston
SGU
St. George
$269 Roundtrip, found 15 hours ago
$269
Roundtrip
found 15 hours ago
Select Delta flight, departing Tue, Nov 4 from Houston to St. George, returning Thu, Nov 13, priced at $269 found 15 hours ago
United
Thu, Aug 21 - Mon, Aug 25
IAH
Houston
SGU
St. George
$271 Roundtrip, found 20 hours ago
$271
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Aug 21 from Houston to St. George, returning Mon, Aug 25, priced at $271 found 20 hours ago
United
Wed, Aug 27 - Sun, Aug 31
IAH
Houston
SGU
St. George
$277 Roundtrip, found 17 hours ago
$277
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Aug 27 from Houston to St. George, returning Sun, Aug 31, priced at $277 found 17 hours ago
American Airlines
Thu, Aug 7 - Sat, Aug 9
IAH
Houston
SGU
St. George
$278 Roundtrip, found 5 days ago
$278
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Aug 7 from Houston to St. George, returning Sat, Aug 9, priced at $278 found 5 days ago
United
Thu, Aug 21 - Mon, Aug 25
IAH
Houston
SGU
St. George
$280 Roundtrip, found 20 hours ago
$280
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Aug 21 from Houston to St. George, returning Mon, Aug 25, priced at $280 found 20 hours ago
Delta
Fri, Oct 31 - Tue, Nov 11
IAH
Houston
SGU
St. George
$283 Roundtrip, found 2 days ago
$283
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Oct 31 from Houston to St. George, returning Tue, Nov 11, priced at $283 found 2 days ago

Find the cheapest month to fly from Houston (IAH) to St. George (SGU)

August is typically the cheapest month to fly

From $248 - $448 per traveler.

Graph displaying average flight prices per month

Alternative airports near St. George

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

Select flight to St. George Regional Airport SGU. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $298
SGU
St. George Regional Airport
CheapestClosest
Average driving time to city center20 min
Flights from $298
Flights from Houston (IAH) to St. George (SGU)
Origin airport
George Bush Intercontinental
Destination airport
St. George
Airlines serving
American Airlines, Delta, United
Roundtrip price
$248
Distance
1151 mi

Houston to St. George Flights

The cheapest times to fly from Houston to St. George

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 Houston to St. George are during the month of November. You can find some of the cheapest flights from Houston to St. George with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to St. George

Sunday is one of the best days to book for cheap flights from Houston to St. George: 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 Houston to St. George

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 Houston to St. George in 2025. You can also book with separate airlines for your outbound and return journeys, from $159 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 Houston to St. George 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 Houston to St. George 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 George Bush Intercontinental Airport (IAH) to St. George Airport (SGU) cost?
Discover the latest flight deals from IAH to SGU by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAH to SGU?
The cheapest flights from IAH to SGU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAH to SGU?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IAH to SGU. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from George Bush Intercontinental Airport (IAH) to St. George Airport (SGU)?
Nonstop flights from George Bush Intercontinental Airport (IAH) to St. George Airport (SGU) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAH to SGU?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to St. George Airport (SGU)?
To land at St. George Airport (SGU) without delays, pick a flight that takes off from George Bush Intercontinental Airport (IAH) 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.
Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to St. George Airport (SGU) last-minute?
Booking your plane ticket from IAH to SGU shortly before your journey is generally more expensive. But if you're flexible with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book an IAH to SGU flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAH to SGU flight and hotel package with Expedia could lead to significant savings. What's more, managing everything in one place will take the stress out of travel planning. Just secure your flights and select from our extensive range of hotels, then customize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to St. George Airport (SGU)?
It's generally possible to reschedule or cancel your IAH to SGU flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.