Can I fly direct from St. Louis to Houston?

Yes, direct flights from St. Louis to Houston are available. Historically, approximately 46.1% of flights on this route have been direct. For journeys that include a stopover, travelers typically experience one connection. This data reflects trends observed over a 90-day period.

How much more do direct flights from St. Louis to Houston cost?

Historically, direct flights from St. Louis to Houston are about 14% more expensive than connecting flights. The median price for a direct flight is $337, while connecting flights have a median price of $295. Direct flights account for approximately 49.9% of the available options on this route, based on data from the trailing 90 days.

Flights From St. Louis

To Houston

Cheap Flights from St. Louis to Houston

Q: How long is the flight from St. Louis to Houston?

The median direct flight time from St. Louis to Houston is approximately 2 hours and 19 minutes, covering a distance of 1076 kilometers. For flights with one stop, the median duration extends to about 5 hours and 59 minutes. Travelers should account for these differences when planning their journey.

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St. Louis

RatePunk searches hundreds of travel sites at once for deals on flights to Houston

Prices updated 5 days ago

459 airlines compared

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Fares are subject to change and may not be available for all dates. (Data last updated Sep 7, 2026.)

Today’s best flight deals from St. Louis to Houston

Explore current cheapest deals departing from St. Louis to Houston

2026-09-23 – 2026-10-14
STL - Houston
75% AI deal score
$283
$121
Round trip
2026-09-23 – 2026-10-21
STL - Houston
75% AI deal score
$283
$121
Round trip
2026-09-23 – 2026-10-06
STL - Houston
76% AI deal score
$296
$121
Round trip
2026-09-23 – 2026-09-30
STL - Houston
77% AI deal score
$338
$122
Round trip
2026-10-07 – 2026-10-21
STL - Houston
76% AI deal score
$209
$123
Round trip
2026-09-30 – 2026-10-14
STL - Houston
75% AI deal score
$296
$123
Round trip
2026-09-30 – 2026-10-28
STL - Houston
75% AI deal score
$283
$123
Round trip
2026-10-07 – 2026-10-14
STL - Houston
78% AI deal score
$239
$123
Round trip
2026-10-07 – 2026-11-04
STL - Houston
76% AI deal score
$201
$123
Round trip
2026-09-30 – 2026-10-21
STL - Houston
75% AI deal score
$284
$123
Round trip

St. Louis to Houston: Overview

Insights for flights from St. Louis to Houston

For those looking for cheap flights from St. Louis to Houston, December stands out as the most affordable month, with a median fare of $116. Other budget-friendly options include February, where the median fare is $208, and January, with a median of $216.

Fares for flights from St. Louis to Houston typically range from $242 to $440, with a median price of $337. Right now, current fares are below the typical level for this route, and about 7% of recent fares have been classified as a good price. New deals appear almost daily, suggesting frequent opportunities for savings.

When considering how long is the flight from St. Louis to Houston, a typical journey, including connections, takes about 5h 19m. This duration reflects that a meaningful share of itineraries are non-stop, while the rest typically involve one connection. Specifically, 46.1% of recent fares for this route have been for direct flights from St. Louis to Houston.

The route from St. Louis to Houston covers a distance of 1076 kilometers. This places it in the short-haul category, indicating a relatively brief flight experience.

How much is a round trip from St. Louis to Houston

Regular price: $131 - $317

Prices for flights from St. Louis to Houston are currently within the regular range.

The regular price range for flights from St. Louis to Houston is typically between $131 and $317. The current lowest deal is $217 for travel from Oct 22-Oct 26, available via Kayak.

now $217

Low $131

High $317

The cheapest time to fly from St. Louis to Houston

The cheapest month to fly from St. Louis to Houston is December, with a median price of $116. The most expensive month is July, with a median price of $604. Prices are generally lower from January to December.

December

Cheapest

Flights from $116

July

Most Expensive

Flights from $604

Jan

Feb

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from St. Louis to Houston

Southwest Airlines

United Airlines

Last-minute flights going from St. Louis to Houston

Mon, Sep 7

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$637

$330

One-way

Mon, Sep 7

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$641

$340

One-way

Fri, Sep 11

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$624

$310

One-way

Wed, Sep 16

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$430

$241

One-way

Thu, Sep 17

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$381

$203

One-way

Fri, Sep 18

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$379

$230

One-way

Biggest price drops on these dates for flights from St. Louis to Houston

2 nights

Sep 11 - Sep 13

$624 → $310

50%

3 nights

Sep 11 - Sep 14

$617 → $310

50%

4 nights

Sep 7 - Sep 11

$637 → $330

48%

3 nights

Sep 7 - Sep 10

$641 → $340

47%

Popular Airports to fly from St. Louis to Houston

St. Louis - Houston route insights

💸 Price insights

Recent fares are below the typical level.

Recent fares from St. Louis to Houston are below the typical level for this route.

📅 Best time to fly

December is historically the cheapest month to fly.

Historically, December is the cheapest month to fly, with a median price of $116.

⏱️ Flight duration

Median flight time is 5h 19m.

The median flight time from St. Louis to Houston is 5 hours and 19 minutes.

✈️ Airlines & availability

Direct flights are available from two airlines.

46.1% of recent fares are for direct flights, with options from two airlines.

🏆 Airline highlight

Southwest Airlines offers direct flights.

Southwest Airlines is one of the airlines offering direct flights on this route.

🎯 Booking tip

Deals appear frequently on this route.

Deals for flights from St. Louis to Houston appear frequently, often within 30 days.

St. Louis main airports to depart from

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International Airport is a good option for flights from St. Louis to Houston.

📍 ~20 km from city center (reachable by car)

💸 Flights from ~$120

Houston main airports to arrive at

George Bush Intercontinental (IAH)

Cheapest

George Bush Intercontinental Airport is a good arrival option for flights from St. Louis to Houston.

📍 ~25 km from Houston (reachable by car)

💸 Flights from ~$110

Airports nearby Houston used as alternative

Austin–Bergstrom International (AUS)

Austin–Bergstrom International offers extensive domestic and international routes, making it a strong alternative for Houston.

📍 ~230 km from Houston (reachable by car, but traffic can impact travel time)

💸 Flights from ~$177

Business & First Class Flight Deals to Houston

Discover luxury on the budget with premium cabin class on flights from St. Louis to Houston.

Elite

Best Elite deals to Houston

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From STL

Elite

Oct 21

Houston, United States

78% AI deal score

$1,840

$893

Save $947

From STL

Elite

Oct 19

Houston, United States

75% AI deal score

$728

$517

Save $211

United Airlines

Business Class

From STL

Elite

Sep 24

Houston, United States

75% AI deal score

$698

$517

Save $181

United Airlines

Business Class

From STL

Elite

Sep 23

Houston, United States

75% AI deal score

$717

$519

Save $198

United Airlines

Business Class

From STL

Elite

Oct 21

Houston, United States

75% AI deal score

$733

$519

Save $214

United Airlines

Business Class

From STL

Elite

Oct 20

Houston, United States

75% AI deal score

$734

$519

Save $215

United Airlines

Business Class

From STL

Elite

Nov 11

Houston, United States

75% AI deal score

$740

$519

Save $221

United Airlines

Business Class

From STL

Elite

Oct 17

Houston, United States

75% AI deal score

$721

$519

Save $202

United Airlines

Business Class

From STL

Elite

Oct 08

Houston, United States

75% AI deal score

$699

$519

Save $180

United Airlines

Business Class

From STL

Elite

Sep 24

Houston, United States

75% AI deal score

$717

$519

Save $198

United Airlines

Business Class

From STL

Elite

Nov 10

Houston, United States

74% AI deal score

$666

$519

Save $147

United Airlines

Business Class

From STL

Elite

Sep 24

Houston, United States

74% AI deal score

$681

$519

Save $162

United Airlines

Business Class

Frequently Asked Questions About Flights to Houston

Historically, the cheapest flights from St. Louis to Houston are found when booking 14-27 days in advance. During this period, the average price is typically around $261. Booking within 0-6 days of departure sees prices rise to an average of $423. For those booking 7-13 days out, the average price is approximately $331. Prices tend to be higher for bookings made 28-59 days out, averaging $602.

Across the trailing quarter, a good price for a flight from St. Louis to Houston is considered to be $242 or less. The median price for this route historically stands at $337. Fares can go up to $440 or more for the higher price points. These figures are based on pricing trends observed over a 90-day period.

Historically, December is the cheapest month to fly from St. Louis to Houston, with a median price of $116. February also offers competitive fares, with a median price of $208. January follows closely with a median price of $216. These prices are significantly lower than the annual median of $337 for this route, based on data from the trailing 270 days.

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St. Louis to Houston: Overview

Insights for flights from St. Louis to Houston

The route from St. Louis to Houston covers a distance of 1076 kilometers. This places it in the short-haul category, indicating a relatively brief flight experience.

How much is a round trip from St. Louis to Houston

Regular price: $131 - $317

Prices for flights from St. Louis to Houston are currently within the regular range.

The regular price range for flights from St. Louis to Houston is typically between $131 and $317. The current lowest deal is $217 for travel from Oct 22-Oct 26, available via Kayak.

now $217

Low $131

High $317

The cheapest time to fly from St. Louis to Houston

December

Cheapest

Flights from $116

July

Most Expensive

Flights from $604

Jan

Feb

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from St. Louis to Houston

Southwest Airlines

United Airlines

Last-minute flights going from St. Louis to Houston

Mon, Sep 7

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$637

$330

One-way

Mon, Sep 7

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$641

$340

One-way

Fri, Sep 11

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$624

$310

One-way

Wed, Sep 16

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$430

$241

One-way

Thu, Sep 17

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$381

$203

One-way

Fri, Sep 18

⌛ Last-Minute

STL - Houston

St. Louis (STL) - Houston (IAH)

Frontier Airlines

$379

$230

One-way

Biggest price drops on these dates for flights from St. Louis to Houston

2 nights

Sep 11 - Sep 13

$624 → $310

50%

3 nights

Sep 11 - Sep 14

$617 → $310

50%

4 nights

Sep 7 - Sep 11

$637 → $330

48%

3 nights

Sep 7 - Sep 10

$641 → $340

47%

Popular Airports to fly from St. Louis to Houston

St. Louis - Houston route insights

💸 Price insights

Recent fares are below the typical level.

Recent fares from St. Louis to Houston are below the typical level for this route.

📅 Best time to fly

December is historically the cheapest month to fly.

Historically, December is the cheapest month to fly, with a median price of $116.

⏱️ Flight duration

Median flight time is 5h 19m.

The median flight time from St. Louis to Houston is 5 hours and 19 minutes.

✈️ Airlines & availability

Direct flights are available from two airlines.

46.1% of recent fares are for direct flights, with options from two airlines.

🏆 Airline highlight

Southwest Airlines offers direct flights.

Southwest Airlines is one of the airlines offering direct flights on this route.

🎯 Booking tip

Deals appear frequently on this route.

Deals for flights from St. Louis to Houston appear frequently, often within 30 days.

St. Louis main airports to depart from

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International Airport is a good option for flights from St. Louis to Houston.

📍 ~20 km from city center (reachable by car)

💸 Flights from ~$120

Houston main airports to arrive at

George Bush Intercontinental (IAH)

Cheapest

George Bush Intercontinental Airport is a good arrival option for flights from St. Louis to Houston.

📍 ~25 km from Houston (reachable by car)

💸 Flights from ~$110

Airports nearby Houston used as alternative

Austin–Bergstrom International (AUS)

Austin–Bergstrom International offers extensive domestic and international routes, making it a strong alternative for Houston.

📍 ~230 km from Houston (reachable by car, but traffic can impact travel time)

💸 Flights from ~$177

Business & First Class Flight Deals to Houston

Discover luxury on the budget with premium cabin class on flights from St. Louis to Houston.

Elite

Best Elite deals to Houston

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From STL

Houston, United States

74% AI deal score

$681

$519

Save $162

United Airlines

Business Class

Frequently Asked Questions About Flights to Houston

Cheap Flights from St. Louis to Houston

Today’s best flight deals from St. Louis to Houston

St. Louis to Houston: Overview

Insights for flights from St. Louis to Houston

How much is a round trip from St. Louis to Houston

The cheapest time to fly from St. Louis to Houston

Direct flights from St. Louis to Houston

Last-minute flights going from St. Louis to Houston

Biggest price drops on these dates for flights from St. Louis to Houston

Popular Airports to fly from St. Louis to Houston

St. Louis - Houston route insights

Recent fares are below the typical level.

December is historically the cheapest month to fly.

Median flight time is 5h 19m.

Direct flights are available from two airlines.

Southwest Airlines offers direct flights.

Deals appear frequently on this route.

St. Louis main airports to depart from

Houston main airports to arrive at

Airports nearby Houston used as alternative

Business & First Class Flight Deals to Houston

Best Elite deals to Houston

Oct 21

Oct 19

Sep 24

Sep 23

Oct 21

Oct 20

Nov 11

Oct 17

Oct 08

Sep 24

Nov 10

Sep 24

Frequently Asked Questions About Flights to Houston

How early should I book St. Louis to Houston flights to get the cheapest price?

What's a cheap fare from St. Louis to Houston?

Which months have the cheapest flights from St. Louis to Houston?

Can I fly direct from St. Louis to Houston?

How long is the flight from St. Louis to Houston?

How much more do direct flights from St. Louis to Houston cost?

Related routes

More routes from St. Louis

Flights to Houston from other cities

St. Louis to Houston: Overview

Insights for flights from St. Louis to Houston

How much is a round trip from St. Louis to Houston

The cheapest time to fly from St. Louis to Houston

Direct flights from St. Louis to Houston

Last-minute flights going from St. Louis to Houston

Biggest price drops on these dates for flights from St. Louis to Houston

Popular Airports to fly from St. Louis to Houston

St. Louis - Houston route insights

Recent fares are below the typical level.

December is historically the cheapest month to fly.

Median flight time is 5h 19m.

Direct flights are available from two airlines.

Southwest Airlines offers direct flights.

Deals appear frequently on this route.

St. Louis main airports to depart from

Houston main airports to arrive at

Airports nearby Houston used as alternative

Business & First Class Flight Deals to Houston

Best Elite deals to Houston

Oct 21

Oct 19

Sep 24

Sep 23

Oct 21

Oct 20

Nov 11

Oct 17

Oct 08

Sep 24

Nov 10

Sep 24

Frequently Asked Questions About Flights to Houston

How early should I book St. Louis to Houston flights to get the cheapest price?

What's a cheap fare from St. Louis to Houston?

Which months have the cheapest flights from St. Louis to Houston?