Cheap flights from St. Louis to Houston

Lambert-St. Louis
STL
William P. Hobby
HOU

Flight deals from St. Louis to Houston

Below you can see the best deals on flights St. Louis — Houston for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 14 September, from $62.

Top 10 cheap flights from St. Louis to Houston

F9
F9
$ 60

St. Louis — Houston

14:29—07:17
14 Sep 2026
16 h 48 m
1 stop
F9
F9
$ 60

St. Louis — Houston

14:29—22:30
14 Sep 2026
32 h 1 m
1 stop
F9
F9
$ 65

St. Louis — Houston

14:29—07:17
11 Sep 2026
16 h 48 m
1 stop
F9
F9
$ 65

St. Louis — Houston

14:29—22:30
11 Sep 2026
32 h 1 m
1 stop
F9
F9
$ 75

St. Louis — Houston

18:17—22:14
4 Sep 2026
27 h 57 m
1 stop
F9
F9
$ 78

St. Louis — Houston

14:29—22:30
14 Sep 2026
8 h 1 m
1 stop
F9
F9
$ 80

St. Louis — Houston

14:29—22:30
11 Sep 2026
8 h 1 m
1 stop
F9
DL
$ 81

St. Louis — Houston

14:29—08:31
14 Sep 2026
18 h 2 m
1 stop
F9
DL
$ 81

St. Louis — Houston

14:29—10:00
14 Sep 2026
19 h 31 m
1 stop
F9
DL
$ 81

St. Louis — Houston

14:29—13:30
14 Sep 2026
23 h 1 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the St. Louis — Houston flight

Looking for cheap flights from St. Louis to Houston? Compare fares from different airlines, check the flight schedule and travel time — and book your St. Louis — Houston ticket online at the best price.

The route has direct flights — around 67 flights per week, flights are operated by United Airlines, a nonstop flight takes about 2 h 15 min, the distance between the cities is around 1,092 km.

Planning your trip? You may find our Houston travel guide, how to get from the airport into town and Houston weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $62Min. price
SeptemberCheapest
MayPeak season
YesDirect flights
1,092 kmDistance
2 h 15 minTravel time
1Airlines
67 / wkFlights

Flight schedule from St. Louis to Houston

The table shows direct flights from St. Louis to Houston on the selected date. The flight takes approximately 2 h 15 min. Regular flights are operated by United Airlines. Departures from Lambert-St. Louis International Airport airports, arrivals at George Bush Intercontinental Airport and William P. Hobby Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 14 Aug 2026

Flight ticket prices by day: St. Louis — Houston

Below is a calendar of the lowest flight ticket prices for St. Louis — Houston by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $62 in September, and the most expensive are around $192 in May. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from St. Louis to Houston by month. Tickets are usually cheapest in January (around $184) and priciest in March (about $248) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$184lowMay$216mediumSep$194low
Feb$189lowJun$238highOct$200low
Mar$248highJul$248highNov$221medium
Apr$205mediumAug$227mediumDec$248high

Some values are estimated based on seasonality.

When to fly

Weather in Houston: it is warmest in August (up to 34 °C on average) and coolest in January (around 18 °C). The driest month is October.

Tickets are usually cheapest in September and most expensive in May. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Houston

Dry and wet days · Houston

Wind speed and direction · Houston

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How to get the best deal on a St. Louis — Houston ticket

  • Book ahead: fares for St. Louis — Houston are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • The cheapest month to fly to Houston is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the St. Louis — Houston route are operated by 1 airline; United Airlines runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • United AirlinesUA
    22x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight STL → IAH22x/week
      Duration
      2h 16m
      Days
      MTWTFSS
    100.0%Open →

Cities and airports on the St. Louis — Houston route

Flights St. Louis — Houston depart from Lambert-St. Louis International Airport and arrive at George Bush Intercontinental Airport and William P. Hobby Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

St. Louis

STL
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Houston

HOU
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the St. Louis — Houston flight

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

A nonstop St. Louis — Houston flight takes about 2 h 15 min — the distance between the cities is around 1,092 km.

How far is it from St. Louis to Houston?

The distance from St. Louis to Houston is about 1,092 km, which a nonstop flight covers in around 2 h 15 min.

Are there direct flights from St. Louis to Houston?

Yes, there are nonstop flights St. Louis — Houston — around 67 flights per week.

Which airlines fly from St. Louis to Houston?

Airlines operating St. Louis — Houston include United Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do St. Louis — Houston flights use?

Flights from St. Louis depart from Lambert-St. Louis International Airport, and arrive at George Bush Intercontinental Airport, William P. Hobby Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from St. Louis to Houston?

The price of a St. Louis — Houston ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in May. Tickets typically cost between $62 and $192. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights St. Louis — Houston?

Flights St. Louis — Houston are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from St. Louis to Houston?

To catch a low fare St. Louis — Houston, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from St. Louis

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ChicagoDallasNew York CityAtlantaSeattleMinneapolisTorontoDenverCharlotteWashington, D.C.DetroitPortlandBostonOrlandoPhoenixPhiladelphiaSalt Lake CityMiamiMontrealLos AngelesLas VegasCancunJonesboroFort LauderdaleSan FranciscoLondonTampaFrankfurt am MainPunta CanaQuincyManhattan

Where else you can fly from Houston

See all
New York CityDallasAtlantaLos AngelesWashington, D.C.ChicagoDenverOrlandoMexico CityMiamiLondonCancunFort LauderdaleOklahoma CityTulsaDetroitPhoenixMonterreyMcAllenSeattleCorpus ChristiWichitaMinneapolisBirminghamLittle RockCharlotteSan AntonioAustinMidlandPanama CityBaton RougeBostonTampaSan SalvadorEl PasoNew OrleansKnoxvilleLubbockSan FranciscoSalt Lake City

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