Direct (non-stop) flights from Saint Louis (STL) to Houston (IAH)
Find comprehensive flight information, schedules, and booking details for direct flights from Saint Louis (STL), US to Houston (IAH), US. This popular route is operated by 1 airline, offering multiple daily departures.• Flight Duration: 2h 16m - 2h 31m (average flight time)• Distance: 671 miles (1080 km) (air miles between airports)• Daily Flights: 3-4 flights (scheduled departures per day)
Saint Louis (STL)
US
Houston (IAH)
US
FLIGHT TIME
2h 16m - 2h 31m
FLIGHT DISTANCE
671 miles (1080 km)
2h 19m - 2h 30m
06:15
16:35
671 miles (1080 km)
March
1 (Show)
26
Terminal 3 (Saint Louis (STL))
Terminal A (Houston (IAH))
Flight Schedule
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Airlines Operating This Route
Click any airline to view their specific flight schedules, policies, and route details for this connection. You can also explore flights from Saint Louis (STL) and flights to Houston (IAH).
Route Insights
Route Demand
With 26 weekly flights, this route maintains steady demand throughout the week, providing travelers with frequent scheduling options.
Best Time to Fly
Best Value Period
March typically offers the best value for travelers, with lower average fares compared to peak travel periods.
Distance & Duration Explained
Route Distance
At 671 miles (1080 km), this is an ultra-long-haul route between St Louis (STL) and Houston (IAH), requiring larger aircraft and extended flight times.
Flight Duration
Flight duration averages 2h 16m - 2h 31m, with actual times ranging from 2h 19m - 2h 30m depending on aircraft type, wind conditions, and routing.
Airline Comparison
Available Airlines
United Airlines is the sole operator on this route, providing 4 daily flights between STL and IAH.
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Best Time to Visit & Travel Planning
Cheapest Day
Cheapest Month
Average Fare
$370
Travel Planning Tips for Saint Louis (STL) to Houston (IAH)
- Best Day to Book
Thursday typically offers the lowest fares for flights from Saint Louis (STL) to Houston (IAH). Consider booking on this day for potential savings.
- Best Month to Travel
April is generally the cheapest month to fly from Saint Louis (STL) to Houston (IAH). Plan your trip during this month for the best deals.
- Average Flight Price
The average fare for flights from Saint Louis (STL) to Houston (IAH) is approximately $370. Prices may vary based on booking time, season, and airline.
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Related Pages
Related Airports
Related Airlines
Frequently Asked Questions
How many flights operate from St Louis (STL) to Houston (IAH)?
There are 4 direct flights operating from St Louis (STL) to Houston (IAH). Approximately 3-4 flights daily.
Which airlines operate flights from St Louis (STL) to Houston (IAH)?
1 airline operates on this route: United Airlines.
How long is the flight from St Louis (STL) to Houston (IAH)?
The flight duration from St Louis (STL) to Houston (IAH) is approximately 2h 16m - 2h 31m.
What is the distance from St Louis (STL) to Houston (IAH)?
The distance from St Louis (STL) to Houston (IAH) is 671 miles (1080 km).
What is the flight time range for this route?
Flight times on this route range from 2h 19m - 2h 30m.
What are the earliest and latest flight departure times?
The earliest flight departs at 06:15 and the latest flight departs at 16:35.
What is the cheapest month to fly from St Louis (STL) to Houston (IAH)?
March is typically the cheapest month to fly on this route.
How many flights operate per week on this route?
Approximately 26 flights operate per week from St Louis (STL) to Houston (IAH).
What types of aircraft operate on this route?
This route is served by Airbus A319, Embraer 175 (Enhanced Winglets).
What is the average flight price from St Louis (STL) to Houston (IAH)?
The average flight price for a round-trip ticket from St Louis (STL) to Houston (IAH) is approximately $318 USD. Prices can vary based on booking time, season, and airline.
When is the best time to book flights from St Louis (STL) to Houston (IAH) for the lowest prices?
March is typically the cheapest month to fly from St Louis (STL) to Houston (IAH). Booking in advance and avoiding peak travel seasons can help you find better deals.
How far is Houston (IAH) from St Louis (STL)?
The distance from St Louis (STL) to Houston (IAH) is 671 miles (1080 km). This is a long-haul flight route.
How long does it take to fly from St Louis (STL) to Houston (IAH)?
The flight time from St Louis (STL) to Houston (IAH) is approximately 2h 16m - 2h 31m. Actual flight duration may vary based on weather conditions, aircraft type, and routing.
What city does Houston (IAH) serve?
Houston (IAH) serves Houston, US.