Direct (non-stop) flights from Houston (IAH) to Saint Louis (STL)
Find comprehensive flight information, schedules, and booking details for direct flights from Houston (IAH), US to Saint Louis (STL), US. This popular route is operated by 1 airline, offering multiple daily departures.• Flight Duration: 1h 57m - 2h 12m (average flight time)• Distance: 671 miles (1080 km) (air miles between airports)• Daily Flights: 3-5 flights (scheduled departures per day)
Houston (IAH)
US
Saint Louis (STL)
US
FLIGHT TIME
1h 57m - 2h 12m
FLIGHT DISTANCE
671 miles (1080 km)
2h 2m - 2h 7m
08:35
20:20
671 miles (1080 km)
September
1 (Show)
27
Terminal A (Houston (IAH))
Terminal 3 (Saint Louis (STL))
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 Houston (IAH) and flights to Saint Louis (STL).
Route Insights
Route Demand
With 27 weekly flights, this route maintains steady demand throughout the week, providing travelers with frequent scheduling options.
Best Time to Fly
Best Value Period
September typically offers the best value for travelers, with lower average fares compared to peak travel periods.
Price Trends
Price variation throughout the year is significant, with Sep being the most affordable month and prices increasing during peak travel seasons.
Distance & Duration Explained
Route Distance
At 671 miles (1080 km), this is an ultra-long-haul route between Houston (IAH) and St Louis (STL), requiring larger aircraft and extended flight times.
Flight Duration
Flight duration averages 1h 57m - 2h 12m, with actual times ranging from 2h 2m - 2h 7m depending on aircraft type, wind conditions, and routing.
Airline Comparison
Available Airlines
United Airlines is the sole operator on this route, providing 3 daily flights between IAH and STL.
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Best Time to Visit & Travel Planning
Cheapest Day
Cheapest Month
Average Fare
$370
Travel Planning Tips for Houston (IAH) to Saint Louis (STL)
- Best Day to Book
Thursday typically offers the lowest fares for flights from Houston (IAH) to Saint Louis (STL). Consider booking on this day for potential savings.
- Best Month to Travel
April is generally the cheapest month to fly from Houston (IAH) to Saint Louis (STL). Plan your trip during this month for the best deals.
- Average Flight Price
The average fare for flights from Houston (IAH) to Saint Louis (STL) 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 Houston (IAH) to St Louis (STL)?
There are 3 direct flights operating from Houston (IAH) to St Louis (STL). Approximately 3-5 flights daily.
Which airlines operate flights from Houston (IAH) to St Louis (STL)?
1 airline operates on this route: United Airlines.
How long is the flight from Houston (IAH) to St Louis (STL)?
The flight duration from Houston (IAH) to St Louis (STL) is approximately 1h 57m - 2h 12m.
What is the distance from Houston (IAH) to St Louis (STL)?
The distance from Houston (IAH) to St Louis (STL) is 671 miles (1080 km).
What is the flight time range for this route?
Flight times on this route range from 2h 2m - 2h 7m.
What are the earliest and latest flight departure times?
The earliest flight departs at 08:35 and the latest flight departs at 20:20.
What is the cheapest month to fly from Houston (IAH) to St Louis (STL)?
September is typically the cheapest month to fly on this route.
How many flights operate per week on this route?
Approximately 27 flights operate per week from Houston (IAH) to St Louis (STL).
What types of aircraft operate on this route?
This route is served by Embraer 175 (Enhanced Winglets), Airbus A319.
What is the average flight price from Houston (IAH) to St Louis (STL)?
The average flight price for a round-trip ticket from Houston (IAH) to St Louis (STL) is approximately $391 USD. Prices can vary based on booking time, season, and airline.
When is the best time to book flights from Houston (IAH) to St Louis (STL) for the lowest prices?
September is typically the cheapest month to fly from Houston (IAH) to St Louis (STL). Booking in advance and avoiding peak travel seasons can help you find better deals.
How far is St Louis (STL) from Houston (IAH)?
The distance from Houston (IAH) to St Louis (STL) is 671 miles (1080 km). This is a long-haul flight route.
How long does it take to fly from Houston (IAH) to St Louis (STL)?
The flight time from Houston (IAH) to St Louis (STL) is approximately 1h 57m - 2h 12m. Actual flight duration may vary based on weather conditions, aircraft type, and routing.
What city does St Louis (STL) serve?
St Louis (STL) serves St Louis, US.