St. LouistoHoustonFlight Time
STL–IAH · Nonstop
St. Louis (St. Louis Lambert International Airport) to Houston (George Bush Intercontinental Airport).
The estimated flight time from St. Louis (STL) to Houston (IAH) is about 1h 58m, covering 668 miles. United Airlines flies the route nonstop with 4-5/day departures, from 06:14 to 18:30 local time.
Plan this routeAt a glance
| Est. flight time | Distance | Route type | Captured freq. | Market |
|---|---|---|---|---|
| ~1h 58m Estimated from great-circle distance — no tracked flights yet. | 668 mi | Nonstop | 4-5/day From the current provider sample; confirm live timetables before booking. | Domestic |
Airlines on this route
Nonstop airlines from St. Louis to Houston
United Airlines operates 4-5/day flights from STL to IAH. Departures leave from Terminal 1 at STL.
- First departure
- 06:14
- Last departure
- 18:30
- Cadence
- 5 departures/day
- Scheduled departure times
- 5
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| United Airlines | 4-5/day | Canadair Regional Jet, Embraer E-Jet · Terminal 1 |
Aircraft on this route
Flying the other way?
IAH to STL flights — 4-5/day on 1 airline →Methodology: airline, aircraft, terminal, and departure-time details come from a full week of published airline schedules for STL, refreshed on a rolling basis. Frequency uses 32 scheduled departures across 7 observed days; flight time is estimated from flying distance until this route has enough tracked flights for an observed average.
Route FAQ
How long is the flight from St. Louis to Houston?
The estimated flight time from St. Louis (STL) to Houston (IAH) is about 1h 58m, based on the 668-mile flying distance.
How far is St. Louis from Houston?
St. Louis (STL) to Houston (IAH) is about 668 miles by air.
Are there nonstop flights from St. Louis to Houston?
Yes. United Airlines flies nonstop from St. Louis (STL) to Houston (IAH), with 4-5/day departures.
Which airlines fly from St. Louis to Houston?
United Airlines flies nonstop from St. Louis (STL) to Houston (IAH).
What aircraft fly from St. Louis to Houston?
The STL–IAH route is flown with Canadair Regional Jet, Embraer E-Jet.
Route hubs
Nearby airport options
Near Houston
- HOU - HoustonWilliam P Hobby Airport · 24 mi from IAHFlights to HOU