St Louis to Houston (SUS–IAH) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
While no nonstop service exists between SUS and IAH, connecting options are available through 40 hubs.
Connection Landscape
On-Time Performance
Other ways to reach Houston from St Louis
| Metric | SUS→IAH | STL→IAH |
|---|---|---|
| Distance from SUS | – | 16 mi |
| Nonstop airlines | 0 | 3 |
| Weekly flights | 0 | 35 |
| Flight time | 1h 43m | 2h 20m |
Travel Essentials
SUS: EDT · IAH: CDT
When it's 6:00 PM in St Louis, it's 5:00 PM in Houston.
No direct rail from IAH. The METRO bus 102 (IAH Express) runs to downtown Houston's transit center (60–90 min, $1.25). Taxis to downtown Houston cost $50–70. Ride-hails pick up at the designated Rideshare zones outside baggage claim on the lower level.IAH has five terminals (A–E) connected by an underground tunnel with trams. Terminal D handles international arrivals. Rental car agencies are in a consolidated facility adjacent to Terminal C; a free IAH Connector bus runs between terminals and the rental car center. The Galleria / Uptown area costs $35–50 by ride-hail.
Humid subtropical climate. Hot, humid, and wet for much of the year. Summers are brutal (33–38°C) with high humidity and near-daily afternoon thunderstorms. Severe storms with hail and high winds regularly cause ground stops from April through September. Houston's flooding risk is significant. Heavy rain events, including tropical system remnants, have flooded airport roads, cutting off surface access even when the airport itself remains operational.
Winters are mild (5–18°C) with occasional ice storms. These are rare but highly disruptive when they occur. Hurricane season (June–November) requires monitoring for Gulf storms. October through March has the best flying weather.
SUS–IAH Quick Facts
Frequently Asked Questions
Flights from SUS to IAH
Spirit of St Louis Airport (SUS) and George Bush Intercontinental Airport (IAH) are connected through multiple connecting hub airports.
SUS to IAH Flight Duration and Schedule
Nonstop flight time from SUS to IAH ranges from 1 hours 43 minutes. The route covers a distance of 656 miles (1,056 km).
Connecting Options and Alternatives
40 one-stop connections are available, with the fastest taking approximately 4 hours via STL. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include St Louis (STL).