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HOU to STL: distance & flight time
Houston (William P Hobby Airport) → St. Louis (St Louis Lambert International Airport)
688 mi
1,108 km · 598 nm
1h 58m
estimated nonstop flight time
Same time
time difference · heading northeast
See live HOU→STL fares Phone-only fares on this route — call free
Flight time details
688 miles nonstop takes roughly 1h 58m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- HOU — William P Hobby Airport · Houston, United States
- STL — St Louis Lambert International Airport · St. Louis, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near HOU
- IAH · George Bush Intercontinental Houston Airport24 mi away
- EFD · Ellington Airport8 mi away
- AAP · Andrau Airpark19 mi away
- SGR · Sugar Land Regional Airport23 mi away
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Frequently asked questions
How far is HOU from STL?
The flight distance from Houston (HOU) to St. Louis (STL) is 688 miles (1,108 km, 598 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HOU to STL?
A nonstop flight takes about 1h 58m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from HOU to STL?
Nonstop service on HOU–STL depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 58m nonstop estimate.
What is the cheapest way to fly from HOU to STL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HOU–STL that never appear on search engines, with no booking fees.
Why are some HOU to STL fares phone-only?
Consolidator contracts let us sell certain HOU–STL tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.