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STL to SAT: distance & flight time
St. Louis (St Louis Lambert International Airport) → San Antonio (San Antonio International Airport)
787 mi
1,266 km · 684 nm
2h 11m
estimated nonstop flight time
Same time
time difference · heading southwest
See live STL→SAT fares Phone-only fares on this route — call free
Flight time details
787 miles nonstop takes roughly 2h 11m gate to gate, flying southwest. 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
- STL — St Louis Lambert International Airport · St. Louis, United States
- SAT — San Antonio International Airport · San Antonio, 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 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
Near SAT
- RND · Randolph Air Force Base11 mi away
- SKF · Lackland Air Force Base12 mi away
- SSF · Stinson Municipal Airport14 mi away
- AUS · Austin Bergstrom International Airport66 mi away
Frequently asked questions
How far is STL from SAT?
The flight distance from St. Louis (STL) to San Antonio (SAT) is 787 miles (1,266 km, 684 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to SAT?
A nonstop flight takes about 2h 11m 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 STL to SAT?
Nonstop service on STL–SAT 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 2h 11m nonstop estimate.
What is the cheapest way to fly from STL to SAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–SAT that never appear on search engines, with no booking fees.
Why are some STL to SAT fares phone-only?
Consolidator contracts let us sell certain STL–SAT 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.