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CSM to SAT: distance & flight time
Clinton (Clinton Sherman Airport) → San Antonio (San Antonio International Airport)
403 mi
649 km · 351 nm
1h 21m
estimated nonstop flight time
Same time
time difference · heading south
See live CSM→SAT fares Phone-only fares on this route — call free
Flight time details
403 miles nonstop takes roughly 1h 21m gate to gate, flying south. 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
- CSM — Clinton Sherman Airport · Clinton, 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 CSM
- HBR · Hobart Regional Airport26 mi away
- LTS · Altus Air Force Base47 mi away
- FSI · Henry Post Army Air Field (Fort Sill)66 mi away
- LAW · Lawton Fort Sill Regional Airport69 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 CSM from SAT?
The flight distance from Clinton (CSM) to San Antonio (SAT) is 403 miles (649 km, 351 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CSM to SAT?
A nonstop flight takes about 1h 21m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from CSM to SAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CSM–SAT that never appear on search engines, with no booking fees.