Cheap Flights from San Antonio to St. Louis
Browse current best options from San Antonio. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
San Antonio
RatePunk searches hundreds of travel sites at once for deals on flights to St. Louis
Prices updated 1 day ago
462 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated Sep 15, 2026.)
Today’s best flight deals from San Antonio to St. Louis
Explore current cheapest deals departing from San Antonio to St. Louis
2026-10-20 – 2026-11-02
SAT - St. Louis
42% AI deal score
$248
$265
Round trip
2026-10-20 – 2026-11-09
SAT - St. Louis
42% AI deal score
$238
$265
Round trip
2026-11-03 – 2026-11-09
SAT - St. Louis
50% AI deal score
$325
$265
Round trip
2026-10-27 – 2026-11-09
SAT - St. Louis
42% AI deal score
$248
$266
Round trip
2026-10-27 – 2026-11-02
SAT - St. Louis
45% AI deal score
$278
$266
Round trip
2026-10-20 – 2026-11-16
SAT - St. Louis
42% AI deal score
$238
$268
Round trip
2026-11-03 – 2026-11-16
SAT - St. Louis
46% AI deal score
$292
$268
Round trip
2026-11-10 – 2026-12-09
SAT - St. Louis
43% AI deal score
$287
$295
Round trip
2026-11-17 – 2026-12-09
SAT - St. Louis
44% AI deal score
$292
$296
Round trip
2026-11-10 – 2026-12-02
SAT - St. Louis
37% AI deal score
$287
$332
Round trip
