$160 Cheap United flights St. Louis (STL) to Austin (AUS)

View $160 flight on Thu, Mar 5, 2026Opens in a new window

$160 Cheap United flights St. Louis (STL) to Austin (AUS)

Prices were available within the past 7 days and start at $160 for one-way flights and $249 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Mar 5 - Mon, Mar 16
STL
St. Louis
AUS
Austin
$249 Roundtrip, found 12 hours ago
$249
Roundtrip
found 12 hours ago
Select United flight, departing Thu, Mar 5 from St. Louis to Austin, returning Mon, Mar 16, priced at $249 found 12 hours ago
United
Thu, Mar 5 - Mon, Mar 16
STL
St. Louis
AUS
Austin
$319 Roundtrip, found 12 hours ago
$319
Roundtrip
found 12 hours ago
Select United flight, departing Thu, Mar 5 from St. Louis to Austin, returning Mon, Mar 16, priced at $319 found 12 hours ago

Find the cheapest month to fly from St. Louis (STL) to Austin (AUS)

January is typically the cheapest month to fly

From $140 - $614 per traveler.
Flights from St. Louis (STL) to Austin (AUS)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Austin-Bergstrom Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Popular airline
Southwest Airlines
Distance
1153 km
Average flight time
2 hours 28 mins