Routes/Austin, TX to St. Louis, MO

Austin, TX to St. Louis, MO

Average one-way fare in 2026 Q1: $229 · 721 nonstop miles · 346 passengers per day.

2026 Q1 fare$229

2025 Q1 fare$236

Change−$7

Passengers/day346

Distance721 mi

The average fare a year earlier (2025 Q1) was $236. The change is $7 lower (3.1%).

The largest carrier on this route in 2026 Q1 was Southwest with 87% of passengers. The lowest-fare carrier was Southwest with 87% of passengers, at an average fare of $226.

All routes from Austin, TX · All routes from St. Louis, MO

All quarters on this route

Quarter	Passengers/day	Avg. fare	Largest carrier	Largest share	Lowest-fare carrier
2024 Q1	330	$211	Southwest	82%	Southwest
2024 Q2	484	$199	Southwest	90%	Southwest
2024 Q3	365	$213	Southwest	87%	Southwest
2024 Q4	393	$235	Southwest	87%	Southwest
2025 Q1	326	$236	Southwest	90%	Southwest
2025 Q2	417	$219	Southwest	91%	Southwest
2025 Q3	365	$205	Southwest	89%	Southwest
2025 Q4	419	$221	Southwest	90%	Southwest
2026 Q1	346	$229	Southwest	87%	Southwest

Source: U.S. Department of Transportation, Consumer Airfare Report Table 1, 2026 Q1. Figures are average one-way fares paid, including taxes and fees, for the quarter shown. Record: city markets 30423 and 31123; U.S. Department of Transportation, Domestic Airline Consumer Airfare Report, Table 1: top 1,000 contiguous-state city-pair markets (average one-way fare, passengers per day, largest carrier, lowest-fare carrier). Fetched 2026-09-27T00:40:04Z. Source data.