Are direct flights from Austin to St. Louis always the best option?

Direct flights offer convenience by reducing travel time and avoiding layovers. However, they are not always the most budget-friendly choice. Flights with one or more connections can often be less expensive, depending on the route and airline.

Can flexible travel dates help on Austin to St. Louis flights?

Yes, being flexible with your travel dates can often lead to finding cheaper flights. Prices can vary significantly between different days of the week or even within the same week. Adjusting your departure or return by a day or two may result in notable savings.

What extra costs should I check before booking Austin to St. Louis flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Understanding these fees beforehand can help you budget accurately for your trip.

Flights From Austin

To St. Louis

Cheap Flights from Austin to St. Louis

Browse current best options from Austin. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Austin

RatePunk searches hundreds of travel sites at once for deals on flights to St. Louis

Prices updated 2 days ago

476 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Oct 12, 2026.)

Today’s best flight deals from Austin to St. Louis

Explore current cheapest deals departing from Austin to St. Louis

2026-11-17 – 2026-12-02
AUS - St. Louis
78% AI deal score
$223
$120
Round trip
2026-11-10 – 2026-11-18
AUS - St. Louis
74% AI deal score
$243
$124
Round trip
2026-11-10 – 2026-12-02
AUS - St. Louis
78% AI deal score
$218
$124
Round trip
2026-12-01 – 2026-12-21
AUS - St. Louis
78% AI deal score
$230
$125
Round trip
2026-12-08 – 2026-12-21
AUS - St. Louis
74% AI deal score
$245
$125
Round trip
2026-12-01 – 2026-12-09
AUS - St. Louis
75% AI deal score
$258
$125
Round trip
2026-11-10 – 2026-11-16
AUS - St. Louis
75% AI deal score
$254
$125
Round trip
2026-11-17 – 2026-12-09
AUS - St. Louis
78% AI deal score
$217
$125
Round trip
2026-11-10 – 2026-12-09
AUS - St. Louis
78% AI deal score
$218
$125
Round trip
2026-12-01 – 2026-12-04
AUS - St. Louis
75% AI deal score
$285
$131
Round trip

Austin to St. Louis: Overview

Insights for flights from Austin to St. Louis

Most itineraries from Austin to St. Louis connect at least once, with only 0.2% of recent fares being non-stop. For those connecting flights, the typical number of stopovers is 2.

A typical journey from Austin to St. Louis takes approximately 2h 5m, including connections. For itineraries that involve connections, the median travel time extends to 6h 22m, while non-stop flights have a median duration of 2h 5m.

The distance between Austin and St. Louis is 1162 kilometers, classifying this as a short-haul route.

When looking for cheap flights from Austin to St. Louis, you'll find that fares typically range from $304–$879, with a median price of $588. Right now, current fares are below the typical level, and only 1% of recent fares were classified as a good price. Deals for this route are infrequent — a price alert helps.

To find the cheapest time to fly from Austin to St. Louis, consider traveling in September, when the median fare is $299. Other affordable months include October, with a median fare of $302, and November, where the median fare is $309.

How much is a round trip from Austin to St. Louis

Regular price: $211 - $339

Prices are currently below the regular range.

The regular price range for flights from Austin to St. Louis is $211-$339. The current lowest deal is $168 with Frontier Airlines, for travel from Nov 10-Nov 16.

now $168

Low $211

High $339

The cheapest time to fly from Austin to St. Louis

The cheapest month to fly from Austin to St. Louis is September, with a median price of $299. The most expensive month is January, with a median price of $811. Prices are generally lower from August to November.

September

Cheapest

Flights from $299

January

Most Expensive

Flights from $811

Jan

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Austin to St. Louis

Southwest Airlines

Last-minute flights going from Austin to St. Louis

Tue, Oct 13

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

United Airlines

$472

$854

One-way

Tue, Oct 13

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

United Airlines

$384

$985

One-way

Fri, Oct 16

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

United Airlines

$414

$777

One-way

Fri, Oct 16

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

United Airlines

$420

$984

One-way

Sat, Oct 17

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

United Airlines

$399

$793

One-way

Tue, Oct 20

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

United Airlines

$331

$1,340

One-way

Biggest price drops on these dates for flights from Austin to St. Louis

3 nights

Dec 1 - Dec 4

$285 → $131

54%

6 nights

Dec 3 - Dec 9

$272 → $120

56%

8 nights

Dec 1 - Dec 9

$258 → $114

56%

4 nights

Nov 12 - Nov 16

$265 → $127

52%

Popular Airports to fly from Austin to St. Louis

Austin - St. Louis route insights

💸 Price insights

Recent fares are below the typical level.

Recent fares from Austin to St. Louis are below the typical level for this route.

📅 Best time to fly

Fly in September for the lowest prices.

Historically, September, October, and November offer the lowest median prices for this route.

⏱️ Flight duration

Direct flights take 2h 5m.

Direct flights to St. Louis typically take 2h 5m, while connecting flights average 6h 22m.

✈️ Airlines & availability

Connecting flights are dominant.

Only 20% of recent flights from Austin to St. Louis are direct.

🏆 Airline highlight

Southwest Airlines offers direct flights.

Southwest Airlines is one of the carriers offering direct flights on this route.

🎯 Booking tip

Deals are rare for this route.

Historically, deals for flights from Austin to St. Louis are rare.

Austin main airports to depart from

Austin–Bergstrom International (AUS)

Cheapest

Austin–Bergstrom International Airport is a convenient departure point for flights from Austin to St. Louis.

📍 ~11 km from city center (reachable by car)

💸 Flights from ~$132

St. Louis main airports to arrive at

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International Airport is a convenient arrival point for St. Louis.

📍 ~20 km from St. Louis (reachable by car)

💸 Flights from ~$120

Airports nearby St. Louis used as alternative

MidAmerica St. Louis (BLV)

MidAmerica St. Louis (BLV) is the closest alternative, especially for travelers on the Illinois side of the metro area.

📍 ~45 km from St. Louis (reachable by car)

💸 Flights from ~$291

Business & First Class Flight Deals to St. Louis

$864

Save $614

From AUS

Elite

Oct 08

St. Louis, United States

75% AI deal score

$1,493

$1,006

Save $487

United Airlines

Business Class

From AUS

Elite

Oct 07

St. Louis, United States

74% AI deal score

$1,662

$1,133

Save $529

United Airlines

Business Class

From AUS

Elite

Oct 08

St. Louis, United States

72% AI deal score

$1,454

$993

Save $461

Frequently Asked Questions About Flights to St. Louis

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across various airlines and booking sites can often reveal better deals. Looking into flights with layovers may also present lower-cost options.

Booking flights in advance, often several weeks to a few months before your desired departure, can sometimes lead to better prices. However, last-minute deals can occasionally appear. Monitoring price trends can help you decide the optimal booking time.

Comparing nearby airports at both your origin and destination can sometimes uncover more economical flight options. While it may require additional travel to and from these airports, the savings on airfare can sometimes be significant. Always factor in potential ground transportation costs and time.

Related routes

More routes from Austin

Flights from Austin to Albuquerque Flights from Austin to Amarillo Flights from Austin to Amsterdam Flights from Austin to Anchorage Flights from Austin to Athens Flights from Austin to Auckland Flights from Austin to Destin Flights from Austin to Tampa Flights from Austin to Tokyo Flights from Austin to Vienna Flights from Austin to Washington, D.C.Flights from Austin to Zürich

Flights to St. Louis from other cities

Flights from Brussels to St. Louis Flights from Dallas to St. Louis Flights from Florence to St. Louis Flights from Las Vegas to St. Louis Flights from Los Angeles to St. Louis Flights from Milwaukee to St. Louis Flights from New York to St. Louis Flights from Orlando to St. Louis Flights from Phoenix to St. Louis Flights from Prague to St. Louis Flights from Rome to St. Louis Flights from San Diego to St. Louis

Austin to St. Louis: Overview

Insights for flights from Austin to St. Louis

Most itineraries from Austin to St. Louis connect at least once, with only 0.2% of recent fares being non-stop. For those connecting flights, the typical number of stopovers is 2.

The distance between Austin and St. Louis is 1162 kilometers, classifying this as a short-haul route.

How much is a round trip from Austin to St. Louis

Regular price: $211 - $339

Prices are currently below the regular range.

The regular price range for flights from Austin to St. Louis is $211-$339. The current lowest deal is $168 with Frontier Airlines, for travel from Nov 10-Nov 16.

now $168

Low $211

High $339

The cheapest time to fly from Austin to St. Louis

September

Cheapest

Flights from $299

January

Most Expensive

Flights from $811

Jan

Jul

Aug

Sep

Oct

Nov

Dec