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

Direct flights offer convenience and save time, as they avoid layovers. However, they are not always the cheapest option; flights with one or more stops can sometimes be more affordable. Consider your budget and time constraints when deciding between direct and connecting flights.

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 for airfare can vary significantly depending on the day of the week or time of year. Flying during off-peak seasons or on weekdays may result in lower fares.

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. Factoring these into your total travel budget is important.

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 today

485 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Nov 2, 2026.)

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

Explore current cheapest deals departing from Austin to St. Louis

2026-12-01 – 2026-12-09
AUS - St. Louis
76% AI deal score
$258
$113
Round trip
2026-12-02 – 2026-12-04
AUS - St. Louis
74% AI deal score
$288
$186
Round trip
2026-11-18 – 2026-11-23
AUS - St. Louis
43% AI deal score
$139
$202
Round trip
2026-12-11 – 2026-12-18
AUS - St. Louis
71% AI deal score
$270
$204
Round trip
2026-11-19 – 2026-11-25
AUS - St. Louis
49% AI deal score
$253
$211
Round trip
2026-11-10 – 2026-11-14
AUS - St. Louis
45% AI deal score
$290
$269
Round trip
2026-11-09 – 2026-11-12
AUS - St. Louis
40% AI deal score
$163
$276
Round trip
2026-11-11 – 2026-11-15
AUS - St. Louis
40% AI deal score
$149
$276
Round trip
2026-11-08 – 2026-11-12
AUS - St. Louis
39% AI deal score
$311
$323
Round trip
2026-11-06 – 2026-11-09
AUS - St. Louis
37% AI deal score
$321
$331
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: $214 - $382

Prices are currently below the regular range for flights from Austin to St. Louis.

The regular price range for flights is typically between $214 and $382. The current lowest deal is $113 with Frontier Airlines for travel from Dec 1-Dec 9.

now $113

Low $214

High $382

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

Frontier Airlines

Last-minute flights going from Austin to St. Louis

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$316

$334

One-way

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$471

$1,208

One-way

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$472

$1,216

One-way

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$351

$1,308

One-way

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$334

$1,308

One-way

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$419

$1,434

One-way

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

6 nights

Dec 1 - Dec 7

$271 → $120

56%

6 nights

Dec 8 - Dec 14

$271 → $120

56%

3 nights

Dec 4 - Dec 7

$285 → $136

52%

3 nights

Dec 8 - Dec 11

$285 → $137

52%

Popular Airports to fly from Austin to St. Louis

Austin - St. Louis route insights

💸 Price insights

Current fares are below the typical level

Recent fares from Austin to St. Louis are below the typical level of $588.

📅 Best time to fly

Fly in September for the best prices

Historically, September is the cheapest month to fly, with a median price of $299.

⏱️ Flight duration

Direct flights take 2h 5m

The median flight time for a direct flight is 2 hours 5 minutes.

✈️ 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 has offered direct flights from Austin to St. Louis recently.

🎯 Booking tip

Deals for this route are rare

Deals for flights from Austin to St. Louis are historically 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

48% AI deal score

$2,228

Alaska Airlines, Inc.

Business Class

From AUS

Elite

Oct 29

St. Louis, United States

48% AI deal score

$1,511

$1,274

Save $237

From AUS

Elite

Oct 27

St. Louis, United States

48% AI deal score

$1,662

$1,348

Save $314

From AUS

Elite

Oct 29

St. Louis, United States

48% AI deal score

$1,631

$1,348

Save $283

From AUS

Elite

Nov 27

St. Louis, United States

45% AI deal score

$2,172

Porter Airlines, +1

Business Class

From AUS

Elite

Nov 17

St. Louis, United States

45% AI deal score

$2,240

Porter Airlines, +1

Business Class

From AUS

Elite

Nov 27

St. Louis, United States

45% AI deal score

$2,255

Porter Airlines, +1

Business Class

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 different airlines and booking platforms can also help you identify better deals. Setting up price alerts may notify you when fares drop for your desired route.

Booking flights in advance, often several weeks to a few months before your trip, may result in lower prices. However, prices can fluctuate, so monitoring fare trends for your specific route is often a good strategy. Last-minute deals are rare but can sometimes appear.

Comparing nearby airports can sometimes uncover more economical flight options or different schedules. While it may add to your ground transportation time, the potential savings on airfare can be significant. Always factor in the total cost and convenience when considering this option.

Related routes

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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: $214 - $382

Prices are currently below the regular range for flights from Austin to St. Louis.

The regular price range for flights is typically between $214 and $382. The current lowest deal is $113 with Frontier Airlines for travel from Dec 1-Dec 9.

now $113

Low $214

High $382

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

Direct flights from Austin to St. Louis

Frontier Airlines

Last-minute flights going from Austin to St. Louis

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$316

$334

One-way

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$471

$1,208

One-way

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$472

$1,216

One-way

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$351

$1,308

One-way

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$334

$1,308

One-way

Wed, Oct 28

⌛ Last-Minute

AUS - St. Louis

Austin (AUS) - St. Louis (STL)

Frontier Airlines

$419

$1,434

One-way

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

6 nights

Dec 1 - Dec 7

$271 → $120

56%

6 nights

Dec 8 - Dec 14

$271 → $120

56%

3 nights

Dec 4 - Dec 7

$285 → $136

52%

3 nights

Dec 8 - Dec 11

$285 → $137

52%

Popular Airports to fly from Austin to St. Louis

Austin - St. Louis route insights

💸 Price insights

Current fares are below the typical level

Recent fares from Austin to St. Louis are below the typical level of $588.

📅 Best time to fly

Fly in September for the best prices

Historically, September is the cheapest month to fly, with a median price of $299.

⏱️ Flight duration

Direct flights take 2h 5m

The median flight time for a direct flight is 2 hours 5 minutes.

✈️ 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 has offered direct flights from Austin to St. Louis recently.

🎯 Booking tip

Deals for this route are rare

Deals for flights from Austin to St. Louis are historically 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

St. Louis, United States

45% AI deal score

$2,255

Porter Airlines, +1

Business Class

Frequently Asked Questions About Flights to St. Louis

Cheap Flights from Austin to St. Louis

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

Austin to St. Louis: Overview

Insights for flights from Austin to St. Louis

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

The cheapest time to fly from Austin to St. Louis

Direct flights from Austin to St. Louis

Last-minute flights going from Austin to St. Louis

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

Popular Airports to fly from Austin to St. Louis

Austin - St. Louis route insights

Current fares are below the typical level

Fly in September for the best prices

Direct flights take 2h 5m

Connecting flights are dominant

Southwest Airlines offers direct flights

Deals for this route are rare

Austin main airports to depart from

St. Louis main airports to arrive at

Airports nearby St. Louis used as alternative

Business & First Class Flight Deals to St. Louis

Best Elite deals to St. Louis

Nov 10

Nov 10

Oct 28

Mar 16

Oct 28

Dec 14

Oct 29

Oct 27

Oct 29

Nov 27

Nov 17

Nov 27

Frequently Asked Questions About Flights to St. Louis

How can I find cheap flights from Austin to St. Louis?

When should I book flights from Austin to St. Louis?

Should I compare nearby airports for flights from Austin to St. Louis?

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

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

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

Related routes

More routes from Austin

Flights to St. Louis from other cities

Austin to St. Louis: Overview

Insights for flights from Austin to St. Louis

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

The cheapest time to fly from Austin to St. Louis

Direct flights from Austin to St. Louis

Last-minute flights going from Austin to St. Louis

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

Popular Airports to fly from Austin to St. Louis

Austin - St. Louis route insights

Current fares are below the typical level

Fly in September for the best prices

Direct flights take 2h 5m

Connecting flights are dominant

Southwest Airlines offers direct flights

Deals for this route are rare

Austin main airports to depart from

St. Louis main airports to arrive at

Airports nearby St. Louis used as alternative

Business & First Class Flight Deals to St. Louis

Best Elite deals to St. Louis

Nov 10

Nov 10

Oct 28

Mar 16

Oct 28

Dec 14

Oct 29

Oct 27

Oct 29

Nov 27

Nov 17

Nov 27

Frequently Asked Questions About Flights to St. Louis

How can I find cheap flights from Austin to St. Louis?

When should I book flights from Austin to St. Louis?

Should I compare nearby airports for flights from Austin to St. Louis?