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$49+ Cheap flights from St. Louis (STL) to Indiana

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IND
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Find flight deals from St. Louis to Indiana

Cheapest flights from St. Louis to Indiana
Explore the most affordable flight options available from St. Louis to Indiana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This Southwest deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:45 pmSTL - MDW
Nonstop1h 10mSouthwest
Mon 11/176:20 amMDW - STL
Nonstop1h 15mSouthwest
Deal found 10/16$97
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:24 pmSTL - ORD
Nonstop1h 23mUnited Airlines
Wed 11/192:23 pmORD - STL
Nonstop1h 26mUnited Airlines
Deal found 10/15$97
This Southwest deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:20 amSTL - MDW
1 stop3h 35mSouthwest
Mon 11/246:45 amMDW - STL
Nonstop1h 15mSouthwest
Deal found 10/16$104
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:35 amSTL - MDW
2 stops6h 15mSouthwest
Wed 11/195:15 pmMDW - STL
Nonstop1h 15mSouthwest
Deal found 10/15$112
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/188:05 amSTL - ORD
1 stop4h 55mSouthwest
Wed 11/192:15 pmORD - STL
1 stop5h 45mSouthwest
Deal found 10/15$117
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:50 amSTL - ORD
1 stop5h 10mSouthwest
Mon 11/171:45 pmORD - STL
1 stop8h 25mSouthwest
Deal found 10/15$122
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:43 pmSTL - ORD
Nonstop1h 30mUnited Airlines
Mon 11/242:20 pmORD - STL
Nonstop1h 26mUnited Airlines
Deal found 10/16$124
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:07 amSTL - MDW
1 stop7h 32mFrontier
Sat 11/151:37 pmMDW - STL
1 stop20h 35mFrontier
Deal found 10/15$131
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:24 pmSTL - ORD
Nonstop1h 23mUnited Airlines
Sat 11/89:20 amORD - STL
Nonstop1h 31mUnited Airlines
Deal found 10/16$131
This American Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/228:04 pmSTL - ORD
Nonstop1h 31mAmerican Airlines
Mon 11/242:50 pmORD - STL
Nonstop1h 26mAmerican Airlines
Deal found 10/15$132
This American Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:00 amSTL - ORD
Nonstop1h 30mAmerican Airlines
Wed 11/121:38 pmORD - STL
Nonstop1h 24mAmerican Airlines
Deal found 10/15$134
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/611:07 amSTL - ORD
1 stop13h 04mFrontier
Mon 11/106:00 amORD - STL
1 stop27h 07mFrontier
Deal found 10/15$139

Cheap flight deals from St. Louis to Indiana

Keep the following information in mind while searching for St. Louis to Indiana flight deals. Data was last updated October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$97
(Southwest)

One-way from

$49
(Southwest)

Popular in

March

Cheapest in

April

Average price

$430
Provider with most accurate pricing for Lambert-St Louis-Indianapolis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Indianapolis flights.
Search Deals
From Lambert-St Louis to Indiana
Search Deals
One-way flight from Lambert-St Louis to Indiana
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Indiana that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
Use the filters below to find and compare flights from St. Louis to Indiana that are best for you.

Fly from

St. Louis

Fly to

Indiana

Route

Depart

Return

Price

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 11/13

5:45 pm-6:55 pm

Nonstop1h 10m

Chicago Midway

Mon 11/17

6:20 am-7:35 am

Nonstop1h 15m

$97

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 11/12

5:24 pm-6:47 pm

Nonstop1h 23m

Chicago O'Hare Intl

Wed 11/19

2:23 pm-3:49 pm

Nonstop1h 26m

$97

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 11/20

10:20 am-1:55 pm

1 stop3h 35m

Chicago Midway

Mon 11/24

6:45 am-8:00 am

Nonstop1h 15m

$104

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Tue 11/18

10:35 am-4:50 pm

2 stops6h 15m

Chicago Midway

Wed 11/19

5:15 pm-6:30 pm

Nonstop1h 15m

$112

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 11/18

8:05 am-1:00 pm

1 stop4h 55m

Chicago O'Hare Intl

Wed 11/19

2:15 pm-8:00 pm

1 stop5h 45m

$117

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 1/22

1:15 pm-2:20 pm

Nonstop1h 05m

Chicago Midway

Sat 1/24

7:40 pm-8:55 pm

Nonstop1h 15m

$134

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Sat 11/22

4:20 pm-5:30 pm

Nonstop1h 10m

Chicago Midway

Mon 11/24

8:10 am-2:15 pm

1 stop6h 05m

$141

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Sat 1/24

5:50 pm-7:00 pm

Nonstop1h 10m

Chicago Midway

Mon 2/2

2:35 pm-6:20 pm

1 stop3h 45m

$144

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 11/13

7:50 am-12:45 pm

1 stop4h 55m

Chicago Midway

Sat 11/15

2:40 pm-3:50 pm

Nonstop1h 10m

$144

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 11/12

8:05 am-1:00 pm

1 stop4h 55m

Chicago O'Hare Intl

Wed 11/19

2:15 pm-9:35 pm

1 stop7h 20m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 60 results
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Best time to book a flight from St. Louis to Indiana

Have a flexible travel schedule? Discover the best time to fly to Indiana from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Indiana

What is the cheapest month to book a flight from St. Louis to Indiana?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Indiana (average of $203). Flying from St. Louis to Indiana in March is currently the most expensive (average of $456). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to IN?

Find hourly flight availability from St. Louis to Indiana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Indiana in the evening. If you’re flexible enough to do this you can expect to save up to 68% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Indiana

Get insights into the airlines that provide service to Indiana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Indiana. Reviews last updated October 16, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from St. Louis to Indiana to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,984 reviews
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,043 reviews
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Indiana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Indiana?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Indiana. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • How long is the flight from St. Louis to Indiana?

    Airlines like Southwest, United Airlines, and Delta fly from St. Louis to Indiana in about 1h 10m. The time it takes to get you to your destination can typically vary by up to 5h 35m. Airlines will cover a distance of 251 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from St. Louis to Indiana one-way?

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $49. However, be on the lookout for offers from United Airlines and Frontier, as they are both options that can get you from St. Louis to Indiana for a low price.

  • What are the most popular routes from St. Louis to Indiana?

    The most popular route from St. Louis to Indiana is Lambert-St Louis - Chicago O'Hare Intl. You may also consider Lambert-St Louis - Chicago Midway or Lambert-St Louis - Cincinnati Cinci./N. Kentucky.

  • Can I find deals for flights from St. Louis to Indiana that include hotel bookings?

    Yes. In addition to deals on St. Louis to Indiana flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Indiana?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Indiana.

  • Can I find deals for business class flights from St. Louis to Indiana?

    Yes. Cheapflights offers flight deals from St. Louis to Indiana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Indiana?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Indiana (average of $203). Flying from St. Louis to Indiana in March is currently the most expensive (average of $456). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Indiana

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from St. Louis to Indiana

Discover the top 3 airlines that operate flights from St. Louis to Indiana. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$226Average$288FlexibilityNo cancel feeOn-time71%
DeltaCheapest$234Average$287FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$243Average$363FlexibilityNo cancel feeOn-time69%

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