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$46+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IND
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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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 August 14, 2025.

Round-trip from

$87
(Southwest)

One-way from

$46
(American Airlines)

Popular in

March

Cheapest in

April

Average price

$349
From Lambert-St Louis to Indiana
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One-way flight from Lambert-St Louis to Indiana
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Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 14, 2025.

This Southwest deal was found by Cheapflights users on 8/14. 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 9/47:20 amSTL - MDW
Nonstop1h 10mSouthwest
Mon 9/85:25 amMDW - STL
1 stop5h 40mSouthwest
Deal found 8/14$87
This American Airlines deal was found by Cheapflights users on 8/12. 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 9/137:23 amSTL - ORD
Nonstop1h 22mAmerican Airlines
Tue 9/238:31 pmORD - STL
Nonstop1h 22mAmerican Airlines
Deal found 8/12$91
This Southwest deal was found by Cheapflights users on 8/14. 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.
Sat 9/137:15 amSTL - MDW
2 stops6h 15mSouthwest
Sat 9/203:55 pmMDW - STL
Nonstop1h 15mSouthwest
Deal found 8/14$92
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 9/47:23 amSTL - ORD
Nonstop1h 22mAmerican Airlines
Mon 9/86:59 pmORD - STL
Nonstop1h 26mAmerican Airlines
Deal found 8/13$92
This Southwest deal was found by Cheapflights users on 8/14. 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.
Mon 9/227:15 amSTL - ORD
1 stop8h 05mSouthwest
Tue 9/231:50 pmORD - STL
1 stop8h 05mSouthwest
Deal found 8/14$97
This Southwest deal was found by Cheapflights users on 8/14. 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.
Sat 9/131:45 pmSTL - ORD
2 stops8h 15mSouthwest
Sat 9/201:30 pmORD - STL
1 stop6h 45mSouthwest
Deal found 8/14$102
This Southwest deal was found by Cheapflights users on 8/12. 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 9/96:25 amSTL - ORD
1 stop6h 20mSouthwest
Thu 9/117:30 amORD - STL
2 stops11h 05mSouthwest
Deal found 8/12$108
This Southwest deal was found by Cheapflights users on 8/14. 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.
Sun 9/147:30 amSTL - MDW
Nonstop1h 10mSouthwest
Mon 9/1511:45 amMDW - STL
Nonstop1h 10mSouthwest
Deal found 8/14$114
This American Airlines deal was found by Cheapflights users on 8/14. 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.
Fri 9/127:23 amSTL - ORD
Nonstop1h 22mAmerican Airlines
Tue 9/168:31 pmORD - STL
Nonstop1h 22mAmerican Airlines
Deal found 8/14$121
This Southwest deal was found by Cheapflights users on 8/13. 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 9/114:25 pmSTL - MDW
1 stop3h 25mSouthwest
Sun 9/146:45 amMDW - STL
Nonstop1h 10mSouthwest
Deal found 8/13$124
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 9/117:04 pmSTL - ORD
Nonstop1h 32mUnited Airlines
Thu 9/1812:55 pmORD - STL
Nonstop1h 24mUnited Airlines
Deal found 8/13$127
This Southwest deal was found by Cheapflights users on 8/14. 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.
Fri 9/126:50 pmSTL - MDW
1 stop4h 00mSouthwest
Tue 9/164:30 pmMDW - STL
1 stop3h 35mSouthwest
Deal found 8/14$134

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 August 14, 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 9/4

1:50 pm-6:05 pm

1 stop4h 15m

Chicago Midway

Mon 9/8

2:35 pm-3:45 pm

Nonstop1h 10m

$87

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Sat 9/13

11:55 am-6:35 pm

1 stop6h 40m

Chicago Midway

Mon 9/15

11:45 am-12:55 pm

Nonstop1h 10m

$87

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Sat 9/13

11:35 am-4:35 pm

1 stop5h 00m

Chicago Midway

Sat 9/20

3:55 pm-5:10 pm

Nonstop1h 15m

$87

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Mon 9/15

4:20 pm-5:30 pm

Nonstop1h 10m

Chicago Midway

Wed 9/17

8:30 am-1:40 pm

1 stop5h 10m

$87

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Wed 10/15

2:00 pm-7:25 pm

1 stop5h 25m

Chicago Midway

Thu 10/16

7:40 am-8:50 am

Nonstop1h 10m

$87

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Mon 9/8

7:20 pm-8:25 pm

Nonstop1h 05m

Chicago Midway

Wed 9/10

11:35 am-4:35 pm

1 stop5h 00m

$87

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Mon 9/8

4:15 pm-9:35 pm

1 stop5h 20m

Chicago Midway

Tue 9/9

5:40 pm-6:55 pm

Nonstop1h 15m

$87

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Wed 9/17

8:50 pm-9:55 pm

Nonstop1h 05m

Chicago Midway

Sat 9/20

7:00 am-2:45 pm

1 stop7h 45m

$87

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Mon 9/22

7:23 am-8:45 am

Nonstop1h 22m

Chicago O'Hare Intl

Tue 9/23

8:31 pm-9:53 pm

Nonstop1h 22m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 11/8

6:00 am-7:30 am

Nonstop1h 30m

Chicago O'Hare Intl

Tue 11/11

3:23 pm-4:47 pm

Nonstop1h 24m

$91

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

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, August is the cheapest month in which you can book a flight from St. Louis to Indiana (average of $297). Flying from St. Louis to Indiana in March is currently the most expensive (average of $361). 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 August 14, 2025.

When flying from St. Louis to Indiana, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 August 14, 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
7,980 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $46. However, be on the lookout for offers from Southwest 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, August is the cheapest month in which you can book a flight from St. Louis to Indiana (average of $297). Flying from St. Louis to Indiana in March is currently the most expensive (average of $361). 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

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$216Average$266FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$422FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$226Average$287FlexibilityNo cancel feeOn-time71%

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