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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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IND
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$112
(American Airlines)

One-way from

$49
(Southwest)

Popular in

March

Cheapest in

December

Average price

$486
Provider with most accurate pricing for Lambert-St Louis-Indianapolis flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Indianapolis flights.
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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. 8% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This Southwest deal was found by Cheapflights users on 3/25. 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 5/25:35 amSTL - MDW
Nonstop1h 10mSouthwest
Mon 5/56:25 pmMDW - STL
Nonstop1h 10mSouthwest
Deal found 3/25$112
This American Airlines deal was found by Cheapflights users on 3/25. 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 4/197:45 amSTL - ORD
Nonstop1h 20mAmerican Airlines
Tue 4/294:45 pmORD - STL
Nonstop1h 17mAmerican Airlines
Deal found 3/25$112
This Southwest deal was found by Cheapflights users on 3/25. 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 4/298:00 amSTL - ORD
1 stop6h 00mSouthwest
Thu 5/15:45 pmORD - STL
1 stop5h 00mSouthwest
Deal found 3/25$117
This Mytrip deal was found by Cheapflights users on 3/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/912:15 pmSTL - ORD
1 stop3h 35mSouthern / Mokulele
Fri 5/168:25 amORD - STL
1 stop11h 45mSouthern / Mokulele
Deal found 3/25$136
This Frontier deal was found by Cheapflights users on 3/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/84:57 pmSTL - MDW
1 stop6h 27mFrontier
Sat 4/1212:58 pmMDW - STL
1 stop10h 48mFrontier
Deal found 3/25$160
This Frontier deal was found by Cheapflights users on 3/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/56:33 pmSTL - ORD
1 stop10h 28mFrontier
Wed 4/911:45 amORD - STL
1 stop12h 01mFrontier
Deal found 3/25$160
This United Airlines deal was found by Cheapflights users on 3/25. 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 5/298:10 amSTL - ORD
Nonstop1h 25mUnited Airlines
Mon 6/22:06 pmORD - STL
Nonstop1h 24mUnited Airlines
Deal found 3/25$173
This CheapOair deal was found by Cheapflights users on 3/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/126:33 pmSTL - ORD
1 stop10h 28mMultiple Airlines
Mon 4/148:25 amORD - STL
1 stop11h 45mMultiple Airlines
Deal found 3/25$174
This Delta deal was found by Cheapflights users on 3/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/255:32 pmSTL - MDW
1 stop4h 50mDelta
Mon 4/287:00 pmMDW - STL
1 stop4h 34mDelta
Deal found 3/24$177
This Mytrip deal was found by Cheapflights users on 3/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:10 pmSTL - SDF
1 stop27h 07mSpirit Airlines
Tue 4/295:05 amSDF - STL
1 stop13h 10mSpirit Airlines
Deal found 3/25$179
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/156:00 amSTL - ORD
2 stops6h 39mDelta
Tue 4/2211:15 amORD - STL
1 stop6h 47mDelta
Deal found 3/25$182
This Booking.com deal was found by Cheapflights users on 3/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/225:41 pmSTL - CVG
1 stop16h 52mFrontier
Tue 4/2912:54 pmCVG - STL
1 stop12h 10mFrontier
Deal found 3/25$190

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 March 26, 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

Fri 5/2

5:35 am-6:45 am

Nonstop1h 10m

Chicago Midway

Mon 5/5

6:25 pm-7:35 pm

Nonstop1h 10m

$112

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 4/19

7:45 am-9:05 am

Nonstop1h 20m

Chicago O'Hare Intl

Tue 4/29

4:45 pm-6:02 pm

Nonstop1h 17m

$112

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 4/29

8:00 am-2:00 pm

1 stop6h 00m

Chicago O'Hare Intl

Thu 5/1

5:45 pm-10:45 pm

1 stop5h 00m

$117

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Fri 5/9

12:15 pm-3:50 pm

1 stop3h 35m

Chicago O'Hare Intl

Fri 5/16

8:25 am-8:10 pm

1 stop11h 45m

$136

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Tue 4/8

4:57 pm-11:24 pm

1 stop6h 27m

Chicago Midway

Sat 4/12

12:58 pm-11:46 pm

1 stop10h 48m

$160

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 4/5

6:33 pm-5:01 am

1 stop10h 28m

Chicago O'Hare Intl

Wed 4/9

11:45 am-11:46 pm

1 stop12h 01m

$160

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 5/29

8:10 am-9:35 am

Nonstop1h 25m

Chicago O'Hare Intl

Mon 6/2

2:06 pm-3:30 pm

Nonstop1h 24m

$173

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 4/12

6:33 pm-5:01 am

1 stop10h 28m

Chicago O'Hare Intl

Mon 4/14

8:25 am-8:10 pm

1 stop11h 45m

$174

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Fri 4/25

5:32 pm-10:22 pm

1 stop4h 50m

Chicago Midway

Mon 4/28

7:00 pm-11:34 pm

1 stop4h 34m

$177

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 4/22

6:10 pm-10:17 pm

1 stop27h 07m

Louisville Intl

Tue 4/29

5:05 am-5:15 pm

1 stop13h 10m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 58 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 $362). 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 March 26, 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.

Rainfall in Indiana by month

Plan your trip to Indiana by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Indiana ranges from 2.3 - 5.1 inches per month. May is typically the wettest month, when rainfall can reach 5.1 in. February is typically the driest time to visit Indiana when rainfall is around 2.3 in.

Temperature in Indiana by month

Plan your trip to Indiana by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Indiana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

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 March 26, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from St. Louis to Indiana. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,792 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,891 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,608 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 Southwest, with whom users have recently found tickets for as low as $49. However, be on the lookout for offers from American Airlines and Southern / Mokulele, 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 $362). 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$216Average$287FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$217Average$280FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$276Average$444FlexibilityNo cancel feeOn-time69%
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