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$55+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IND
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from St. Louis to Indiana

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Indiana (USIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$110
(Frontier)

One-way from

$55
(Frontier)
From Lambert-St Louis to Indiana
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One-way flight from Lambert-St Louis to Indiana
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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 January 21, 2025.

This Frontier deal was found by Cheapflights users on 1/20. 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.
Mon 4/74:57 pmSTL - CVG
1 stop7h 28mFrontier
Thu 4/1012:03 pmCVG - STL
1 stop12h 43mFrontier
Deal found 1/20$110
This Fly & Visit Rome deal was found by Cheapflights users on 1/20. 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 Fly & Visit Rome is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2712:15 pmSTL - ORD
1 stop19h 25mSouthern / Mokulele
Mon 3/38:20 pmORD - STL
1 stop15h 25mSouthern / Mokulele
Deal found 1/20$124
This CheapOair deal was found by Cheapflights users on 1/20. 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.
Fri 2/215:20 pmSTL - ORD
1 stop15h 55mFrontier
Tue 2/253:14 pmORD - STL
1 stop8h 29mFrontier
Deal found 1/20$130
This Mytrip deal was found by Cheapflights users on 1/20. 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.
Wed 2/55:05 pmSTL - ORD
1 stop16h 22mMultiple Airlines
Wed 3/128:20 pmORD - STL
1 stop15h 25mMultiple Airlines
Deal found 1/20$134
This Southwest deal was found by Cheapflights users on 1/21. 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 2/136:00 amSTL - MDW
Nonstop1h 10mSouthwest
Mon 2/1710:35 pmMDW - STL
Nonstop1h 15mSouthwest
Deal found 1/21$137
This American Airlines deal was found by Cheapflights users on 1/21. 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 2/1311:57 amSTL - ORD
Nonstop1h 22mAmerican Airlines
Mon 2/178:45 pmORD - STL
Nonstop1h 18mAmerican Airlines
Deal found 1/21$139
This CheapOair deal was found by Cheapflights users on 1/20. 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.
Mon 2/245:20 pmSTL - MDW
1 stop21h 52mFrontier
Sat 3/112:43 pmMDW - STL
1 stop11h 00mFrontier
Deal found 1/20$160
This Delta deal was found by Cheapflights users on 1/21. 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.
Thu 5/11:41 pmSTL - MDW
1 stop3h 22mDelta
Wed 5/79:30 amMDW - STL
1 stop3h 49mDelta
Deal found 1/21$177
This Delta deal was found by Cheapflights users on 1/21. 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.
Thu 2/136:00 amSTL - ORD
2 stops6h 55mDelta
Mon 2/174:58 pmORD - STL
1 stop4h 51mDelta
Deal found 1/21$182
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 2/122:10 pmSTL - DAY
1 stop5h 56mAmerican Airlines
Sat 2/158:30 amDAY - STL
1 stop3h 51mAmerican Airlines
Deal found 1/20$199
This United Airlines deal was found by Cheapflights users on 1/21. 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 2/143:32 pmSTL - ORD
Nonstop1h 22mUnited Airlines
Mon 2/172:20 pmORD - STL
Nonstop1h 20mUnited Airlines
Deal found 1/21$228
This Delta deal was found by Cheapflights users on 1/21. 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 3/186:00 amSTL - IND
1 stop4h 41mDelta
Wed 3/196:25 amIND - STL
1 stop4h 11mDelta
Deal found 1/21$237

Find flights from St. Louis to Indiana within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 2/27

12:15 pm-7:40 am

1 stop19h 25m

Chicago O'Hare Intl

Mon 3/3

8:20 pm-11:45 am

1 stop15h 25m

$124

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Fri 2/21

5:20 pm-9:15 am

1 stop15h 55m

Chicago O'Hare Intl

Tue 2/25

3:14 pm-11:43 pm

1 stop8h 29m

$130

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 2/5

5:05 pm-9:27 am

1 stop16h 22m

Chicago O'Hare Intl

Wed 3/12

8:20 pm-11:45 am

1 stop15h 25m

$134

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 2/13

9:15 pm-10:30 pm

Nonstop1h 15m

Chicago Midway

Mon 2/17

5:25 am-6:45 am

Nonstop1h 20m

$137

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 2/13

5:45 am-7:09 am

Nonstop1h 24m

Chicago O'Hare Intl

Mon 2/17

8:45 pm-10:03 pm

Nonstop1h 18m

$139

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Mon 2/24

5:20 pm-3:12 pm

1 stop21h 52m

Chicago Midway

Sat 3/1

12:43 pm-11:43 pm

1 stop11h 00m

$160

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 3/6

5:24 pm-12:54 am

1 stop6h 30m

Cincinnati Cinci./N. Kentucky

Sun 3/9

7:51 pm-9:16 am

2 stops14h 25m

$165

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Wed 2/12

6:00 am-10:12 am

1 stop4h 12m

Chicago Midway

Thu 2/13

6:00 am-11:46 am

1 stop5h 46m

$177

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 2/11

1:15 pm-9:30 pm

1 stop8h 15m

Chicago O'Hare Intl

Wed 2/12

6:15 am-4:55 pm

2 stops10h 40m

$177

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 2/13

6:00 am-12:55 pm

2 stops6h 55m

Chicago O'Hare Intl

Mon 2/17

4:58 pm-9:49 pm

1 stop4h 51m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 49 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.

Travel insights for flights from St. Louis to Indiana

Get recent, data-driven insights about flights from St. Louis to Indiana including ideal travel times, pricing trends, and more.

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 January 21, 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 January 21, 2025.
Read reviews from past customers who have flown Southwest, Southern / Mokulele 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
4,662 reviews

Comfort

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 Frontier, with whom users have recently found tickets for as low as $55. However, be on the lookout for offers from Southern / Mokulele and Southwest, 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.

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$198Average$280FlexibilityNo cancel feeOn-time71%
DeltaCheapest$216Average$266FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$217Average$404FlexibilityNo cancel feeOn-time69%
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