$46 Find Cheap Flights from St. Louis to Indiana

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Indiana departing on 3/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Indiana

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Indiana, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Indiana, as well as popular online travel agencies
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Cheap Flights from St. Louis to Indiana

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Indianapolis
Indianapolis2 stops$186
Chicago
Chicagononstop$196
Cincinnati
Cincinnati1 stop$170
Indianapolis
Indianapolis2 stops$186
Chicago
Chicagononstop$196
Cincinnati
Cincinnati1 stop$170

Book Cheap St. Louis to Indiana Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Indiana that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Indiana

Tue, Mar 10 - Wed, Mar 11
Frontier Logo
4:51 pm - 12:41 am
STL
-
CVG
6h 50m
1 stop
Frontier Logo
5:45 am - 7:17 am
CVG
-
STL
26h 32m
1 stop
$170Frontier
Mon, Mar 9 - Fri, Mar 13
Frontier Logo
2:09 pm - 6:33 pm
STL
-
CVG
27h 24m
1 stop
Frontier Logo
7:20 am - 9:49 am
CVG
-
STL
27h 29m
1 stop
$173Frontier
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
12:16 pm - 11:15 pm
STL
-
IND
33h 59m
2 stops
Multiple Airlines Logo
3:00 pm - 10:32 am
IND
-
STL
20h 32m
1 stop
$186Multiple Airlines
Thu, Mar 12 - Fri, Mar 13
Southwest Logo
9:50 pm - 11:00 pm
STL
-
MDW
1h 10mnonstop
Southwest Logo
2:35 pm - 3:50 pm
MDW
-
STL
1h 15mnonstop
$196Southwest
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
12:16 pm - 8:23 am
STL
-
ORD
20h 07m
1 stop
Multiple Airlines Logo
5:11 am - 10:32 am
ORD
-
STL
29h 21m
2 stops
$198Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
3:55 pm - 5:05 pm
STL
-
MDW
1h 10mnonstop
Southwest Logo
8:15 am - 9:30 am
MDW
-
STL
1h 15mnonstop
$201Southwest
Thu, Mar 12 - Thu, Mar 12
United Airlines Logo
7:41 am - 9:10 am
STL
-
ORD
1h 29mnonstop
United Airlines Logo
7:42 pm - 9:07 pm
ORD
-
STL
1h 25mnonstop
$204United Airlines
Fri, Apr 17 - Sun, Apr 19
American Airlines Logo
6:55 pm - 11:54 pm
STL
-
ORD
4h 59m
1 stop
American Airlines Logo
2:32 pm - 4:00 pm
ORD
-
STL
1h 28mnonstop
$206American Airlines
Wed, May 20 - Wed, May 27
American Airlines Logo
5:51 am - 7:21 am
STL
-
ORD
1h 30mnonstop
American Airlines Logo
5:52 pm - 7:19 pm
ORD
-
STL
1h 27mnonstop
$207American Airlines
Wed, Apr 1 - Tue, Apr 7
United Airlines Logo
6:30 am - 1:17 pm
STL
-
SDF
5h 47m
1 stop
United Airlines Logo
5:43 pm - 9:08 pm
SDF
-
STL
4h 25m
1 stop
$255United Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Indiana flights

Get data-powered insights and trends into flights from St. Louis to Indiana to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from St. Louis to Indiana?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Indiana, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Indiana is August, when tickets cost $234 (return) on average. On the other hand, the most expensive months are January and November, when the average cost of round-trip tickets is $685 and $684 respectively.

Good to know

Low seasonJanuary
Cheapest flight$46
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly with an average 7% increase in price.
Flight from St. Louis to Chicago O'Hare Airport

FAQs - booking Indiana flights

  • How does KAYAK find such low prices on flights from St. Louis to Indiana?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Indiana.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Indiana?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Indiana is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Indiana?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Indiana with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Indiana?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Indiana up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Indiana?

    The cheapest time of day to fly to Indiana is generally in the morning, when round-trip flights cost $1,297 on average. The most expensive time of day to fly to Indiana is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,297.

Top tips for finding cheap flights to Indiana

  • Looking for a cheap flight? 25% of our users found tickets from St. Louis to the following destinations at these prices or less: Chicago $243 one-way - $482 round-trip

Reviews of the top airlines flying from St. Louis to Indiana

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Indiana. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Indiana? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9342 reviews
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

10.0 ExcellentAnonymous, Feb 2026
DEN - RSW
Read more United Airlines reviews

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

it was a very short flight so my expectations were low.

As great a red-eye flight as red-eye flights can be.

Very old flight - time to retire it for newer airplanes

Never ontime and always delays. Long waits for customer service and often app doesn’t work

Arriving plane went to wrong gate. Flight Attendant was late. Was in no Hurry when he arrived. Flight was fine. Plane had to wait 20 minutes to get assigned a gate due to designated gate tied up. barely connected.. Boarded extremely late on final leg of trip.

We arrived 25 minutes early only to be told our gate was occupied and so we sat for close to 30 minutes to pull into a gate. That’s not an early arrival!

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

As previously stated the delay I experienced flying from Wichita to Chicago caused a host of issues. When I finally was able to be booked on the last remaining American flight from Chicago to Cincinnati, the gate changed four times with the last change occurring very near the scheduled boarding time. While I didn't have a problem moving from gate to gate, I did notice and make note of others that had mobility issues and had to move each time for the gate change.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

There was free WiFi (definitely a plus), but the flight was delayed 45 minutes waiting on a catering truck that never arrived. The pilot said there would be food vouchers given out at the end of the gangway to make up for the inconvenience, but there was no one offering those. Delay made me late for work!

Waiting for gate in RDU for more than 20mins is crazy.

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

Information on your arrival and departure airports