$49 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 2/18. 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
Indianapolis1 stop$153
Chicago
Chicago1 stop$134
Cincinnati
Cincinnati1 stop$154
Indianapolis
Indianapolis1 stop$153
Chicago
Chicago1 stop$134
Cincinnati
Cincinnati1 stop$154

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

Mon, Feb 23 - Mon, Mar 2
Frontier Logo
8:22 pm - 10:51 am
STL
-
ORD
14h 29m
1 stop
Frontier Logo
3:50 pm - 10:27 pm
ORD
-
STL
30h 37m
1 stop
$134Frontier
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
3:49 pm - 5:46 pm
STL
-
ORD
25h 57m
1 stop
Multiple Airlines Logo
8:30 am - 10:27 pm
ORD
-
STL
13h 57m
1 stop
$135Multiple Airlines
Sat, Feb 21 - Mon, Feb 23
Southwest Logo
2:40 pm - 3:45 pm
STL
-
MDW
1h 05mnonstop
Southwest Logo
2:40 pm - 3:55 pm
MDW
-
STL
1h 15mnonstop
$157Southwest
Sat, Feb 21 - Mon, Feb 23
Southwest Logo
2:40 pm - 3:45 pm
STL
-
MDW
1h 05mnonstop
Southwest Logo
4:10 pm - 10:55 pm
MDW
-
STL
6h 45m
1 stop
$167Southwest
Mon, Feb 23 - Wed, Feb 25
United Airlines Logo
9:55 am - 11:28 am
STL
-
ORD
1h 33mnonstop
United Airlines Logo
8:10 pm - 9:40 pm
ORD
-
STL
1h 30mnonstop
$171United Airlines
Thu, Feb 19 - Mon, Feb 23
American Airlines Logo
9:37 am - 10:59 am
STL
-
ORD
1h 22mnonstop
American Airlines Logo
8:40 am - 10:03 am
ORD
-
STL
1h 23mnonstop
$173American Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
7:41 am - 9:10 am
STL
-
ORD
1h 29mnonstop
United Airlines Logo
7:40 pm - 9:05 pm
ORD
-
STL
1h 25mnonstop
$174United Airlines
Thu, Feb 26 - Mon, Mar 2
Delta Logo
6:10 am - 1:05 pm
STL
-
MDW
6h 55m
1 stop
Delta Logo
6:40 pm - 11:36 pm
MDW
-
STL
4h 56m
1 stop
$191Delta
Wed, Feb 11 - Sun, Feb 15
Delta Logo
6:00 am - 10:50 am
STL
-
DAY
3h 50m
1 stop
Delta Logo
6:00 am - 11:02 am
DAY
-
STL
6h 02m
1 stop
$259Delta
Tue, Mar 24 - Wed, Mar 25
American Airlines Logo
8:00 am - 4:29 pm
STL
-
SDF
7h 29m
2 stops
American Airlines Logo
7:30 am - 3:35 pm
SDF
-
STL
9h 05m
1 stop
$294American 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 April, when tickets cost $226 (return) on average. On the other hand, the most expensive months are November and March, when the average cost of round-trip tickets is $684 and $647 respectively.

Good to know

Low seasonJune
Cheapest flight$48
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 12% 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 $222 one-way - $476 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 9210 reviews
8.1Crew
6.6Food
7.1Entertainment
7.3Comfort
7.7Boarding
Airline reviews

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

8.0 ExcellentAnonymous, Jan 2026
ORD - TPA
Read more United Airlines reviews

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

The flight crew where really good. Better then the crew from BNE to SFO

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

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

Information on your arrival and departure airports