$67 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$172
Chicago
Chicago1 stop$160
Cincinnati
Cincinnati1 stop$169
Indianapolis
Indianapolis1 stop$172
Chicago
Chicago1 stop$160
Cincinnati
Cincinnati1 stop$169

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, Apr 7 - Sat, Apr 11
Frontier Logo
11:21 am - 10:19 pm
STL
-
MDW
10h 58m
1 stop
Frontier Logo
10:40 am - 11:25 pm
MDW
-
STL
12h 45m
1 stop
$160Frontier
Tue, Apr 7 - Sat, Apr 11
Frontier Logo
4:54 pm - 11:36 pm
STL
-
ORD
6h 42m
1 stop
Frontier Logo
4:21 pm - 11:25 pm
ORD
-
STL
7h 04m
1 stop
$160Frontier
Fri, Feb 6 - Sat, Feb 7
Multiple Airlines Logo
5:42 pm - 9:43 am
STL
-
IND
15h 01m
1 stop
Multiple Airlines Logo
12:21 pm - 11:33 pm
IND
-
STL
12h 12m
1 stop
$172Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
3:49 pm - 5:46 pm
STL
-
ORD
25h 57m
1 stop
Multiple Airlines Logo
4:51 pm - 10:37 am
ORD
-
STL
17h 46m
1 stop
$176Multiple Airlines
Tue, Apr 7 - Sat, Apr 11
Southwest Logo
5:35 am - 6:45 am
STL
-
MDW
1h 10mnonstop
Southwest Logo
12:45 pm - 2:00 pm
MDW
-
STL
1h 15mnonstop
$224Southwest
Fri, Feb 13 - Sun, Feb 15
American Airlines Logo
2:00 pm - 10:30 pm
STL
-
DAY
7h 30m
1 stop
American Airlines Logo
8:32 am - 1:43 pm
DAY
-
STL
6h 11m
1 stop
$249American Airlines
Sat, Feb 14 - Sat, Feb 21
United Airlines Logo
11:25 am - 5:19 pm
STL
-
SDF
4h 54m
1 stop
United Airlines Logo
9:00 am - 2:29 pm
SDF
-
STL
6h 29m
1 stop
$255United Airlines
Sat, Feb 14 - Sat, Feb 21
American Airlines Logo
2:25 pm - 9:26 pm
STL
-
SDF
6h 01m
1 stop
American Airlines Logo
5:00 am - 1:50 pm
SDF
-
STL
9h 50m
2 stops
$260American Airlines
Thu, Feb 19 - Sun, Feb 22
United Airlines Logo
7:41 am - 1:25 pm
STL
-
DAY
4h 44m
1 stop
United Airlines Logo
7:00 am - 10:36 am
DAY
-
STL
4h 36m
1 stop
$270United Airlines
Mon, Feb 9 - Mon, Feb 9
Southwest Logo
7:50 am - 5:45 pm
STL
-
IND
8h 55m
2 stops
Southwest Logo
7:45 pm - 9:45 pm
IND
-
STL
3h 00m
1 stop
$284Southwest
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.

Find deals

Good to know

Low seasonJune
Cheapest flight$67
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 Midway 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 $216 one-way - $469 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 9176 reviews
7.3Comfort
6.6Food
7.7Boarding
8.1Crew
7.1Entertainment
Airline reviews

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.

10.0 ExcellentAnonymous, Jan 2026
IAD - ATL
Read more United Airlines reviews

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

Delayed, toilets did not flush, pilot parked to far away from Gate

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

left on time, reasonable boarding process arrived early luggage came out quickly

I like flying first class, and United has a nice one

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

It was a good trip. Flight Attendants were friendly and responsive.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Crew in Columbia was not prepared for landing. It was a bit of a disaster and getting bags took forever.

My seat tv didn’t work the whole trip. And the seat space is too small despite being seated at the front.

The seat cushions were very worn so they were extremely uncomfortable.

Delayed, no updates, had a rewards number but was not working

The seats from lax to DFW was so tight that I could not move my legs . No WiFi and had to pay . Not a good selection of entertainment

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

We were upgraded to First Class and it was a great flight

Amazing I love American. I’ll never fly anyone else if I can help it.

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

Information on your arrival and departure airports

St. Louis (STL)