STL - IND

$68 Find Cheap Flights from St. Louis to Indianapolis

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 Indianapolis departing on 2/25. 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 Indianapolis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Indianapolis, 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 Indianapolis, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$153
Overall average: $262
Frontier
Wed 2/25Wed 3/4
STL - IND • 1 stop
Cheapest one-way
$68
Typical prices: $224-$288
Frontier
Wed 2/25
STL - IND • 1 stop
Top airlines
Frontier
Cheapest • from $153 (round-trip)
American Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 42% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Indianapolis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Indianapolis (STL-IND)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Indianapolis 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 Indianapolis

Wed, Feb 25 - Wed, Mar 4
Frontier Logo
8:17 pm - 6:31 pm
STL
-
IND
21h 14m
1 stop
Frontier Logo
1:23 pm - 10:27 pm
IND
-
STL
10h 04m
1 stop
$153Frontier
Mon, Feb 23 - Mon, Mar 2
Multiple Airlines Logo
3:49 pm - 8:32 am
STL
-
IND
15h 43m
1 stop
Multiple Airlines Logo
6:10 pm - 10:27 pm
IND
-
STL
29h 17m
1 stop
$164Multiple Airlines
Mon, Feb 23 - Mon, Mar 2
Multiple Airlines Logo
8:22 pm - 11:25 pm
STL
-
IND
26h 03m
2 stops
Multiple Airlines Logo
6:10 pm - 10:27 pm
IND
-
STL
29h 17m
1 stop
$169Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
8:17 pm - 6:31 pm
STL
-
IND
21h 14m
1 stop
Multiple Airlines Logo
8:18 pm - 7:02 am
IND
-
STL
35h 44m
2 stops
$178Multiple Airlines
Sat, Feb 21 - Tue, Mar 3
Frontier Logo
8:17 pm - 9:10 am
STL
-
IND
35h 53m
2 stops
Frontier Logo
9:23 pm - 10:27 pm
IND
-
STL
26h 04m
1 stop
$184Frontier
Sat, Feb 21 - Tue, Mar 3
Frontier Logo
8:17 pm - 6:34 pm
STL
-
IND
21h 17m
1 stop
Frontier Logo
9:23 pm - 10:27 pm
IND
-
STL
26h 04m
1 stop
$204Frontier
Mon, Feb 9 - Fri, Feb 13
Multiple Airlines Logo
5:42 pm - 9:43 am
STL
-
IND
15h 01m
1 stop
Multiple Airlines Logo
7:41 pm - 6:51 am
IND
-
STL
12h 10m
1 stop
$217Multiple Airlines
Mon, Feb 9 - Thu, Feb 12
Frontier Logo
5:42 pm - 8:28 pm
STL
-
IND
25h 46m
1 stop
Frontier Logo
7:27 pm - 6:51 am
IND
-
STL
12h 24m
1 stop
$226Frontier
Mon, Feb 9 - Thu, Feb 12
Multiple Airlines Logo
5:42 pm - 9:43 am
STL
-
IND
15h 01m
1 stop
Multiple Airlines Logo
8:52 pm - 6:51 am
IND
-
STL
34h 59m
2 stops
$234Multiple Airlines
Tue, Feb 10 - Sat, Feb 14
Frontier Logo
3:49 pm - 12:28 pm
STL
-
IND
19h 39m
1 stop
Frontier Logo
8:58 pm - 6:51 am
IND
-
STL
34h 53m
2 stops
$246Frontier
Booking Insights

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

Get data-powered insights and trends into flights from St. Louis to Indianapolis 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 Indianapolis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Indianapolis, 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 Indianapolis is April, where tickets cost $226 (return) on average. On the other hand, the most expensive months are November and March, where the average cost of round-trip tickets is $684 and $647 respectively.

Find deals

Good to know

Low seasonAugust
Cheapest flight$68
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from St. Louis to Indianapolis

When to book flights from St. Louis to Indianapolis

Are your dates flexible? Find out the best times to travel from St. Louis to Indianapolis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Indianapolis

  • What is the cheapest flight from St. Louis to Indianapolis?

    In the last 3 days, the lowest price for a flight from St. Louis to Indianapolis was $68 for a one-way ticket and $153 for a round-trip.

  • Do I need a passport to fly between St. Louis and Indianapolis?

    No

  • Which airports will I be using when flying from St. Louis to Indianapolis?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Indianapolis, also known as Indianapolis.

  • Which aircraft models fly most regularly from St. Louis to Indianapolis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Indianapolis?

    oneworld is the only airline alliance operating flights between St. Louis and Indianapolis.

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

    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 Indianapolis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Indianapolis from St. Louis 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 Indianapolis?

    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 to Indianapolis with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and IND can sometimes prove cheaper using this method.

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

    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 to Indianapolis from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from St. Louis to Indianapolis

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Indianapolis. 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 Indianapolis? 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.
7.2
American AirlinesOverall score based on 11197 reviews
7.5Boarding
6.9Entertainment
7.2Comfort
6.4Food
8.0Crew
Airline reviews

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

10.0 ExcellentCindy, Jan 2026
MIA - BHM
Read more American Airlines reviews

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

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

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

Information on your arrival and departure airports

St. Louis (STL)
Indianapolis (IND)