STL - IND

$65 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 4/29. 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
$156
Typical prices: $431-$226
Frontier
Wed 4/22Sun 4/26
STL - IND • 1 stop
Cheapest one-way
$65
Typical prices: $298-$343
Frontier
Wed 4/29
STL - IND • 1 stop
Top airlines
Frontier
Cheapest • from $156 (round-trip)
American Airlines
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Indianapolis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Charlotte (CLT)
Cheapest • Avg $316 (round-trip)
Detroit (DTW)
Shortest trip • 3h 26m (one-way)
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 46% price drop
June
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, Apr 22 - Sun, Apr 26
Frontier Logo
8:23 pm - 11:32 am
STL
-
IND
14h 09m
1 stop
Frontier Logo
12:12 pm - 6:50 am
IND
-
STL
19h 38m
1 stop
$156Frontier
Fri, Apr 17 - Tue, Apr 21
Frontier Logo
8:39 am - 3:22 pm
STL
-
IND
5h 43m
1 stop
Frontier Logo
12:07 pm - 11:19 pm
IND
-
STL
12h 12m
1 stop
$180Frontier
Sat, May 2 - Sun, May 3
Frontier Logo
8:23 pm - 11:17 am
STL
-
IND
13h 54m
1 stop
Frontier Logo
6:01 pm - 6:50 am
IND
-
STL
13h 49m
2 stops
$182Frontier
Wed, Apr 22 - Sun, Apr 26
Frontier Logo
8:23 pm - 11:32 am
STL
-
IND
14h 09m
1 stop
Frontier Logo
1:20 pm - 6:50 am
IND
-
STL
18h 30m
2 stops
$209Frontier
Thu, Apr 16 - Mon, Apr 20
Frontier Logo
11:25 am - 10:32 am
STL
-
IND
22h 07m
1 stop
Frontier Logo
7:14 pm - 6:50 am
IND
-
STL
36h 36m
2 stops
$210Frontier
Tue, May 19 - Fri, May 29
Frontier Logo
6:33 pm - 11:23 am
STL
-
IND
15h 50m
1 stop
Frontier Logo
12:14 pm - 8:55 am
IND
-
STL
21h 41m
1 stop
$214Frontier
Thu, Apr 30 - Thu, May 7
Multiple Airlines Logo
11:21 am - 10:32 am
STL
-
IND
22h 11m
1 stop
Multiple Airlines Logo
8:36 pm - 8:55 am
IND
-
STL
37h 19m
2 stops
$219Multiple Airlines
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
4:59 pm - 7:38 am
STL
-
IND
13h 39m
1 stop
Frontier Logo
12:12 pm - 6:50 am
IND
-
STL
19h 38m
1 stop
$221Frontier
Tue, May 19 - Wed, May 27
Frontier Logo
6:33 pm - 11:23 am
STL
-
IND
15h 50m
1 stop
Frontier Logo
8:39 pm - 5:33 pm
IND
-
STL
21h 54m
2 stops
$226Frontier
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
8:06 pm - 10:32 am
STL
-
IND
13h 26m
2 stops
Frontier Logo
12:12 pm - 6:50 am
IND
-
STL
19h 38m
1 stop
$228Frontier
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.

How much is a round-trip flight from St. Louis to Indianapolis?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Indianapolis departing in April.

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 August, where tickets cost $234 (return) on average. On the other hand, the most expensive months are January and November, where the average cost of round-trip tickets is $685 and $684 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$65
Best time to beat the crowds but there is an average 57% increase in price.
Most popular time to fly with an average 25% increase in price.
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 $65 for a one-way ticket and $156 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.
7.1
American AirlinesOverall score based on 11551 reviews
7.2Comfort
7.9Crew
7.5Boarding
6.4Food
6.9Entertainment
Airline reviews

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

2.0 MediocreSerena, Apr 2026
DCA - TPA
Read more American Airlines reviews

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Early morning flight and no food in First Class except a "salmon" box. No thank you. Was informed before take off by Captain that the plane was not serviced before we boarded in Phoenix. How does that happen? Need more frequent additions/turn over on the Entertainment. Thanks

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

Flight was delayed. No urgency by American Airlines team to assist those with connecting flights. It was basically you are on your own to run through the terminals to try and make your connection. Thanks, Mary

I have never been assaulted they way I was today in Charlotte - shame on American

One of our group members was struggling to walk. In Charlotte we asked for a wheelchair and she was accompanied by Desmond. I was impressed by his patience and attention. In Boston she received the same service. I didn’t get the name of the helper but she went above and beyond in assisting us. A great AA service

Better snacks but flight and crew were amazing on this flight

Found that the plane used for this short flight is smaller and therefore the seats are really squeezed tight.

It was the most un-special flight experience in my life.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

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)