STL - IND

$99 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 2/4. 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
$172
Overall average: $262
Multiple Airlines
Fri 2/6Sat 2/7
STL - IND • 1 stop
Cheapest one-way
$99
Typical prices: $224-$288
Frontier
Wed 2/4
STL - IND • 1 stop
When to travel
April
Cheapest • 39% 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

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 - Thu, Mar 5
Frontier Logo
3:49 pm - 12:28 pm
STL
-
IND
19h 39m
1 stop
Frontier Logo
7:27 pm - 1:19 pm
IND
-
STL
18h 52m
1 stop
$179Frontier
Tue, Mar 3 - Thu, Mar 5
Frontier Logo
3:49 pm - 12:28 pm
STL
-
IND
19h 39m
1 stop
Frontier Logo
7:27 pm - 7:02 am
IND
-
STL
12h 35m
2 stops
$211Frontier
Sat, Jan 31 - Tue, Feb 3
Multiple Airlines Logo
8:22 pm - 11:43 am
STL
-
IND
14h 21m
1 stop
Multiple Airlines Logo
10:38 am - 6:51 am
IND
-
STL
21h 13m
2 stops
$232Multiple Airlines
Mon, Feb 9 - Mon, Feb 9
American Airlines Logo
6:00 am - 10:38 am
STL
-
IND
3h 38m
1 stop
American Airlines Logo
5:07 pm - 11:12 pm
IND
-
STL
7h 05m
1 stop
$279American 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
Sat, Feb 7 - Sun, Feb 8
Frontier Logo
8:22 pm - 11:43 am
STL
-
IND
14h 21m
1 stop
Frontier Logo
9:34 pm - 9:21 am
IND
-
STL
12h 47m
1 stop
$289Frontier
Mon, Feb 2 - Thu, Feb 5
Multiple Airlines Logo
8:22 pm - 8:41 pm
STL
-
IND
23h 19m
2 stops
Multiple Airlines Logo
12:38 pm - 6:51 am
IND
-
STL
19h 13m
1 stop
$291Multiple Airlines
Wed, Mar 18 - Fri, Mar 27
Delta Logo
7:03 am - 12:39 pm
STL
-
IND
4h 36m
1 stop
Delta Logo
7:59 pm - 11:15 pm
IND
-
STL
4h 16m
1 stop
$298Delta
Tue, Feb 24 - Wed, Feb 25
United Airlines Logo
9:55 am - 2:58 pm
STL
-
IND
4h 03m
1 stop
United Airlines Logo
6:10 pm - 9:05 pm
IND
-
STL
3h 55m
1 stop
$315United Airlines
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 seasonJanuary
Cheapest flight$99
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 21% 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 $99 for a one-way ticket and $172 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 11155 reviews
7.2Comfort
7.5Boarding
6.4Food
8.0Crew
6.9Entertainment
Airline reviews

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

8.0 ExcellentAnonymous, Jan 2026
STL - BOS
Read more American Airlines reviews

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.

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 Indianapolis

Information on your arrival and departure airports

St. Louis (STL)
Indianapolis (IND)