STL - IND

$85 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 12/3. 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
$257
Overall average: $277
Delta
Sat 2/28Tue 3/3
STL - IND • 1 stop
Cheapest one-way
$85
Typical prices: $188-$250
Frontier
Wed 12/3
STL - IND • 1 stop
Top airlines
Delta
Cheapest • from $257 (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 • 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

Sat, Feb 28 - Tue, Mar 3
Delta Logo
6:10 am - 11:47 amSTL-IND
4h 37m1 stop
Delta Logo
6:15 am - 9:38 amIND-STL
4h 23m1 stop
$257Delta
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Sat, Nov 15 - Wed, Nov 19
Multiple Airlines Logo
4:33 pm - 8:44 amSTL-IND
15h 11m1 stop
Multiple Airlines Logo
5:05 am - 2:29 pmIND-STL
34h 24m2 stops
$267Multiple Airlines
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Tue, Dec 2 - Tue, Dec 9
Multiple Airlines Logo
3:30 pm - 8:08 amSTL-IND
15h 38m1 stop
Multiple Airlines Logo
8:48 am - 10:33 pmIND-STL
14h 45m2 stops
$273Multiple Airlines
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Sat, Nov 15 - Wed, Nov 19
Multiple Airlines Logo
4:33 pm - 8:44 amSTL-IND
15h 11m1 stop
Multiple Airlines Logo
8:59 pm - 11:57 pmIND-STL
27h 58m1 stop
$293Multiple Airlines
Find Deal
Sun, Nov 16 - Sun, Nov 23
Frontier Logo
7:45 pm - 2:09 pmSTL-IND
17h 24m2 stops
Frontier Logo
7:52 pm - 10:02 amIND-STL
15h 10m1 stop
$315Frontier
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Sun, Nov 30 - Sun, Dec 7
Frontier Logo
3:14 pm - 10:28 amSTL-IND
18h 14m1 stop
Frontier Logo
10:48 am - 8:59 amIND-STL
23h 11m1 stop
$317Frontier
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Sun, Nov 30 - Sun, Dec 7
Multiple Airlines Logo
7:03 pm - 8:08 amSTL-IND
36h 05m2 stops
Multiple Airlines Logo
10:48 am - 8:59 amIND-STL
23h 11m1 stop
$318Multiple Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Southwest Logo
10:15 am - 5:45 pmSTL-IND
6h 30m2 stops
Southwest Logo
7:50 am - 2:40 pmIND-STL
7h 50m2 stops
$358Southwest
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Thu, Nov 27 - Sat, Nov 29
United Airlines Logo
1:10 pm - 1:12 pmSTL-IND
23h 02m2 stops
United Airlines Logo
12:38 pm - 3:46 pmIND-STL
4h 08m1 stop
$489United Airlines
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Thu, Nov 27 - Sat, Nov 29
United Airlines Logo
8:00 am - 7:16 pmSTL-IND
10h 16m2 stops
United Airlines Logo
7:15 am - 12:28 pmIND-STL
6h 13m1 stop
$520United Airlines
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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’s the cheapest day of the week to fly from St. Louis to Indianapolis?

The average price of all round-trip flights from St. Louis to Indianapolis clicked on KAYAK for each day over the last 12 months.

For St. Louis to Indianapolis, Thursday is the cheapest day to fly on average and Friday is the most expensive. Flying from Indianapolis back to St. Louis, the best deals are generally found on Tuesday, with Monday being the most expensive.

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 March and November, where the average cost of round-trip tickets is $647 and $557 respectively.

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Good to know

Low seasonAugust
Cheapest flight$85
Best time to beat the crowds with an average 37% 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 $85 for a one-way ticket and $257 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 11038 reviews
7.5Boarding
7.2Comfort
6.4Food
6.9Entertainment
8.0Crew
Airline reviews

We loved the steward on the plane. He made the night enjoyable

10.0 Excellentchloe, Nov 2025ORD - ATW
Read more American Airlines reviews

We loved the steward on the plane. He made the night enjoyable

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

Did not get any refreshments. Crew was very nice but limited. Small seats

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

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)

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