STL - IND

$70 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 4/24. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$162
Typical prices: $226-$311
Frontier
Wed 4/15Sun 4/19
STL - IND • 1 stop
Cheapest non-stop
$545
Southwest
Fri 4/3Sun 4/5
STL - IND • Non-stop
Nonstop flights
4 days a week
Tue, Thu, Fri, Sun
You can fly direct with Southwest. Average duration is 0h 55m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top airlines
Frontier
Cheapest • from $162 (round-trip)
American Airlines
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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
Start a new search
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 15 - Sun, Apr 19
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
$162Frontier
Wed, May 13 - Fri, May 15
Frontier Logo
8:13 pm - 11:17 am
STL
-
IND
14h 04m
1 stop
Frontier Logo
12:12 pm - 6:50 am
IND
-
STL
19h 38m
1 stop
$181Frontier
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
11:25 am - 10:32 am
STL
-
IND
22h 07m
1 stop
Frontier Logo
12:12 pm - 6:50 am
IND
-
STL
19h 38m
1 stop
$199Frontier
Wed, Apr 15 - Sun, Apr 19
Frontier Logo
8:23 pm - 11:32 am
STL
-
IND
14h 09m
1 stop
Frontier Logo
6:01 pm - 6:50 am
IND
-
STL
13h 49m
2 stops
$219Frontier
Thu, Apr 23 - Thu, Apr 30
Frontier Logo
11:25 am - 10:32 am
STL
-
IND
22h 07m
1 stop
Frontier Logo
12:17 pm - 6:50 am
IND
-
STL
19h 33m
1 stop
$236Frontier
Tue, Apr 14 - Sun, Apr 19
Frontier Logo
4:59 pm - 11:11 am
STL
-
IND
17h 12m
1 stop
Frontier Logo
12:12 pm - 6:50 am
IND
-
STL
19h 38m
1 stop
$237Frontier
Fri, Apr 24 - Fri, May 1
Frontier Logo
4:59 pm - 9:49 am
STL
-
IND
15h 50m
1 stop
Frontier Logo
8:46 pm - 7:32 pm
IND
-
STL
23h 46m
1 stop
$245Frontier
Sat, Apr 25 - Sat, May 2
Frontier Logo
4:59 pm - 7:38 am
STL
-
IND
13h 39m
1 stop
Frontier Logo
10:44 am - 11:19 pm
IND
-
STL
13h 35m
1 stop
$247Frontier
Sat, Apr 25 - Sat, May 2
Frontier Logo
4:16 pm - 2:27 pm
STL
-
IND
21h 11m
1 stop
Frontier Logo
10:44 am - 11:19 pm
IND
-
STL
13h 35m
1 stop
$248Frontier
Thu, Apr 9 - Sun, Apr 12
Frontier Logo
6:29 pm - 11:23 am
STL
-
IND
15h 54m
1 stop
Frontier Logo
7:09 pm - 7:51 am
IND
-
STL
13h 42m
1 stop
$250Frontier
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$80
Best time to beat the crowds but there is an average 58% increase in price.
Most popular time to fly with an average 26% 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

  • How many flights are there between St. Louis and Indianapolis per day?

    There is a maximum of 1 nonstop flight a day that takes off from St. Louis and lands in Indianapolis, with an average flight time of 0h 55m. The most common departure time is 9:00 am and most flights take off in the afternoon. Each week, there are 4 flights.

  • 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 $70 for a one-way ticket and $162 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.

  • On which days can I fly direct from St. Louis to Indianapolis?

    You can catch a nonstop flight from St. Louis to Indianapolis on on Tuesday, Thursday, Friday, and Sunday.

  • 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.

Prefer to fly direct from St. Louis to Indianapolis?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Lambert-St Louis to Indianapolis.
Find which airlines fly direct from Lambert-St Louis Airport to Indianapolis Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Indianapolis

Tuesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Indianapolis to Lambert-St Louis

Tuesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

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 11435 reviews
6.4Food
6.9Entertainment
7.2Comfort
8.0Crew
7.5Boarding
Airline reviews

The gate got changed several times and the flight was delayed over an hour. Awful experience

2.0 MediocreGenesis, Mar 2026
ORD - SDF
Read more American Airlines reviews

The gate got changed several times and the flight was delayed over an hour. Awful experience

Poor communication ahead of time about flight delays and old planes/other equipment.

The flight was delayed multiple times. I was autobooted and placed in the center seat in the last row of the plane.

My flight was delayed. We left at midnight. I got to Greensboro (GSO) at 1am. All of AA's flights in/out of Charlotte always seem to be delayed or canceled. It took me all day on Sunday to get to my destination of Cincinnati from Greensboro. I had to be rerouted through Chicago because my original flight was canceled as the door to plane was closing in GSO. The saddest part is I could have driven and arrived sooner. . . I recognize there is a lot going on that impacts travel. This week it was weather. Yesterday in Cincinnati it was President Trump. But as a frequent flyer, the flight from South Bend to Charlotte always runs late. The subsequent flight to Greensboro is always midnight to 2am. . . I do want to give props the Charlotte boarding crew. They had four flights going out of the same area at the same time. They turned it quickly and mitigated the grumbling from the crowd.

Never going to fly your airline again if it can be avoided.

Dloght delayed by 2.5 hrs . Common theme in my last four american floghts

American continues to decline in their customer service and its beyond disappointing.

Mechanical issue delayed us 2hrs and then once we landed sat on tarmac for 30mins because someone left a vehicle in front of the gaye

The crew was excellent and overall the flight was good. No complaints.

I didn't end up taking this flight. I got up at 4am for a flight that was supposed to board at 6am - at 5:55am you delayed the flight to 10am. The airport is under construction so I switched to a later flight as I wasn't going to sit in the airport for 4 hours. They said the delay was due to the crew needing rest from a flight coming in late the night before - if that was the case then I think you should have delayed the flight much sooner so that passengers wouldn't get up so early and get to the airport to sit and wait.

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)