STL - IND

$84 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 7/9. 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
$170
Typical prices: $325-$406
Frontier
Tue 7/14Fri 7/17
STL - IND • 1 stop
Cheapest one-way
$84
Typical prices: $148-$188
Frontier
Thu 7/9
STL - IND • 1 stop
Top airlines
Frontier
Cheapest • from $170 (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
Atlanta (ATL)
Cheapest • Avg $235 (round-trip)
Detroit (DTW)
Shortest trip • 3h 26m (one-way)
Insights
Insights
Insights
Insights
When to travel
May
Cheapest • 100% price drop
July
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

Tue, Jul 14 - Fri, Jul 17
Frontier Logo
6:34 pm - 11:25 am
STL
-
IND
15h 51m
1 stop
Frontier Logo
12:20 pm - 8:57 am
IND
-
STL
21h 37m
1 stop
$170Frontier
Thu, Aug 20 - Mon, Aug 24
Frontier Logo
6:17 pm - 5:26 pm
STL
-
IND
22h 09m
1 stop
Frontier Logo
12:14 pm - 5:22 pm
IND
-
STL
6h 08m
1 stop
$177Frontier
Tue, Aug 4 - Thu, Aug 13
Multiple Airlines Logo
6:34 pm - 11:25 am
STL
-
IND
15h 51m
1 stop
Multiple Airlines Logo
8:00 am - 8:57 am
IND
-
STL
25h 57m
2 stops
$220Multiple Airlines
Thu, Aug 6 - Thu, Aug 13
Multiple Airlines Logo
6:34 pm - 11:25 am
STL
-
IND
15h 51m
1 stop
Multiple Airlines Logo
8:00 am - 8:57 am
IND
-
STL
25h 57m
2 stops
$221Multiple Airlines
Tue, Aug 4 - Sun, Aug 9
Multiple Airlines Logo
6:34 pm - 11:25 am
STL
-
IND
15h 51m
1 stop
Multiple Airlines Logo
8:00 am - 8:57 am
IND
-
STL
25h 57m
2 stops
$222Multiple Airlines
Tue, Aug 4 - Wed, Aug 12
Frontier Logo
6:34 pm - 11:25 am
STL
-
IND
15h 51m
1 stop
Frontier Logo
7:10 pm - 5:37 pm
IND
-
STL
23h 27m
2 stops
$224Frontier
Sun, Aug 23 - Tue, Aug 25
Frontier Logo
6:33 pm - 11:19 am
STL
-
IND
15h 46m
1 stop
Frontier Logo
8:46 pm - 8:52 am
IND
-
STL
13h 06m
2 stops
$238Frontier
Thu, Aug 6 - Mon, Aug 10
Frontier Logo
6:34 pm - 11:25 am
STL
-
IND
15h 51m
1 stop
Frontier Logo
6:32 pm - 5:37 pm
IND
-
STL
24h 05m
2 stops
$239Frontier
Thu, Aug 6 - Tue, Aug 11
Frontier Logo
6:34 pm - 11:25 am
STL
-
IND
15h 51m
1 stop
Frontier Logo
8:53 pm - 8:57 am
IND
-
STL
13h 04m
2 stops
$240Frontier
Thu, Jul 16 - Thu, Jul 23
Frontier Logo
6:34 pm - 11:25 am
STL
-
IND
15h 51m
1 stop
Frontier Logo
7:47 pm - 11:59 pm
IND
-
STL
29h 12m
1 stop
$241Frontier
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 July.

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 May, where tickets cost $0 (return) on average. On the other hand, the most expensive months are March and January, where the average cost of round-trip tickets is $777 and $685 respectively.

Find deals

Good to know

Low seasonAugust
Cheapest flight$84
Best time to beat the crowds with an average 49% drop in price.
Most popular time to fly and prices are also 26% 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 5 days, the lowest price for a flight from St. Louis to Indianapolis was $84 for a one-way ticket and $170 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?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the St. Louis to Indianapolis flight 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 11715 reviews
6.8Entertainment
7.9Crew
7.5Boarding
7.2Comfort
6.4Food
Airline reviews

Flight cancelled. Twice. And no communication. No gate agent. Went past boarding time and had to go and see email from AA. Airport communication was bad

2.0 MediocreAnonymous, Jun 2026
DFW - PSP
Read more American Airlines reviews

Flight cancelled. Twice. And no communication. No gate agent. Went past boarding time and had to go and see email from AA. Airport communication was bad

I love the e fact that the staff communicated swiftly when my flight was delayed and gate number changed

It was awful. The communication between corporate and the crew on the ground left more to be desired. The crew even said that Corporate was waiting on answers because they themselves didn't know. Every hour, there was a new excuse. I also understood that passengers were angry, but the crew should have done a better job at crowd control. There was a racial exchange between passengers that could've been avoided has the crew acted sooner.

Delayed and horrible communication and sat on flight for an hour before taking off

Flight was delayed three times and we had an international connecting flight which we would’ve missed but AA manage to find us a flight that allowed us to catch and we made our international flight. However, due to the flight change, I’m in Amman, Jordan missing all 4 bags. It’s been a nightmare. Been waiting since June 17 and today is June 20th. Still without luggage. Customer service wait times are two hours and I get disconnected while waiting. I’ll update when/if my luggage arrives. Every day is costing money in a hotel in Amman. I can’t continue my trip to Palestine until the luggage arrives. Then, I will be updating my review.

They did not offer coffee on a 7am flight…awful!!

Plane temperature was so hot that everyone on the plane was sweating. Departure gates changed 3 times in the hour before the flight. Internet service was so poor in the terminal that updates weren't always being received.

We had a mechanical delay which made us 90 minutes late (9:30 PM) then land and put into the penalty box because a plane was in our gate? What the hell! We should get priority.Damn American.

Check in for 5am flight at RDU was hampered by American check in counters being seriously understaffed , was told even supervisor called out. Took so long in line for special services check in that we missed our 5am departure even after arriving at 3:30am. Had to be rescheduled to later flight from Charlotte to St Thomas.

Delayed flight due to maintenance and I have had multiple delayed flights due to maintenance in the last month plus

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)

Compare transportation modes for St. Louis to Indianapolis

Transportation modeAverage priceAverage duration
Flights$5842h 45m
Buses$714h 25m