IND - STL

$102 Find Cheap Flights from Indianapolis to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Indianapolis to St. Louis departing on 2/13. 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 St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Indianapolis to St. Louis, 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 Indianapolis to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$214
Overall average: $301
Frontier
Sun 2/1Wed 2/4
IND - STL • 1 stop
Cheapest one-way
$102
Typical prices: $196-$271
Frontier
Fri 2/13
IND - STL • 1 stop
When to travel
November
Cheapest • 31% price drop
January
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 St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Indianapolis to St. Louis (IND-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Indianapolis to St. Louis 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 Indianapolis to St. Louis

Sun, Feb 1 - Wed, Feb 4
Frontier Logo
9:34 pm - 9:21 am
IND
-
STL
12h 47m1 stop
Frontier Logo
3:46 pm - 3:35 pm
STL
-
IND
22h 49m1 stop
$214Frontier
Thu, Jan 15 - Tue, Jan 20
Multiple Airlines Logo
4:04 pm - 7:54 am
IND
-
STL
16h 50m2 stops
Multiple Airlines Logo
5:42 pm - 6:23 pm
STL
-
IND
23h 41m1 stop
$217Multiple Airlines
Thu, Jan 15 - Tue, Jan 20
Multiple Airlines Logo
4:04 pm - 6:51 am
IND
-
STL
15h 47m1 stop
Multiple Airlines Logo
5:42 pm - 6:23 pm
STL
-
IND
23h 41m1 stop
$232Multiple Airlines
Sun, Feb 1 - Wed, Feb 4
Multiple Airlines Logo
9:34 pm - 9:21 am
IND
-
STL
12h 47m1 stop
Multiple Airlines Logo
8:22 pm - 7:31 pm
STL
-
IND
22h 09m2 stops
$237Multiple Airlines
Fri, Feb 20 - Sun, Feb 22
Multiple Airlines Logo
7:41 pm - 6:51 am
IND
-
STL
12h 10m1 stop
Multiple Airlines Logo
3:49 pm - 8:32 am
STL
-
IND
15h 43m1 stop
$284Multiple Airlines
Mon, Mar 9 - Fri, Mar 13
Frontier Logo
7:18 pm - 11:19 pm
IND
-
STL
29h 01m1 stop
Frontier Logo
4:51 pm - 8:39 am
STL
-
IND
14h 48m1 stop
$295Frontier
Sun, Feb 1 - Wed, Feb 4
Southwest Logo
12:40 pm - 10:40 pm
IND
-
STL
11h 00m2 stops
Southwest Logo
11:35 am - 8:10 pm
STL
-
IND
7h 35m2 stops
$303Southwest
Fri, Feb 20 - Sun, Feb 22
Southwest Logo
6:55 am - 9:15 am
IND
-
STL
3h 20m1 stop
Southwest Logo
10:35 am - 10:25 pm
STL
-
IND
10h 50m2 stops
$322Southwest
Fri, Feb 20 - Sun, Feb 22
Southwest Logo
2:00 pm - 8:15 pm
IND
-
STL
7h 15m2 stops
Southwest Logo
10:35 am - 10:25 pm
STL
-
IND
10h 50m2 stops
$327Southwest
Sun, Jan 11 - Thu, Jan 15
Multiple Airlines Logo
10:38 am - 8:05 am
IND
-
STL
22h 27m1 stop
Multiple Airlines Logo
5:11 pm - 5:46 pm
STL
-
IND
23h 35m1 stop
$333Multiple Airlines
Booking Insights

KAYAK's insights & trends for Indianapolis to St. Louis flights

Get data-powered insights and trends into flights from Indianapolis to St. Louis 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 Indianapolis to St. Louis?

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

When flying from Indianapolis to St. Louis, you should consider leaving on a Tuesday and avoid Mondays if you are looking for the best rates. For your return to Indianapolis, you’ll find the best rates on Thursdays and the most expensive ones on Fridays.

What is the cheapest month to fly from Indianapolis to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Indianapolis to St. Louis, 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 Indianapolis to St. Louis is November, where tickets cost $256 (return) on average. On the other hand, the most expensive months are September and July, where the average cost of round-trip tickets is $556 and $474 respectively.

Find deals

Good to know

Low seasonMay
Cheapest flight$102
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Indianapolis to St. Louis

When to book flights from Indianapolis to St. Louis

Are your dates flexible? Find out the best times to travel from Indianapolis to St. Louis 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 Indianapolis to St. Louis

  • What is the cheapest flight from Indianapolis to St. Louis?

    In the last 3 days, the lowest price for a flight from Indianapolis to St. Louis was $102 for a one-way ticket and $214 for a round-trip.

  • Do I need a passport to fly between Indianapolis and St. Louis?

    A passport is not required to fly from Indianapolis to St. Louis.

  • Which aircraft models fly most regularly from Indianapolis to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Indianapolis to St. Louis?

    oneworld is the only airline alliance operating flights between Indianapolis and St. Louis.

  • How does KAYAK find such low prices on flights from Indianapolis to St. Louis?

    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 Indianapolis to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Indianapolis to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Indianapolis 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 Indianapolis to St. Louis?

    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 St. Louis with an airline and back to Indianapolis with another airline. Booking your flights between Indianapolis and STL 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 Indianapolis to St. Louis?

    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 St. Louis from Indianapolis 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 Indianapolis to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Indianapolis to St. Louis. 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 Indianapolis to St. Louis? 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 11072 reviews
8.0Crew
7.5Boarding
7.2Comfort
6.9Entertainment
6.5Food
Airline reviews

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

2.0 MediocreElora, Dec 2025
MIA - LAS
Read more American Airlines reviews

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

WiFi didn’t work the entire flight. Very disappointing. Minimal food and options - sadly the state of current affairs. All other aspects of the flight were fine.

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

For whatever reason, the flight was not catered -we were told it would be a 45 minute delay waiting for catering - so no food. There were opened candy and peanuts in the seatback pocket. Flight landed early in DFW but due to the assigned gate not being available, we sat on the ground for 30 minutes waiting for the gate to open - making the flight actually arrive at the gate late.

The pilot greased the landing and the crew was fantastic.

I bought wifi and most of the flight could not even use it my apps would just spin. I couldn't even listen to music. super frustrating.

delayed due to weather. Could not communicate with family since the wifi was broken

Everything you need to know for your flight from Indianapolis to St. Louis

Information on your arrival and departure airports

Indianapolis (IND)
St. Louis (STL)