STL - IND

$121 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 12/5. 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
$145
Overall average: $276
Frontier
lun. 12/15vie. 1/9
STL - IND • 1 stop
Cheapest one-way
$121
Typical prices: $188-$250
Multiple Airlines
vie. 12/5
STL - IND • 1 stop
Top airlines
Frontier
Cheapest • from $145 (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

lun., dic. 15 - vie., ene. 9
Frontier Logo
10:47 am - 6:50 pmSTL-IND
7h 03m1 stop
Frontier Logo
8:55 pm - 10:02 amIND-STL
14h 07m1 stop
$145Frontier
Find Deal
lun., dic. 15 - vie., ene. 9
Multiple Airlines Logo
10:47 am - 7:43 amSTL-IND
19h 56m2 stops
Multiple Airlines Logo
8:55 pm - 10:02 amIND-STL
14h 07m1 stop
$179Multiple Airlines
Find Deal
lun., dic. 15 - jue., dic. 18
Multiple Airlines Logo
10:47 am - 6:50 pmSTL-IND
7h 03m1 stop
Multiple Airlines Logo
11:40 am - 10:33 pmIND-STL
11h 53m1 stop
$244Multiple Airlines
Find Deal
mié., nov. 26 - dom., nov. 30
Multiple Airlines Logo
4:13 pm - 8:08 amSTL-IND
14h 55m1 stop
Multiple Airlines Logo
11:44 am - 11:57 pmIND-STL
37h 13m2 stops
$246Multiple Airlines
Find Deal
mar., ene. 27 - mié., feb. 4
Delta Logo
7:10 am - 1:23 pmSTL-IND
5h 13m1 stop
Delta Logo
12:10 pm - 4:39 pmIND-STL
5h 29m1 stop
$257Delta
Find Deal
dom., dic. 7 - dom., dic. 14
Multiple Airlines Logo
10:42 am - 7:43 amSTL-IND
44h 01m2 stops
Multiple Airlines Logo
5:30 am - 8:59 amIND-STL
28h 29m1 stop
$259Multiple Airlines
Find Deal
mié., nov. 26 - dom., nov. 30
Multiple Airlines Logo
4:13 pm - 8:08 amSTL-IND
14h 55m1 stop
Multiple Airlines Logo
11:44 am - 11:57 pmIND-STL
37h 13m2 stops
$264Multiple Airlines
Find Deal
jue., ene. 29 - sáb., ene. 31
Delta Logo
3:31 pm - 11:06 pmSTL-IND
6h 35m1 stop
Delta Logo
7:05 am - 10:43 amIND-STL
4h 38m1 stop
$268Delta
Find Deal
dom., dic. 7 - dom., dic. 14
Multiple Airlines Logo
2:47 pm - 10:58 amSTL-IND
19h 11m1 stop
Multiple Airlines Logo
5:30 am - 8:59 amIND-STL
28h 29m1 stop
$273Multiple Airlines
Find Deal
lun., dic. 15 - jue., dic. 18
Frontier Logo
10:47 am - 6:50 pmSTL-IND
7h 03m1 stop
Frontier Logo
8:48 pm - 8:12 amIND-STL
12h 24m2 stops
$274Frontier
Find Deal
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 $627 respectively.

Find deals

Good to know

Low seasonAugust
Cheapest flight$121
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 20% 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 $121 for a one-way ticket and $145 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 11051 reviews
7.5Boarding
8.0Crew
6.4Food
7.2Comfort
6.9Entertainment
Airline reviews

More choices on snacks. Built-in video screen to enjoy entertainment choices.

8.0 ExcellentJim, Nov 2025PHX - OGG
Read more American Airlines reviews

More choices on snacks. Built-in video screen to enjoy entertainment choices.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

I have a gluten allergy so didn't have any food

Loved the crew . Absolutely no complaints. Except for luggage lost

Everything was good The connects, with no blame to crew. Or pilots. I understand they are short staffed. Everything went well for me. I'll be using you guys again in May if not sooner.

this plane was really old, had exit row seats and tray was in arm of seat so super uncomfortable to use. another seat they could t even use the tray it was broke. seat i. front of me had duct tape on it cause seat was ripped open... this plane should either be updated or retired.

Baggage handling poor. Second time this has happened. My bag went to San Francisco instead of Fiji. No apology. Luckily Nadi airport staff are fantastic. My bag arrived in Fiji the next day.

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

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)