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Cheap flights from St. Louis to Indianapolis from $97

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Indianapolis departing on 11/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

American Airlines Logo
6:05 am - 10:20 amSTL-IND
3h 15m1 stop
American Airlines Logo
6:34 pm - 11:07 pmIND-STL
5h 33m1 stop
$177American Airlines
Find Deal
Mon, Sep 8 - Wed, Sep 10
Southwest Logo
1:10 pm - 10:25 pmSTL-IND
8h 15m2 stops
Southwest Logo
8:00 am - 1:10 pmIND-STL
6h 10m1 stop
$182Southwest
Find Deal
Mon, Sep 8 - Wed, Sep 10
Delta Logo
6:49 pm - 12:08 amSTL-IND
4h 19m1 stop
Delta Logo
6:00 am - 9:57 amIND-STL
4h 57m1 stop
$245Delta
Find Deal
Fri, Aug 15 - Sun, Aug 17
Spirit Airlines Logo
11:24 am - 9:20 amSTL-IND
20h 56m1 stop
Spirit Airlines Logo
6:30 am - 4:31 pmIND-STL
11h 01m1 stop
$260Spirit Airlines
Find Deal
Wed, Jul 23 - Tue, Jul 29
 Logo
6:05 am - 6:06 pmSTL-IND
11h 01m1 stop
 Logo
6:00 am - 2:39 pmIND-STL
9h 39m1 stop
Sun, Jul 20 - Sat, Jul 26
 Logo
10:47 am - 8:50 amSTL-IND
21h 03m2 stops
 Logo
6:00 am - 2:39 pmIND-STL
9h 39m1 stop
Sun, Jul 20 - Sat, Jul 26
Spirit Airlines Logo
11:24 am - 11:08 pmSTL-IND
10h 44m2 stops
Spirit Airlines Logo
6:30 am - 4:31 pmIND-STL
11h 01m1 stop
$286Spirit Airlines
Find Deal
Wed, Jul 23 - Tue, Jul 29
Delta Logo
6:40 am - 1:27 pmSTL-IND
5h 47m1 stop
Delta Logo
1:58 pm - 6:47 pmIND-STL
5h 49m1 stop
$377Delta
Find Deal
Tue, Jul 15 - Sat, Jul 19
United Airlines Logo
8:00 am - 1:07 pmSTL-IND
4h 07m1 stop
United Airlines Logo
6:11 pm - 10:45 pmIND-STL
5h 34m1 stop
$437United Airlines
Find Deal
Tue, Jul 15 - Sat, Jul 19
United Airlines Logo
6:33 am - 11:04 amSTL-IND
3h 31m1 stop
United Airlines Logo
7:30 am - 10:40 amIND-STL
4h 10m1 stop
$448United Airlines
Find Deal
Wed, Jul 16 - Sun, Jul 20

United Airlines flights from St. Louis to Indianapolis

Our best United Airlines deals on St. Louis to Indianapolis flight tickets
United Airlines
Jul 15
STL8:00 amLambert-St Louis
4h 07m
1 stop
IND1:07 pmIndianapolis
Jul 19
IND6:11 pmIndianapolis
5h 34m
1 stop
STL10:45 pmLambert-St Louis
United Airlines
Jul 16
STL6:33 amLambert-St Louis
3h 31m
1 stop
IND11:04 amIndianapolis
Jul 20
IND7:30 amIndianapolis
4h 10m
1 stop
STL10:40 amLambert-St Louis

Southwest flights from St. Louis to Indianapolis

Our best Southwest deals on St. Louis to Indianapolis flight tickets
Southwest
Sep 8
STL1:10 pmLambert-St Louis
8h 15m
2 stops
IND10:25 pmIndianapolis
Sep 10
IND8:00 amIndianapolis
6h 10m
1 stop
STL1:10 pmLambert-St Louis
Southwest
Oct 3
STL3:50 pmLambert-St Louis
7h 15m
2 stops
IND12:05 amIndianapolis
Oct 6
IND7:30 pmIndianapolis
4h 40m
1 stop
STL11:10 pmLambert-St Louis
Southwest
Sep 8
STL2:45 pmLambert-St Louis
7h 35m
2 stops
IND11:20 pmIndianapolis
Sep 10
IND11:20 amIndianapolis
7h 25m
2 stops
STL5:45 pmLambert-St Louis

See travel insights to Indianapolis from

How to get the cheapest flight ticket from St. Louis to Indianapolis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Indianapolis?

In general, April is the cheapest month to fly from St. Louis to Indianapolis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $226. If you are unable to visit Indianapolis during the month of April, then departing from St. Louis during the month December is also very affordable. Most momondo users find prices during this month for around $256.

What is the cheapest day to depart on your flight to Indianapolis?

Our data shows that Thursday is the least expensive day to fly to Indianapolis. Tickets to fly out on this day can be as low as $1,178. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Indianapolis on Friday is $1,331.

What is the cheapest time of day to depart on your flight to Indianapolis?

Flying to Indianapolis from St. Louis at noon is the least expensive time of day to depart. momondo users have found prices as low as $256 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,297 on average. Flights to Indianapolis from St. Louis in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How have St. Louis to Indianapolis flight prices changed over time?

As of July 2025, prices for St. Louis to Indianapolis flights are approximately 2% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Indianapolis

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Indianapolis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Indianapolis (STL to IND) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Indianapolis

Best Price Found

$97

Fastest flight time

3h 15m

Direct flights

None

Airports in Indianapolis

1 airport
The best one-way flight to Indianapolis from St. Louis in the past 72 hours is $97. The best round-trip flight deal from St. Louis to Indianapolis found on momondo in the last 72 hours is $177.
The fastest flight from St. Louis to Indianapolis takes 3h 15m
There are no direct flights from St. Louis to Indianapolis. Popular non-direct route for this connection is Lambert-St Louis Airport - Indianapolis Airport.
There is 1 airport near Indianapolis: Indianapolis (IND)

  • How far is Lambert-St Louis to Indianapolis by plane?

    A flight from Lambert-St Louis to Indianapolis will travel around 230.0 mi. Flights usually cover this in 3h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Indianapolis Airport?

    Prices for flights from Lambert-St Louis Airport to Indianapolis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Indianapolis Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Indianapolis Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Indianapolis Airport.

  • What documentation or ID do you need to fly to Indianapolis Airport?

    The travel and health documents required for your trip to Indianapolis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Indianapolis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Indianapolis?


Best airlines flying from St. Louis to Indianapolis

Compare and see reviews for airlines that fly from St. Louis to Indianapolis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $216Free CancellationRating
8.0
7,983 reviews
Search Delta flights
American AirlinesPriceFrom $226Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $234Free CancellationRating
7.4
8,861 reviews
Search United Airlines flights

Traveling to a place near Indianapolis?

Book flights to Indianapolis if you plan to visit one of these locations
Terre Haute
Bloomington
Kokomo
Anderson
Muncie
Greenwood
Fishers
Noblesville
Plainfield
Carmel
West Lafayette
Seymour
Shelbyville
Franklin
Greenfield
Brownsburg
Speedway
Crawfordsville
Westfield
Mooresville

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Indianapolis?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Indianapolis for you.

Can I find flights from St. Louis to Indianapolis with flexible booking policies on momondo?

Flights from St. Louis to Indianapolis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Indianapolis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Indianapolis from St. Louis.

I’m not ready to book a flight from St. Louis to Indianapolis right now. Can momondo alert me if prices change?

Price alerts on flights to Indianapolis from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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Mon 7/7
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