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Cheap flights from St. Louis to Indianapolis from $92

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Indianapolis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:44 pm - 3:08 pmSTL  Lambert-St Louis-IND Indianapolis
19h 24m2 stops Atlanta Hartsfield-Jackson Denver Intl
Frontier Logo
7:52 pm - 11:19 amIND  Indianapolis-STL Lambert-St Louis
16h 27m2 stops Atlanta Hartsfield-Jackson Dallas/Fort Worth
$208Frontier
Mon, Nov 2 - Wed, Nov 4
Frontier Logo
12:14 pm - 7:53 pmSTL  Lambert-St Louis-IND Indianapolis
6h 39m1 stop Dallas/Fort Worth
Frontier Logo
11:25 am - 11:16 pmIND  Indianapolis-STL Lambert-St Louis
12h 51m1 stop Orlando
$215Frontier
Thu, Nov 12 - Mon, Nov 16
Southwest Logo
5:45 am - 12:00 pmSTL  Lambert-St Louis-IND Indianapolis
5h 15m1 stop Chicago Midway
Southwest Logo
7:05 am - 1:50 pmIND  Indianapolis-STL Lambert-St Louis
7h 45m1 stop Dallas Love Field
$273Southwest
Mon, Nov 2 - Wed, Nov 4
Southwest Logo
6:35 am - 12:05 pmSTL  Lambert-St Louis-IND Indianapolis
4h 30m1 stop Baltimore/Washington
Southwest Logo
1:40 pm - 8:00 pmIND  Indianapolis-STL Lambert-St Louis
7h 20m1 stop Dallas Love Field
$273Southwest
Wed, Dec 9 - Sat, Dec 12
American Airlines Logo
8:15 pm - 12:38 amSTL  Lambert-St Louis-IND Indianapolis
3h 23m1 stop Chicago O'Hare Intl
American Airlines Logo
6:39 am - 12:50 pmIND  Indianapolis-STL Lambert-St Louis
7h 11m1 stop Chicago O'Hare Intl
$273American Airlines
Tue, Nov 10 - Tue, Nov 17
Southwest Logo
8:30 am - 3:45 pmSTL  Lambert-St Louis-IND Indianapolis
6h 15m1 stop Kansas City
Southwest Logo
12:55 pm - 7:30 pmIND  Indianapolis-STL Lambert-St Louis
7h 35m1 stop Tampa
$273Southwest
Thu, Dec 3 - Fri, Dec 4
Southwest Logo
1:40 pm - 10:25 pmSTL  Lambert-St Louis-IND Indianapolis
7h 45m1 stop Austin Bergstrom
Southwest Logo
9:40 am - 1:45 pmIND  Indianapolis-STL Lambert-St Louis
5h 05m1 stop Atlanta Hartsfield-Jackson
$273Southwest
Tue, Nov 17 - Thu, Nov 19
Frontier Logo
6:05 pm - 7:45 amSTL  Lambert-St Louis-IND Indianapolis
12h 40m1 stop Orlando
Frontier Logo
9:40 pm - 7:09 amIND  Indianapolis-STL Lambert-St Louis
10h 29m1 stop Atlanta Hartsfield-Jackson
$277Frontier
Thu, Dec 17 - Sun, Dec 20
United Airlines Logo
5:00 am - 9:48 amSTL  Lambert-St Louis-IND Indianapolis
3h 48m1 stop Chicago O'Hare Intl
United Airlines Logo
6:00 am - 8:55 amIND  Indianapolis-STL Lambert-St Louis
3h 55m1 stop Chicago O'Hare Intl
$301United Airlines
Fri, Nov 6 - Sun, Nov 8
United Airlines Logo
8:05 am - 1:05 pmSTL  Lambert-St Louis-IND Indianapolis
4h 00m1 stop Chicago O'Hare Intl
United Airlines Logo
7:00 am - 12:26 pmIND  Indianapolis-STL Lambert-St Louis
6h 26m1 stop Chicago O'Hare Intl
$309United Airlines
Tue, Dec 22 - Fri, Dec 25

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Frontier flights from St. Louis to Indianapolis

Our best Frontier deals on St. Louis to Indianapolis flight tickets
Frontier
Nov 2
STL6:44 pmLambert-St Louis
19h 24m
2 stops
IND3:08 pmIndianapolis
Nov 4
IND7:52 pmIndianapolis
16h 27m
2 stops
STL11:19 amLambert-St Louis
$208
Frontier
Nov 12
STL12:14 pmLambert-St Louis
6h 39m
1 stop
IND7:53 pmIndianapolis
Nov 16
IND11:25 amIndianapolis
12h 51m
1 stop
STL11:16 pmLambert-St Louis
$215
Frontier
Dec 17
STL6:05 pmLambert-St Louis
12h 40m
1 stop
IND7:45 amIndianapolis
Dec 20
IND9:40 pmIndianapolis
10h 29m
1 stop
STL7:09 amLambert-St Louis
$277

Southwest flights from St. Louis to Indianapolis

Our best Southwest deals on St. Louis to Indianapolis flight tickets
Southwest
Nov 2
STL5:45 amLambert-St Louis
5h 15m
1 stop
IND12:00 pmIndianapolis
Nov 4
IND7:05 amIndianapolis
7h 45m
1 stop
STL1:50 pmLambert-St Louis
$273
Southwest
Nov 2
STL4:40 pmLambert-St Louis
6h 35m
2 stops
IND12:15 amIndianapolis
Nov 4
IND5:25 pmIndianapolis
5h 35m
1 stop
STL10:00 pmLambert-St Louis
$278
Southwest
Nov 10
STL5:30 amLambert-St Louis
9h 15m
2 stops
IND3:45 pmIndianapolis
Nov 17
IND2:10 pmIndianapolis
6h 15m
2 stops
STL7:25 pmLambert-St Louis
$283

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Indianapolis that are best for you.

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Price

Cheapest round-trip

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Mon 11/2

6:44 pm-3:08 pm

2 stops19h 24m

Indianapolis

Wed 11/4

7:52 pm-11:19 am

2 stops16h 27m

$208

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Thu 11/12

12:14 pm-7:53 pm

1 stop6h 39m

Indianapolis

Mon 11/16

11:25 am-11:16 pm

1 stop12h 51m

$215

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Mon 11/2

5:45 am-12:00 pm

1 stop5h 15m

Indianapolis

Wed 11/4

7:05 am-1:50 pm

1 stop7h 45m

$273

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Wed 12/9

6:35 am-12:05 pm

1 stop4h 30m

Indianapolis

Sat 12/12

1:40 pm-8:00 pm

1 stop7h 20m

$273

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Tue 11/10

8:15 pm-12:38 am

1 stop3h 23m

Indianapolis

Tue 11/17

6:39 am-12:50 pm

1 stop7h 11m

$273

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Thu 12/3

8:30 am-3:45 pm

1 stop6h 15m

Indianapolis

Fri 12/4

12:55 pm-7:30 pm

1 stop7h 35m

$273

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Tue 11/17

1:40 pm-10:25 pm

1 stop7h 45m

Indianapolis

Thu 11/19

9:40 am-1:45 pm

1 stop5h 05m

$273

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Thu 12/17

6:05 pm-7:45 am

1 stop12h 40m

Indianapolis

Sun 12/20

9:40 pm-7:09 am

1 stop10h 29m

$277
Quickest round-trip

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Fri 11/6

5:00 am-9:48 am

1 stop3h 48m

Indianapolis

Sun 11/8

6:00 am-8:55 am

1 stop3h 55m

$301

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Tue 12/22

8:05 am-1:05 pm

1 stop4h 00m

Indianapolis

Fri 12/25

7:00 am-12:26 pm

1 stop6h 26m

$309

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, December 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 $0. If you are unable to visit Indianapolis during the month of December, then departing from St. Louis during the month May is also very affordable. Most momondo users find prices during this month for around $0.

What is the cheapest Lambert-St Louis to Indianapolis flight route?

Fly from Lambert-St Louis to Indianapolis for the best Lambert-St Louis - Indianapolis flight prices

What cabin class options are available on St. Louis to Indianapolis flights?

There is only 1 cabin class available to choose from on St. Louis to Indianapolis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of October 2026, prices for St. Louis to Indianapolis flights are approximately 141% more expensive 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

$92

Fastest flight time

4h 02m

Direct flights

None
The best one-way flight to Indianapolis from St. Louis in the past 72 hours is $92. The best round-trip flight deal from St. Louis to Indianapolis found on momondo in the last 72 hours is $208.
The fastest flight from St. Louis to Indianapolis takes 4h 02m
There are no direct flights from St. Louis to Indianapolis. There are no popular flight routes from St. Louis to Indianapolis.
Search flight deals

Frequently asked questions about flying from St. Louis to Indianapolis

  • 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 4h 02m, 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 plane model from St. Louis to Indianapolis?

  • 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
United AirlinesPriceFrom $268Free CancellationRating
7.4
10,366 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
Muncie
Anderson
Greenwood
Plainfield
Noblesville
Carmel
Fishers
West Lafayette
Speedway
Franklin
Westfield
Shelbyville
Crawfordsville
Brownsburg
Seymour
Greenfield
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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