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Cheap flights from St. Louis to Indianapolis from $110

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
6:20 pm - 11:00 amSTL  Lambert-St Louis-IND Indianapolis
15h 40m1 stop Orlando
Frontier Logo
11:04 am - 12:12 amIND  Indianapolis-STL Lambert-St Louis
14h 08m1 stop Orlando
$288Frontier
Thu, Dec 10 - Sun, Dec 13
Southwest Logo
6:35 am - 12:05 pmSTL  Lambert-St Louis-IND Indianapolis
4h 30m1 stop Baltimore/Washington
Southwest Logo
11:25 am - 4:20 pmIND  Indianapolis-STL Lambert-St Louis
5h 55m1 stop Austin Bergstrom
$310Southwest
Thu, Dec 3 - Sat, Dec 5
Southwest Logo
6:20 am - 12:20 pmSTL  Lambert-St Louis-IND Indianapolis
5h 00m1 stop Chicago Midway
Southwest Logo
6:40 am - 12:40 pmIND  Indianapolis-STL Lambert-St Louis
7h 00m2 stops Chicago Midway Nashville Intl
$315Southwest
Thu, Dec 3 - Sat, Dec 5
Frontier Logo
9:09 am - 9:35 pmSTL  Lambert-St Louis-IND Indianapolis
11h 26m1 stop Dallas/Fort Worth
Frontier Logo
6:15 pm - 11:59 pmIND  Indianapolis-STL Lambert-St Louis
6h 44m1 stop Orlando
$330Frontier
Sun, Nov 22 - Thu, Nov 26
American Airlines Logo
1:43 pm - 8:19 pmSTL  Lambert-St Louis-IND Indianapolis
5h 36m1 stop Chicago O'Hare Intl
American Airlines Logo
9:04 pm - 12:02 amIND  Indianapolis-STL Lambert-St Louis
3h 58m1 stop Chicago O'Hare Intl
$346American Airlines
Sat, Dec 5 - Sun, Dec 6
Frontier Logo
9:09 am - 9:35 pmSTL  Lambert-St Louis-IND Indianapolis
11h 26m1 stop Dallas/Fort Worth
Frontier Logo
6:15 pm - 11:59 pmIND  Indianapolis-STL Lambert-St Louis
6h 44m1 stop Orlando
$350Frontier
Sun, Nov 22 - Thu, Nov 26
Southwest Logo
8:25 am - 3:45 pmSTL  Lambert-St Louis-IND Indianapolis
6h 20m2 stops Dallas Love Field Kansas City
Southwest Logo
6:40 am - 12:40 pmIND  Indianapolis-STL Lambert-St Louis
7h 00m2 stops Chicago Midway Nashville Intl
$355Southwest
Thu, Dec 3 - Sat, Dec 5
United Airlines Logo
3:25 pm - 10:14 pmSTL  Lambert-St Louis-IND Indianapolis
5h 49m1 stop Chicago O'Hare Intl
United Airlines Logo
1:40 pm - 4:36 pmIND  Indianapolis-STL Lambert-St Louis
3h 56m1 stop Chicago O'Hare Intl
$363United Airlines
Sat, Dec 12 - Tue, Dec 15
United Airlines Logo
3:25 pm - 10:14 pmSTL  Lambert-St Louis-IND Indianapolis
5h 49m1 stop Chicago O'Hare Intl
United Airlines Logo
1:40 pm - 4:36 pmIND  Indianapolis-STL Lambert-St Louis
3h 56m1 stop Chicago O'Hare Intl
$385United Airlines
Sat, Dec 12 - Tue, Dec 15
United Airlines Logo
5:00 am - 9:48 amSTL  Lambert-St Louis-IND Indianapolis
3h 48m1 stop Chicago O'Hare Intl
United Airlines Logo
12:46 pm - 3:43 pmIND  Indianapolis-STL Lambert-St Louis
3h 57m1 stop Chicago O'Hare Intl
$414United Airlines
Sun, Nov 29 - Mon, Nov 30

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United Airlines flights from St. Louis to Indianapolis

Our best United Airlines deals on St. Louis to Indianapolis flight tickets
United Airlines
Dec 12
STL3:25 pmLambert-St Louis
5h 49m
1 stop
IND10:14 pmIndianapolis
Dec 15
IND1:40 pmIndianapolis
3h 56m
1 stop
STL4:36 pmLambert-St Louis
$363
United Airlines
Dec 12
STL3:25 pmLambert-St Louis
5h 49m
1 stop
IND10:14 pmIndianapolis
Dec 15
IND1:40 pmIndianapolis
3h 56m
1 stop
STL4:36 pmLambert-St Louis
$385
United Airlines
Dec 8
STL1:18 pmLambert-St Louis
4h 12m
1 stop
IND6:30 pmIndianapolis
Dec 15
IND9:00 amIndianapolis
6h 41m
1 stop
STL2:41 pmLambert-St Louis
$395

Frontier flights from St. Louis to Indianapolis

Our best Frontier deals on St. Louis to Indianapolis flight tickets
Frontier
Dec 8
STL6:20 pmLambert-St Louis
14h 49m
1 stop
IND10:09 amIndianapolis
Dec 15
IND4:41 pmIndianapolis
19h 23m
1 stop
STL11:04 amLambert-St Louis
$220
Frontier
Dec 10
STL6:20 pmLambert-St Louis
15h 40m
1 stop
IND11:00 amIndianapolis
Dec 13
IND11:04 amIndianapolis
14h 08m
1 stop
STL12:12 amLambert-St Louis
$288
Frontier
Dec 8
STL6:20 pmLambert-St Louis
19h 50m
2 stops
IND3:10 pmIndianapolis
Dec 15
IND7:19 pmIndianapolis
16h 58m
1 stop
STL11:17 amLambert-St Louis
$307

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

Thu 12/10

6:20 pm-11:00 am

1 stop15h 40m

Indianapolis

Sun 12/13

11:04 am-12:12 am

1 stop14h 08m

$288

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Thu 12/3

6:35 am-12:05 pm

1 stop4h 30m

Indianapolis

Sat 12/5

11:25 am-4:20 pm

1 stop5h 55m

$310

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Thu 12/3

6:20 am-12:20 pm

1 stop5h 00m

Indianapolis

Sat 12/5

6:40 am-12:40 pm

2 stops7h 00m

$315

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Sun 11/22

9:09 am-9:35 pm

1 stop11h 26m

Indianapolis

Thu 11/26

6:15 pm-11:59 pm

1 stop6h 44m

$330

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Sat 12/5

1:43 pm-8:19 pm

1 stop5h 36m

Indianapolis

Sun 12/6

9:04 pm-12:02 am

1 stop3h 58m

$346

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Sun 11/22

9:09 am-9:35 pm

1 stop11h 26m

Indianapolis

Thu 11/26

6:15 pm-11:59 pm

1 stop6h 44m

$350

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Thu 12/3

8:25 am-3:45 pm

2 stops6h 20m

Indianapolis

Sat 12/5

6:40 am-12:40 pm

2 stops7h 00m

$355

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Sat 12/12

3:25 pm-10:14 pm

1 stop5h 49m

Indianapolis

Tue 12/15

1:40 pm-4:36 pm

1 stop3h 56m

$363

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Sat 12/12

3:25 pm-10:14 pm

1 stop5h 49m

Indianapolis

Tue 12/15

1:40 pm-4:36 pm

1 stop3h 56m

$385
Quickest round-trip

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Sun 11/29

5:00 am-9:48 am

1 stop3h 48m

Indianapolis

Mon 11/30

12:46 pm-3:43 pm

1 stop3h 57m

$414

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, May 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 May, then departing from St. Louis during the month July is also very affordable. Most momondo users find prices during this month for around $346.

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 November 2026, prices for St. Louis to Indianapolis flights are approximately 11% 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

$110

Fastest flight time

3h 40m

Direct flights

None
The best one-way flight to Indianapolis from St. Louis in the past 72 hours is $110. The best round-trip flight deal from St. Louis to Indianapolis found on momondo in the last 72 hours is $288.
The fastest flight from St. Louis to Indianapolis takes 3h 40m
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 3h 40m, 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
SouthwestPriceFrom $243Free CancellationRating
8.0
4,219 reviews
Search Southwest flights
United AirlinesPriceFrom $268Free CancellationRating
7.3
10,471 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
Greenwood
Anderson
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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