Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Indianapolis from $54

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.
Multiple Airlines Logo
6:44 pm - 1:02 pmSTL  Lambert-St Louis-IND Indianapolis
17h 18m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
6:00 am - 5:40 pmIND  Indianapolis-STL Lambert-St Louis
12h 40m2 stops Orlando Sanford Intl Atlanta Hartsfield-Jackson
$167Multiple Airlines
Fri, Oct 30 - Mon, Nov 2
Multiple Airlines Logo
6:44 pm - 1:02 pmSTL  Lambert-St Louis-IND Indianapolis
17h 18m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
6:00 am - 11:16 pmIND  Indianapolis-STL Lambert-St Louis
18h 16m1 stop Orlando Sanford Intl
$201Multiple Airlines
Fri, Oct 30 - Mon, Nov 2
Frontier Logo
6:35 pm - 3:13 pmSTL  Lambert-St Louis-IND Indianapolis
19h 38m2 stops Atlanta Hartsfield-Jackson Denver Intl
Frontier Logo
9:06 pm - 5:40 pmIND  Indianapolis-STL Lambert-St Louis
21h 34m2 stops Orlando Atlanta Hartsfield-Jackson
$219Frontier
Wed, Oct 21 - Thu, Oct 22
Frontier Logo
8:00 pm - 3:08 pmSTL  Lambert-St Louis-IND Indianapolis
18h 08m1 stop Denver Intl
Frontier Logo
1:47 pm - 1:33 pmIND  Indianapolis-STL Lambert-St Louis
24h 46m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl
$221Frontier
Mon, Oct 26 - Sat, Oct 31
Frontier Logo
8:00 pm - 3:08 pmSTL  Lambert-St Louis-IND Indianapolis
18h 08m1 stop Denver Intl
Frontier Logo
7:52 pm - 3:23 pmIND  Indianapolis-STL Lambert-St Louis
44h 31m2 stops Atlanta Hartsfield-Jackson Denver Intl
$227Frontier
Mon, Oct 26 - Mon, Nov 2
Frontier Logo
8:00 pm - 3:08 pmSTL  Lambert-St Louis-IND Indianapolis
18h 08m1 stop Denver Intl
Frontier Logo
7:52 pm - 7:14 pmIND  Indianapolis-STL Lambert-St Louis
24h 22m2 stops Atlanta Hartsfield-Jackson Denver Intl
$232Frontier
Mon, Oct 26 - Fri, Oct 30
Frontier Logo
6:44 pm - 1:02 pmSTL  Lambert-St Louis-IND Indianapolis
17h 18m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
11:25 am - 11:16 pmIND  Indianapolis-STL Lambert-St Louis
12h 51m1 stop Orlando
$233Frontier
Fri, Nov 6 - Mon, Nov 9
Frontier Logo
8:00 pm - 3:08 pmSTL  Lambert-St Louis-IND Indianapolis
18h 08m1 stop Denver Intl
Frontier Logo
11:25 am - 11:16 pmIND  Indianapolis-STL Lambert-St Louis
12h 51m1 stop Orlando
$239Frontier
Mon, Oct 26 - Mon, Nov 2
United Airlines Logo
11:35 am - 4:34 pmSTL  Lambert-St Louis-IND Indianapolis
3h 59m1 stop Chicago O'Hare Intl
United Airlines Logo
6:33 pm - 9:40 pmIND  Indianapolis-STL Lambert-St Louis
4h 07m1 stop Chicago O'Hare Intl
$273United Airlines
Wed, Oct 21 - Mon, Oct 26
United Airlines Logo
8:00 am - 12:42 pmSTL  Lambert-St Louis-IND Indianapolis
3h 42m1 stop Chicago O'Hare Intl
United Airlines Logo
6:33 pm - 9:40 pmIND  Indianapolis-STL Lambert-St Louis
4h 07m1 stop Chicago O'Hare Intl
$273United Airlines
Thu, Oct 22 - Thu, Oct 29

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Southwest flights from St. Louis to Indianapolis

Our best Southwest deals on St. Louis to Indianapolis flight tickets
Southwest
Nov 4
STL6:20 amLambert-St Louis
5h 00m
1 stop
IND12:20 pmIndianapolis
Nov 4
IND2:10 pmIndianapolis
6h 15m
2 stops
STL7:25 pmLambert-St Louis
$278
Southwest
Oct 20
STL3:20 pmLambert-St Louis
6h 40m
1 stop
IND11:00 pmIndianapolis
Oct 22
IND6:20 amIndianapolis
7h 25m
2 stops
STL12:45 pmLambert-St Louis
$296
Southwest
Nov 6
STL4:40 pmLambert-St Louis
6h 40m
2 stops
IND12:20 amIndianapolis
Nov 9
IND1:35 pmIndianapolis
8h 25m
2 stops
STL9:00 pmLambert-St Louis
$301

United Airlines flights from St. Louis to Indianapolis

Our best United Airlines deals on St. Louis to Indianapolis flight tickets
United Airlines
Oct 21
STL11:35 amLambert-St Louis
3h 59m
1 stop
IND4:34 pmIndianapolis
Oct 26
IND6:33 pmIndianapolis
4h 07m
1 stop
STL9:40 pmLambert-St Louis
$273
United Airlines
Oct 30
STL5:00 amLambert-St Louis
3h 48m
1 stop
IND9:48 amIndianapolis
Nov 1
IND12:46 pmIndianapolis
3h 57m
1 stop
STL3:43 pmLambert-St Louis
$328
United Airlines
Oct 23
STL8:00 amLambert-St Louis
3h 42m
1 stop
IND12:42 pmIndianapolis
Oct 25
IND6:33 pmIndianapolis
4h 07m
1 stop
STL9:40 pmLambert-St Louis
$338

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Fri 10/30

6:44 pm-1:02 pm

1 stop17h 18m

Indianapolis

Mon 11/2

6:00 am-5:40 pm

2 stops12h 40m

$167

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Fri 10/30

6:44 pm-1:02 pm

1 stop17h 18m

Indianapolis

Mon 11/2

6:00 am-11:16 pm

1 stop18h 16m

$201

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Wed 10/21

6:35 pm-3:13 pm

2 stops19h 38m

Indianapolis

Thu 10/22

9:06 pm-5:40 pm

2 stops21h 34m

$219

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Mon 10/26

8:00 pm-3:08 pm

1 stop18h 08m

Indianapolis

Sat 10/31

1:47 pm-1:33 pm

2 stops24h 46m

$221

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Mon 10/26

8:00 pm-3:08 pm

1 stop18h 08m

Indianapolis

Mon 11/2

7:52 pm-3:23 pm

2 stops44h 31m

$227

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Mon 10/26

8:00 pm-3:08 pm

1 stop18h 08m

Indianapolis

Fri 10/30

7:52 pm-7:14 pm

2 stops24h 22m

$232

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Fri 11/6

6:44 pm-1:02 pm

1 stop17h 18m

Indianapolis

Mon 11/9

11:25 am-11:16 pm

1 stop12h 51m

$233

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Mon 10/26

8:00 pm-3:08 pm

1 stop18h 08m

Indianapolis

Mon 11/2

11:25 am-11:16 pm

1 stop12h 51m

$239

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Wed 10/21

11:35 am-4:34 pm

1 stop3h 59m

Indianapolis

Mon 10/26

6:33 pm-9:40 pm

1 stop4h 07m

$273
Quickest round-trip

St. LouisIndianapolis

STL Lambert-St Louis - IND Indianapolis

STLIND

Lambert-St Louis

Thu 10/22

8:00 am-12:42 pm

1 stop3h 42m

Indianapolis

Thu 10/29

6:33 pm-9:40 pm

1 stop4h 07m

$273

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 December is also very affordable. Most momondo users find prices during this month for around $276.

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 September 2026, prices for St. Louis to Indianapolis flights are approximately 8% 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

$54

Fastest flight time

3h 15m

Direct flights

None
The best one-way flight to Indianapolis from St. Louis in the past 72 hours is $54. The best round-trip flight deal from St. Louis to Indianapolis found on momondo in the last 72 hours is $167.
The fastest flight from St. Louis to Indianapolis takes 3h 15m
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 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 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
10,256 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.

An easier way to manage your Indianapolis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 10/29
Thu 11/5
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States