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Cheap flights from Indianapolis to St. Louis from $87

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Indianapolis to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
4:12 pm - 7:17 pmIND  Indianapolis-STL Lambert-St Louis
28h 05m1 stop Denver Intl
Frontier Logo
2:29 pm - 6:53 pmSTL  Lambert-St Louis-IND Indianapolis
27h 24m1 stop Atlanta Hartsfield-Jackson
$156Frontier
Fri, Sep 18 - Fri, Sep 25
Frontier Logo
4:12 pm - 7:17 pmIND  Indianapolis-STL Lambert-St Louis
28h 05m1 stop Denver Intl
Frontier Logo
6:35 pm - 7:04 pmSTL  Lambert-St Louis-IND Indianapolis
23h 29m1 stop Atlanta Hartsfield-Jackson
$160Frontier
Fri, Oct 2 - Fri, Oct 9
Frontier Logo
7:48 pm - 7:17 pmIND  Indianapolis-STL Lambert-St Louis
24h 29m2 stops Atlanta Hartsfield-Jackson Denver Intl
Frontier Logo
6:35 pm - 7:04 pmSTL  Lambert-St Louis-IND Indianapolis
23h 29m1 stop Atlanta Hartsfield-Jackson
$163Frontier
Fri, Oct 2 - Fri, Oct 9
Frontier Logo
10:44 am - 7:39 pmIND  Indianapolis-STL Lambert-St Louis
9h 55m1 stop Orlando
Frontier Logo
8:34 pm - 9:49 amSTL  Lambert-St Louis-IND Indianapolis
12h 15m1 stop Orlando
$174Frontier
Thu, Oct 29 - Mon, Nov 2
Frontier Logo
7:48 pm - 4:34 pmIND  Indianapolis-STL Lambert-St Louis
45h 46m2 stops Atlanta Hartsfield-Jackson Orlando
Frontier Logo
2:29 pm - 6:53 pmSTL  Lambert-St Louis-IND Indianapolis
27h 24m1 stop Atlanta Hartsfield-Jackson
$189Frontier
Fri, Sep 18 - Fri, Sep 25
Frontier Logo
10:44 am - 7:39 pmIND  Indianapolis-STL Lambert-St Louis
9h 55m1 stop Orlando
Frontier Logo
8:34 pm - 9:49 amSTL  Lambert-St Louis-IND Indianapolis
12h 15m1 stop Orlando
$214Frontier
Thu, Oct 29 - Mon, Nov 2
Frontier Logo
4:12 pm - 7:17 pmIND  Indianapolis-STL Lambert-St Louis
28h 05m1 stop Denver Intl
Frontier Logo
12:17 pm - 6:53 pmSTL  Lambert-St Louis-IND Indianapolis
29h 36m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson
$216Frontier
Tue, Sep 15 - Tue, Sep 22
Frontier Logo
8:56 pm - 7:17 pmIND  Indianapolis-STL Lambert-St Louis
23h 21m1 stop Denver Intl
Frontier Logo
5:19 pm - 6:53 pmSTL  Lambert-St Louis-IND Indianapolis
48h 34m2 stops Orlando Atlanta Hartsfield-Jackson
$234Frontier
Thu, Sep 10 - Thu, Sep 17
United Airlines Logo
3:12 pm - 6:16 pmIND  Indianapolis-STL Lambert-St Louis
4h 04m1 stop Chicago O'Hare Intl
United Airlines Logo
7:18 am - 1:05 pmSTL  Lambert-St Louis-IND Indianapolis
4h 47m1 stop Chicago O'Hare Intl
$292United Airlines
Sat, Dec 12 - Fri, Dec 18
United Airlines Logo
7:04 pm - 10:59 pmIND  Indianapolis-STL Lambert-St Louis
4h 55m1 stop Chicago O'Hare Intl
United Airlines Logo
8:00 am - 12:42 pmSTL  Lambert-St Louis-IND Indianapolis
3h 42m1 stop Chicago O'Hare Intl
$292United Airlines
Sat, Oct 3 - Sun, Oct 4

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Frontier flights from Indianapolis to St. Louis

Our best Frontier deals on Indianapolis to St. Louis flight tickets
Frontier
Sep 18
IND4:12 pmIndianapolis
28h 05m
1 stop
STL7:17 pmLambert-St Louis
Sep 25
STL2:29 pmLambert-St Louis
27h 24m
1 stop
IND6:53 pmIndianapolis
$156
Frontier
Oct 2
IND4:12 pmIndianapolis
28h 05m
1 stop
STL7:17 pmLambert-St Louis
Oct 9
STL6:35 pmLambert-St Louis
23h 29m
1 stop
IND7:04 pmIndianapolis
$160
Frontier
Oct 2
IND7:48 pmIndianapolis
24h 29m
2 stops
STL7:17 pmLambert-St Louis
Oct 9
STL6:35 pmLambert-St Louis
23h 29m
1 stop
IND7:04 pmIndianapolis
$163

Southwest flights from Indianapolis to St. Louis

Our best Southwest deals on Indianapolis to St. Louis flight tickets
Southwest
Dec 8
IND5:30 pmIndianapolis
5h 40m
1 stop
STL10:10 pmLambert-St Louis
Dec 22
STL5:30 amLambert-St Louis
5h 20m
1 stop
IND11:50 amIndianapolis
$237
Southwest
Dec 8
IND5:25 pmIndianapolis
5h 30m
1 stop
STL9:55 pmLambert-St Louis
Dec 22
STL10:10 amLambert-St Louis
6h 30m
2 stops
IND5:40 pmIndianapolis
$242
Southwest
Dec 8
IND2:10 pmIndianapolis
6h 15m
2 stops
STL7:25 pmLambert-St Louis
Dec 22
STL10:10 amLambert-St Louis
6h 30m
2 stops
IND5:40 pmIndianapolis
$247

momondo Fare Finder

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

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

IndianapolisSt. Louis

IND Indianapolis - STL Lambert-St Louis

INDSTL

Indianapolis

Fri 9/18

4:12 pm-7:17 pm

1 stop28h 05m

Lambert-St Louis

Fri 9/25

2:29 pm-6:53 pm

1 stop27h 24m

$156

IndianapolisSt. Louis

IND Indianapolis - STL Lambert-St Louis

INDSTL

Indianapolis

Fri 10/2

4:12 pm-7:17 pm

1 stop28h 05m

Lambert-St Louis

Fri 10/9

6:35 pm-7:04 pm

1 stop23h 29m

$160

IndianapolisSt. Louis

IND Indianapolis - STL Lambert-St Louis

INDSTL

Indianapolis

Fri 10/2

7:48 pm-7:17 pm

2 stops24h 29m

Lambert-St Louis

Fri 10/9

6:35 pm-7:04 pm

1 stop23h 29m

$163

IndianapolisSt. Louis

IND Indianapolis - STL Lambert-St Louis

INDSTL

Indianapolis

Thu 10/29

10:44 am-7:39 pm

1 stop9h 55m

Lambert-St Louis

Mon 11/2

8:34 pm-9:49 am

1 stop12h 15m

$174

IndianapolisSt. Louis

IND Indianapolis - STL Lambert-St Louis

INDSTL

Indianapolis

Fri 9/18

7:48 pm-4:34 pm

2 stops45h 46m

Lambert-St Louis

Fri 9/25

2:29 pm-6:53 pm

1 stop27h 24m

$189

IndianapolisSt. Louis

IND Indianapolis - STL Lambert-St Louis

INDSTL

Indianapolis

Thu 10/29

10:44 am-7:39 pm

1 stop9h 55m

Lambert-St Louis

Mon 11/2

8:34 pm-9:49 am

1 stop12h 15m

$214

IndianapolisSt. Louis

IND Indianapolis - STL Lambert-St Louis

INDSTL

Indianapolis

Tue 9/15

4:12 pm-7:17 pm

1 stop28h 05m

Lambert-St Louis

Tue 9/22

12:17 pm-6:53 pm

2 stops29h 36m

$216

IndianapolisSt. Louis

IND Indianapolis - STL Lambert-St Louis

INDSTL

Indianapolis

Thu 9/10

8:56 pm-7:17 pm

1 stop23h 21m

Lambert-St Louis

Thu 9/17

5:19 pm-6:53 pm

2 stops48h 34m

$234

IndianapolisSt. Louis

IND Indianapolis - STL Lambert-St Louis

INDSTL

Indianapolis

Sat 12/12

3:12 pm-6:16 pm

1 stop4h 04m

Lambert-St Louis

Fri 12/18

7:18 am-1:05 pm

1 stop4h 47m

$292
Quickest round-trip

IndianapolisSt. Louis

IND Indianapolis - STL Lambert-St Louis

INDSTL

Indianapolis

Sat 10/3

7:04 pm-10:59 pm

1 stop4h 55m

Lambert-St Louis

Sun 10/4

8:00 am-12:42 pm

1 stop3h 42m

$292

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 St. Louis from

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

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 St. Louis?

In general, January is the cheapest month to fly from Indianapolis to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $265. The month of March is another great option to travel to St. Louis, with average flight prices from Indianapolis averaging around $281.

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

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

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

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

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

When to book flights from Indianapolis to St. Louis

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

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

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

Best Price Found

$87

Fastest flight time

5h 50m

Direct flights

None
The best one-way flight to St. Louis from Indianapolis in the past 72 hours is $87. The best round-trip flight deal from Indianapolis to St. Louis found on momondo in the last 72 hours is $156.
The fastest flight from Indianapolis to St. Louis takes 5h 50m
There are no direct flights from Indianapolis to St. Louis. There are no popular flight routes from Indianapolis to St. Louis.
Search flight deals

Frequently asked questions about flying from Indianapolis to St. Louis

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

    The distance between Indianapolis and Lambert-St Louis is about 230.0 mi. Typically, this will take 5h 50m by plane in normal conditions.

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

    Prices for flights from Indianapolis Airport to Lambert-St Louis Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Indianapolis Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Best airlines flying from Indianapolis to St. Louis

Compare and see reviews for airlines that fly from Indianapolis to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $265Free CancellationRating
7.4
10,113 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Maryland Heights
St. Peters
Hermann
Alton
Florissant
Collinsville
O'Fallon
Farmington
Clayton
Fenton
Festus
Wentzville
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

Why use momondo?

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

It is quick and easy to find Indianapolis to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Indianapolis with this policy.

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

momondo helps you find the best flight between Indianapolis and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Indianapolis to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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