How does KAYAK find such low prices on flights from Indiana to St. Louis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Indiana to St. Louis.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Indiana to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Indiana is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Indiana to St. Louis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Indiana with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Indiana to St. Louis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Indiana up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$70 CHEAP FLIGHTS from Indiana to St. Louis

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

Cheap Flights from Indiana to St. Louis

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Indiana to St. Louis

Fri, Oct 30 - Fri, Nov 6

3:58 pm - 7:14 pmIND Indianapolis-STL Lambert-St Louis

28h 16m1 stop Denver Intl

6:44 pm - 1:02 pmSTL Lambert-St Louis-IND Indianapolis

17h 18m1 stop Atlanta Hartsfield-Jackson

$127Frontier

Tue, Oct 27 - Fri, Oct 30

4:03 pm - 3:23 pmIND Indianapolis-STL Lambert-St Louis

24h 20m1 stop Denver Intl

6:44 pm - 1:02 pmSTL Lambert-St Louis-IND Indianapolis

17h 18m1 stop Atlanta Hartsfield-Jackson

$127Frontier

Tue, Oct 27 - Fri, Oct 30

4:03 pm - 3:23 pmIND Indianapolis-STL Lambert-St Louis

24h 20m1 stop Denver Intl

6:44 pm - 1:02 pmSTL Lambert-St Louis-IND Indianapolis

17h 18m1 stop Atlanta Hartsfield-Jackson

$159Frontier

Fri, Oct 30 - Fri, Nov 6

7:52 pm - 7:14 pmIND Indianapolis-STL Lambert-St Louis

24h 22m2 stops Atlanta Hartsfield-Jackson Denver Intl

6:44 pm - 1:02 pmSTL Lambert-St Louis-IND Indianapolis

17h 18m1 stop Atlanta Hartsfield-Jackson

$165Frontier

Mon, Oct 26 - Sat, Oct 31

4:39 pm - 9:40 pmSBN South Bend/Michiana-STL Lambert-St Louis

6h 01m1 stop Chicago O'Hare Intl

5:00 am - 9:50 amSTL Lambert-St Louis-SBN South Bend/Michiana

3h 50m1 stop Chicago O'Hare Intl

$309United Airlines

Tue, Oct 27 - Tue, Nov 3

1:08 pm - 3:43 pmSBN South Bend/Michiana-STL Lambert-St Louis

3h 35m1 stop Chicago O'Hare Intl

6:50 pm - 11:31 pmSTL Lambert-St Louis-SBN South Bend/Michiana

3h 41m1 stop Chicago O'Hare Intl

$309United Airlines

Sat, Jan 9 - Mon, Jan 11

5:15 am - 10:30 amFWA Fort Wayne-STL Lambert-St Louis

6h 15m1 stop Chicago O'Hare Intl

7:00 pm - 11:57 pmSTL Lambert-St Louis-FWA Fort Wayne

3h 57m1 stop Chicago O'Hare Intl

$319United Airlines

Thu, Nov 5 - Mon, Nov 9

6:00 am - 10:53 amSBN South Bend/Michiana-STL Lambert-St Louis

5h 53m1 stop Chicago O'Hare Intl

7:26 am - 1:57 pmSTL Lambert-St Louis-SBN South Bend/Michiana

5h 31m1 stop Chicago O'Hare Intl

$347American Airlines

Fri, Oct 16 - Sun, Oct 18

7:09 pm - 12:19 amFWA Fort Wayne-STL Lambert-St Louis

6h 10m1 stop Chicago O'Hare Intl

11:31 am - 6:39 pmSTL Lambert-St Louis-FWA Fort Wayne

6h 08m1 stop Chicago O'Hare Intl

$349American Airlines

Tue, Oct 27 - Mon, Nov 2

7:07 am - 10:50 amSBN South Bend/Michiana-STL Lambert-St Louis

4h 43m1 stop Chicago O'Hare Intl

1:20 pm - 9:00 pmSTL Lambert-St Louis-SBN South Bend/Michiana

6h 40m1 stop Chicago O'Hare Intl

$373American Airlines

Recent last minute flight deals from Indiana to St. Louis

Wed, Oct 7 - Fri, Oct 9

7:05 am - 10:48 amIND Indianapolis-STL Lambert-St Louis

4h 43m1 stop Chicago O'Hare Intl

7:01 pm - 11:44 pmSTL Lambert-St Louis-IND Indianapolis

3h 43m1 stop Chicago O'Hare Intl

$653United Airlines

Thu, Oct 8 - Sun, Oct 11

6:45 am - 9:00 amIND Indianapolis-STL Lambert-St Louis

3h 15m1 stop Chicago Midway

1:40 pm - 9:05 pmSTL Lambert-St Louis-IND Indianapolis

6h 25m1 stop Kansas City

$697Southwest

Thu, Oct 8 - Sun, Oct 11

10:22 pm - 4:58 pmIND Indianapolis-STL Lambert-St Louis

19h 36m1 stop Dallas/Fort Worth

5:53 pm - 10:58 amSTL Lambert-St Louis-IND Indianapolis

16h 05m2 stops Dallas/Fort Worth Orlando

$739Frontier

Tue, Oct 6 - Thu, Oct 8

6:25 pm - 11:04 pmSBN South Bend/Michiana-STL Lambert-St Louis

5h 39m1 stop Charlotte Douglas

7:29 am - 2:04 pmSTL Lambert-St Louis-SBN South Bend/Michiana

5h 35m1 stop Chicago O'Hare Intl

$757American Airlines

Thu, Oct 8 - Sun, Oct 11

4:08 pm - 4:58 pmIND Indianapolis-STL Lambert-St Louis

25h 50m2 stops Denver Intl Dallas/Fort Worth

5:53 pm - 3:13 pmSTL Lambert-St Louis-IND Indianapolis

20h 20m2 stops Dallas/Fort Worth Denver Intl

$789Frontier

Sun, Oct 4 - Tue, Oct 6

6:26 am - 12:00 pmFWA Fort Wayne-STL Lambert-St Louis

6h 34m1 stop Charlotte Douglas

8:37 am - 2:15 pmSTL Lambert-St Louis-FWA Fort Wayne

4h 38m1 stop Charlotte Douglas

$805American Airlines

Mon, Oct 5 - Wed, Oct 7

2:28 pm - 7:41 pmFWA Fort Wayne-STL Lambert-St Louis

6h 13m1 stop Chicago O'Hare Intl

8:00 am - 1:50 pmSTL Lambert-St Louis-FWA Fort Wayne

4h 50m1 stop Chicago O'Hare Intl

$805United Airlines

Tue, Oct 6 - Thu, Oct 8

7:07 am - 2:46 pmSBN South Bend/Michiana-STL Lambert-St Louis

8h 39m2 stops Chicago O'Hare Intl Charlotte Douglas

7:29 am - 2:04 pmSTL Lambert-St Louis-SBN South Bend/Michiana

5h 35m1 stop Chicago O'Hare Intl

$1,072American Airlines

Sun, Oct 4 - Tue, Oct 6

5:27 am - 12:00 pmFWA Fort Wayne-STL Lambert-St Louis

7h 33m2 stops Chicago O'Hare Intl Charlotte Douglas

5:27 pm - 12:20 amSTL Lambert-St Louis-FWA Fort Wayne

5h 53m1 stop Chicago O'Hare Intl

$1,105American Airlines

Mon, Oct 5 - Wed, Oct 7

1:43 pm - 8:57 pmFWA Fort Wayne-STL Lambert-St Louis

8h 14m2 stops Charlotte Douglas Chicago O'Hare Intl

5:00 am - 11:27 amSTL Lambert-St Louis-FWA Fort Wayne

5h 27m1 stop Charlotte Douglas

$1,140American Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$70

Best time to beat the crowds with an average 10% drop in price.

Most popular time to fly with an average 8% increase in price.

Flight from Indianapolis to St. Louis

How does KAYAK find such low prices on flights from Indiana to St. Louis?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Indiana to St. Louis.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Indiana to St. Louis?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Indiana is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Indiana to St. Louis?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Indiana with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Indiana to St. Louis?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Indiana up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.