CA $375 Cheap Flights from Indianapolis (IND) to St. Louis (STL)

View CA $375 flight on Wed, Jul. 30, 2025Opens in a new window

Popular airlines from Indianapolis International Airport (IND) to Lambert-St. Louis International Airport (STL)

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Cheap flights from Indianapolis (IND) to St. Louis (STL)

Prices were available within the past 7 days and start at CA $375 for one-way flights and CA $749 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Jul. 30 - Sat, Aug. 2
IND
Indianapolis
STL
St. Louis
CA $749 Roundtrip, found 19 hours ago
CA $749
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Wed, Jul. 30 from Indianapolis to St. Louis, returning Sat, Aug. 2, priced at CA $749 found 19 hours ago
Delta
Wed, Jul. 30 - Sat, Aug. 2
IND
Indianapolis
STL
St. Louis
CA $749 Roundtrip, found 19 hours ago
CA $749
Roundtrip
found 19 hours ago
Select Delta flight, departing Wed, Jul. 30 from Indianapolis to St. Louis, returning Sat, Aug. 2, priced at CA $749 found 19 hours ago
United
Wed, Jul. 30 - Sat, Aug. 2
IND
Indianapolis
STL
St. Louis
CA $749 Roundtrip, found 19 hours ago
CA $749
Roundtrip
found 19 hours ago
Select United flight, departing Wed, Jul. 30 from Indianapolis to St. Louis, returning Sat, Aug. 2, priced at CA $749 found 19 hours ago
United
Wed, Jul. 30 - Sat, Aug. 2
IND
Indianapolis
STL
St. Louis
CA $750 Roundtrip, found 19 hours ago
CA $750
Roundtrip
found 19 hours ago
Select United flight, departing Wed, Jul. 30 from Indianapolis to St. Louis, returning Sat, Aug. 2, priced at CA $750 found 19 hours ago
United
Wed, Jul. 30 - Sat, Aug. 2
IND
Indianapolis
STL
St. Louis
CA $756 Roundtrip, found 19 hours ago
CA $756
Roundtrip
found 19 hours ago
Select United flight, departing Wed, Jul. 30 from Indianapolis to St. Louis, returning Sat, Aug. 2, priced at CA $756 found 19 hours ago
Delta
Fri, Aug. 1 - Tue, Aug. 5
IND
Indianapolis
STL
St. Louis
CA $763 Roundtrip, found 19 hours ago
CA $763
Roundtrip
found 19 hours ago
Select Delta flight, departing Fri, Aug. 1 from Indianapolis to St. Louis, returning Tue, Aug. 5, priced at CA $763 found 19 hours ago
United
Thu, Jul. 31 - Sun, Aug. 3
IND
Indianapolis
STL
St. Louis
CA $782 Roundtrip, found 19 hours ago
CA $782
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Jul. 31 from Indianapolis to St. Louis, returning Sun, Aug. 3, priced at CA $782 found 19 hours ago
United
Thu, Jul. 31 - Sun, Aug. 3
IND
Indianapolis
STL
St. Louis
CA $783 Roundtrip, found 19 hours ago
CA $783
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Jul. 31 from Indianapolis to St. Louis, returning Sun, Aug. 3, priced at CA $783 found 19 hours ago
United
Thu, Jul. 31 - Sun, Aug. 3
IND
Indianapolis
STL
St. Louis
CA $789 Roundtrip, found 19 hours ago
CA $789
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Jul. 31 from Indianapolis to St. Louis, returning Sun, Aug. 3, priced at CA $789 found 19 hours ago
United
Fri, Aug. 1 - Tue, Aug. 5
IND
Indianapolis
STL
St. Louis
CA $798 Roundtrip, found 19 hours ago
CA $798
Roundtrip
found 19 hours ago
Select United flight, departing Fri, Aug. 1 from Indianapolis to St. Louis, returning Tue, Aug. 5, priced at CA $798 found 19 hours ago

Find the cheapest month to fly from Indianapolis (IND) to St. Louis (STL)

August is typically the cheapest month to fly

From CA $217 - CA $801 per traveller.

Graph displaying average flight prices per month

Flight from Indianapolis to St. Louis (IND - STL) route information
Origin airport
Indianapolis Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
CA $748
Distance
364 km

Indianapolis to St. Louis Flights

The easy way to book your flights from Indianapolis to St. Louis 

With Expedia, it’s simple to find and book flights to St. Louis from Indianapolis whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Lambert-St. Louis Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Indianapolis to St. Louis today, tomorrow, or this week.  

 

Save dollars with cheap flights from Indianapolis Intl., IND to Lambert-St. Louis Intl., STL 

Sort your search results by price to find great deals on your flight from Indianapolis to St. Louis—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to St. Louis from Indianapolis currently is just CA $749 rising to CA $798.  

Here are more money-saving tips: 

  • Fly in July when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to St. Louis  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to St. Louis from Indianapolis 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to St. Louis with Expedia today.

Frequently asked questions

How much is a flight from Indianapolis Airport to Lambert-St. Louis Intl. Airport (STL)?
The lowest price advertised for a round-trip flight between Indianapolis Intl. Airport (IND) and STL is CA $749. But you better move fast. This figure is taken from fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Indianapolis Intl. Airport (IND) to Lambert Field?
We understand that things come up unexpectedly, so we've made it as simple as possible for you to cancel your trip online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Indianapolis Intl. Airport (IND) to Lambert Field that have flexible change policies?
Select our "No change fees" filter to find flexible ticketing options for your flight from IND to Lambert-St. Louis Intl. Airport (STL). This allows you to lock in a great deal in advance and still have the freedom to make changes without any additional fees. You'll just need to pay the difference in fare.
How many hours is the flight from IND to Lambert-St. Louis Intl. Airport (STL)?
Lasting around 5 hours and 19 minutes, the flight between Indianapolis Intl. Airport (IND) and STL is a good opportunity to do some last-minute trip planning. How about using the time to work on your itinerary for St. Louis?
How far is the flight from IND to Lambert Field?
The distance from IND (IND) to Lambert-St. Louis Intl. Airport (STL) (STL) is just 370 kilometres. You'll be disembarking the plane and picking up your baggage from the carousel in no time at all.
Which airlines fly direct from IND to Lambert Field?
With 0 flights every month operating from IND to Lambert-St. Louis Intl. Airport (STL), Alaska Airlines (AS) is a terrific choice. If you're eager for more options, have a look at the ticket prices from Delta (DL). This carrier operates 0 flights a month between these airports.
Are IND to Lambert-St. Louis Intl. Airport (STL) flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally pick up a bargain, with some of the cheapest fares from IND to STL surfacing a few weeks before the date of departure. If you'd rather book ahead, Expedia compares and updates the best flight deals continually — as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines release prices so far in advance.

Explore a world of travel with Expedia

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