$119 Cheap Flights from Indianapolis (IND) to St. Louis (STL)

View $119 flight on Wed, Dec 24, 2025Opens in a new window

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

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Cheap Flights from Indianapolis to St. Louis (IND-STL)

Prices were available within the past 7 days and start at $119 for one-way flights and $217 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Feb 14 - Tue, Feb 17
IND
Indianapolis
STL
St. Louis
$217 Roundtrip, found 4 days ago
$217
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Feb 14 from Indianapolis to St. Louis, returning Tue, Feb 17, priced at $217 found 4 days ago
American Airlines
Sat, Jan 17 - Sun, Jan 18
IND
Indianapolis
STL
St. Louis
$228 Roundtrip, found 6 days ago
$228
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Jan 17 from Indianapolis to St. Louis, returning Sun, Jan 18, priced at $228 found 6 days ago
Delta
Mon, Nov 24 - Thu, Nov 27
IND
Indianapolis
STL
St. Louis
$237 Roundtrip, found 1 day ago
$237
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Nov 24 from Indianapolis to St. Louis, returning Thu, Nov 27, priced at $237 found 1 day ago
American Airlines
Sat, Nov 22 - Thu, Nov 27
IND
Indianapolis
STL
St. Louis
$245 Roundtrip, found 6 days ago
$245
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Nov 22 from Indianapolis to St. Louis, returning Thu, Nov 27, priced at $245 found 6 days ago
Delta
Wed, Nov 19 - Mon, Nov 24
IND
Indianapolis
STL
St. Louis
$247 Roundtrip, found 1 day ago
$247
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Nov 19 from Indianapolis to St. Louis, returning Mon, Nov 24, priced at $247 found 1 day ago
Southwest Airlines
Sat, Jan 17 - Sun, Jan 18
IND
Indianapolis
STL
St. Louis
$247 Roundtrip, found 6 days ago
$247
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Sat, Jan 17 from Indianapolis to St. Louis, returning Sun, Jan 18, priced at $247 found 6 days ago
United
Tue, Jan 20 - Tue, Jan 27
IND
Indianapolis
STL
St. Louis
$250 Roundtrip, found 4 days ago
$250
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jan 20 from Indianapolis to St. Louis, returning Tue, Jan 27, priced at $250 found 4 days ago
United
Tue, Jan 20 - Tue, Jan 27
IND
Indianapolis
STL
St. Louis
$252 Roundtrip, found 4 days ago
$252
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jan 20 from Indianapolis to St. Louis, returning Tue, Jan 27, priced at $252 found 4 days ago
American Airlines
Wed, Dec 10 - Tue, Dec 16
IND
Indianapolis
STL
St. Louis
$257 Roundtrip, found 19 hours ago
$257
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Wed, Dec 10 from Indianapolis to St. Louis, returning Tue, Dec 16, priced at $257 found 19 hours ago
Southwest Airlines
Wed, Dec 10 - Tue, Dec 16
IND
Indianapolis
STL
St. Louis
$257 Roundtrip, found 19 hours ago
$257
Roundtrip
found 19 hours ago
Select Southwest Airlines flight, departing Wed, Dec 10 from Indianapolis to St. Louis, returning Tue, Dec 16, priced at $257 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 $156 - $589 per traveler.

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $377
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $377

Frequently asked questions

How much does a flight from Indianapolis Intl. Airport (IND) to Lambert-St. Louis Intl. Airport (STL) cost?
Snag a cheap one-way flight from $119 or cheap return flight from $217 from Indianapolis Intl. Airport (IND) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Indianapolis Intl. Airport (IND) to Lambert-St. Louis Intl. Airport (STL)?
Flying in February is a good way to save, as it's the cheapest month for flights between IND and STL. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Indianapolis Intl. Airport (IND) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline flying from IND to STL, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Indianapolis Intl. Airport (IND) to Lambert-St. Louis Intl. Airport (STL)?
You'll have to book a flight with a layover if you're traveling from Indianapolis Intl. Airport (IND) to Lambert-St. Louis Intl. Airport (STL). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from IND to STL?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from IND to STL?
Consider booking with Delta Air Lines if you'd like to go straight from Indianapolis Intl. Airport (IND) to Lambert-St. Louis Intl. Airport (STL) without any delays. This carrier has the best track record for punctuality, with an on-time performance of 100%. Want to be updated if anything changes? You can check your flight status using the Expedia App.
What is the best time to fly from Indianapolis Intl. Airport (IND) to Lambert-St. Louis Intl. Airport (STL)?
To avoid possible delays on the Indianapolis Intl. Airport (IND) to Lambert-St. Louis Intl. Airport (STL) route, travel before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Indianapolis Intl. Airport (IND) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Last-minute fares from IND to STL are usually more expensive. For the best rates, start searching for flights early. That being said, if you're flexible with your travel plans, you may find a cheap fare right before your trip.
Is it cheaper to book an IND to STL flight and hotel package?
Securing an IND to STL flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our extensive range of hotels and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Indianapolis Intl. Airport (IND) to Lambert-St. Louis Intl. Airport (STL)?
If you booked your IND to STL flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Indianapolis Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$228
Distance
227 mi

Book with confidence

Indianapolis to St. Louis Flights

The cheapest times to fly from Indianapolis to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Indianapolis to St. Louis are during the month of February. You can find some of the cheapest flights from Indianapolis to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Indianapolis to St. Louis

Sunday is one of the best days to book for cheap flights from Indianapolis to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Indianapolis to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Indianapolis to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $119 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Indianapolis to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Indianapolis to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Indianapolis to St. Louis Flights

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