$59 Cheap Flights from St. Louis (STL) to Indianapolis (IND)

View $59 flight on Mon, Nov 3, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $59 for one-way flights and $118 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Nov 12 - Thu, Nov 13
STL
St. Louis
IND
Indianapolis
$118 Roundtrip, found 19 hours ago
$118
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Wed, Nov 12 from St. Louis to Indianapolis, returning Thu, Nov 13, priced at $118 found 19 hours ago
Frontier Airlines
Tue, Oct 21 - Thu, Oct 30
STL
St. Louis
IND
Indianapolis
$139 Roundtrip, found 16 hours ago
$139
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Tue, Oct 21 from St. Louis to Indianapolis, returning Thu, Oct 30, priced at $139 found 16 hours ago
Frontier Airlines
Mon, Nov 10 - Thu, Nov 13
STL
St. Louis
IND
Indianapolis
$149 Roundtrip, found 19 hours ago
$149
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Mon, Nov 10 from St. Louis to Indianapolis, returning Thu, Nov 13, priced at $149 found 19 hours ago
Frontier Airlines
Fri, Nov 7 - Sun, Nov 9
STL
St. Louis
IND
Indianapolis
$160 Roundtrip, found 9 hours ago
$160
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Fri, Nov 7 from St. Louis to Indianapolis, returning Sun, Nov 9, priced at $160 found 9 hours ago
Frontier Airlines
Sat, Oct 11 - Sat, Oct 18
STL
St. Louis
IND
Indianapolis
$165 Roundtrip, found 6 days ago
$165
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sat, Oct 11 from St. Louis to Indianapolis, returning Sat, Oct 18, priced at $165 found 6 days ago
Frontier Airlines
Sat, Nov 15 - Sun, Nov 16
STL
St. Louis
IND
Indianapolis
$167 Roundtrip, found 1 day ago
$167
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Nov 15 from St. Louis to Indianapolis, returning Sun, Nov 16, priced at $167 found 1 day ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
STL
St. Louis
IND
Indianapolis
$189 Roundtrip, found 3 hours ago
$189
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Oct 31 from St. Louis to Indianapolis, returning Sun, Nov 2, priced at $189 found 3 hours ago
Delta
Wed, Dec 24 - Thu, Dec 25
STL
St. Louis
IND
Indianapolis
$207 Roundtrip, found 1 day ago
$207
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Dec 24 from St. Louis to Indianapolis, returning Thu, Dec 25, priced at $207 found 1 day ago
United
Sat, Nov 1 - Sun, Nov 2
STL
St. Louis
IND
Indianapolis
$214 Roundtrip, found 3 days ago
$214
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 1 from St. Louis to Indianapolis, returning Sun, Nov 2, priced at $214 found 3 days ago
Southwest Airlines
Fri, Oct 31 - Sun, Nov 2
STL
St. Louis
IND
Indianapolis
$219 Roundtrip, found 3 hours ago
$219
Roundtrip
found 3 hours ago
Select Southwest Airlines flight, departing Fri, Oct 31 from St. Louis to Indianapolis, returning Sun, Nov 2, priced at $219 found 3 hours ago

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

August is typically the cheapest month to fly

From $154 - $527 per traveler.

Alternative airports near Indianapolis

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

Select flight to Indianapolis Intl. IND. Cheapest and Closest option available. Average driving time to city center is 19 minutes. Flights from $397
IND
Indianapolis Intl.
CheapestClosest
Average driving time to city center19 min
Flights from $397

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Indianapolis Intl. Airport (IND) cost?
Snag a cheap one-way flight from $59 or cheap return flight from $118 from Lambert-St. Louis Intl. Airport (STL) to Indianapolis Intl. Airport (IND) 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 Lambert-St. Louis Intl. Airport (STL) to Indianapolis Intl. Airport (IND)?
Traveling in November is a good way to save, as it's the cheapest month for flights between STL and IND. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Indianapolis Intl. Airport (IND)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from STL to IND. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Indianapolis Intl. Airport (IND)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Indianapolis Intl. Airport (IND) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to IND?
You'll generally 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 STL to IND?
With 100% of flights generally arriving on schedule, American Airlines has the best on-time performance for nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Indianapolis Intl. Airport (IND). To check your flight status and get notifications if anything changes, use the Expedia App.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Indianapolis Intl. Airport (IND)?
To reach Indianapolis Intl. Airport (IND) on schedule, select a flight that leaves Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Lambert-St. Louis Intl. Airport (STL) to Indianapolis Intl. Airport (IND) last-minute?
Holding off until right before your break to book a ticket from STL to IND often results in higher prices. While you may come across some last-minute deals, they're not always guaranteed. Keep your travel plans flexible for a better chance of landing a bargain.
Is it cheaper to book a STL to IND flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to IND flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place takes the hassle out of planning your trip. Just pick your flights and select from our wide range of stays, then personalize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Indianapolis Intl. Airport (IND)?
In most cases, you can cancel or modify your STL to IND flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you want further details, go to our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Indianapolis Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$118
Distance
227 mi

Book with confidence

St. Louis to Indianapolis Flights

The cheapest times to fly from St. Louis to Indianapolis

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 St. Louis to Indianapolis are during the month of November. You can find some of the cheapest flights from St. Louis to Indianapolis with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from St. Louis to Indianapolis: 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 St. Louis to Indianapolis

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 St. Louis to Indianapolis in 2025. You can also book with separate airlines for your outbound and return journeys, from $59 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 St. Louis to Indianapolis 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 St. Louis to Indianapolis 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.

 

St. Louis to Indianapolis Flights

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*Available to One Key members.