Cheap flights from Indianapolis to St. Louis from $101
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Indianapolis to St. Louis departing on 10/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Fly from
Fly to
Route
Depart
Return
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Tue 11/10
11:25 am-5:42 pm
2 stops31h 17m
Lambert-St Louis
Mon 11/30
6:35 pm-6:32 pm
1 stop22h 57m
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Tue 11/17
11:25 am-5:42 pm
2 stops31h 17m
Lambert-St Louis
Mon 11/30
6:35 pm-6:32 pm
1 stop22h 57m
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Wed 12/2
6:00 am-12:00 pm
1 stop7h 00m
Lambert-St Louis
Thu 12/3
4:15 pm-9:50 pm
1 stop4h 35m
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Thu 10/29
5:10 am-10:00 am
1 stop5h 50m
Lambert-St Louis
Mon 11/2
2:45 pm-11:05 pm
1 stop7h 20m
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Thu 10/29
5:10 am-10:00 am
1 stop5h 50m
Lambert-St Louis
Mon 11/2
2:45 pm-11:05 pm
1 stop7h 20m
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Wed 10/28
4:05 pm-10:30 pm
1 stop7h 25m
Lambert-St Louis
Mon 11/2
5:45 am-12:00 pm
1 stop5h 15m
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Thu 10/29
5:40 am-10:30 am
1 stop5h 50m
Lambert-St Louis
Mon 11/2
4:40 pm-12:15 am
2 stops6h 35m
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Wed 12/2
2:10 pm-7:25 pm
2 stops6h 15m
Lambert-St Louis
Thu 12/3
6:35 am-12:05 pm
1 stop4h 30m
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Wed 11/11
9:10 am-12:10 pm
1 stop4h 00m
Lambert-St Louis
Mon 11/30
6:50 pm-11:47 pm
1 stop3h 57m
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Tue 11/10
12:46 pm-3:43 pm
1 stop3h 57m
Lambert-St Louis
Mon 11/30
6:50 pm-11:47 pm
1 stop3h 57m
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 October is another great option to travel to St. Louis, with average flight prices from Indianapolis averaging around $272.
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?
What is the cheapest airline that flies from Indianapolis to Lambert-St Louis?
Frontier and Southwest are the most popular carriers operating from Indianapolis to Lambert-St Louis
What airlines fly to St. Louis?
United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to St. Louis from Indianapolis according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 4 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.
When to book flights from Indianapolis to St. Louis
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
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 3h 57m 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?
As of October 2026, there is 1 operator available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from Indianapolis to St. Louis is Boeing 737 MAX 8, representing 100.00% of all bookings.
What is the most popular airline from Indianapolis to St. Louis?
momondo data reveals that the most frequently booked airline on the route from Indianapolis to St. Louis is United Airlines, representing 100% of all bookings.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $265 | Free Cancellation | Rating 7.4 10,316 reviews |
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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.