Cheap flights from Indiana to St. Louis from $39
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Indiana to St. Louis departing on 6/17. 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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United Airlines flights from Indiana to St. Louis
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Southern / Mokulele flights from Indiana to St. Louis
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How to get the cheapest flight ticket from Indiana 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, May is the cheapest month to fly from Indiana to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $287. The month of April is another great option to travel to St. Louis, with average flight prices from Indiana averaging around $289.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $265. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $392. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest airline that flies from Indiana to Lambert-St Louis?
Southwest, United Airlines, and Southern / Mokulele are the most popular carriers operating from Indiana to Lambert-St Louis
What airlines fly to St. Louis?
American Airlines, United Airlines and Delta are the top three most popular airlines that fly to St. Louis from Indiana according to our data. American Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.
How many flights depart from Indiana to St. Louis on average per week?
475 flights are operational weekly from Indiana to St. Louis as of May 2025. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.
How long does it take to fly to St. Louis?
Flight times from Indiana to St. Louis vary, but if you’re flying out of South Bend and flying into St. Louis (one of the most popular routes), then the duration is 4h 07m on average. Another popular route from Indiana to St. Louis is flying from Fort Wayne to St. Louis, which will take roughly 4h 28m. Keep in mind that layovers or delays could extend your travel time.
Cheap Indiana to St. Louis flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Indiana to St. Louis
When did momondo last update prices for flights from Indiana to Lambert-St Louis Airport?
Prices for flights from Indiana to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Indiana to Lambert-St Louis Airport?
As of May 2025, there are 5 operators available to choose from for flights from Indiana to Lambert-St Louis Airport.
How old do you have to be to fly from Indiana 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 Indiana to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Indiana to St. Louis
Compare and see reviews for airlines that fly from Indiana to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $164 | Free Cancellation | Rating 7.4 8,726 reviews | |||
| PriceFrom $198 | Free Cancellation | Rating 8.0 7,949 reviews | |||
| PriceFrom $198 | Free Cancellation | Rating 7.2 10,000 reviews |
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Why should I use momondo to find a flight deal from Indiana to St. Louis?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Indiana to St. Louis. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Indiana to St. Louis with flexible booking policies on momondo?
Yes. All flights to St. Louis from Indiana on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Indiana to St. Louis?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Indiana.
I’m not ready to book a flight from Indiana to St. Louis right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Indiana to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.