CA $251 Cheap Flights from Indianapolis (IND) to St. Louis (STL)

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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 3 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 rising to .

Here are more money-saving tips:

• Fly in 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 does a flight from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) cost?

You can find one-way and return flights from IND to STL with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when IND to STL ticket fares go up or down.

What is the cheapest month to fly from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

June is typically the cheapest month to fly from Indianapolis International Airport (IND) to Lambert-St. Louis International Airport (STL), with average return fares around CA$356. June often sees lower prices as it's just before the peak summer travel season, offering a sweet spot for deals. Other budget-friendly months to consider for this route include February and September.

Which airlines fly direct from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

Enter IND to STL and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

What is the cheapest airline that flies from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

For connecting flights, Frontier Airlines is one of the cheapest options, with return tickets starting from about CA$353. Louis International Airport (STL), with tickets starting from around CA$505 for flights that can be booked for departure within the next year. Southwest Airlines is one of the cheapest airlines offering nonstop return flights from Indianapolis International Airport (IND) to Lambert-St. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

How do I find cheap flights from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

To find a cheap flight from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

What is the best airline to fly with from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

The best airline to fly with from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) will differ from traveler to traveler. If you like to fly early, Southwest Airlines offers early morning flights. If price is the most important factor, Southwest Airlines typically offers the lowest fares. Southwest Airlines offers the most daily flights from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

What is the best time to fly from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

The best time to fly from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) is typically June or September. These months offer a great balance—prices are reasonable at around CA$356 for a return flight, and you'll have plenty of flight options since they're popular times to travel. If you're flexible, these months give you both affordable fares and excellent flight schedules to work with.

How many flights per day from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

There are approximately 73 connecting flights per day from Indianapolis International Airport (IND) to Lambert-St. Louis International Airport (STL). Some common connection points include O'Hare International Airport (ORD), Hartsfield-Jackson Atlanta International Airport (ATL), and Detroit Metropolitan Wayne County (DTW).

What is the earliest flight from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

The earliest flight from Indianapolis International Airport (IND) to Lambert-St. Louis International Airport (STL) typically departs around 5:00 AM local time. This flight is operated by American Airlines and Southern Airways. This is a seasonal service, active only in June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

What day of the week has the most flights from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

You'll typically find the most flights from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) on a Friday, with around 57 flights available. This gives you a good selection of options if you're planning a weekend trip or need to travel at the end of the week. Major airlines on this route include Southwest Airlines, Delta, and American Airlines. Flight options on Friday are notably more plentiful compared to other days of the week, offering you greater flexibility.

What are the most popular departure times for flights from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

The most popular departure times for flights from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) are in the afternoon, from 12pm to 3pm. Many major carriers, including American Airlines, Southwest Airlines and United, offer flights during this window. Many travellers prefer this time because it allows for a relaxed morning before heading to the airport, and you'll arrive in St. Louis with plenty of time for afternoon activities.

How long does it take to fly from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

When flying from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.), you have a few options. A nonstop flight typically takes around 1 hour, covering a distance of approximately 367 kilometers. If you opt for a one-stop flight, your travel time will be longer, usually around 6 hours 18 minutes. For flights with two or more stops, expect the journey to take about 8 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like routing, weather, and wind patterns.

Can you fly business or first class from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

You can fly business class or first class between IND and STL. First class cabins are available on Alaska Airlines, United, Delta, and American Airlines.

How do I earn miles on a Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight with Expedia?

It's easy to earn miles on a Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

What airports do you fly into for St. Louis, MO (STL) from Indianapolis, IN (IND)?

If you're planning to travel to St. Louis from Indianapolis Intl. (IND), you can fly directly into Lambert-St. Louis Intl. (STL). Some flights may connect through major hubs like William P. Hobby (HOU), Love Field (DAL), or Baltimore Washington Intl. Thurgood Marshall (BWI) before reaching St. Louis. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Is it cheaper to buy a plane ticket from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) at the last minute?

Typically, booking a last minute flight from Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Is it cheaper to book a Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight and hotel package?

Securing a Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals 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, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?

If you booked your Indianapolis, IN (IND-Indianapolis Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight within the last 24 hours, you may be able to modify or cancel 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, head to our Customer Service portal if you'd like more information.