Cheap Flights from St. Louis (STL) to Gary (GYY)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Gary, IN (GYY-Gary - Chicago Intl.)

Alternative airports near Gary

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

Select flight to Midway Intl. MDW. Cheapest option available. Average driving time to city center is 38 minutes. Flights from $214
MDW
Midway Intl.
Cheapest
Average driving time to city center38 min
Flights from $214
Flights from St. Louis (STL) to Gary (GYY)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Gary - Chicago Intl.
Distance
252 mi

St. Louis to Gary Flights

The cheapest times to fly from St. Louis to Gary

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

 

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

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

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 Gary in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Gary 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 Gary 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.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Gary, IN (GYY-Gary - Chicago Intl.) cost?
Secure a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Gary, IN (GYY-Gary - Chicago Intl.) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Gary, IN (GYY-Gary - Chicago Intl.)?
The cheapest month to fly from STL to GYY is , when demand is low. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Gary, IN (GYY-Gary - Chicago Intl.)?
To find the cheapest airline flying from STL to GYY, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Gary, IN (GYY-Gary - Chicago Intl.)?
You'll have to catch a flight with a layover if you're traveling from Lambert-St. Louis Intl. Airport (STL) to Gary, IN (GYY-Gary - Chicago Intl.). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from STL to GYY?
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 public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Gary, IN (GYY-Gary - Chicago Intl.)?
To arrive at Gary, IN (GYY-Gary - Chicago Intl.) on schedule, select a flight that takes off from 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.
What airports do you fly into for Gary from Lambert-St. Louis Intl. Airport (STL)?
If you're departing on a direct flight from Lambert-St. Louis Intl. Airport (STL) to Gary, you'll touch down at either O'Hare Intl. Airport (ORD) or Midway Intl. Airport (MDW).
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Gary, IN (GYY-Gary - Chicago Intl.) last-minute?
Booking your plane ticket from STL to GYY just before your trip is typically more expensive. However, if there's some wiggle room with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a STL to GYY flight and hotel package?
Opting for a STL to GYY flight and hotel package is typically 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 car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Gary, IN (GYY-Gary - Chicago Intl.)?
If you booked your STL to GYY flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare 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 for further details.

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*Available to One Key members.