$100 Cheap Flights from St. Louis (STL) to Green Bay (GRB)

View $100 flight on Sat, Jul 5, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Green Bay Austin Straubel Intl. Airport (GRB)

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Find available prices by choosing your travel dates.

Cheap Flights from St. Louis to Green Bay (STL-GRB)

Prices were available within the past 7 days and start at $100 for one-way flights and $214 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Jul 5 - Sat, Jul 12
STL
St. Louis
GRB
Green Bay
$214 Roundtrip, found 6 hours ago
$214
Roundtrip
found 6 hours ago
Select Delta flight, departing Sat, Jul 5 from St. Louis to Green Bay, returning Sat, Jul 12, priced at $214 found 6 hours ago
Delta
Wed, May 21 - Wed, May 28
STL
St. Louis
GRB
Green Bay
$219 Roundtrip, found 1 day ago
$219
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, May 21 from St. Louis to Green Bay, returning Wed, May 28, priced at $219 found 1 day ago
American Airlines
Sat, May 17 - Sun, May 25
STL
St. Louis
GRB
Green Bay
$225 Roundtrip, found 23 hours ago
$225
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Sat, May 17 from St. Louis to Green Bay, returning Sun, May 25, priced at $225 found 23 hours ago
Delta
Sat, May 3 - Sat, May 24
STL
St. Louis
GRB
Green Bay
$228 Roundtrip, found 5 days ago
$228
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, May 3 from St. Louis to Green Bay, returning Sat, May 24, priced at $228 found 5 days ago
Delta
Sat, May 17 - Sun, May 25
STL
St. Louis
GRB
Green Bay
$228 Roundtrip, found 23 hours ago
$228
Roundtrip
found 23 hours ago
Select Delta flight, departing Sat, May 17 from St. Louis to Green Bay, returning Sun, May 25, priced at $228 found 23 hours ago
Delta
Sun, Jun 8 - Fri, Jun 20
STL
St. Louis
GRB
Green Bay
$234 Roundtrip, found 6 hours ago
$234
Roundtrip
found 6 hours ago
Select Delta flight, departing Sun, Jun 8 from St. Louis to Green Bay, returning Fri, Jun 20, priced at $234 found 6 hours ago
Delta
Sun, Jun 8 - Wed, Jun 18
STL
St. Louis
GRB
Green Bay
$239 Roundtrip, found 6 hours ago
$239
Roundtrip
found 6 hours ago
Select Delta flight, departing Sun, Jun 8 from St. Louis to Green Bay, returning Wed, Jun 18, priced at $239 found 6 hours ago
American Airlines
Fri, May 2 - Fri, May 9
STL
St. Louis
GRB
Green Bay
$239 Roundtrip, found 6 days ago
$239
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, May 2 from St. Louis to Green Bay, returning Fri, May 9, priced at $239 found 6 days ago
United
Mon, May 26 - Sat, May 31
STL
St. Louis
GRB
Green Bay
$243 Roundtrip, found 3 days ago
$243
Roundtrip
found 3 days ago
Select United flight, departing Mon, May 26 from St. Louis to Green Bay, returning Sat, May 31, priced at $243 found 3 days ago
United
Tue, May 27 - Wed, May 28
STL
St. Louis
GRB
Green Bay
$243 Roundtrip, found 1 day ago
$243
Roundtrip
found 1 day ago
Select United flight, departing Tue, May 27 from St. Louis to Green Bay, returning Wed, May 28, priced at $243 found 1 day ago
Flights from St. Louis (STL) to Green Bay (GRB)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Austin Straubel Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$198
Distance
413 mi

St. Louis to Green Bay Flights

The cheapest times to fly from St. Louis to Green Bay

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

The best time to book a flight from St. Louis to Green Bay

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

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 Green Bay in 2025. You can also book with separate airlines for your outbound and return journeys, from $100 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 Green Bay 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 Green Bay 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 Austin Straubel Intl. Airport (GRB) cost?
Discover the latest flight deals from STL to GRB by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from STL to GRB?
The cheapest flights from STL to GRB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from STL to GRB?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from STL to GRB. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Austin Straubel Intl. Airport (GRB)?
There aren’t any daily direct flights departing from Lambert-St. Louis Intl. Airport (STL) to Austin Straubel Intl. Airport (GRB). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you’ll be cruising above the clouds in no time.
What day of the week has the most flights from STL to GRB?
Typically you’ll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the season, airline and other factors.*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 Austin Straubel Intl. Airport (GRB)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Austin Straubel Intl. Airport (GRB) route, travel before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**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 Austin Straubel Intl. Airport (GRB) last-minute?
Booking your flight from STL to GRB just before your trip is usually more expensive. However, if there’s some wiggle room with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a STL to GRB flight and hotel package?
Securing a STL to GRB flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our wide range of accommodations and then add car rentals, activities and flights 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 Austin Straubel Intl. Airport (GRB)?
If you reserved your STL to GRB flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. 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.