HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$234+ Cheap flights from Green Bay to St. Louis (GRB - STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — STL
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Green Bay to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Green Bay to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 16, 2025.

Round-trip from

$234
(American Airlines)

Popular in

May

Cheapest in

December

Average price

$388
From Green Bay Austin-Straubel to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Green Bay to St. Louis

Cheapest flights from Green Bay to St. Louis
Explore the most affordable flight options available from Green Bay to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:26 pmGRB - STL
1 stop5h 23mAmerican Airlines
Sun 10/56:05 amSTL - GRB
1 stop3h 13mAmerican Airlines
Deal found 9/15$234
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:35 pmGRB - STL
1 stop4h 00mUnited Airlines
Sat 10/43:23 pmSTL - GRB
1 stop6h 10mUnited Airlines
Deal found 9/14$239
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:00 amGRB - STL
2 stops9h 09mAmerican Airlines
Sat 10/47:23 amSTL - GRB
1 stop3h 18mAmerican Airlines
Deal found 9/14$244
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:00 amGRB - STL
1 stop3h 26mAmerican Airlines
Sun 9/288:03 pmSTL - GRB
1 stop3h 25mAmerican Airlines
Deal found 9/14$254
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/265:22 pmGRB - STL
1 stop5h 23mUnited Airlines
Sat 11/295:24 pmSTL - GRB
1 stop4h 14mUnited Airlines
Deal found 9/16$283
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:00 amGRB - STL
2 stops9h 46mAmerican Airlines
Sun 9/286:05 amSTL - GRB
1 stop3h 13mAmerican Airlines
Deal found 9/14$344
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:52 pmGRB - STL
1 stop4h 04mAmerican Airlines
Fri 11/287:11 amSTL - GRB
2 stops7h 29mAmerican Airlines
Deal found 9/16$425
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/261:20 pmGRB - STL
1 stop4h 19mUnited Airlines
Sun 11/305:24 pmSTL - GRB
1 stop4h 14mUnited Airlines
Deal found 9/16$453

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Green Bay to St. Louis that are best for you.

Fly from

Green Bay

Fly to

St. Louis

Route

Depart

Return

Price

Green BaySt. Louis

GRB - STL

GRBSTL

Green Bay Austin-Straubel

Thu 10/2

6:26 pm-11:49 pm

1 stop5h 23m

Lambert-St Louis

Sun 10/5

6:05 am-9:18 am

1 stop3h 13m

$234

Green BaySt. Louis

GRB - STL

GRBSTL

Green Bay Austin-Straubel

Tue 9/30

6:35 pm-10:35 pm

1 stop4h 00m

Lambert-St Louis

Sat 10/4

3:23 pm-9:33 pm

1 stop6h 10m

$239

Green BaySt. Louis

GRB - STL

GRBSTL

Green Bay Austin-Straubel

Wed 11/26

5:22 pm-10:45 pm

1 stop5h 23m

Lambert-St Louis

Fri 11/28

5:24 pm-9:38 pm

1 stop4h 14m

$244

Green BaySt. Louis

GRB - STL

GRBSTL

Green Bay Austin-Straubel

Wed 2/18

6:33 pm-9:44 pm

1 stop3h 11m

Lambert-St Louis

Sat 2/21

12:58 pm-5:39 pm

1 stop4h 41m

$259

Green BaySt. Louis

GRB - STL

GRBSTL

Green Bay Austin-Straubel

Wed 11/26

5:22 pm-10:45 pm

1 stop5h 23m

Lambert-St Louis

Sat 11/29

5:24 pm-9:38 pm

1 stop4h 14m

$283

Green BaySt. Louis

GRB - STL

GRBSTL

Green Bay Austin-Straubel

Thu 9/25

7:02 am-1:20 pm

1 stop6h 18m

$310

Green BaySt. Louis

GRB - STL

GRBSTL

Green Bay Austin-Straubel

Tue 9/23

7:02 am-1:20 pm

1 stop6h 18m

$310

Green BaySt. Louis

GRB - STL

GRBSTL

Green Bay Austin-Straubel

Tue 9/23

9:46 am-8:15 pm

2 stops10h 29m

$315

Green BaySt. Louis

GRB - STL

GRBSTL

Green Bay Austin-Straubel

Thu 9/25

9:48 am-7:33 pm

2 stops9h 45m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from Green Bay to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Green Bay with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Green Bay to St. Louis

What is the cheapest month to book a flight from Green Bay to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Green Bay to St. Louis (average of $311). Flying from Green Bay to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated September 16, 2025.
Read through reviews of airlines operating flights from Green Bay to St. Louis, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Green Bay to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Green Bay to St. Louis?

    For as low as $239, American Airlines can have you in St. Louis from Green Bay in 4h. The distance between Green Bay and St. Louis is about 412 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Green Bay to St. Louis round-trip?

    Flying on Delta is currently your cheapest option to St. Louis, with prices starting at $218. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $228 and $338, respectively. Delta is currently priced 39% below the average price you’ll pay for this route.

  • Can I find deals for flights from Green Bay to St. Louis that include hotel bookings?

    Yes. In addition to deals on Green Bay to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Green Bay to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Green Bay to St. Louis.

  • Can I find deals for business class flights from Green Bay to St. Louis?

    Yes. Cheapflights offers flight deals from Green Bay to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Green Bay to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Green Bay to St. Louis (average of $311). Flying from Green Bay to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Green Bay to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Kansas City flights
Minneapolis to St. Louis flights
Minneapolis to Kansas City flights
O'Hare Intl to St. Louis flights
Milwaukee to Kansas City flights
O'Hare Intl to Springfield flights
O'Hare Intl to Columbia flights
Minneapolis to Springfield flights
Milwaukee to St. Louis flights
Madison to Kansas City flights
Madison to St. Louis flights
Appleton to St. Louis flights
Minneapolis to Branson flights
Milwaukee to Springfield flights
Appleton to Springfield flights
Appleton to Kansas City flights
Green Bay to Springfield flights
O'Hare Intl to Cape Girardeau flights
Milwaukee to Joplin flights
Wausau to Kansas City flights
Duluth to Kansas City flights
Green Bay to Kansas City flights
Madison to Columbia flights
La Crosse to St. Louis flights
La Crosse to Kansas City flights
Wausau to St. Louis flights
Rhinelander to St. Louis flights
Wausau to Springfield flights
O'Hare Intl to Branson flights
Escanaba to Kansas City flights
Green Bay to Joplin flights
La Crosse to Columbia flights

Top 3 airlines flying from Green Bay to St. Louis

Discover the top 3 airlines that operate flights from Green Bay to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$468FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$329FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$338Average$438FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.