Is there a direct train?

No, there is no direct Amtrak service between Green Bay and St. Louis.

How long is the drive?

The drive typically takes between 8 and 9 hours depending on traffic.

What is the best airport?

St. Louis Lambert International Airport (STL) is the primary hub.

Yes, expect tolls when passing through the Chicago metropolitan area.

Yes, the route follows major interstate highways which are well-maintained.

Green Bay

St. Louis

Flight Driving

Green Bay to St. Louis

Updated: 30 May 2026

The journey from Green Bay to St. Louis covers approximately 520 miles. Driving via I-43 South and I-55 South is the most common route, taking roughly 8 hours. Alternatively, you can fly from Green Bay Austin Straubel International Airport to St. Louis Lambert International Airport. This route connects the industrial heart of Wisconsin to the historic Gateway City. Expect varied terrain from the Great Lakes region to the Mississippi River valley.

Total Distance: 837 km driving distance, 720 km straight-line air distance.

Fastest Way

Flying is the fastest, though total time includes airport security and layovers.

Cheapest Way

Driving is the most cost-effective option for groups or families.

Compare Green Bay to St. Louis Routes

	Flight Connecting	Driving Direct
Duration	4 hours 30 mins	8 hours 15 mins
Avg Price	$350-$600	$80-$120 in fuel
Operator	American Airlines	Personal Vehicle
Route	GRB to ORD to STL.	I-43 S to I-90 E to I-55 S through Chicago and Springfield.
Tip	Book at least 21 days in advance to secure lower fares.	Avoid Chicago rush hour traffic between 7 AM and 9 AM or 4 PM and 6 PM.

Travel Tips

Traffic Alert
Chicago traffic on I-90/I-94 is notoriously heavy; plan your departure to bypass it.
Parking
Use the ParkWhiz app to find discounted parking garages in downtown St. Louis.
Airport Transit
The MetroLink light rail connects St. Louis Lambert Airport directly to downtown.
Weather Prep
St. Louis summers are humid; carry extra water if walking downtown.
Toll Roads
Keep an I-PASS or E-ZPass handy for tolls in Illinois.

Safety Tips

Vehicle Check
Ensure your tires and fluids are checked before a long 8-hour drive.
Night Driving
Avoid driving through major urban centers late at night if possible.
Emergency Kit
Keep a roadside emergency kit with jumper cables and a flashlight in your trunk.
Stay Alert
Take breaks every 2 hours to prevent driver fatigue on long stretches of highway.