Is there a train to St. Louis?

Amtrak offers service, but it requires a transfer in Chicago.

How long is the drive?

The drive is approximately 8 to 9 hours.

What is the best airport?

Detroit Metropolitan Airport (DTW) is the primary hub.

There are minimal tolls on this route depending on your specific path.

Is St. Louis walkable?

Downtown is walkable, but a car is recommended for visiting attractions.

Troy

St. Louis

Flight Driving

Troy to St. Louis

Updated: 28 May 2026

The journey from Troy to St. Louis covers approximately 530 miles. Most travelers drive via I-75 South to I-70 West, passing through Indianapolis. Alternatively, flying from Detroit Metropolitan Airport (DTW) to St. Louis Lambert International (STL) takes about 90 minutes. The drive typically requires 8 to 9 hours depending on traffic near Indianapolis. St. Louis is famous for the Gateway Arch and its unique Midwestern culture. This route is highly accessible year-round via major interstate highways.

Total Distance: 853 km driving distance; 680 km straight-line air distance.

Fastest Way

Flying from DTW to STL is the fastest, taking 90 minutes in the air plus airport transit.

Cheapest Way

Driving is the cheapest option for groups or families, costing roughly $100 in fuel.

Compare Troy to St. Louis Routes

	Flight Direct	Driving Direct
Duration	1 hour 30 mins	8 hours 30 mins
Avg Price	$250-$400	$80-$120 in fuel
Operator	Southwest Airlines	Personal Vehicle
Route	DTW to STL	I-75 S to I-70 W via Indianapolis
Tip	Book at least three weeks in advance for lower fares.	Avoid rush hour traffic in Indianapolis to save time.

Travel Tips

Traffic Alert
Check I-70 construction updates near Indianapolis before departing.
Airport Parking
Use off-site parking lots at DTW to save on daily rates.
Dining
Try St. Louis-style pizza, known for its thin crust and Provel cheese.
Navigation
Download offline maps as cell service can be spotty in rural Indiana.
Packing
Bring layers, as Midwestern weather can change rapidly.