Allentown to St. Louis: Road Trip Guide & Distance

How far is Allentown from St. Louis?

The distance from Allentown to St. Louis is 793.8 miles (1277.5 km) as the crow flies. St. Louis is located W of Allentown. By car, the driving distance is approximately 952.6 miles, taking about 19h 10min. A direct flight would take roughly 2h 6min. Both are located in United States — Allentown in Pennsylvania and St. Louis in Missouri.

This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare. For a trip of this distance, flying is significantly faster. However, driving offers the flexibility to explore stops along the way.

Coordinates come from public place data for Allentown and St. Louis. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.