The flight distance from Southwest Wyoming Regional Airport (RKS) in Rock Springs, United States to St Louis Lambert International Airport (STL) in St Louis, United States is 1,617 kilometers (1,004 miles / 873 nautical miles). The estimated flight time for this route is approximately 3h, flying east at a heading of 95°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation. Despite being a domestic route, there is a 1-hour time difference between the two cities.

Time zone information: When it's 06:58 in Rock Springs, it's 07:58 in St Louis.

There is a significant elevation difference of 6,147 feet between the two airports. St Louis Lambert International Airport sits lower than Southwest Wyoming Regional Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from St Louis (STL) to Rock Springs (RKS) follows a heading of 287° (west northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Southwest Wyoming Regional Airport (RKS) and St Louis Lambert International Airport (STL) detail pages, or use our flight duration calculator to compare other routes.