The flight distance from St Louis Regional Airport (ALN) in Alton/St Louis, United States to Juan Santamaria International Airport (SJO) in San Jose, Costa Rica is 3,266 kilometers (2,029 miles / 1,763 nautical miles). The estimated flight time for this route is approximately 5h, flying south southeast at a heading of 168°.

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 an international route connecting United States with Costa Rica. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 11:21 in Alton/St Louis, it's 11:21 in San Jose.

There is a significant elevation difference of 2,478 feet between the two airports. Juan Santamaria International Airport sits higher than St Louis Regional Airport.

The return flight from San Jose (SJO) to Alton/St Louis (ALN) follows a heading of 351° (north). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the St Louis Regional Airport (ALN) and Juan Santamaria International Airport (SJO) detail pages, or use our flight duration calculator to compare other routes.