The flight distance from Denver International Airport (DEN) in Denver, United States to Arenal Airport (FON) in La Fortuna/San Carlos, Costa Rica is 3,819 kilometers (2,373 miles / 2,062 nautical miles). The estimated flight time for this route is approximately 5h, flying southeast at a heading of 143°.

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 02:32 in Denver, it's 03:32 in La Fortuna/San Carlos.

There is a significant elevation difference of 5,092 feet between the two airports. Arenal Airport sits lower than Denver International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from La Fortuna/San Carlos (FON) to Denver (DEN) follows a heading of 332° (north 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 Denver International Airport (DEN) and Arenal Airport (FON) detail pages, or use our flight duration calculator to compare other routes.