The flight distance from Denver International Airport (DEN) in Denver, United States to Ono-I-Lau Airport (ONU) in Ono-I-Lau, Fiji is 10,188 kilometers (6,331 miles / 5,501 nautical miles). The estimated flight time for this route is approximately 13h, flying west southwest at a heading of 244°.

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

This is an international route connecting United States with Fiji. It is an intercontinental flight between North America and Oceania. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 02:59 in Denver, it's 21:59 in Ono-I-Lau. With a 19-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 5,324 feet between the two airports. Ono-I-Lau 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 Ono-I-Lau (ONU) to Denver (DEN) follows a heading of 48° (northeast). 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 Ono-I-Lau Airport (ONU) detail pages, or use our flight duration calculator to compare other routes.