The flight distance from Allen Army Air Field (BIG) in Delta Junction Ft Greely, United States to Bandaranaike International Apt Colombo Airport (CMB) in Colombo, Sri Lanka is 11,238 kilometers (6,983 miles / 6,068 nautical miles). The estimated flight time for this route is approximately 14h, flying northwest at a heading of 314°.

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 Sri Lanka. It is an intercontinental flight between North America and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 23:16 in Delta Junction Ft Greely, it's 13:46 in Colombo. With a 14.5-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 1,255 feet between the two airports. Bandaranaike International Apt Colombo Airport sits lower than Allen Army Air Field.

The return flight from Colombo (CMB) to Delta Junction Ft Greely (BIG) follows a heading of 19° (north 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 Allen Army Air Field (BIG) and Bandaranaike International Apt Colombo Airport (CMB) detail pages, or use our flight duration calculator to compare other routes.