The flight distance from Portland International Airport (PDX) in Portland, United States to Tachileik Airport (THL) in Tachileik, Myanmar is 11,506 kilometers (7,150 miles / 6,213 nautical miles). The estimated flight time for this route is approximately 15h, flying northwest at a heading of 319°.

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 Myanmar. 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 06:22 in Portland, it's 20:52 in Tachileik. 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 1,249 feet between the two airports. Tachileik Airport sits higher than Portland International Airport.

The return flight from Tachileik (THL) to Portland (PDX) follows a heading of 29° (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 Portland International Airport (PDX) and Tachileik Airport (THL) detail pages, or use our flight duration calculator to compare other routes.