The flight distance from Chiang Rai International Airport (CEI) in Chiang Rai, Thailand to San Diego International Airport (SAN) in San Diego, United States is 12,956 kilometers (8,051 miles / 6,996 nautical miles). The estimated flight time for this route is approximately 16h, flying northeast at a heading of 35°.

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

Time zone information: When it's 12:36 in Chiang Rai, it's 21:36 in San Diego. With a 15-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 1,263 feet between the two airports. San Diego International Airport sits lower than Chiang Rai International Airport.

The return flight from San Diego (SAN) to Chiang Rai (CEI) follows a heading of 321° (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 Chiang Rai International Airport (CEI) and San Diego International Airport (SAN) detail pages, or use our flight duration calculator to compare other routes.