The flight distance from Sydney Kingsford Smith International Airport (SYD) in Sydney, Australia to Udon Thani Airport (UTH) in Udon Thani, Thailand is 7,670 kilometers (4,766 miles / 4,141 nautical miles). The estimated flight time for this route is approximately 10h, flying northwest at a heading of 310°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

This is an international route connecting Australia with Thailand. It is an intercontinental flight between Oceania and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 00:22 in Sydney, it's 20:22 in Udon Thani. The 4-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Udon Thani (UTH) to Sydney (SYD) follows a heading of 138° (southeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Sydney Kingsford Smith International Airport (SYD) and Udon Thani Airport (UTH) detail pages, or use our flight duration calculator to compare other routes.