Are there nonstop flights from Kuala Lumpur (KUL) to Udon Thani (UTH)?

No. The fastest connection is via Hat Yai, about 2h 58m of total flying time.

What is the fastest connection from Kuala Lumpur (KUL) to Udon Thani (UTH)?

via Hat Yai ≈ 2h 58m, via Bangkok ≈ 2h 59m, via Bangkok ≈ 3h (estimated flying time, excluding layovers).

from 15,000 ANA miles (economy, one way, based on the published award charts).

Kuala Lumpur International Airport (KUL) to Udon Thani International Airport (UTH)・1,632 km

No nonstop flights. The fastest connection is via Hat Yai (HDY), about 2h 58m of flying time (layover not included).

With milesANA 15,000 miles+ (via BKK)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

5 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.