Hat Yai (HDY) to Udon Thani (UTH) flights
One airline flies nonstop from Hat Yai (HDY) to Udon Thani (UTH): Thai Lion Air. The two airports are 740 miles (1,191 km) apart. There are also 4 ways to fly it with one stop, through Bangkok, Bangkok and Phuket and more.
Airlines flying nonstop from HDY to UTH
- Thai Lion AirNot in an alliance

HDY to UTH with one stop
4 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Bangkok (BKK)Thai Vietjet Air and Thai Airways International the whole wayVZ
VZ
- Via Bangkok (DMK)Nok Air, Thai AirAsia and 1 more the whole wayDD

DD

- Via Phuket (HKT)Bangkok Airways, then Thai AirAsia


- Via Chiang Mai (CNX)Thai AirAsia the whole way
DD
HDY to UTH: common questions
Which airlines fly nonstop from HDY to UTH?
Thai Lion Air flies nonstop from Hat Yai (HDY) to Udon Thani (UTH).
How far is Hat Yai from Udon Thani by plane?
Hat Yai (HDY) and Udon Thani (UTH) are 740 miles (1,191 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
How many miles does HDY to UTH cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for HDY to UTH with taxes and fees.
Where can I connect between Hat Yai and Udon Thani?
The most direct connections are through Bangkok (BKK), Bangkok (DMK), Phuket (HKT) and Chiang Mai (CNX). On 3 of them the same airline flies both flights, for example Thai Vietjet Air through Bangkok.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.