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Search round tripsDomestic route HDY to UTH
Hat Yai to Udon Thani flights: the deep south to Isan without Bangkok
Thai Lion Air flies Hat Yai to Udon Thani nonstop, a 1,191 km run of about two hours that skips the change in Bangkok. It does not run daily.
Fares
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Nonstop, Thai Lion AirEconomy
HDY
Hat Yai
UTH
Udon Thani
- Distance
- 1,191 km
Return
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Looking for Hat Yai to Udon Thani air tickets and not sure what to pay? Thai Lion Air flies this route, and fares change with demand, so the same seat can cost noticeably more close to a holiday weekend. Put your dates in the search above to compare today's fares and book with bookingMentor.
Everything you should know
Hat Yai to Udon Thani flight guide
Flying from Hat Yai to Udon Thani
In short
Thai Lion Air is the only airline flying nonstop from Hat Yai (HDY) to Udon Thani (UTH). The two airports are about 1,191 km apart, close to the full length of the country from the lower south to the upper North-East, and the flight takes about two hours.
The route is a small one by Thai standards. Hat Yai is a Thai Lion Air base, and the airline flies this sector on selected days rather than every day, so start with the dates: put them into the search above and you will see straight away whether the nonstop suits you. If it does not, the fallback is two flights via Don Mueang in Bangkok, which both cities have in good supply.
Door scans and midnight closing at Hat Yai airport
Hat Yai International Airport is 10 to 12 km south-west of the city and, unusually, is not a 24-hour building: it opens at 06:00 and closes at midnight. Airports of Thailand asks for at least two hours before departure. Every bag is scanned at the door, and queues build there on Friday and Sunday evenings. The city minibus and the airport vans run between the centre and the terminal, and the taxi trip takes 20 to 30 minutes. Domestic gates and the Coral Executive Lounge are on level 2.
Thai Lion Air fare types and bag allowances
Check what your Thai Lion Air fare includes before you pay. Bag allowances differ between fare types, and adding weight at the airport costs more than adding it online.
Shared minibus and Nong Khai vans at Udon arrivals
The Udon Thani airport sits 3 to 4 km from the city centre. A shared minibus counter to the right of the arrivals exit drops passengers at their own addresses, and vans to Nong Khai and the Friendship Bridge into Laos leave from the counter straight ahead.
Seasons at both ends
Hat Yai's heaviest rain usually falls from October to December, which can slow the roads to the airport. Udon is at its best in the cool, dry months from November to February, when the Horticultural Expo also runs (1 November 2026 to 14 March 2027).
About Thai Lion Air
Thai Lion Air is a Thai low-cost airline linked to Indonesia's Lion Air Group. It started on 4 December 2013 with a flight from Bangkok to Chiang Mai and has its head office in Don Mueang district. Its fleet in August 2025 was 28 Boeing 737s: 20 of the 737-800 and eight of the longer 737-900ER. Don Mueang and Taipei's Taoyuan airport are its operating bases.
Besides this sector, Thai Lion Air flies from Udon Thani to Don Mueang and to U-Tapao for Pattaya, and from Hat Yai to Don Mueang.
The airports at Hat Yai and Udon Thani
Hat Yai International Airport is run by Airports of Thailand and handled 3,305,661 passengers in 2025. It was designed for 2.5 million a year and passed 4.5 million in 2018, and an expansion is planned to raise capacity above 10 million by 2030. The runway is 3,150 m long, and road access is via Highway 4135, Sanambin Panij Road. Traffic has held steady at around three million for several years: 3,122,124 in 2023 and 3,098,213 in 2024.
Udon Thani International Airport opened in 1932 and is owned by the Royal Thai Air Force. During the Vietnam War it was Udorn Royal Thai Air Force Base, a front-line United States base and Air America's Asian headquarters. The air force's Wing 23 still flies from it. The runway is 3,048 m long, and passenger numbers reached 2,012,155 in 2025.
Fact-checked by the bookingMentor Travel Desk
Reviewed · Updated when rules or prices change
We check practical details such as entry rules, seasons and costs against official government and tourism sources.
Hat Yai to Udon Thani flights at a glance
Thai Lion Air flies nonstop from Hat Yai (HDY) to Udon Thani (UTH). The route covers about 1,191 km and the flight takes about two hours; it does not operate every day.
| Flight time | 2h 00m nonstop |
|---|---|
| Best time to go | November to February |
| Distance | 1,191 km |
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Airlines flying Hat Yai to Udon Thani
Thai Lion Air is the only airline on the route and flies it from its Hat Yai base on selected days of the week.
Bag allowances depend on the fare type you buy. Check the inclusions before paying and add any extra weight online.
Departure and arrival airports
HDY Hat Yai International Airport
- Codes
- IATA HDY, ICAO VTSS
- Location
- Khlong Hoi Khong, Songkhla, 10 to 12 km south-west of central Hat Yai
- Hours
- 06:00 to midnight; closed overnight
- Getting there
- City minibus, airport van or taxi, 20 to 30 minutes from the centre
- Check-in
- At least two hours before departure; bags are scanned at the door
UTH Udon Thani International Airport
- Codes
- IATA UTH, ICAO VTUD
- Location
- 3 to 4 km from Udon Thani city centre
- Into town
- Shared minibus to your address, Grab or taxi, 10 to 20 minutes
- Onward
- Vans to Nong Khai and the Friendship Bridge, about 1 hour
How to book Hat Yai to Udon Thani for less
What to sort out before flying this long domestic route.
2 hnonstop flight time
Start with the dates
The nonstop does not run every day. Check your dates first, and if they do not match, compare it with a connection through Don Mueang, which both cities serve many times a day.
06:00HDY terminal opens
Mind Hat Yai's opening hours
The building is closed from midnight to 06:00. For an early departure, stay in town or near the airport rather than planning to wait inside.
1 hrUdon airport to Nong Khai
Take the first Nong Khai van
If Laos is your goal, buy the van seat at the counter in UTH arrivals. Reaching the Friendship Bridge early leaves time for the Lao visa on arrival.
Flight, train or bus to Udon Thani
Overland, Hat Yai to Udon Thani means changing in Bangkok and spending well over a day on trains or buses. Even the connection by air through Don Mueang is far quicker.
| Mode | Journey time | Total trip time | One-way fare | Operators and timings |
|---|---|---|---|---|
| Flight (nonstop) | About 2 hours | About 4 to 5 hours with airport time | Search fares | Thai Lion Air |
| Flights via Bangkok | Two flights with a change at Don Mueang | Most of a day | Search fares | Thai Lion Air |
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Frequently Asked Questions (FAQs)
Getting there
Yes. Thai Lion Air flies the route nonstop, though not every day of the week. Search your dates to see which days it operates.
About two hours. The airports are around 1,191 km apart, making this one of the longest domestic nonstops in Thailand that does not touch Bangkok.
No. The terminal closes at midnight and reopens at 06:00. Stay in central Hat Yai or at a hotel near the airport.
The city minibus runs between Hat Yai Bus Terminal and the airport from early morning to late evening, the airport vans serve Central Festival, Lee Garden and Kim Yong Market, and a taxi takes 20 to 30 minutes.
The airport is just 3 to 4 km from the centre. The shared minibus, Grab or a taxi covers most of the city in 10 to 20 minutes.
Heavy rain from about October to December can slow the roads to the airport more than the flights themselves. Leave home earlier than usual on wet days.
General
Fly via Bangkok instead. Thai AirAsia, Nok Air and Thai Lion Air all link Hat Yai and Udon Thani with Don Mueang, so a same-day connection is usually possible.
Yes, The Coral Executive Lounge in domestic departures on level 2, near gates 4 to 6. It accepts walk-in guests when there is space and several lounge memberships.
Yes. Vans from the counter in arrivals run to the Thai side of the Friendship Bridge in about an hour, and a shuttle bus crosses to the Lao side. Keep your passport in your hand luggage.
What's included
It depends on the fare type. Read the inclusions before paying and buy any extra weight online, which costs less than at the check-in desk.
Visa & documents
It is a domestic flight, so Thai nationals can use their ID card. Foreign visitors should carry their passport, as staff check ID against the boarding pass before security.
