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Flights from Hong Kong to Udon Thani

Find the cheapest flight options from Hong Kong to Udon Thani over the next three months. Book one-way tickets from US$91 and round-trip tickets from US$196.

      • HKG 14:20
        7h 45m
        1 stop
        UTH 21:05
        Hong Kong - Udon Thani | Sun, Jan 18 | Thai Lion Air
        UTH 19:40
        16h 25m
        1 stop
        HKG 13:05
        Udon Thani - Hong Kong | Mon, Jan 19 | Thai AirAsia
        US$196 US$241
        19% OFF
        19% OFF
        US$241 US$196
      • HKG 14:20
        7h 45m
        1 stop
        UTH 21:05
        Hong Kong - Udon Thani | Wed, Jan 7 | Thai Lion Air
        UTH 16:15
        19h 50m
        1 stop
        HKG 13:05
        Udon Thani - Hong Kong | Sun, Jan 11 | Thai AirAsia
        US$203 US$241
        16% OFF
        16% OFF
        US$241 US$203
      • HKG 14:20
        6h 35m
        1 stop
        UTH 19:55
        Hong Kong - Udon Thani | Mon, Jan 5 | Thai Lion Air
        UTH 09:40
        26h 25m
        1 stop
        HKG 13:05
        Udon Thani - Hong Kong | Sun, Jan 11 | Thai Lion Air
        US$204 US$241
        15% OFF
        15% OFF
        US$241 US$204
      • HKG 13:30
        7h
        1 stop
        UTH 19:30
        Hong Kong - Udon Thani | Thu, Jan 22 | HK Express
        UTH 08:40
        10h 40m
        1 stop
        HKG 20:20
        Udon Thani - Hong Kong | Thu, Jan 29 | Thai AirAsia
        US$207
        14% OFF
        US$241 US$207
      • HKG 07:50
        13h 5m
        1 stop
        UTH 19:55
        Hong Kong - Udon Thani | Tue, Jan 6 | HK Express
        UTH 20:35
        22h 45m
        1 stop
        HKG 20:20
        Udon Thani - Hong Kong | Mon, Jan 12 | Thai Lion Air
        US$209
        13% OFF
        US$241 US$209
      • HKG 07:50
        11h 10m
        1 stop
        UTH 18:00
        Hong Kong - Udon Thani | Mon, Jan 19 | HK Express
        UTH 10:10
        9h 10m
        1 stop
        HKG 20:20
        Udon Thani - Hong Kong | Sat, Jan 24 | Thai Vietjet Air
        US$210
        13% OFF
        US$241 US$210
      • HKG 14:20
        7h 45m
        1 stop
        UTH 21:05
        Hong Kong - Udon Thani | Tue, Jan 6 | Thai Lion Air
        UTH 21:35
        14h 30m
        1 stop
        HKG 13:05
        Udon Thani - Hong Kong | Mon, Jan 12 | Thai AirAsia
        US$211
        12% OFF
        US$241 US$211
      • HKG 07:50
        12h 40m
        1 stop
        UTH 19:30
        Hong Kong - Udon Thani | Wed, Jan 7 | HK Express
        UTH 12:15
        25h 25m
        1 stop
        HKG 14:40
        Udon Thani - Hong Kong | Sun, Jan 11 | Thai AirAsia
        US$212
        12% OFF
        US$241 US$212
      • HKG 07:50
        13h 5m
        1 stop
        UTH 19:55
        Hong Kong - Udon Thani | Sun, Jan 18 | HK Express
        UTH 09:40
        9h 40m
        1 stop
        HKG 20:20
        Udon Thani - Hong Kong | Fri, Jan 23 | Thai Lion Air
        US$213
        12% OFF
        US$241 US$213
      • HKG 07:50
        12h 10m
        1 stop
        UTH 19:00
        Hong Kong - Udon Thani | Wed, Dec 17 | HK Express
        UTH 09:10
        13h 35m
        1 stop
        HKG 23:45
        Udon Thani - Hong Kong | Sun, Dec 21 | Thai AirAsia
        US$214
        11% OFF
        US$241 US$214
      • HKG 13:00
        17h 25m
        1 stop
        UTH Invalid Date
        Hong Kong - Udon Thani | Fri, Dec 12 | Normal Airline
        UTH 15:00
        6h
        Direct
        HKG 16:00
        Udon Thani - Hong Kong | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights
      • HKG 16:55
        26h 5m
        1 stop
        UTH 18:00
        Hong Kong - Udon Thani | Tue, Feb 3 | HK Express
        US$91 US$125
        27% OFF
        27% OFF
        US$125 US$91
      • HKG 20:10
        22h 50m
        1 stop
        UTH 18:00
        Hong Kong - Udon Thani | Tue, Feb 3 | Thai AirAsia
        US$97 US$125
        23% OFF
        23% OFF
        US$125 US$97
      • HKG 07:50
        26h 50m
        1 stop
        UTH 09:40
        Hong Kong - Udon Thani | Tue, Jan 13 | HK Express
        US$101 US$125
        20% OFF
        20% OFF
        US$125 US$101
      • HKG 14:20
        19h 40m
        1 stop
        UTH 09:00
        Hong Kong - Udon Thani | Tue, Jan 13 | Thai Lion Air
        US$105
        16% OFF
        US$125 US$105
      • HKG 14:20
        22h 55m
        1 stop
        UTH 12:15
        Hong Kong - Udon Thani | Tue, Feb 3 | Thai Lion Air
        US$107
        15% OFF
        US$125 US$107
      • HKG 14:20
        22h 55m
        1 stop
        UTH 12:15
        Hong Kong - Udon Thani | Wed, Feb 4 | Thai Lion Air
        US$110
        12% OFF
        US$125 US$110
      • HKG 14:20
        22h 55m
        1 stop
        UTH 12:15
        Hong Kong - Udon Thani | Sat, Jan 24 | Thai Lion Air
        US$111
        11% OFF
        US$125 US$111
      • HKG 14:20
        22h 55m
        1 stop
        UTH 12:15
        Hong Kong - Udon Thani | Tue, Jan 27 | Thai Lion Air
        US$111
        11% OFF
        US$125 US$111
      • HKG 07:50
        25h 20m
        1 stop
        UTH 08:10
        Hong Kong - Udon Thani | Tue, Jan 20 | HK Express
        US$111
        11% OFF
        US$125 US$111
      • HKG 14:20
        26h 25m
        1 stop
        UTH 15:45
        Hong Kong - Udon Thani | Wed, Jan 21 | Thai Lion Air
        US$111
        11% OFF
        US$125 US$111
      • HKG 13:00
        17h 25m
        1 stop
        UTH Invalid Date
        Hong Kong - Udon Thani | Fri, Dec 12 | Normal Airline
        Find More Flights
        Find More Flights

Displayed flight fares from Hong Kong to Udon Thani are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for Hong Kong to Udon Thani

The distance between Hong Kong and Udon Thani is 1,313.44 km. Based on Trip.com's data, travel demand peaks in January. The off-season for travel is October.

Cheapest one-way flight priceUS$91
Cheapest round-trip ticket priceUS$196
Off-season for travelOctober
Peak season for travelJanuary
Flight distance1,313.44 km

Find the best time to fly from Hong Kong to Udon Thani

The cheapest time for Hong Kong to Udon Thani flights: Feb 1 to Feb 8 — one way flight prices from US$91.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Hong Kong to Udon Thani, calculated over the upcoming 10 weeks.

Flight FAQs

  • What are the cheapest flights from Hong Kong to Udon Thani (HKG-UTH)?

    Based on Trip.com data, HK Express offers one-way fares as low as US$91 on Cheapest nonstop routes (e.g. HKG to UTH on Tue, Feb 3), while Thai Lion Air offers Cheapest nonstop round-trips from US$196 departing on Sun, Jan 18 and returning on Mon, Jan 19.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Hong Kong to Udon Thani is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Hong Kong to Udon Thani, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Feb 3, with one-way flights priced at just US$91.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is HK Express.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Udon Thani travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Hong Kong to Udon Thani is October, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Hong Kong to Udon Thani on December 17, 2025 with HK Express, with prices starting at US$213.
  • The time difference between Udon Thani and Hong Kong is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.