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Flights from Ulsan to Udon Thani

Search cheap flights from Ulsan to Udon Thani in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at HK$2,617, and round-trip tickets start at HK$5,754.

      • USN 09:30
        25h
        2 stops
        UTH 08:30
        Ulsan - Udon Thani | Sat, Dec 20 | Korean Air
        UTH 08:40
        22h 10m
        2 stops
        USN 08:50
        Udon Thani - Ulsan | Fri, Dec 26 | Thai AirAsia
        HK$5,754 HK$9,420
        39% OFF
        39% OFF
        HK$9,420 HK$5,754
      • USN 14:25
        32h
        2 stops
        UTH 20:25
        Ulsan - Udon Thani | Mon, Dec 29 | Jin Air
        UTH 14:10
        21h 35m
        2 stops
        USN 13:45
        Udon Thani - Ulsan | Sun, Jan 4 | Thai Airways
        HK$6,600 HK$9,420
        30% OFF
        30% OFF
        HK$9,420 HK$6,600
      • USN 14:25
        32h
        2 stops
        UTH 20:25
        Ulsan - Udon Thani | Mon, Dec 29 | Korean Air
        UTH 14:10
        27h 30m
        2 stops
        USN 19:40
        Udon Thani - Ulsan | Sun, Jan 4 | Thai Airways
        HK$6,703 HK$9,420
        28% OFF
        28% OFF
        HK$9,420 HK$6,703
      • USN 14:25
        32h
        2 stops
        UTH 20:25
        Ulsan - Udon Thani | Tue, Dec 30 | Jin Air
        UTH 14:10
        21h 35m
        2 stops
        USN 13:45
        Udon Thani - Ulsan | Sun, Jan 4 | Thai Airways
        HK$6,773
        28% OFF
        HK$9,420 HK$6,773
      • USN 14:25
        32h
        2 stops
        UTH 20:25
        Ulsan - Udon Thani | Tue, Dec 30 | Korean Air
        UTH 14:10
        27h 30m
        2 stops
        USN 19:40
        Udon Thani - Ulsan | Sun, Jan 4 | Thai Airways
        HK$6,877
        27% OFF
        HK$9,420 HK$6,877
      • USN 13:00
        17h 25m
        1 stop
        UTH Invalid Date
        Ulsan - Udon Thani | Sun, Dec 14 | Normal Airline
        UTH 15:00
        6h
        Nonstop
        USN 16:00
        Udon Thani - Ulsan | Tue, Dec 16 | Normal Airline
        Find More Flights
        Find More Flights
      • USN 14:25
        32h
        2 stops
        UTH 20:25
        Ulsan - Udon Thani | Sat, Dec 20 | Jin Air
        HK$2,617 HK$4,976
        47% OFF
        47% OFF
        HK$4,976 HK$2,617
      • USN 20:20
        26h 5m
        2 stops
        UTH 20:25
        Ulsan - Udon Thani | Sat, Dec 20 | Korean Air
        HK$2,713 HK$4,976
        45% OFF
        45% OFF
        HK$4,976 HK$2,713
      • USN 14:25
        32h
        2 stops
        UTH 20:25
        Ulsan - Udon Thani | Mon, Dec 29 | Jin Air
        HK$3,461 HK$4,976
        30% OFF
        30% OFF
        HK$4,976 HK$3,461
      • USN 14:25
        32h
        2 stops
        UTH 20:25
        Ulsan - Udon Thani | Mon, Dec 29 | Korean Air
        HK$3,586
        28% OFF
        HK$4,976 HK$3,586
      • USN 14:25
        32h
        2 stops
        UTH 20:25
        Ulsan - Udon Thani | Thu, Dec 25 | Jin Air
        HK$3,632
        27% OFF
        HK$4,976 HK$3,632
      • USN 09:30
        25h
        2 stops
        UTH 08:30
        Ulsan - Udon Thani | Thu, Dec 25 | Korean Air
        HK$3,633
        27% OFF
        HK$4,976 HK$3,633
      • USN 13:00
        17h 25m
        1 stop
        UTH Invalid Date
        Ulsan - Udon Thani | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights

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

Ulsan to Udon Thani Flight Details

The distance between Ulsan and Udon Thani is about 3,310.38 km. Based on Trip.com's latest data, travel demand is highest in December. The off-season for travel is August.

Cheapest one-way flight priceHK$2,617
Cheapest return ticket priceHK$5,754
Cheapest monthAugust
Peak season for travelDecember
Flight distance3,310.38 km

When is the cheapest time to book flights from Ulsan to Udon Thani?

The cheapest time to fly from Ulsan to Udon Thani: Dec 14 to Dec 21 — one-way prices start at HK$2,617.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from Ulsan to Udon Thani (USN-UTH)?

    Based on Trip.com data, Jin Air offers one-way fares as low as HK$2,617 on Cheapest nonstop routes (e.g. USN to UTH on Sat, Dec 20), while Korean Air offers Cheapest nonstop round-trips from HK$5,754 departing on Sat, Dec 20 and returning on Fri, Dec 26.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Ulsan 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 Ulsan 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 Sat, Dec 20, with one-way flights priced at just HK$2,617.
    · 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 December.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Ulsan to Udon Thani is August, when demand for travel is lower.
  • The time difference between Udon Thani and Ulsan is 2h.
  • 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.

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