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Flights from Hanoi to Ulsan

Find flight deals from Hanoi to Ulsan for the next 3 months. Book one way flights from THB 4,648 or round trip flights from THB 12,693.

      • HAN 1:45 AM
        29h 5m
        1 stop
        USN 8:50 AM
        Hanoi - Ulsan | Wed, Dec 17 | VietJet Air
        USN 9:30 AM
        26h
        1 stop
        HAN 9:30 AM
        Ulsan - Hanoi | Tue, Dec 23 | Korean Air
        THB 12,693 THB 20,020
        37% OFF
        37% OFF
        THB 20,020 THB 12,693
      • HAN 10:50 PM
        18h 50m
        1 stop
        USN 7:40 PM
        Hanoi - Ulsan | Fri, Dec 12 | VietJet Air
        USN 8:20 PM
        15h 10m
        1 stop
        HAN 9:30 AM
        Ulsan - Hanoi | Tue, Dec 16 | Korean Air
        THB 13,135 THB 20,020
        34% OFF
        34% OFF
        THB 20,020 THB 13,135
      • HAN 12:15 AM
        17h 25m
        1 stop
        USN 7:40 PM
        Hanoi - Ulsan | Sat, Dec 27 | T'Way Air
        USN 9:30 AM
        15h 45m
        1 stop
        HAN 11:15 PM
        Ulsan - Hanoi | Mon, Dec 29 | Korean Air
        THB 13,865 THB 20,020
        31% OFF
        31% OFF
        THB 20,020 THB 13,865
      • HAN 10:50 PM
        12h 55m
        1 stop
        USN 1:45 PM
        Hanoi - Ulsan | Wed, Dec 24 | VietJet Air
        USN 2:25 PM
        25h 45m
        1 stop
        HAN 2:10 PM
        Ulsan - Hanoi | Sun, Dec 28 | Jin Air
        THB 14,591
        27% OFF
        THB 20,020 THB 14,591
      • HAN 12:15 AM
        11h 30m
        1 stop
        USN 1:45 PM
        Hanoi - Ulsan | Thu, Jan 1 | T'Way Air
        USN 9:30 AM
        15h 45m
        1 stop
        HAN 11:15 PM
        Ulsan - Hanoi | Sun, Jan 4 | Korean Air
        THB 16,596
        17% OFF
        THB 20,020 THB 16,596
      • HAN 1:40 AM
        16h
        1 stop
        USN 7:40 PM
        Hanoi - Ulsan | Fri, Dec 12 | Jeju Air
        USN 9:30 AM
        17h 10m
        1 stop
        HAN 12:40 AM
        Ulsan - Hanoi | Sun, Dec 14 | Korean Air
        THB 17,223
        14% OFF
        THB 20,020 THB 17,223
      • HAN 1:40 AM
        16h
        1 stop
        USN 7:40 PM
        Hanoi - Ulsan | Thu, Jan 1 | Jeju Air
        USN 2:25 PM
        12h 15m
        1 stop
        HAN 12:40 AM
        Ulsan - Hanoi | Sun, Jan 4 | Korean Air
        THB 17,372
        13% OFF
        THB 20,020 THB 17,372
      • HAN 1:40 AM
        29h 10m
        1 stop
        USN 8:50 AM
        Hanoi - Ulsan | Wed, Dec 24 | Jeju Air
        USN 2:25 PM
        12h 15m
        1 stop
        HAN 12:40 AM
        Ulsan - Hanoi | Sun, Dec 28 | Korean Air
        THB 17,399
        13% OFF
        THB 20,020 THB 17,399
      • HAN 1:30 PM
        17h 20m
        1 stop
        USN 8:50 AM
        Hanoi - Ulsan | Fri, Jan 23 | Asiana Airlines
        USN 8:20 PM
        17h 50m
        1 stop
        HAN 12:10 PM
        Ulsan - Hanoi | Mon, Jan 26 | Korean Air
        THB 17,791
        11% OFF
        THB 20,020 THB 17,791
      • HAN 1:40 AM
        16h
        1 stop
        USN 7:40 PM
        Hanoi - Ulsan | Sat, Dec 27 | Jeju Air
        USN 2:25 PM
        12h 15m
        1 stop
        HAN 12:40 AM
        Ulsan - Hanoi | Mon, Dec 29 | Korean Air
        THB 17,818
        11% OFF
        THB 20,020 THB 17,818
      • HAN 1:00 PM
        17h 25m
        1 stop
        USN Invalid Date
        Hanoi - Ulsan | Fri, Dec 12 | Normal Airline
        USN 3:00 PM
        6h
        Nonstop
        HAN 4:00 PM
        Ulsan - Hanoi | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights
      • HAN 1:45 AM
        15h 55m
        1 stop
        USN 7:40 PM
        Hanoi - Ulsan | Tue, Jan 6 | VietJet Air
        THB 4,648 THB 7,329
        37% OFF
        37% OFF
        THB 7,329 THB 4,648
      • HAN 10:50 PM
        12h 55m
        1 stop
        USN 1:45 PM
        Hanoi - Ulsan | Fri, Dec 19 | VietJet Air
        THB 4,999 THB 7,329
        32% OFF
        32% OFF
        THB 7,329 THB 4,999
      • HAN 12:15 AM
        11h 30m
        1 stop
        USN 1:45 PM
        Hanoi - Ulsan | Sat, Dec 27 | T'Way Air
        THB 5,328 THB 7,329
        27% OFF
        27% OFF
        THB 7,329 THB 5,328
      • HAN 1:45 AM
        15h 55m
        1 stop
        USN 7:40 PM
        Hanoi - Ulsan | Wed, Jan 21 | VietJet Air
        THB 5,409
        26% OFF
        THB 7,329 THB 5,409
      • HAN 10:50 PM
        12h 55m
        1 stop
        USN 1:45 PM
        Hanoi - Ulsan | Thu, Dec 25 | VietJet Air
        THB 5,450
        26% OFF
        THB 7,329 THB 5,450
      • HAN 10:50 PM
        12h 55m
        1 stop
        USN 1:45 PM
        Hanoi - Ulsan | Tue, Dec 23 | VietJet Air
        THB 6,279
        14% OFF
        THB 7,329 THB 6,279
      • HAN 10:50 PM
        12h 55m
        1 stop
        USN 1:45 PM
        Hanoi - Ulsan | Wed, Dec 10 | VietJet Air
        THB 6,360
        13% OFF
        THB 7,329 THB 6,360
      • HAN 10:50 PM
        12h 55m
        1 stop
        USN 1:45 PM
        Hanoi - Ulsan | Sun, Dec 14 | VietJet Air
        THB 6,423
        12% OFF
        THB 7,329 THB 6,423
      • HAN 10:50 PM
        12h 55m
        1 stop
        USN 1:45 PM
        Hanoi - Ulsan | Sat, Dec 27 | VietJet Air
        THB 6,514
        11% OFF
        THB 7,329 THB 6,514
      • HAN 12:15 AM
        11h 30m
        1 stop
        USN 1:45 PM
        Hanoi - Ulsan | Fri, Dec 26 | T'Way Air
        THB 6,523
        11% OFF
        THB 7,329 THB 6,523
      • HAN 1:00 PM
        17h 25m
        1 stop
        USN Invalid Date
        Hanoi - Ulsan | Fri, Dec 12 | Normal Airline
        Find More Flights
        Find More Flights

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

Flying from Hanoi to Ulsan

The distance between Hanoi and Ulsan is approximately 2,790.57 km. Based on Trip.com's data travel demand peaks in January. The off-season for travel is September.

Cheapest one-way flight priceTHB 4,648
Cheapest round-trip ticket priceTHB 12,693
Off-season for travelSeptember
Peak season for travelJanuary
Flight distance2,790.57 km

When is the cheapest time to fly from Hanoi to Ulsan?

The cheapest time for Hanoi to Ulsan flights: Jan 4 to Jan 11 — one way flight prices from THB 4,647.

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 Hanoi to Ulsan, calculated over the upcoming 10 weeks.

Frequently Asked Questions

  • What are the cheapest flights from Hanoi to Ulsan (HAN-USN)?

    Based on Trip.com data, VietJet Air offers one-way fares as low as THB 4,648 on Cheapest nonstop routes (e.g. HAN to USN on Tue, Jan 6), while VietJet Air offers Cheapest nonstop round-trips from THB 12,693 departing on Wed, Dec 17 and returning on Tue, Dec 23.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Hanoi to Ulsan 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 Hanoi to Ulsan, 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, Jan 6, with one-way flights priced at just THB 4,648.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is VietJet Air.
    · 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 Ulsan travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Hanoi to Ulsan is September, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Hanoi to Ulsan on December 17, 2025 with VietJet Air, with prices starting at THB 12,692.
  • The time difference between Ulsan and Hanoi 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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