Cheap Flights from Hanoi to Ulsan from € 126

Flight FAQs

• Which airlines offer the cheapest flights from Hanoi (HAN) to Ulsan (USN)?

  Based on Trip.com data, VietJet Air offers one-way fares as low as € 126 on Cheapest nonstop routes (e.g. HAN to USN on Tue, Jan 6), while VietJet Air offers Cheapest nonstop round-trips from € 342 departing on Wed, Dec 17 and returning on Tue, Dec 23.

• When is the best time to book flights from Hanoi to Ulsan?

  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.

• How can I find the best deals on flights from Hanoi to Ulsan?

  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 € 126.
  · 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.

• When is the best time to book a flight from Hanoi to Ulsan to get the best price?

  The cheapest months to fly from Hanoi to Ulsan is September, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from Hanoi to Ulsan?

  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 € 341.

• What is the time difference between Hanoi and Ulsan?

  The time difference between Ulsan and Hanoi is 2h.

• How can I change or cancel my flight ticket from Hanoi to Ulsan?

  Tickets can only be changed or cancelled 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.