Cheap Flights from Jeju to Ulsan from $22

Frequently Asked Questions

• What are the cheapest flights from Jeju to Ulsan (CJU-USN)?

  Based on Trip.com data, Air Busan offers one-way fares as low as $22 on Cheapest nonstop routes (e.g. CJU to USN on Tue, Feb 17), while Jin Air offers Cheapest nonstop round-trips from $55 departing on Fri, Feb 20 and returning on Tue, Feb 24.

• Which airlines offer direct flights from Jeju to Ulsan?

  At the moment, you can catch a nonstop flight from Jeju to Ulsan with the following airlines, including: Jin Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long does it take to fly from Jeju (CJU) to Ulsan (USN) and what is the distance?

  It takes around 1 hour 8 minutes to fly from Jeju (CJU) to Ulsan (USN).

• When is the best time to book flights from Jeju 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 Jeju 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 many flights are there per week from Jeju to Ulsan?

  Based on Trip.com data in the past 4 weeks, there is 49 flight per week flying from Jeju to Ulsan. You can check the weekly schedule for popular airlines on this route below: Jin Air: S/M/T/W/T/F/S -- LJ440 (11:16)

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

  To find best deals on flights from Jeju 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, Feb 17, with one-way flights priced at just $22.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Busan.
  · 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 are flight tickets from Jeju (CJU) to Ulsan (USN) the cheapest?

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

• Which upcoming date is cheapest to fly from Jeju to Ulsan on?

  After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Jeju to Ulsan on February 24, 2026 with Air Busan, with prices starting at $26.

• Which airports can I fly to for Ulsan from Jeju?

  You can land at any one of the following hubs in Ulsan, with Jeju International Airport to Ulsan Airport (CJU-USN) is by far the most common option on this route: Ulsan Airport (USN).

• Is there any time difference between Jeju and Ulsan?

  The time difference between Ulsan and Jeju is 0h.

• How do I change or cancel my ticket from Jeju to Ulsan?

  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.