Cheap Flights Ulsan to Jeju City from £23

Flight FAQs

• Which airlines offer the cheapest flights from Ulsan to Jeju City?

  Based on Trip.com data, Air Busan offers Cheapest nonstop one-way flights from £23 (for example, USN–CJU on Sat, Nov 7). For a Cheapest nonstop return flight, Air Busan offers fares from £47, departing on Sat, Sep 12 and returning on Mon, Sep 14.

• Which airlines offer direct flights from Ulsan to Jeju City?

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

• How long is a flight from Ulsan to Jeju City?

  A flight from Ulsan (USN) to Jeju City (CJU) takes an average of 1 hour 10 minutes.

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

  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 Jeju City 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 from Ulsan to Jeju City each week?

  On average, 21 direct flights operate each week between Ulsan and Jeju City. See below the schedules of the main airlines serving this route:
  Air Busan: S/M/T/W/T/F/S – BX8301 (departure at 11:38)

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

  Here are some tips for finding the best flight deals from Ulsan to Jeju City on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Sat, Nov 7, with one-way fares from just £23.
  · Compare airlines. Air Busan currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Avoid peak season or book early. January is generally the busiest month for travel to Jeju City.
  · Get exclusive promo codes on the Trip.com app.

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

  The cheapest month to book a flight from Ulsan to Jeju City is usually September, when demand is lower.

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

  After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Ulsan to Jeju City on September 16, 2026 with Air Busan, with prices starting at £20.

• Which airports should you choose for flights from Ulsan to Jeju City?

  Flights to Jeju City can arrive at: Jeju International Airport (CJU). The most common route connects Ulsan Airport and Jeju International Airport (USN–CJU).

• What is the time difference between Ulsan and Jeju City?

  The time difference between Jeju City and Ulsan is 0m.

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

  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.

• What is the average price of a one-way flight from Ulsan to Jeju City?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Ulsan to Jeju City is £53. Fares vary by travel date, airline and availability.

• What is the average price of a return flight from Ulsan to Jeju City?

  Based on Trip.com data for flights departing in the next 30 days, the average return fare from Ulsan to Jeju City is £97. Fares vary by travel date, airline and availability.

• How do I book flights from Ulsan to Jeju City on Trip.com?

  Enter Ulsan and Jeju City, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

• Are there budget airlines on the Ulsan to Jeju City route?

  Air Busanare the most popular budget airlines flying from Ulsan to Jeju City. Check baggage, seat and payment fees before comparing the final price.