Cheap Flights from Jeju City to Seoul from $19

Frequently Asked Questions

• What are the cheapest flights from Jeju City to Seoul (CJU-SEL)?

  Based on Trip.com data, Trinity Airways offers one-way fares as low as $19 on Cheapest nonstop routes (e.g. CJU to GMP on Thu, Oct 1), while Air Seoul offers Cheapest nonstop round-trips from $37 departing on Thu, Sep 17 and returning on Sun, Sep 20.

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

  At the moment, you can catch a nonstop flight from Jeju City to Seoul with the following airlines, including: Trinity Airways Jeju Air Eastar Jet Jin Air Korean 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 City (CJU) to Seoul (SEL) and what is the distance?

  It takes around 1 hour 15 minutes to fly from Jeju City (CJU) to Seoul (SEL).

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

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Jeju City to Seoul 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 City to Seoul?

  Based on Trip.com data in the past 4 weeks, there is 425 flight per week flying from Jeju City to Seoul. You can check the weekly schedule for popular airlines on this route below: Jeju Air: S/M/T/W/T/F/S -- 7C158 (20:33) Korean Air: S/M/T/W/T/F/S -- KE1136 (08:45) Asiana Airlines: S/M/T/W/T/F/S -- OZ8900 (06:35)

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

  To find best deals on flights from Jeju City to Seoul, 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 Thu, Oct 1, with one-way flights priced at just $19.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Trinity Airways.
  · 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 Seoul travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Jeju City (CJU) to Seoul (SEL) the cheapest?

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

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

  After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Jeju City to Seoul on September 17, 2026 with Trinity Airways, with prices starting at $8.

• Which airports can I fly into Seoul from Jeju City?

  You can arrive at any of the following airports in Seoul: Incheon International Airport (ICN), and Gimpo International Airport (GMP). Flights from Jeju International Airport to Gimpo International Airport (CJU-GMP) are by far the most popular option for this route.

• Is there any time difference between Jeju City and Seoul?

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

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

  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.

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

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Jeju City to Seoul is $90. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from Jeju City to Seoul?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Jeju City to Seoul is $111. The final price depends on the outbound and return dates, airline and fare conditions.

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

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

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

  Trinity Airways, Eastar Jet and Jeju Airare the most popular budget airlines flying from Jeju City to Seoul. Check baggage, seat and payment fees before comparing the final price.