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Flights from Cheongju to Ulsan

Find the cheapest flight options from Cheongju to Ulsan over the next three months. Book one-way tickets from 180 KZT and round-trip tickets from 627 KZT.

      • CJJ 19:35
        16h
        1 stop
        USN 11:35
        Cheongju - Ulsan | Thu, Dec 11 | Eastar Jet
        USN 12:50
        10h 5m
        1 stop
        CJJ 22:55
        Ulsan - Cheongju | Thu, Dec 18 | Jin Air
        627 KZT 804 KZT
        22% OFF
        22% OFF
        804 KZT 627 KZT
      • CJJ 20:10
        14h 35m
        1 stop
        USN 10:45
        Cheongju - Ulsan | Mon, Dec 15 | T'Way Air
        USN 15:50
        16h 50m
        1 stop
        CJJ 08:40
        Ulsan - Cheongju | Tue, Dec 16 | Korean Air
        628 KZT 804 KZT
        22% OFF
        22% OFF
        804 KZT 628 KZT
      • CJJ 19:35
        15h 10m
        1 stop
        USN 10:45
        Cheongju - Ulsan | Mon, Dec 15 | Eastar Jet
        USN 15:50
        16h 50m
        1 stop
        CJJ 08:40
        Ulsan - Cheongju | Tue, Dec 16 | Korean Air
        629 KZT 804 KZT
        22% OFF
        22% OFF
        804 KZT 629 KZT
      • CJJ 19:15
        15h 30m
        1 stop
        USN 10:45
        Cheongju - Ulsan | Mon, Dec 15 | Jeju Air
        USN 15:50
        16h 50m
        1 stop
        CJJ 08:40
        Ulsan - Cheongju | Tue, Dec 16 | Korean Air
        646 KZT
        20% OFF
        804 KZT 646 KZT
      • CJJ 17:45
        17h
        1 stop
        USN 10:45
        Cheongju - Ulsan | Mon, Dec 15 | Jin Air
        USN 15:50
        16h 50m
        1 stop
        CJJ 08:40
        Ulsan - Cheongju | Tue, Dec 16 | Korean Air
        646 KZT
        20% OFF
        804 KZT 646 KZT
      • CJJ 20:10
        15h 25m
        1 stop
        USN 11:35
        Cheongju - Ulsan | Thu, Dec 11 | T'Way Air
        USN 12:50
        10h 15m
        1 stop
        CJJ 23:05
        Ulsan - Cheongju | Thu, Dec 18 | Jin Air
        649 KZT
        19% OFF
        804 KZT 649 KZT
      • CJJ 06:50
        5h 20m
        1 stop
        USN 12:10
        Cheongju - Ulsan | Tue, Dec 16 | Eastar Jet
        USN 12:50
        10h 5m
        1 stop
        CJJ 22:55
        Ulsan - Cheongju | Wed, Dec 17 | Jin Air
        655 KZT
        18% OFF
        804 KZT 655 KZT
      • CJJ 17:45
        17h 50m
        1 stop
        USN 11:35
        Cheongju - Ulsan | Thu, Dec 11 | Jin Air
        USN 12:50
        4h 20m
        1 stop
        CJJ 17:10
        Ulsan - Cheongju | Thu, Dec 18 | Jin Air
        665 KZT
        17% OFF
        804 KZT 665 KZT
      • CJJ 19:15
        16h 20m
        1 stop
        USN 11:35
        Cheongju - Ulsan | Thu, Dec 11 | Jeju Air
        USN 12:50
        5h 50m
        1 stop
        CJJ 18:40
        Ulsan - Cheongju | Thu, Dec 18 | Jin Air
        717 KZT
        11% OFF
        804 KZT 717 KZT
      • CJJ 16:30
        18h 15m
        1 stop
        USN 10:45
        Cheongju - Ulsan | Mon, Dec 15 | Korean Air
        USN 15:50
        16h 50m
        1 stop
        CJJ 08:40
        Ulsan - Cheongju | Tue, Dec 16 | Korean Air
        723 KZT
        10% OFF
        804 KZT 723 KZT
      • CJJ 13:00
        17h 25m
        1 stop
        USN Invalid Date
        Cheongju - Ulsan | Sat, Dec 13 | Normal Airline
        USN 15:00
        6h
        Direct
        CJJ 16:00
        Ulsan - Cheongju | Mon, Dec 15 | Normal Airline
        Find More Flights
        Find More Flights
      • CJJ 20:10
        16h
        1 stop
        USN 12:10
        Cheongju - Ulsan | Wed, Dec 17 | T'Way Air
        180 KZT 553 KZT
        67% OFF
        67% OFF
        553 KZT 180 KZT
      • CJJ 19:35
        16h 35m
        1 stop
        USN 12:10
        Cheongju - Ulsan | Wed, Dec 17 | Eastar Jet
        235 KZT 553 KZT
        56% OFF
        56% OFF
        553 KZT 235 KZT
      • CJJ 20:10
        15h 25m
        1 stop
        USN 11:35
        Cheongju - Ulsan | Thu, Dec 11 | T'Way Air
        263 KZT 553 KZT
        52% OFF
        52% OFF
        553 KZT 263 KZT
      • CJJ 19:15
        16h 20m
        1 stop
        USN 11:35
        Cheongju - Ulsan | Thu, Dec 11 | Jeju Air
        265 KZT
        52% OFF
        553 KZT 265 KZT
      • CJJ 20:30
        15h 5m
        1 stop
        USN 11:35
        Cheongju - Ulsan | Thu, Dec 11 | Aero K Airlines
        278 KZT
        50% OFF
        553 KZT 278 KZT
      • CJJ 17:45
        17h 50m
        1 stop
        USN 11:35
        Cheongju - Ulsan | Thu, Dec 11 | Jin Air
        279 KZT
        49% OFF
        553 KZT 279 KZT
      • CJJ 19:15
        16h 55m
        1 stop
        USN 12:10
        Cheongju - Ulsan | Wed, Dec 17 | Jeju Air
        280 KZT
        49% OFF
        553 KZT 280 KZT
      • CJJ 20:10
        14h 35m
        1 stop
        USN 10:45
        Cheongju - Ulsan | Tue, Jan 27 | T'Way Air
        299 KZT
        46% OFF
        553 KZT 299 KZT
      • CJJ 19:35
        15h 10m
        1 stop
        USN 10:45
        Cheongju - Ulsan | Tue, Jan 27 | Eastar Jet
        303 KZT
        45% OFF
        553 KZT 303 KZT
      • CJJ 19:35
        16h
        1 stop
        USN 11:35
        Cheongju - Ulsan | Thu, Dec 11 | Eastar Jet
        497 KZT
        10% OFF
        553 KZT 497 KZT
      • CJJ 13:00
        17h 25m
        1 stop
        USN Invalid Date
        Cheongju - Ulsan | Sat, Dec 13 | Normal Airline
        Find More Flights
        Find More Flights

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

Flight Information for Cheongju to Ulsan Flights

The distance between Cheongju and Ulsan is 207.98km. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is September.

Cheapest one-way flight price180 KZT
Cheapest return ticket price627 KZT
Off-season travel monthSeptember
Peak season for travelJuly
Flight distance207.98km

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

The cheapest time for Cheongju to Ulsan flights: Dec 14 to Dec 21 — one way flight prices from 235 KZT.

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 Cheongju to Ulsan, calculated over the upcoming 10 weeks.

Flight FAQs

  • Which airlines offer the cheapest flights from Cheongju (CJJ) to Ulsan (USN)?

    Based on Trip.com data, T'Way Air offers one-way fares as low as 180 KZT on Cheapest nonstop routes (e.g. CJJ to USN on Wed, Dec 17), while Eastar Jet offers Cheapest nonstop round-trips from 627 KZT departing on Thu, Dec 11 and returning on Thu, Dec 18.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Cheongju 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 Cheongju 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 Wed, Dec 17, with one-way flights priced at just 180 KZT.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is T'Way 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 July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Cheongju 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 Cheongju to Ulsan on December 10, 2025 with T'Way Air, with prices starting at 478 KZT.
  • The time difference between Ulsan and Cheongju is 0h.
  • 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.