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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 PHP 1,409 and round-trip tickets from PHP 4,009.

      • CJJ 18:10
        18h
        1 stop
        USN 12:10
        Cheongju - Ulsan | Wed, Dec 10 | T'Way Air
        USN 12:50
        10h 15m
        1 stop
        CJJ 23:05
        Ulsan - Cheongju | Wed, Dec 17 | Jin Air
        PHP 4,009 PHP 6,115
        34% OFF
        34% OFF
        PHP 6,115 PHP 4,009
      • CJJ 19:35
        16h 35m
        1 stop
        USN 12:10
        Cheongju - Ulsan | Wed, Dec 10 | Eastar Jet
        USN 12:50
        10h 5m
        1 stop
        CJJ 22:55
        Ulsan - Cheongju | Wed, Dec 17 | Jin Air
        PHP 4,017 PHP 6,115
        34% OFF
        34% OFF
        PHP 6,115 PHP 4,017
      • CJJ 17:45
        18h 25m
        1 stop
        USN 12:10
        Cheongju - Ulsan | Wed, Dec 10 | Jin Air
        USN 12:50
        4h 20m
        1 stop
        CJJ 17:10
        Ulsan - Cheongju | Wed, Dec 17 | Jin Air
        PHP 4,755 PHP 6,115
        22% OFF
        22% OFF
        PHP 6,115 PHP 4,755
      • CJJ 19:15
        16h 55m
        1 stop
        USN 12:10
        Cheongju - Ulsan | Wed, Dec 10 | Jeju Air
        USN 12:50
        5h 50m
        1 stop
        CJJ 18:40
        Ulsan - Cheongju | Wed, Dec 17 | Jin Air
        PHP 4,789
        22% OFF
        PHP 6,115 PHP 4,789
      • 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
        PHP 5,258
        14% OFF
        PHP 6,115 PHP 5,258
      • 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
        PHP 5,267
        14% OFF
        PHP 6,115 PHP 5,267
      • 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
        PHP 5,275
        14% OFF
        PHP 6,115 PHP 5,275
      • 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
        PHP 5,418
        11% OFF
        PHP 6,115 PHP 5,418
      • 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
        PHP 5,418
        11% OFF
        PHP 6,115 PHP 5,418
      • 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
        PHP 5,443
        11% OFF
        PHP 6,115 PHP 5,443
      • CJJ 13:00
        17h 25m
        1 stop
        USN Invalid Date
        Cheongju - Ulsan | Fri, Dec 12 | Normal Airline
        USN 15:00
        6h
        Direct
        CJJ 16:00
        Ulsan - Cheongju | Sun, Dec 14 | Normal Airline
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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 details for Cheongju to Ulsan

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

Cheapest one-way flight pricePHP 1,409
Cheapest round-trip ticket pricePHP 4,009
Off-season for travelSeptember
Peak season for travelJuly
Flight distance207.98 km

Find the best 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 PHP 1,971.

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

  • What are the cheapest flights from Cheongju to Ulsan (CJJ-USN)?

    Based on Trip.com data, Aero K Airlines offers one-way fares as low as PHP 1,409 on Cheapest nonstop routes (e.g. CJJ to USN on Wed, Dec 10), while T'Way Air offers Cheapest nonstop round-trips from PHP 4,009 departing on Wed, Dec 10 and returning on Wed, Dec 17.
  • 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 10, with one-way flights priced at just PHP 1,409.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Aero K Airlines.
    · 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 PHP 4,008.
  • The time difference between Ulsan and Cheongju is 0h.
  • 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.