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Flights from Cheongju to Ontario

Find flight deals from Cheongju to Ontario for the next 3 months. Book one way flights from MXN10,275 or round trip flights from MXN18,665.

      • CJJ 16:10
        17h 40m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Wed, Dec 17 | Aero K Airlines
        ONT 22:40
        30h 30m
        1 stop
        CJJ 22:10
        Ontario - Cheongju | Wed, Dec 24 | China Airlines
        MXN18,665 MXN24,813
        25% OFF
        25% OFF
        MXN24,813 MXN18,665
      • CJJ 16:10
        17h 40m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Fri, Dec 19 | Aero K Airlines
        ONT 22:40
        30h 30m
        1 stop
        CJJ 22:10
        Ontario - Cheongju | Sat, Dec 27 | China Airlines
        MXN19,360 MXN24,813
        22% OFF
        22% OFF
        MXN24,813 MXN19,360
      • CJJ 16:10
        17h 40m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Thu, Dec 25 | Aero K Airlines
        ONT 22:50
        30h 20m
        1 stop
        CJJ 22:10
        Ontario - Cheongju | Mon, Dec 29 | China Airlines
        MXN19,473 MXN24,813
        22% OFF
        22% OFF
        MXN24,813 MXN19,473
      • CJJ 08:45
        25h 5m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Fri, Dec 26 | Aero K Airlines
        ONT 22:50
        23h 10m
        1 stop
        CJJ 15:00
        Ontario - Cheongju | Sat, Jan 3 | China Airlines
        MXN19,910
        20% OFF
        MXN24,813 MXN19,910
      • CJJ 16:10
        17h 40m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Wed, Dec 24 | Aero K Airlines
        ONT 22:50
        30h 20m
        1 stop
        CJJ 22:10
        Ontario - Cheongju | Sun, Dec 28 | China Airlines
        MXN20,291
        18% OFF
        MXN24,813 MXN20,291
      • CJJ 08:45
        25h 5m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Sat, Dec 27 | Aero K Airlines
        ONT 22:50
        23h 10m
        1 stop
        CJJ 15:00
        Ontario - Cheongju | Sat, Jan 3 | China Airlines
        MXN20,425
        18% OFF
        MXN24,813 MXN20,425
      • CJJ 16:10
        17h 40m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Tue, Dec 23 | Aero K Airlines
        ONT 22:50
        30h 20m
        1 stop
        CJJ 22:10
        Ontario - Cheongju | Sun, Dec 28 | China Airlines
        MXN20,608
        17% OFF
        MXN24,813 MXN20,608
      • CJJ 08:45
        25h 5m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Thu, Dec 18 | Aero K Airlines
        ONT 22:40
        23h 20m
        1 stop
        CJJ 15:00
        Ontario - Cheongju | Wed, Dec 24 | China Airlines
        MXN20,834
        16% OFF
        MXN24,813 MXN20,834
      • CJJ 16:10
        17h 40m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Sat, Dec 20 | Aero K Airlines
        ONT 22:40
        30h 30m
        1 stop
        CJJ 22:10
        Ontario - Cheongju | Wed, Dec 24 | China Airlines
        MXN21,966
        11% OFF
        MXN24,813 MXN21,966
      • CJJ 08:45
        25h 5m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Mon, Dec 15 | Aero K Airlines
        ONT 22:40
        23h 20m
        1 stop
        CJJ 15:00
        Ontario - Cheongju | Mon, Dec 22 | China Airlines
        MXN22,332
        10% OFF
        MXN24,813 MXN22,332
      • CJJ 13:00
        17h 25m
        1 stop
        ONT Invalid Date
        Cheongju - Ontario | Sat, Dec 13 | Normal Airline
        ONT 15:00
        6h
        Nonstop
        CJJ 16:00
        Ontario - Cheongju | Mon, Dec 15 | Normal Airline
        Find More Flights
        Find More Flights
      • CJJ 16:10
        17h 40m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Tue, Dec 16 | Aero K Airlines
        MXN10,275 MXN13,283
        23% OFF
        23% OFF
        MXN13,283 MXN10,275
      • CJJ 23:45
        34h 5m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Sun, Dec 14 | Eastar Jet
        MXN10,606 MXN13,283
        20% OFF
        20% OFF
        MXN13,283 MXN10,606
      • CJJ 16:10
        17h 40m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Tue, Feb 3 | Aero K Airlines
        MXN11,206 MXN13,283
        16% OFF
        16% OFF
        MXN13,283 MXN11,206
      • CJJ 23:45
        34h 5m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Wed, Jan 21 | Eastar Jet
        MXN11,309
        15% OFF
        MXN13,283 MXN11,309
      • CJJ 23:45
        34h 5m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Wed, Jan 28 | Eastar Jet
        MXN11,401
        14% OFF
        MXN13,283 MXN11,401
      • CJJ 23:45
        34h 5m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Tue, Feb 3 | Eastar Jet
        MXN11,540
        13% OFF
        MXN13,283 MXN11,540
      • CJJ 16:10
        17h 40m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Wed, Jan 28 | Aero K Airlines
        MXN11,582
        13% OFF
        MXN13,283 MXN11,582
      • CJJ 16:10
        17h 40m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Wed, Feb 4 | Aero K Airlines
        MXN11,728
        12% OFF
        MXN13,283 MXN11,728
      • CJJ 23:45
        34h 5m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Sat, Jan 24 | Eastar Jet
        MXN11,916
        10% OFF
        MXN13,283 MXN11,916
      • CJJ 16:10
        17h 40m
        1 stop
        ONT 16:50
        Cheongju - Ontario | Wed, Jan 21 | Aero K Airlines
        MXN11,955
        10% OFF
        MXN13,283 MXN11,955
      • CJJ 13:00
        17h 25m
        1 stop
        ONT Invalid Date
        Cheongju - Ontario | Sat, Dec 13 | Normal Airline
        Find More Flights
        Find More Flights

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

Flight Info | Cheongju to Ontario

The distance between Cheongju and Ontario is approximately 9,651.87 km.

Cheapest one-way flight priceMXN10,275
Cheapest return ticket priceMXN18,665
Flight distance9,651.87 km

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

The cheapest time for Cheongju to Ontario flights: Jan 11 to Jan 18 — one way flight prices from MXN8,506.

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 Ontario, calculated over the upcoming 10 weeks.

Frequently Asked Questions

  • What are the cheapest flights from Cheongju to Ontario (CJJ-ONT)?

    Based on Trip.com data, Aero K Airlines offers one-way fares as low as MXN10,275 on Cheapest nonstop routes (e.g. CJJ to ONT on Tue, Dec 16), while Aero K Airlines offers Cheapest nonstop round-trips from MXN18,665 departing on Wed, Dec 17 and returning on Wed, Dec 24.
  • 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 Ontario 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 Ontario, 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, Dec 16, with one-way flights priced at just MXN10,275.
    · 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.
    · Get exclusive promo codes for Trip.com app users.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Cheongju to Ontario on December 17, 2025 with Aero K Airlines, with prices starting at MXN18,664.
  • The time difference between Ontario and Cheongju is 17h.
  • 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.

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