App
Customer Support
IDR
Find Bookings
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Cheap flight deals from Ontario to Jeju Starting at IDR 10,214,631

For as little as IDR 10,214,631, you can take your next adventure to Jeju without breaking the bank. Choose between one-way and return tickets from Ontario below.

  • One way
  • Round-trip
      • ONT22:45
        26h 10m
        1 stop
        CJU17:55
        Wed, Mar 5|Ontario - Jeju|China Airlines
        IDR 10,214,631IDR 15,379,803
        34% OFF
        34% OFF
        IDR 15,379,803IDR 10,214,631

        Choose China Airlines flights from Ontario to Jeju. The one-way connecting flight with China Airlines departs from Ontario International Airport on Wed, Mar 5, arriving at Jeju International Airport. One-way Prices start from IDR 10,214,631 including taxes and charges.

      • ONT22:45
        25h 40m
        1 stop
        CJU17:25
        Mon, Mar 3|Ontario - Jeju|China Airlines
        IDR 10,776,492IDR 15,379,803
        30% OFF
        30% OFF
        IDR 15,379,803IDR 10,776,492

        Choose China Airlines flights from Ontario to Jeju. The one-way connecting flight with China Airlines departs from Ontario International Airport on Mon, Mar 3, arriving at Jeju International Airport. One-way Prices start from IDR 10,776,492 including taxes and charges.

      • ONT23:45
        25h 40m
        1 stop
        CJU17:25
        Mon, Mar 10|Ontario - Jeju|China Airlines
        IDR 10,873,132IDR 15,379,803
        28% OFF
        28% OFF
        IDR 15,379,803IDR 10,873,132

        Choose China Airlines flights from Ontario to Jeju. The one-way connecting flight with China Airlines departs from Ontario International Airport on Mon, Mar 10, arriving at Jeju International Airport. One-way Prices start from IDR 10,873,132 including taxes and charges.

      • ONT00:10
        25h 20m
        1 stop
        CJU17:30
        Thu, May 1|Ontario - Jeju|China Airlines
        IDR 10,967,524
        IDR 10,967,524

        Choose China Airlines flights from Ontario to Jeju. The one-way connecting flight with China Airlines departs from Ontario International Airport on Thu, May 1, arriving at Jeju International Airport. One-way Prices start from IDR 10,967,524 including taxes and charges.

      • ONT00:10
        25h 20m
        1 stop
        CJU17:30
        Fri, Apr 4|Ontario - Jeju|China Airlines
        IDR 11,158,557
        IDR 11,158,557

        Choose China Airlines flights from Ontario to Jeju. The one-way connecting flight with China Airlines departs from Ontario International Airport on Fri, Apr 4, arriving at Jeju International Airport. One-way Prices start from IDR 11,158,557 including taxes and charges.

      • ONT00:10
        25h 20m
        1 stop
        CJU17:30
        Thu, Apr 17|Ontario - Jeju|China Airlines
        IDR 11,196,764
        IDR 11,196,764

        Choose China Airlines flights from Ontario to Jeju. The one-way connecting flight with China Airlines departs from Ontario International Airport on Thu, Apr 17, arriving at Jeju International Airport. One-way Prices start from IDR 11,196,764 including taxes and charges.

      • ONT00:10
        25h 20m
        1 stop
        CJU17:30
        Fri, Apr 11|Ontario - Jeju|China Airlines
        IDR 11,270,929
        IDR 11,270,929

        Choose China Airlines flights from Ontario to Jeju. The one-way connecting flight with China Airlines departs from Ontario International Airport on Fri, Apr 11, arriving at Jeju International Airport. One-way Prices start from IDR 11,270,929 including taxes and charges.

      • ONT00:10
        37h 55m
        1 stop
        CJU06:05
        Wed, Apr 16|Ontario - Jeju|China Airlines
        IDR 11,275,424
        IDR 11,275,424

        Choose China Airlines flights from Ontario to Jeju. The one-way connecting flight with China Airlines departs from Ontario International Airport on Wed, Apr 16, arriving at Jeju International Airport. One-way Prices start from IDR 11,275,424 including taxes and charges.

      • ONT22:45
        25h 40m
        1 stop
        CJU17:25
        Fri, Feb 21|Ontario - Jeju|China Airlines
        IDR 11,336,105
        IDR 11,336,105

        Choose China Airlines flights from Ontario to Jeju. The one-way connecting flight with China Airlines departs from Ontario International Airport on Fri, Feb 21, arriving at Jeju International Airport. One-way Prices start from IDR 11,336,105 including taxes and charges.

      • ONT00:10
        37h 55m
        1 stop
        CJU06:05
        Mon, May 12|Ontario - Jeju|China Airlines
        IDR 11,349,590
        IDR 11,349,590

        Choose China Airlines flights from Ontario to Jeju. The one-way connecting flight with China Airlines departs from Ontario International Airport on Mon, May 12, arriving at Jeju International Airport. One-way Prices start from IDR 11,349,590 including taxes and charges.

      • ONT01:00 pm
        3h 5m
        Nonstop
        CJU02:00 pm
        Fri, Feb 28|Ontario - Jeju|China Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Los Angeles to Jeju flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA277

    United Airlines

    06:00

    ONT

    1.5h

    07:29

    SFO

    SMTWTFS
    Search

  2. UA871

    United Airlines

    13:55

    SFO

    13.8h

    18:45

    TPE

    SMTWTFS

  3. IT654

    Tigerair Taiwan

    07:10

    TPE

    1.8h

    10:00

    CJU

    -MT-TF-

  4. UA277

    United Airlines

    06:00

    ONT

    1.5h

    07:29

    SFO

    SMTWTFS
    Search

  5. UA869

    United Airlines

    13:05

    SFO

    14.8h

    18:55

    HKG

    SMTWTFS

  6. UO676

    HK Express

    02:45

    HKG

    2.9h

    06:40

    CJU

    SMTWTFS

  7. UA277

    United Airlines

    06:00

    ONT

    1.5h

    07:29

    SFO

    SMTWTFS
    Search

  8. UA871

    United Airlines

    13:55

    SFO

    13.8h

    18:45

    TPE

    SMTWTFS

  9. ZE886

    Eastar Jet

    03:05

    TPE

    2.0h

    06:05

    CJU

    SMTWTFS

  10. DL4042

    Delta Air Lines

    07:00

    ONT

    3.0h

    10:03

    SEA

    SMTWTFS
    Search

  11. DL281

    Delta Air Lines

    11:45

    SEA

    12.7h

    15:25

    PVG

    SMTWTFS

  12. LJ820

    Jin Air

    07:10

    PVG

    1.5h

    09:40

    CJU

    SMTWTFS

  13. UA4639

    United Airlines

    10:40

    ONT

    1.7h

    12:20

    SFO

    SMTWT--
    Search

  14. UA871

    United Airlines

    13:55

    SFO

    13.8h

    18:45

    TPE

    SMTWTFS

  15. ZE886

    Eastar Jet

    03:05

    TPE

    2.0h

    06:05

    CJU

    SMTWTFS

  16. CI023

    China Airlines

    22:45

    ONT

    14.8h

    05:30

    TPE

    SMTWTFS
    Search

  17. CI160

    China Airlines

    07:40

    TPE

    2.6h

    11:15

    ICN

    SMTWTFS

  18. 7C139

    Jeju Air

    19:30

    GMP

    1.2h

    20:40

    CJU

    SMTWTFS

  19. CI023

    China Airlines

    22:45

    ONT

    14.8h

    05:30

    TPE

    SMTWTFS
    Search

  20. CI160

    China Airlines

    07:40

    TPE

    2.6h

    11:15

    ICN

    SMTWTFS

  21. 7C135

    Jeju Air

    18:20

    GMP

    1.2h

    19:30

    CJU

    SMTWTFS

  22. CI023

    China Airlines

    22:45

    ONT

    14.8h

    05:30

    TPE

    SMTWTFS
    Search

  23. TW688

    T'Way Air

    15:00

    TPE

    1.9h

    17:55

    CJU

    SMTWTFS

  24. AA2277

    American Airlines

    23:59

    ONT

    2.8h

    04:46

    DFW

    SMTWTFS
    Search

  25. AA127

    American Airlines

    10:10

    DFW

    15.7h

    14:50

    PVG

    SMTWTFS

  26. 9C8567

    Spring Airlines

    18:05

    PVG

    1.5h

    20:35

    CJU

    SMTWTFS

  27. AA2277

    American Airlines

    23:59

    ONT

    2.8h

    04:46

    DFW

    SMTWTFS
    Search

  28. AA127

    American Airlines

    10:10

    DFW

    15.7h

    14:50

    PVG

    SMTWTFS

  29. HO1373

    Juneyao Airlines

    18:50

    PVG

    1.5h

    21:20

    CJU

    SMTWTFS
Find more flights and airlines

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

These price trend charts carefully monitor and predict how flight prices from Ontario to Jeju will change. Keep a close eye on them to understand when the best time to buy your tickets is.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Ontario (ONT) to Jeju (CJU) the cheapest?

    Airlines adjust prices for flights from Ontario to Jeju based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Ontario (ONT) to Jeju (CJU) cost?

    According to Trip.com's data, the lowest price is around IDR 24,832,003.

  • What is the transportation method from the main airport to downtown in Jeju?

    • The distance from Jeju International Airport to downtown is about 3 km, by taxi about 20 minutes.

  • How many airports are there in Jeju (CJU)?

    There are 1 airport(s) near Jeju (CJU): Jeju International Airport.

How to find a cheap flight from Ontario to Jeju

If you don’t know some of the key things to look out for when buying flight tickets, prices can often end up sky high or, worse, sold out! We’ve carefully compiled our six most important steps to help ensure you’re getting the best deals when planning your next journey.
1
Being flexible with your dates to get the cheapest Ontario to Jeju ticket.
Tap "Date" on flight search bar to scan through the calender for Ontario to Jeju airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Wed, Mar 5 at IDR 10214631 for one-way flights.
2
Compare cheap Ontario to Jeju flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Ontario to Jeju. The cheapest airline operating is China Airlines.
3
Set up a Price Alert
By setting up a Price Alert for your Ontario to Jeju route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap Ontario to Jeju flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Ontario to Jeju to get exclusive deals for you.

Flight Info | Ontario to Jeju

Cheapest direct flight priceIDR 10,214,630
Flight distance13,313.31 km
Popular airlineUnited Airlines

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2025 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.