$2,139+ Cheap flights from Ontario (ONT) to Jeju-do
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CJU
ago. 19 — ago. 261
1 adult, Economy
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Keep the following information in mind while searching for Ontario to Jeju-do flight deals. Data was last updated agosto 14, 2025.
Round-trip from | $2,139 (Mytrip) |
|---|---|
Popular in | December |
Cheapest in | October |
Average price | $1,679 |
Find flight deals from Ontario to Jeju-do
Cheapest flights from Ontario to Jeju-doExplore the most affordable flight options available from Ontario to Jeju-do. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.
Explore the most affordable flight options available from Ontario to Jeju-do. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.
This Mytrip deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/3012:10 amONT - CJU
1 stop17h 35mMultiple Airlines
mié. 10/810:30 amCJU - ONT
1 stop22h 35mMultiple Airlines
Deal found 8/13![Multiple Airlines logo]()
$2,139
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Jeju-do that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 14, 2025.
Use the filters below to find and compare flights from Ontario to Jeju-do that are best for you.
Fly from
Ontario
Fly to
Jeju-do
Route
Depart
Return
Price
OntarioJeju City
ONT - CJU
ONTCJU
Ontario
mar. 9/30
12:10 am-9:45 am
1 stop17h 35m
Jeju City
mié. 10/8
10:30 am-5:05 pm
1 stop22h 35m
$2,139
Best time to book a flight from Ontario to Jeju-do
Have a flexible travel schedule? Discover the best time to fly to Jeju-do from Ontario with our price prediction graph.
Estimated round-trip price
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