$1,214+ Cheap flights from Ontario (ONT) to Jeju-do
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CJU
May 6 — May 131
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 May 1, 2025.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Popular in | December |
Cheapest in | August |
Average price | $1,348 |
Find flight deals from Ontario to Jeju-do
One-way flights from Ontario to Jeju-doSearch for one-way flight options from Ontario to Jeju-do. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.
Search for one-way flight options from Ontario to Jeju-do. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.
This Mytrip deal was found by Cheapflights users on 4/30. 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.
Mon 6/212:10 amONT - CJU
2 stops22h 50mMultiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$1,214
This KAYAK deal was found by Cheapflights users on 4/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/36:00 amONT - CJU
2 stops23h 45mKorean Air
Deal found 4/30![Korean Air logo]()
$1,250
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 May 1, 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
Mon 6/2
12:10 am-3:00 pm
2 stops22h 50m
$1,214
OntarioJeju City
ONT - CJU
ONTCJU
Ontario
Tue 6/3
6:00 am-9:45 pm
2 stops23h 45m
$1,250
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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Jeju-do
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Jeju-do
Get insights into the airlines that provide service to Jeju-do. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Jeju-do. Reviews last updated May 1, 2025.
Overall
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Entertainment
8.2
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Entertainment
8.2
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN