When did momondo last update prices for flights from Ontario Airport to Jeju-do?

Prices for flights from Ontario Airport to Jeju-do were last updated today.

How old do you have to be to fly from Ontario Airport to Jeju-do?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Jeju-do.

What documentation or ID do you need to fly to Jeju-do?

The travel and health documents required for your trip to Jeju-do can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Jeju-do. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$1,095 Cheap Flights from Ontario to Jeju-do in 2026

1 adult

0 bags

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Find the cheapest flights from Ontario to Jeju-do

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:45 am - 5:30 pm

ONT

CJU

24h 45m

1 stop

4:05 pm - 5:40 pm

CJU

ONT

41h 35m

2 stops

$1,793Multiple Airlines

Thu, Jul 9 - Fri, Jul 17

12:45 am - 5:30 pm

ONT

CJU

24h 45m

1 stop

12:20 pm - 5:40 pm

CJU

ONT

21h 20m

1 stop

$1,820Multiple Airlines

Thu, Jul 9 - Fri, Jul 17

12:45 am - 10:00 pm

ONT

CJU

29h 15m

3 stops

7:30 am - 6:40 pm

CJU

ONT

27h 10m

2 stops

$2,168Multiple Airlines

Thu, Jul 9 - Fri, Jul 17

12:45 am - 8:20 pm

ONT

CJU

27h 35m

2 stops

7:30 am - 5:40 pm

CJU

ONT

26h 10m

2 stops

$2,213Multiple Airlines

Thu, Jul 9 - Fri, Jul 17

12:45 am - 10:25 pm

ONT

CJU

29h 40m

3 stops

10:40 pm - 6:40 pm

CJU

ONT

36h 00m

3 stops

$2,629Multiple Airlines

Thu, Jul 9 - Fri, Jul 17

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioJeju City

ONT - CJU

ONTCJU

Ontario

Thu 7/9

12:45 am-5:30 pm

1 stop24h 45m

Jeju City

Fri 7/17

4:05 pm-5:40 pm

2 stops41h 35m

$1,793

Quickest round-trip

OntarioJeju City

ONT - CJU

ONTCJU

Ontario

Thu 7/9

12:45 am-5:30 pm

1 stop24h 45m

Jeju City

Fri 7/17

12:20 pm-5:40 pm

1 stop21h 20m

$1,820

OntarioJeju City

ONT - CJU

ONTCJU

Ontario

Thu 7/9

12:45 am-10:00 pm

3 stops29h 15m

Jeju City

Fri 7/17

7:30 am-6:40 pm

2 stops27h 10m

$2,168

OntarioJeju City

ONT - CJU

ONTCJU

Ontario

Thu 7/9

12:45 am-8:20 pm

2 stops27h 35m

Jeju City

Fri 7/17

7:30 am-5:40 pm

2 stops26h 10m

$2,213

OntarioJeju City

ONT - CJU

ONTCJU

Ontario

Thu 7/9

12:45 am-10:25 pm

3 stops29h 40m

Jeju City

Fri 7/17

10:40 pm-6:40 pm

3 stops36h 00m

$2,629

Cheapest one-way

OntarioJeju City

ONT - CJU

ONTCJU

Ontario

Sun 6/21

12:10 am-5:30 pm

1 stop25h 20m

$1,095

OntarioJeju City

ONT - CJU

ONTCJU

Ontario

Sun 6/21

12:10 am-10:30 pm

2 stops30h 20m

$1,198

OntarioJeju City

ONT - CJU

ONTCJU

Ontario

Tue 6/9

6:20 am-9:45 pm

2 stops23h 25m

$1,549

OntarioJeju City

ONT - CJU

ONTCJU

Ontario

Fri 6/12

2:05 pm-2:10 pm

2 stops32h 05m

$1,580

OntarioJeju City

ONT - CJU

ONTCJU

Ontario

Thu 6/11

2:05 pm-2:10 pm

2 stops32h 05m

$1,599

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Jeju-do

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Jeju-do?

Korean Air is the most popular carrier operating from Ontario to Jeju-do

Cheap Ontario to Jeju-do flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Jeju-do

Fastest flight time	36h 49m
Direct flights	None

The fastest flight from Ontario to Jeju-do takes 36h 49m

There are no direct flights from Ontario to Jeju-do. There are no popular flight routes from Ontario to Jeju-do.

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Frequently asked questions about flying from Ontario to Jeju-do

When did momondo last update prices for flights from Ontario Airport to Jeju-do?
Prices for flights from Ontario Airport to Jeju-do were last updated today.
How old do you have to be to fly from Ontario Airport to Jeju-do?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Jeju-do.
What documentation or ID do you need to fly to Jeju-do?
The travel and health documents required for your trip to Jeju-do can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Jeju-do. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Jeju-do?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Jeju-do from Ontario.

Can I find flights from Ontario to Jeju-do with flexible booking policies on momondo?

momondo does allow users to show only those flights to Jeju-do from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Jeju-do?

momondo provides multiple filters to help you find the best flight to Jeju-do from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Jeju-do right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Jeju-do from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.