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Cheap flights from Ontario to South Korea from $511

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to South Korea departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Ontario to South Korea

Cheap round-trip flights

Enter your travel dates to find the best prices.
China Airlines Logo
12:45 am - 7:05 pm
ONT
-
ICN
26h 20m
1 stop
China Airlines Logo
12:45 pm - 6:40 pm
ICN
-
ONT
21h 55m
1 stop
$895China Airlines
Wed, Aug 26 - Sat, Sep 5
China Airlines Logo
12:45 am - 11:30 am
ONT
-
ICN
18h 45m
1 stop
China Airlines Logo
12:35 pm - 6:00 pm
ICN
-
ONT
21h 25m
1 stop
$896China Airlines
Mon, Aug 31 - Thu, Sep 17
China Airlines Logo
12:45 am - 7:05 pm
ONT
-
ICN
26h 20m
1 stop
China Airlines Logo
12:35 pm - 6:00 pm
ICN
-
ONT
21h 25m
1 stop
$904China Airlines
Mon, Aug 31 - Wed, Sep 30
China Airlines Logo
12:45 am - 11:30 am
ONT
-
ICN
18h 45m
1 stop
China Airlines Logo
12:45 pm - 6:40 pm
ICN
-
ONT
21h 55m
1 stop
$908China Airlines
Thu, Aug 27 - Sun, Aug 30
China Airlines Logo
12:45 am - 7:05 pm
ONT
-
ICN
26h 20m
1 stop
China Airlines Logo
12:45 pm - 6:40 pm
ICN
-
ONT
21h 55m
1 stop
$910China Airlines
Mon, Aug 31 - Sat, Sep 5
China Airlines Logo
12:45 am - 7:05 pm
ONT
-
ICN
26h 20m
1 stop
China Airlines Logo
12:45 pm - 6:40 pm
ICN
-
ONT
21h 55m
1 stop
$911China Airlines
Mon, Aug 31 - Sun, Sep 6
China Airlines Logo
12:45 am - 11:30 am
ONT
-
ICN
18h 45m
1 stop
China Airlines Logo
12:45 pm - 6:40 pm
ICN
-
ONT
21h 55m
1 stop
$912China Airlines
Mon, Aug 31 - Sun, Sep 13
China Airlines Logo
12:45 am - 7:05 pm
ONT
-
ICN
26h 20m
1 stop
China Airlines Logo
12:45 pm - 6:40 pm
ICN
-
ONT
21h 55m
1 stop
$915China Airlines
Mon, Aug 31 - Thu, Sep 10
Multiple Airlines Logo
12:10 am - 7:00 pm
ONT
-
PUS
26h 50m
1 stop
Multiple Airlines Logo
12:15 pm - 11:59 pm
PUS
-
ONT
27h 44m
2 stops
$1,164Multiple Airlines
Sat, Apr 25 - Sun, May 10
Korean Air Logo
6:00 am - 7:55 pm
ONT
-
TAE
21h 55m
2 stops
Korean Air Logo
7:55 am - 10:40 pm
TAE
-
ONT
30h 45m
2 stops
$1,465Korean Air
Mon, Aug 31 - Wed, Sep 2

China Airlines flights from Ontario to South Korea

Our best China Airlines deals on Ontario to South Korea flight tickets
China Airlines
Aug 26
ONT12:45 amOntario
26h 20m
1 stop
ICN7:05 pmIncheon Intl
Sep 5
ICN12:45 pmIncheon Intl
21h 55m
1 stop
ONT6:40 pmOntario
$895
China Airlines
Aug 31
ONT12:45 amOntario
18h 45m
1 stop
ICN11:30 amIncheon Intl
Sep 17
ICN12:35 pmIncheon Intl
21h 25m
1 stop
ONT6:00 pmOntario
$896
China Airlines
Aug 27
ONT12:45 amOntario
18h 45m
1 stop
ICN11:30 amIncheon Intl
Aug 30
ICN12:45 pmIncheon Intl
21h 55m
1 stop
ONT6:40 pmOntario
$908

United Airlines flights from Ontario to South Korea

Our best United Airlines deals on Ontario to South Korea flight tickets
United Airlines
Apr 7
ONT6:00 amOntario
17h 00m
1 stop
ICN3:00 pmIncheon Intl
Apr 29
ICN4:50 pmIncheon Intl
16h 57m
1 stop
ONT5:47 pmOntario
$1,306
United Airlines
Apr 12
ONT1:27 pmOntario
33h 33m
1 stop
ICN3:00 pmIncheon Intl
Apr 21
ICN11:30 amIncheon Intl
16h 50m
1 stop
ONT12:20 pmOntario
$1,313
United Airlines
Apr 18
ONT1:27 pmOntario
22h 53m
1 stop
ICN4:20 amIncheon Intl
Apr 30
ICN11:30 amIncheon Intl
14h 09m
1 stop
ONT9:39 amOntario
$1,356

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to South Korea 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, momondo users made 832,500 searches. Data last updated April 4, 2026.
Use the filters below to find and compare flights from Ontario to South Korea that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Wed 8/26

12:45 am-7:05 pm

1 stop26h 20m

Incheon Intl

Sat 9/5

12:45 pm-6:40 pm

1 stop21h 55m

$895
Quickest round-trip

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 8/31

12:45 am-11:30 am

1 stop18h 45m

Incheon Intl

Thu 9/17

12:35 pm-6:00 pm

1 stop21h 25m

$896

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 8/31

12:45 am-7:05 pm

1 stop26h 20m

Incheon Intl

Wed 9/30

12:35 pm-6:00 pm

1 stop21h 25m

$904

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Thu 8/27

12:45 am-11:30 am

1 stop18h 45m

Incheon Intl

Sun 8/30

12:45 pm-6:40 pm

1 stop21h 55m

$908

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 8/31

12:45 am-7:05 pm

1 stop26h 20m

Incheon Intl

Sat 9/5

12:45 pm-6:40 pm

1 stop21h 55m

$910

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 8/31

12:45 am-7:05 pm

1 stop26h 20m

Incheon Intl

Sun 9/6

12:45 pm-6:40 pm

1 stop21h 55m

$911

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 8/31

12:45 am-11:30 am

1 stop18h 45m

Incheon Intl

Sun 9/13

12:45 pm-6:40 pm

1 stop21h 55m

$912

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 8/31

12:45 am-7:05 pm

1 stop26h 20m

Incheon Intl

Thu 9/10

12:45 pm-6:40 pm

1 stop21h 55m

$915

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Sat 4/25

12:10 am-7:00 pm

1 stop26h 50m

Busan Gimhae

Sun 5/10

12:15 pm-11:59 pm

2 stops27h 44m

$1,164

OntarioDaegu

ONT - TAE

ONTTAE

Ontario

Mon 8/31

6:00 am-7:55 pm

2 stops21h 55m

Daegu

Wed 9/2

7:55 am-10:40 pm

2 stops30h 45m

$1,465

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to South Korea from

How to get the cheapest flight ticket from Ontario to South Korea

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

Can stopping save me money on Ontario to South Korea flights?

You could potentially save up to 19% on your flight if you consider stops on a Ontario to South Korea flight.

Cheap Ontario to South Korea flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to South Korea

Fastest flight time

15h 00m

Direct flights

None
The fastest flight from Ontario to South Korea takes 15h 00m
There are no direct flights from Ontario to South Korea. There are no popular flight routes from Ontario to South Korea.
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Frequently asked questions about flying from Ontario to South Korea

  • When did momondo last update prices for flights from Ontario Airport to South Korea?

    Prices for flights from Ontario Airport to South Korea were last updated today.

  • How many operators does momondo search for flights from Ontario Airport to South Korea?

  • How old do you have to be to fly from Ontario Airport to South Korea?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to South Korea.

  • What documentation or ID do you need to fly to South Korea?

    The necessary travel and health documents for your South Korea trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ontario to South Korea

Compare and see reviews for airlines that fly from Ontario to South Korea with momondo
Airline
Rating
Free Cancellation
Price
China AirlinesPriceFrom $854Free CancellationRating
8.3
815 reviews
Search China Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to South Korea?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to South Korea. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to South Korea with flexible booking policies on momondo?

momondo does allow users to show only those flights to South Korea 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 South Korea?

momondo provides multiple filters to help you find the best flight to South Korea 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 South Korea right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to South Korea 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.

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