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Cheap flights from Ontario to South Korea from $432

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 3/1. 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
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.
Multiple Airlines Logo
9:06 am - 8:30 pm
ONT
-
ICN
19h 24m1 stop
Multiple Airlines Logo
9:20 pm - 11:59 pm
ICN
-
ONT
42h 39m2 stops
$901Multiple Airlines
Mon, Mar 9 - Tue, Mar 17
Multiple Airlines Logo
6:39 pm - 8:30 pm
ONT
-
ICN
32h 51m1 stop
Multiple Airlines Logo
6:55 pm - 12:10 pm
ICN
-
ONT
34h 15m2 stops
$905Multiple Airlines
Sun, Jan 18 - Sun, Jan 25
China Airlines Logo
12:10 am - 7:00 pm
ONT
-
PUS
26h 50m1 stop
China Airlines Logo
10:30 am - 6:00 pm
PUS
-
ONT
23h 30m1 stop
$925China Airlines
Sat, Apr 11 - Wed, Jun 3
China Airlines Logo
10:50 pm - 7:15 pm
ONT
-
ICN
27h 25m1 stop
China Airlines Logo
8:15 pm - 4:50 pm
ICN
-
ONT
37h 35m1 stop
$929China Airlines
Mon, Feb 23 - Sat, Mar 7
China Airlines Logo
12:10 am - 7:05 pm
ONT
-
ICN
26h 55m1 stop
China Airlines Logo
12:45 pm - 6:00 pm
ICN
-
ONT
21h 15m1 stop
$930China Airlines
Sun, Apr 5 - Wed, Apr 15
China Airlines Logo
12:10 am - 7:05 pm
ONT
-
ICN
26h 55m1 stop
China Airlines Logo
8:05 pm - 6:00 pm
ICN
-
ONT
37h 55m1 stop
$935China Airlines
Sat, Apr 11 - Sun, Apr 26
China Airlines Logo
12:10 am - 7:05 pm
ONT
-
ICN
26h 55m1 stop
China Airlines Logo
8:05 pm - 6:00 pm
ICN
-
ONT
37h 55m1 stop
$942China Airlines
Thu, Apr 9 - Mon, Apr 20
China Airlines Logo
12:10 am - 7:05 pm
ONT
-
ICN
26h 55m1 stop
China Airlines Logo
12:45 pm - 6:00 pm
ICN
-
ONT
21h 15m1 stop
$943China Airlines
Sat, Apr 4 - Sat, Apr 18
Multiple Airlines Logo
10:50 pm - 8:00 pm
ONT
-
PUS
28h 10m1 stop
Multiple Airlines Logo
9:15 pm - 4:50 pm
PUS
-
ONT
59h 35m2 stops
$1,036Multiple Airlines
Sat, Jan 17 - Mon, Mar 16
Korean Air Logo
6:00 am - 7:45 pm
ONT
-
TAE
20h 45m2 stops
Korean Air Logo
7:40 am - 10:44 pm
TAE
-
ONT
32h 04m2 stops
$1,537Korean Air
Thu, Feb 5 - Mon, Feb 9

American Airlines flights from Ontario to South Korea

Our best American Airlines deals on Ontario to South Korea flight tickets
American Airlines
Mar 24
ONT11:58 pmOntario
23h 57m
1 stop
ICN3:55 pmIncheon Intl
Apr 14
ICN5:25 pmIncheon Intl
20h 11m
2 stops
ONT9:36 pmOntario
$958
Find similar
American Airlines
Jan 18
ONT11:59 pmOntario
23h 46m
1 stop
ICN4:45 pmIncheon Intl
Jan 25
ICN7:15 pmIncheon Intl
20h 33m
1 stop
ONT10:48 pmOntario
$966
Find similar
American Airlines
Apr 3
ONT11:58 pmOntario
23h 32m
1 stop
ICN3:30 pmIncheon Intl
Apr 30
ICN5:25 pmIncheon Intl
20h 11m
2 stops
ONT9:36 pmOntario
$968
Find similar

Japan Airlines flights from Ontario to South Korea

Our best Japan Airlines deals on Ontario to South Korea flight tickets
Japan Airlines
Feb 6
ONT11:59 pmOntario
23h 46m
1 stop
ICN4:45 pmIncheon Intl
Feb 28
ICN7:15 pmIncheon Intl
20h 34m
1 stop
ONT10:49 pmOntario
$1,126
Find similar
Japan Airlines
Feb 17
ONT11:59 pmOntario
23h 46m
1 stop
ICN4:45 pmIncheon Intl
Feb 21
ICN7:15 pmIncheon Intl
20h 34m
1 stop
ONT10:49 pmOntario
$1,130
Find similar

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 December 23, 2025.
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

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 3/9

9:06 am-8:30 pm

1 stop19h 24m

Incheon Intl

Tue 3/17

9:20 pm-11:59 pm

2 stops42h 39m

$901

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Sun 1/18

6:39 pm-8:30 pm

1 stop32h 51m

Incheon Intl

Sun 1/25

6:55 pm-12:10 pm

2 stops34h 15m

$905

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Sat 4/11

12:10 am-7:00 pm

1 stop26h 50m

Busan Gimhae

Wed 6/3

10:30 am-6:00 pm

1 stop23h 30m

$925

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 2/23

10:50 pm-7:15 pm

1 stop27h 25m

Incheon Intl

Sat 3/7

8:15 pm-4:50 pm

1 stop37h 35m

$929

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Sun 4/5

12:10 am-7:05 pm

1 stop26h 55m

Incheon Intl

Wed 4/15

12:45 pm-6:00 pm

1 stop21h 15m

$930

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Sat 4/11

12:10 am-7:05 pm

1 stop26h 55m

Incheon Intl

Sun 4/26

8:05 pm-6:00 pm

1 stop37h 55m

$935

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Thu 4/9

12:10 am-7:05 pm

1 stop26h 55m

Incheon Intl

Mon 4/20

8:05 pm-6:00 pm

1 stop37h 55m

$942

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Sat 4/4

12:10 am-7:05 pm

1 stop26h 55m

Incheon Intl

Sat 4/18

12:45 pm-6:00 pm

1 stop21h 15m

$943

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Sat 1/17

10:50 pm-8:00 pm

1 stop28h 10m

Busan Gimhae

Mon 3/16

9:15 pm-4:50 pm

2 stops59h 35m

$1,036

OntarioDaegu

ONT - TAE

ONTTAE

Ontario

Thu 2/5

6:00 am-7:45 pm

2 stops20h 45m

Daegu

Mon 2/9

7:40 am-10:44 pm

2 stops32h 04m

$1,537

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

What is the cheapest day to depart on your flight to South Korea?

On average, the least expensive day to fly to South Korea from Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,189. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to South Korea for around $1,310.

What is the cheapest time of day to depart on your flight to South Korea?

Flying to South Korea from Ontario in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,130 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,480 on average. Flights to South Korea from Ontario in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

17h 00m

Direct flights

None
The fastest flight from Ontario to South Korea takes 17h 00m
There are no direct flights from Ontario to South Korea. There are no popular flight routes from Ontario to South Korea.
Search flight deals

  • 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 $892Free CancellationRating
8.3
792 reviews
Search China Airlines flights
Korean AirPriceFrom $1,111Free CancellationRating
8.4
1,185 reviews
Search Korean Air 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.

An easier way to manage your South Korea trip

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