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?

As of October 2026, there is 1 operator available to choose from 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.

$403 Cheap Flights from Ontario to South Korea in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to South Korea

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:02 am - 9:20 pmONT Ontario-ICN Incheon Intl

20h 18m2 stops Las Vegas Harry Reid Intl San Francisco

7:45 pm - 12:05 amICN Incheon Intl-ONT Ontario

45h 20m2 stops San Francisco Denver Intl

$859Multiple Airlines

Mon, Feb 1 - Mon, Feb 22

12:01 pm - 5:10 amONT Ontario-ICN Incheon Intl

24h 09m1 stop San Francisco

9:00 pm - 12:24 amICN Incheon Intl-ONT Ontario

20h 24m1 stop San Francisco

$886Multiple Airlines

Thu, Nov 12 - Mon, Nov 23

12:01 pm - 5:10 amONT Ontario-ICN Incheon Intl

24h 09m1 stop San Francisco

9:00 pm - 7:30 pmICN Incheon Intl-ONT Ontario

15h 30m1 stop San Francisco

$905Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

12:01 pm - 5:10 amONT Ontario-ICN Incheon Intl

24h 09m1 stop San Francisco

9:00 pm - 12:24 amICN Incheon Intl-ONT Ontario

20h 24m1 stop San Francisco

$907Multiple Airlines

Mon, Nov 16 - Mon, Nov 23

12:01 pm - 5:10 amONT Ontario-ICN Incheon Intl

24h 09m1 stop San Francisco

9:00 pm - 10:45 amICN Incheon Intl-ONT Ontario

30h 45m2 stops San Francisco Denver Intl

$909Multiple Airlines

Thu, Nov 12 - Thu, Nov 19

12:01 pm - 5:10 amONT Ontario-ICN Incheon Intl

24h 09m1 stop San Francisco

9:00 pm - 10:45 amICN Incheon Intl-ONT Ontario

30h 45m2 stops San Francisco Denver Intl

$913Multiple Airlines

Fri, Nov 6 - Thu, Nov 19

12:01 pm - 5:10 amONT Ontario-ICN Incheon Intl

24h 09m1 stop San Francisco

9:00 pm - 10:45 amICN Incheon Intl-ONT Ontario

30h 45m2 stops San Francisco Denver Intl

$917Multiple Airlines

Fri, Nov 6 - Thu, Nov 19

10:35 am - 9:20 pmONT Ontario-ICN Incheon Intl

18h 45m2 stops Las Vegas Harry Reid Intl San Francisco

7:45 pm - 7:30 pmICN Incheon Intl-ONT Ontario

16h 45m1 stop San Francisco

$920Multiple Airlines

Wed, Oct 28 - Fri, Nov 6

10:50 pm - 7:15 pmONT Ontario-ICN Incheon Intl

27h 25m1 stop Taipei City Taiwan Taoyuan Intl

12:30 pm - 5:05 pmICN Incheon Intl-ONT Ontario

21h 35m1 stop Taipei City Taiwan Taoyuan Intl

$1,120China Airlines

Tue, Nov 24 - Fri, Dec 11

10:50 pm - 7:15 pmONT Ontario-ICN Incheon Intl

27h 25m1 stop Taipei City Taiwan Taoyuan Intl

12:30 pm - 5:05 pmICN Incheon Intl-ONT Ontario

21h 35m1 stop Taipei City Taiwan Taoyuan Intl

$1,120China Airlines

Wed, Nov 25 - Fri, Dec 11

Cheap last minute flights

Enter your travel dates to find the best prices.

6:20 am - 4:40 pmONT Ontario-ICN Incheon Intl

18h 20m1 stop Seattle/Tacoma Intl

4:10 pm - 5:12 pmICN Incheon Intl-ONT Ontario

17h 02m1 stop Seattle/Tacoma Intl

$1,007Korean Air

Tue, Oct 20 - Wed, Oct 28

6:20 am - 4:40 pmONT Ontario-ICN Incheon Intl

18h 20m1 stop Seattle/Tacoma Intl

4:10 pm - 5:12 pmICN Incheon Intl-ONT Ontario

17h 02m1 stop Seattle/Tacoma Intl

$1,022Korean Air

Tue, Oct 20 - Tue, Oct 27

6:20 am - 4:40 pmONT Ontario-ICN Incheon Intl

18h 20m1 stop Seattle/Tacoma Intl

4:10 pm - 5:12 pmICN Incheon Intl-ONT Ontario

17h 02m1 stop Seattle/Tacoma Intl

$1,022Korean Air

Tue, Oct 20 - Thu, Oct 29

6:20 am - 4:40 pmONT Ontario-ICN Incheon Intl

18h 20m1 stop Seattle/Tacoma Intl

4:10 pm - 5:12 pmICN Incheon Intl-ONT Ontario

17h 02m1 stop Seattle/Tacoma Intl

$1,022Korean Air

Wed, Oct 21 - Mon, Oct 26

6:20 am - 4:40 pmONT Ontario-ICN Incheon Intl

18h 20m1 stop Seattle/Tacoma Intl

4:10 pm - 5:12 pmICN Incheon Intl-ONT Ontario

17h 02m1 stop Seattle/Tacoma Intl

$1,022Korean Air

Tue, Oct 20 - Wed, Oct 28

6:20 am - 4:40 pmONT Ontario-ICN Incheon Intl

18h 20m1 stop Seattle/Tacoma Intl

4:10 pm - 5:12 pmICN Incheon Intl-ONT Ontario

17h 02m1 stop Seattle/Tacoma Intl

$1,022Korean Air

Mon, Oct 19 - Mon, Oct 26

6:20 am - 4:40 pmONT Ontario-ICN Incheon Intl

18h 20m1 stop Seattle/Tacoma Intl

4:10 pm - 5:12 pmICN Incheon Intl-ONT Ontario

17h 02m1 stop Seattle/Tacoma Intl

$1,022Korean Air

Mon, Oct 19 - Tue, Oct 27

6:20 am - 4:40 pmONT Ontario-ICN Incheon Intl

18h 20m1 stop Seattle/Tacoma Intl

4:10 pm - 5:12 pmICN Incheon Intl-ONT Ontario

17h 02m1 stop Seattle/Tacoma Intl

$1,022Korean Air

Mon, Oct 19 - Thu, Oct 29

12:10 am - 11:30 amONT Ontario-ICN Incheon Intl

19h 20m1 stop Taipei City Taiwan Taoyuan Intl

12:45 pm - 6:00 pmICN Incheon Intl-ONT Ontario

21h 15m1 stop Taipei City Taiwan Taoyuan Intl

$1,210China Airlines

Sun, Oct 18 - Fri, Oct 23

12:10 am - 11:30 amONT Ontario-ICN Incheon Intl

19h 20m1 stop Taipei City Taiwan Taoyuan Intl

12:30 pm - 5:05 pmICN Incheon Intl-ONT Ontario

21h 35m1 stop Taipei City Taiwan Taoyuan Intl

$1,254China Airlines

Sun, Oct 18 - Thu, Nov 12

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Korean Air flights from Ontario to South Korea

Our best Korean Air deals on Ontario to South Korea flight tickets

Korean Air

Nov 2

ONT6:20 amOntario

16h 35m

1 stop

ICN3:55 pmIncheon Intl

Nov 18

ICN4:10 pmIncheon Intl

18h 06m

1 stop

ONT5:16 pmOntario

$986

Korean Air

Nov 12

ONT7:00 amOntario

15h 55m

1 stop

ICN3:55 pmIncheon Intl

Nov 23

ICN4:10 pmIncheon Intl

23h 50m

1 stop

ONT11:00 pmOntario

$996

Korean Air

Oct 20

ONT6:20 amOntario

18h 20m

1 stop

ICN4:40 pmIncheon Intl

Oct 28

ICN4:10 pmIncheon Intl

17h 02m

1 stop

ONT5:12 pmOntario

$1,007

Alaska Airlines flights from Ontario to South Korea

Our best Alaska Airlines deals on Ontario to South Korea flight tickets

Alaska Airlines

Oct 24

ONT11:13 amOntario

38h 22m

1 stop

ICN5:35 pmIncheon Intl

Dec 14

ICN8:00 pmIncheon Intl

19h 59m

1 stop

ONT10:59 pmOntario

$1,076

Alaska Airlines

Oct 24

ONT6:02 amOntario

19h 33m

1 stop

ICN5:35 pmIncheon Intl

Oct 31

ICN8:00 pmIncheon Intl

36h 13m

1 stop

ONT4:13 pmOntario

$1,126

Alaska Airlines

Oct 24

ONT2:13 pmOntario

35h 22m

1 stop

ICN5:35 pmIncheon Intl

Oct 31

ICN8:00 pmIncheon Intl

36h 13m

1 stop

ONT4:13 pmOntario

$1,133

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioIncheon

ONT Ontario - ICN Incheon Intl

ONTICN

Ontario

Mon 2/1

8:02 am-9:20 pm

2 stops20h 18m

Incheon Intl

Mon 2/22

7:45 pm-12:05 am

2 stops45h 20m

$859

OntarioIncheon

ONT Ontario - ICN Incheon Intl

ONTICN

Ontario

Thu 11/12

12:01 pm-5:10 am

1 stop24h 09m

Incheon Intl

Mon 11/23

9:00 pm-12:24 am

1 stop20h 24m

$886

OntarioIncheon

ONT Ontario - ICN Incheon Intl

ONTICN

Ontario

Mon 11/9

12:01 pm-5:10 am

1 stop24h 09m

Incheon Intl

Mon 11/16

9:00 pm-7:30 pm

1 stop15h 30m

$905

OntarioIncheon

ONT Ontario - ICN Incheon Intl

ONTICN

Ontario

Mon 11/16

12:01 pm-5:10 am

1 stop24h 09m

Incheon Intl

Mon 11/23

9:00 pm-12:24 am

1 stop20h 24m

$907

OntarioIncheon

ONT Ontario - ICN Incheon Intl

ONTICN

Ontario

Thu 11/12

12:01 pm-5:10 am

1 stop24h 09m

Incheon Intl

Thu 11/19

9:00 pm-10:45 am

2 stops30h 45m

$909

OntarioIncheon

ONT Ontario - ICN Incheon Intl

ONTICN

Ontario

Fri 11/6

12:01 pm-5:10 am

1 stop24h 09m

Incheon Intl

Thu 11/19

9:00 pm-10:45 am

2 stops30h 45m

$913

OntarioIncheon

ONT Ontario - ICN Incheon Intl

ONTICN

Ontario

Fri 11/6

12:01 pm-5:10 am

1 stop24h 09m

Incheon Intl

Thu 11/19

9:00 pm-10:45 am

2 stops30h 45m

$917

Quickest round-trip

OntarioIncheon

ONT Ontario - ICN Incheon Intl

ONTICN

Ontario

Wed 10/28

10:35 am-9:20 pm

2 stops18h 45m

Incheon Intl

Fri 11/6

7:45 pm-7:30 pm

1 stop16h 45m

$920

OntarioIncheon

ONT Ontario - ICN Incheon Intl

ONTICN

Ontario

Tue 11/24

10:50 pm-7:15 pm

1 stop27h 25m

Incheon Intl

Fri 12/11

12:30 pm-5:05 pm

1 stop21h 35m

$1,120

OntarioIncheon

ONT Ontario - ICN Incheon Intl

ONTICN

Ontario

Wed 11/25

10:50 pm-7:15 pm

1 stop27h 25m

Incheon Intl

Fri 12/11

12:30 pm-5:05 pm

1 stop21h 35m

$1,120

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 airline that flies from Ontario to South Korea?

STARLUX Airlines, Alaska Airlines, and Korean Air are the most popular carriers operating from Ontario to South Korea

What airlines fly to South Korea?

AIR PREMIA, Asiana Airlines and Korean Air are the top three most popular airlines that fly to South Korea from Ontario according to our data. AIR PREMIA is the first choice among our users, with 75% of people opting to fly with this airline when traveling to South Korea. Keep in mind that there are 15 different airlines that fly to South Korea on a routine basis, so you have a few additional options to choose from.

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

Best Price Found	$403
Fastest flight time	15h 55m
Direct flights	None

The best one-way flight to South Korea from Ontario in the past 72 hours is $403. The best round-trip flight deal from Ontario to South Korea found on momondo in the last 72 hours is $859.

The fastest flight from Ontario to South Korea takes 15h 55m

There are no direct flights from Ontario to South Korea. There are no popular flight routes from Ontario to South Korea.

Search flight deals

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?
As of October 2026, there is 1 operator available to choose from 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 Airlines	PriceFrom $854	Free Cancellation	Rating 8.2 850 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.

An easier way to manage your South Korea trip

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Feeling lucky

Popular cities in South Korea

Flights to Seoulfrom $601

Flights to Jeju Cityfrom $813

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Flights to Daegufrom $817

Flights to Gwangjufrom $888

Flights to Jinjufrom $1,461

Flights to Ulsanfrom $1,972

Flights to Muan

Flights to Yeosu

Cheap flights from Ontario to South Korea from $403

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 2/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Korean Air flights from Ontario to South Korea

Our best Korean Air deals on Ontario to South Korea flight tickets

Alaska Airlines flights from Ontario to South Korea

Our best Alaska Airlines deals on Ontario to South Korea flight tickets

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Use the filters below to find and compare flights from Ontario to South Korea that are best for you.

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

What is the cheapest airline that flies from Ontario to South Korea?

What airlines fly to South Korea?

Cheap Ontario to South Korea flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Ontario to South Korea

Best airlines flying from Ontario to South Korea

Compare and see reviews for airlines that fly from Ontario to South Korea with momondo

Why use momondo?

An easier way to manage your South Korea trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to South Korea

Popular cities in South Korea

Popular flights according to clicks in the last 7 days on momondo

Ontario flight routes

According to popular flight searches on momondo this year

South Korea flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to South Korea

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to South Korea

List of cabin classes available on flights landing in South Korea. Availability may vary depending on flight origin and airline.

Complete your trip to South Korea

Explore popular destinations other users love

According to popular flight searches on momondo this year