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Ontario

$750+ Cheap flights from Busan (PUS) to Ontario (ONT)

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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
PUS — ONT
May 31 — Jun 71
Sun 5/31
Sun 6/7
1 adult, Economy
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Cheap flight deals from Busan to Ontario

Cheapest flights from Busan to Ontario
Explore the most affordable flight options available from Busan to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2026.

This China Airlines deal was found by Cheapflights users on 4/29. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:30 am
PUS
-
ONT
1 stop24h 10m
China Airlines
Sat 9/1212:45 am
ONT
-
PUS
1 stop18h 30m
China Airlines
Deal found 4/29$1,210
This CheapTickets deal was found by Cheapflights users on 4/28. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/710:30 am
PUS
-
ONT
1 stop24h 10m
China Airlines
Mon 7/2712:45 am
ONT
-
PUS
1 stop18h 30m
China Airlines
Deal found 4/28$1,230
This Rumbo deal was found by Cheapflights users on 4/27. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/84:30 pm
PUS
-
ONT
2 stops22h 14m
Korean Air
Wed 9/167:00 am
ONT
-
PUS
2 stops20h 35m
Korean Air
Deal found 4/27$1,293
This China Airlines deal was found by Cheapflights users on 4/28. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/610:30 am
PUS
-
ONT
1 stop24h 10m
China Airlines
Sat 7/2512:45 am
ONT
-
PUS
1 stop16h 45m
China Airlines
Deal found 4/28$1,321
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:30 am
PUS
-
ONT
1 stop23h 30m
China Airlines
Mon 6/1512:10 am
ONT
-
PUS
1 stop19h 05m
China Airlines
Deal found 4/30$1,375
This China Airlines deal was found by Cheapflights users on 4/26. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:50 pm
PUS
-
ONT
1 stop38h 00m
China Airlines
Mon 11/210:50 pm
ONT
-
PUS
1 stop27h 00m
China Airlines
Deal found 4/26$1,404
This China Airlines deal was found by Cheapflights users on 4/28. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/610:30 am
PUS
-
ONT
1 stop24h 10m
China Airlines
Mon 7/2712:45 am
ONT
-
PUS
1 stop18h 30m
China Airlines
Deal found 4/28$1,405
This China Airlines deal was found by Cheapflights users on 4/28. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/610:30 am
PUS
-
ONT
1 stop24h 10m
China Airlines
Wed 7/2912:45 am
ONT
-
PUS
1 stop18h 30m
China Airlines
Deal found 4/28$1,456
This China Airlines deal was found by Cheapflights users on 4/28. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1012:15 pm
PUS
-
ONT
1 stop22h 25m
China Airlines
Thu 7/3012:45 am
ONT
-
PUS
1 stop18h 30m
China Airlines
Deal found 4/28$1,470
This China Airlines deal was found by Cheapflights users on 4/28. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/58:00 pm
PUS
-
ONT
1 stop38h 40m
China Airlines
Sat 7/2512:45 am
ONT
-
PUS
1 stop18h 30m
China Airlines
Deal found 4/28$1,471

Find flight deals from Busan to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Busan (PUS) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,210
(China Airlines)

One-way from

$750
(SmartFares)

Popular in

February

Cheapest in

June

Average price

$1,051
Provider with most accurate pricing for Busan Gimhae-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Busan Gimhae-Los Angeles flights.
Search Deals
From Busan Gimhae to Ontario
Search Deals
One-way flight from Busan Gimhae to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($134 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Busan to Ontario 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, 2026.
Use the filters below to find and compare flights from Busan to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Wed 9/9

10:30 am-6:40 pm

1 stop24h 10m

Ontario

Sat 9/12

12:45 am-11:15 am

1 stop18h 30m

$1,210

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Tue 9/8

4:30 pm-10:44 pm

2 stops22h 14m

Ontario

Wed 9/16

7:00 am-7:35 pm

2 stops20h 35m

$1,293

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Thu 7/9

10:30 am-6:40 pm

1 stop24h 10m

Ontario

Sat 7/25

12:45 am-11:15 am

1 stop18h 30m

$1,321

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Thu 7/9

10:30 am-6:40 pm

1 stop24h 10m

Ontario

Thu 7/30

12:45 am-11:15 am

1 stop18h 30m

$1,321

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Thu 7/9

10:30 am-6:40 pm

1 stop24h 10m

Ontario

Fri 7/24

12:45 am-11:15 am

1 stop18h 30m

$1,321
Quickest round-trip

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Tue 5/26

10:30 am-6:00 pm

1 stop23h 30m

Ontario

Mon 6/15

12:10 am-11:15 am

1 stop19h 05m

$1,375

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Mon 7/6

10:30 am-6:40 pm

1 stop24h 10m

Ontario

Mon 7/27

12:45 am-11:15 am

1 stop18h 30m

$1,405

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Sun 7/5

8:00 pm-6:40 pm

1 stop38h 40m

Ontario

Thu 7/30

12:45 am-11:15 am

1 stop18h 30m

$1,471

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Tue 9/8

12:15 pm-6:40 pm

1 stop22h 25m

Ontario

Tue 9/15

12:10 am-7:00 pm

1 stop26h 50m

$1,511
Cheapest one-way

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Sat 10/24

10:30 am-6:00 pm

1 stop23h 30m

$750

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 18 resultsSorted by cheapest first
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Best time to book a flight from Busan to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Busan 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.

Related info for your journey

Find useful and relevant information for your journey from Busan to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Busan to Ontario?

    For as low as $1,293, China Airlines can have you in Ontario from Busan in 22h 14m. The distance from Busan to Ontario is about 6004 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Busan to Ontario that include hotel bookings?

    Yes. In addition to deals on Busan to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Busan to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Busan to Ontario.

  • Can I find deals for business class flights from Busan to Ontario?

    Yes. Cheapflights offers flight deals from Busan to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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