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$473+ 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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
PUS — ONT
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This China Airlines deal was found by Cheapflights users on 1/27. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1110:30 am
PUS
-
ONT
1 stop23h 30m
China Airlines
Mon 4/2012:10 am
ONT
-
PUS
1 stop19h 05m
China Airlines
Deal found 1/27$1,184
This China Airlines deal was found by Cheapflights users on 1/28. 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 2/27:50 pm
PUS
-
ONT
1 stop38h 00m
China Airlines
Mon 2/910:50 pm
ONT
-
PUS
1 stop27h 00m
China Airlines
Deal found 1/28$1,190
This China Airlines deal was found by Cheapflights users on 1/28. 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 2/27:50 pm
PUS
-
ONT
1 stop38h 00m
China Airlines
Tue 3/3112:10 am
ONT
-
PUS
1 stop26h 50m
China Airlines
Deal found 1/28$1,396
This China Airlines deal was found by Cheapflights users on 1/26. 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.
Fri 2/277:50 pm
PUS
-
ONT
1 stop38h 00m
China Airlines
Tue 3/310:50 pm
ONT
-
PUS
1 stop19h 00m
China Airlines
Deal found 1/26$1,503
This China Airlines deal was found by Cheapflights users on 1/28. 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 3/211:50 am
PUS
-
ONT
1 stop22h 00m
China Airlines
Tue 3/3112:10 am
ONT
-
PUS
1 stop26h 50m
China Airlines
Deal found 1/28$1,602
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/267:50 pm
PUS
-
ONT
1 stop38h 00m
China Airlines
Tue 3/3112:10 am
ONT
-
PUS
1 stop26h 50m
China Airlines
Deal found 1/28$1,651
This Japan Airlines deal was found by Cheapflights users on 1/26. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/279:25 am
PUS
-
ONT
2 stops22h 43m
Japan Airlines
Tue 3/36:14 am
ONT
-
PUS
2 stops22h 46m
Japan Airlines
Deal found 1/26$3,273

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 January 29, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$1,184
(China Airlines)

One-way from

$473
(SmartFares)

Popular in

January

Cheapest in

March

Average price

$1,355
Provider with most accurate pricing for Busan Gimhae-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Busan Gimhae-Ontario 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. 4% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 29, 2026.
Use the filters below to find and compare flights from Busan to Ontario that are best for you.

Fly from

Busan

Fly to

Ontario

Route

Depart

Return

Price

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Sat 4/11

10:30 am-6:00 pm

1 stop23h 30m

Ontario

Mon 4/20

12:10 am-11:15 am

1 stop19h 05m

$1,184

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Fri 2/27

7:50 pm-4:50 pm

1 stop38h 00m

Ontario

Tue 3/3

10:50 pm-10:50 am

1 stop19h 00m

$1,503

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Mon 3/2

11:50 am-4:50 pm

1 stop22h 00m

Ontario

Tue 3/31

12:10 am-7:00 pm

1 stop26h 50m

$1,602

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Thu 2/26

7:50 pm-4:50 pm

1 stop38h 00m

Ontario

Tue 3/31

12:10 am-7:00 pm

1 stop26h 50m

$1,651

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Fri 2/27

9:25 am-3:08 pm

2 stops22h 43m

Ontario

Tue 3/3

6:14 am-10:00 pm

2 stops22h 46m

$3,273

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Thu 6/18

7:15 am-6:00 pm

2 stops26h 45m

$578

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Sun 4/5

9:20 am-6:13 pm

2 stops24h 53m

$3,260

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Sun 4/5

12:15 pm-6:00 pm

1 stop21h 45m

$5,749

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

  • Most accurate provider: When it comes to deals on Busan-Ontario flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Busan-Ontario flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Busan-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Busan-Ontario flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Busan-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Cheapflights Insights

Everything you need to know about your flight from Busan to Ontario

What is the cheapest month to book a flight from Busan to Ontario?

Currently, March is the cheapest month in which you can book a flight from Busan to Ontario (average of $592). Flying from Busan to Ontario in January is currently the most expensive (average of $968). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 $1,184, China Airlines can have you in Ontario from Busan in 23h 30m. The distance from Busan to Ontario is about 6004 mi.

  • 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.

  • What is the cheapest month to book a flight from Busan to Ontario?

    Currently, March is the cheapest month in which you can book a flight from Busan to Ontario (average of $592). Flying from Busan to Ontario in January is currently the most expensive (average of $968). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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