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$643+ 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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
PUS — ONT
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap 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, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,129
(Booking.com)

One-way from

$643
(oojo)

Popular in

July

Cheapest in

March

Average price

$883
Provider with most accurate pricing for Busan Gimhae-Ontario flight deals.
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Provider most trusted by Cheapflights users for Busan Gimhae-Ontario flights.
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From Busan Gimhae to Ontario
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One-way flight from Busan Gimhae to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find 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, 2025.

This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1312:15 pmPUS - ONT
1 stop21h 45mChina Airlines
Thu 6/1912:10 amONT - PUS
1 stop26h 50mChina Airlines
Deal found 4/29$1,129
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/132:15 pmPUS - ONT
1 stop18h 50mMultiple Airlines
Fri 6/2011:10 pmONT - PUS
1 stop24h 20mMultiple Airlines
Deal found 4/29$1,393
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/137:00 amPUS - ONT
2 stops31h 46mDelta
Fri 6/205:50 pmONT - PUS
2 stops34h 55mDelta
Deal found 4/29$1,428

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, 2025.
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

Fri 6/13

12:15 pm-6:00 pm

1 stop21h 45m

Ontario

Thu 6/19

12:10 am-7:00 pm

1 stop26h 50m

$1,129

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Fri 6/13

2:15 pm-5:05 pm

1 stop18h 50m

Ontario

Fri 6/20

11:10 pm-3:30 pm

1 stop24h 20m

$1,393

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Fri 6/13

7:00 am-10:46 pm

2 stops31h 46m

Ontario

Fri 6/20

5:50 pm-8:45 pm

2 stops34h 55m

$1,428

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Sat 6/7

10:20 am-6:00 pm

1 stop23h 40m

$643

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Sat 6/7

7:45 am-5:05 pm

2 stops25h 20m

$664

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Sat 6/14

8:45 am-10:46 pm

2 stops30h 01m

$998

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Compare providers for flights from Busan to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Busan to Ontario in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Busan-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Busan-Ontario flight deals on Cheapflights vs. FlightHub >95% 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 eDreams the most. eDreams 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, August is the cheapest month in which you can book a flight from Busan to Ontario (average of $246). Flying from Busan to Ontario in March is currently the most expensive (average of $328). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated May 1, 2025.
Korean Air
8.4
Very good
1,069 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Korean Air
8.4
Very good
1,069 reviews
Korean Air
8.4
Very good
1,069 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
China Airlines
8.3
Very good
732 reviews
Korean Air
8.4
Very good
1,069 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Delta
8.0
Very good
7,934 reviews
Korean Air
8.4
Very good
1,069 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

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.

  • 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, August is the cheapest month in which you can book a flight from Busan to Ontario (average of $246). Flying from Busan to Ontario in March is currently the most expensive (average of $328). 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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Top airline flying from Busan to Ontario

Discover the top airline that operate flights from Busan to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$978Average$1,146FlexibilityNo cancel feeOn-time70%

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