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Busan

$672+ Cheap flights from Ontario (ONT) to Busan (PUS)

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PUS
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Ontario to Busan

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Busan (PUS). 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

$1,386
(oojo)

One-way from

$672
(Trip.com)

Popular in

July

Cheapest in

October

Average price

$1,454
Provider with most accurate pricing for Ontario-Busan Gimhae flight deals.
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Provider most trusted by Cheapflights users for Ontario-Busan Gimhae flights.
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From Ontario to Busan Gimhae
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One-way flight from Ontario to Busan Gimhae
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Highest demand for flights based on searches. 26% potential increase in price ($474 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($64 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 Ontario to Busan

Cheapest flights from Ontario to Busan
Explore the most affordable flight options available from Ontario to Busan. 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.
Sun 10/1212:10 amONT - PUS
1 stop26h 50mChina Airlines
Mon 10/2012:15 pmPUS - ONT
1 stop21h 45mChina Airlines
Deal found 4/29$978
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:00 amONT - PUS
2 stops21h 35mMultiple Airlines
Sat 9/2012:15 pmPUS - ONT
1 stop21h 45mMultiple Airlines
Deal found 4/28$1,428
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:00 amONT - PUS
2 stops20h 20mDelta
Sat 9/208:05 amPUS - ONT
2 stops30h 37mDelta
Deal found 4/28$1,533
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:00 amONT - PUS
2 stops22h 35mKorean Air
Sat 10/1810:45 amPUS - ONT
2 stops22h 32mKorean Air
Deal found 4/29$1,846

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Busan 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 Ontario to Busan that are best for you.

Fly from

Ontario

Fly to

Busan

Route

Depart

Return

Price

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Sun 10/12

12:10 am-7:00 pm

1 stop26h 50m

Busan Gimhae

Mon 10/20

12:15 pm-6:00 pm

1 stop21h 45m

$978

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Thu 9/11

6:00 am-7:35 pm

2 stops21h 35m

Busan Gimhae

Sat 9/20

12:15 pm-6:00 pm

1 stop21h 45m

$1,428

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Thu 9/11

6:00 am-6:20 pm

2 stops20h 20m

Busan Gimhae

Sat 9/20

8:05 am-10:42 pm

2 stops30h 37m

$1,533

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Thu 10/9

6:00 am-8:35 pm

2 stops22h 35m

Busan Gimhae

Sat 10/18

10:45 am-5:17 pm

2 stops22h 32m

$1,846

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Thu 5/8

12:10 am-6:10 am

1 stop38h 00m

$672

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Mon 5/5

12:10 am-7:00 pm

1 stop26h 50m

$678

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Wed 5/7

6:00 am-7:35 pm

2 stops21h 35m

$971

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Wed 5/21

6:00 am-9:35 pm

2 stops23h 35m

$3,226

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from Ontario to Busan

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 Ontario to Busan in May.
ProviderPrice AccuracyTrust Score*
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 Ontario-Busan flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Busan flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Busan flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Busan 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 Ontario-Busan 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 Ontario to Busan

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

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Busan (average of $1,166). Flying from Ontario to Busan in December is currently the most expensive (average of $2,247). 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 Busan by month

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

In terms of precipitation, rainfall in Busan ranges from 0.9 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. December is typically the driest time to visit Busan when rainfall is around 0.9 in.

Temperature in Busan by month

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

If weather is an important factor for your trip to Busan, 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 January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Busan

Get insights into the airlines that provide service to Busan. 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 Busan. Reviews last updated May 1, 2025.
Japan Airlines
8.3
Very good
1,464 reviews

Overall

8.3

Entertainment

7.8

Crew

8.7

Boarding

8.4

Food

7.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Japan Airlines
8.3
Very good
1,464 reviews
Japan Airlines
8.3
Very good
1,464 reviews

Overall

8.3

Entertainment

7.8

Crew

8.7

Boarding

8.4

Food

7.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
China Airlines
8.3
Very good
732 reviews
Japan Airlines
8.3
Very good
1,464 reviews

Overall

8.3

Entertainment

7.8

Crew

8.7

Boarding

8.4

Food

7.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Delta
8.0
Very good
7,934 reviews
Japan Airlines
8.3
Very good
1,464 reviews

Overall

8.3

Entertainment

7.8

Crew

8.7

Boarding

8.4

Food

7.7

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Related info for your journey

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

  • What is the cheapest airline to fly from Ontario to Busan round-trip?

    Cheapflights users have booked flights from Ontario to Busan round-trip from $1,386.

  • What are the cheapest airlines to fly from Ontario to Busan one-way?

    The cheapest airline one-way is China Airlines, with whom users have recently found tickets for as low as $678. However, be on the lookout for offers from Delta and Japan Airlines, as they are both options that can get you from Ontario to Busan for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Busan 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 Ontario to Busan?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Busan (average of $1,166). Flying from Ontario to Busan in December is currently the most expensive (average of $2,247). 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 Ontario to Busan

Discover the top airline that operate flights from Ontario to Busan. 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$1,023Average$1,080FlexibilityNo cancel feeOn-time70%

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