$618+ Cheap flights from Busan (PUS) to Ontario (ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
PUS — ONT
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Busan to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Busan to Ontario
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Best
Last-minute
One-way
Cheapest flights from Busan to OntarioExplore 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 October 25, 2026.
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 October 25, 2026.
This oojo deal was found by Cheapflights users on 10/21. 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.
Fri 12/2511:50 am -
1 stop22h 15m
Sat 1/210:50 pm -
1 stop19h 00m
Deal found 10/21![China Airlines logo]()
$1,051
This China Airlines deal was found by Cheapflights users on 10/24. 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 12/2811:50 am -
1 stop22h 15m
Sat 1/210:50 pm -
1 stop27h 00m
Deal found 10/24![China Airlines logo]()
$1,239
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Mon 12/288:45 am -
2 stops25h 20m
Sat 1/210:50 pm -
1 stop19h 00m
Deal found 10/24![Multiple Airlines logo]()
$1,578
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2512:00 pm -
2 stops25h 03m
Sat 1/26:00 am -
2 stops33h 10m
Deal found 10/21![Alaska Airlines logo]()
$1,816
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2112:00 pm -
2 stops28h 31m
Sat 11/286:00 am -
2 stops33h 10m
Deal found 10/23![Alaska Airlines logo]()
$1,862
Best flights from Busan to OntarioDiscover carefully curated flight deals from Busan to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Busan to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This WhyPayMore deal was found by Cheapflights users on 10/22. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2311:50 am -
1 stop22h 15m
Wed 1/2710:50 pm -
1 stop27h 00m
Deal found 10/22![China Airlines logo]()
$1,196
This WhyPayMore deal was found by Cheapflights users on 10/22. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2311:50 am -
1 stop22h 15m
Wed 1/274:16 pm -
2 stops26h 14m
Deal found 10/22![Multiple Airlines logo]()
$1,380
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/154:10 pm -
2 stops40h 10m
Wed 1/274:16 pm -
2 stops35h 29m
Deal found 10/23![Alaska Airlines logo]()
$1,597
This China Airlines deal was found by Cheapflights users on 10/24. 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.
Tue 1/1211:50 am -
1 stop22h 15m
Sat 1/1610:50 pm -
1 stop27h 00m
Deal found 10/24![China Airlines logo]()
$1,196
This China Airlines deal was found by Cheapflights users on 10/24. 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 12/2811:50 am -
1 stop22h 15m
Sat 1/210:50 pm -
1 stop27h 00m
Deal found 10/24![China Airlines logo]()
$1,239
This China Airlines deal was found by Cheapflights users on 10/23. 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 1/2711:50 am -
1 stop22h 15m
Sun 1/3110:50 pm -
1 stop27h 00m
Deal found 10/23![China Airlines logo]()
$1,437
This WhyPayMore deal was found by Cheapflights users on 10/25. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/1311:50 am -
1 stop22h 15m
Sat 2/2010:50 pm -
1 stop19h 00m
Deal found 10/25![China Airlines logo]()
$1,532
Last-minute flights from Busan to OntarioDiscover last-minute flight deals from Busan to Ontario. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Busan to Ontario. Data last updated October 25, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2112:00 pm -
2 stops28h 31m
Sat 11/286:00 am -
2 stops33h 10m
Deal found 10/23![Alaska Airlines logo]()
$1,862
One-way flights from Busan to OntarioSearch for one-way flight options from Busan to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Busan to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This SmartFares deal was found by Cheapflights users on 10/23. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1711:50 am -
1 stop22h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![China Airlines logo]()
$618
This AranGrant deal was found by Cheapflights users on 10/22. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/296:55 pm -
1 stop38h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![STARLUX Airlines logo]()
$2,358
This BusinessClass deal was found by Cheapflights users on 10/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2212:30 pm -
1 stop20h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![STARLUX Airlines logo]()
$2,439
This China Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 12/311:50 am -
1 stop22h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![China Airlines logo]()
$3,009
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/312:00 pm -
2 stops27h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Alaska Airlines logo]()
$4,015
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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,051 (oojo) |
One-way from | $618 (SmartFares) |
Popular in | December |
Cheapest in | June |
Average price | $1,047 |
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 7,457,451 searches. Data last updated October 25, 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
Cheapest round-trip
BusanOntario
PUS Busan Gimhae - ONT Ontario
PUSONT
Busan Gimhae
Wed 3/17
11:50 am-6:05 pm
1 stop22h 15m
Ontario
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$618
BusanOntario
PUS Busan Gimhae - ONT Ontario
PUSONT
Busan Gimhae
Sat 1/23
11:50 am-5:05 pm
1 stop22h 15m
Ontario
Wed 1/27
10:50 pm-6:50 pm
1 stop27h 00m
$1,196
BusanOntario
PUS Busan Gimhae - ONT Ontario
PUSONT
Busan Gimhae
Tue 1/12
11:50 am-5:05 pm
1 stop22h 15m
Ontario
Sat 1/16
10:50 pm-6:50 pm
1 stop27h 00m
$1,196
BusanOntario
PUS Busan Gimhae - ONT Ontario
PUSONT
Busan Gimhae
Mon 12/28
11:50 am-5:05 pm
1 stop22h 15m
Ontario
Sat 1/2
10:50 pm-6:50 pm
1 stop27h 00m
$1,239
BusanOntario
PUS Busan Gimhae - ONT Ontario
PUSONT
Busan Gimhae
Sat 1/23
11:50 am-5:05 pm
1 stop22h 15m
Ontario
Wed 1/27
4:16 pm-11:30 am
2 stops26h 14m
$1,380
BusanOntario
PUS Busan Gimhae - ONT Ontario
PUSONT
Busan Gimhae
Wed 1/27
11:50 am-5:05 pm
1 stop22h 15m
Ontario
Sun 1/31
10:50 pm-6:50 pm
1 stop27h 00m
$1,437
BusanOntario
PUS Busan Gimhae - ONT Ontario
PUSONT
Busan Gimhae
Sat 2/13
11:50 am-5:05 pm
1 stop22h 15m
Ontario
Sat 2/20
10:50 pm-10:50 am
1 stop19h 00m
$1,532
BusanOntario
PUS Busan Gimhae - ONT Ontario
PUSONT
Busan Gimhae
Fri 1/15
4:10 pm-3:20 pm
2 stops40h 10m
Ontario
Wed 1/27
4:16 pm-8:45 pm
2 stops35h 29m
$1,597
BusanOntario
PUS Busan Gimhae - ONT Ontario
PUSONT
Busan Gimhae
Sun 11/29
6:55 pm-3:55 pm
1 stop38h 00m
Ontario
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$2,358
Quickest round-trip
BusanOntario
PUS Busan Gimhae - ONT Ontario
PUSONT
Busan Gimhae
Tue 12/22
12:30 pm-3:55 pm
1 stop20h 25m
Ontario
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$2,439
Showing 1-10 of 12 resultsSorted by cheapest first
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.
PUS-ONT
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.
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