ONT - PUS

$455 Find Cheap Flights from Ontario to Busan

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Busan departing on 4/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Busan

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Busan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Busan, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$812
China Airlines
Fri 4/10Tue 5/5
ONT - PUS • 1 stop
Cheapest one-way
$455
China Airlines
Fri 4/10
ONT - PUS • 1 stop
Top airlines
China Airlines
Cheapest • from $812 (round-trip)
China Airlines
Best reviews • 8.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Busan. You'll need at least 1 connection.
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We hope you love your trip to Busan!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Busan (ONT-PUS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Busan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Busan

Fri, Apr 10 - Tue, May 5
China Airlines Logo
12:10 am - 9:30 am
ONT
-
PUS
17h 20m
1 stop
China Airlines Logo
10:30 am - 6:00 pm
PUS
-
ONT
23h 30m
1 stop
$812China Airlines
Tue, Aug 18 - Wed, Aug 26
China Airlines Logo
12:45 am - 7:00 pm
ONT
-
PUS
26h 15m
1 stop
China Airlines Logo
10:30 am - 6:40 pm
PUS
-
ONT
24h 10m
1 stop
$851China Airlines
Sun, May 17 - Mon, May 25
China Airlines Logo
12:10 am - 11:15 am
ONT
-
PUS
19h 05m
1 stop
China Airlines Logo
8:00 pm - 6:00 pm
PUS
-
ONT
38h 00m
1 stop
$853China Airlines
Sun, Apr 12 - Tue, Apr 28
China Airlines Logo
12:10 am - 9:30 am
ONT
-
PUS
17h 20m
1 stop
China Airlines Logo
10:30 am - 6:00 pm
PUS
-
ONT
23h 30m
1 stop
$863China Airlines
Sat, Apr 11 - Tue, Apr 28
China Airlines Logo
12:10 am - 7:00 pm
ONT
-
PUS
26h 50m
1 stop
China Airlines Logo
10:30 am - 6:00 pm
PUS
-
ONT
23h 30m
1 stop
$906China Airlines
Fri, Apr 10 - Mon, May 11
China Airlines Logo
12:10 am - 9:30 am
ONT
-
PUS
17h 20m
1 stop
China Airlines Logo
8:00 pm - 6:00 pm
PUS
-
ONT
38h 00m
1 stop
$929China Airlines
Sun, May 17 - Mon, May 25
Multiple Airlines Logo
12:10 am - 9:30 am
ONT
-
PUS
17h 20m
1 stop
Multiple Airlines Logo
8:00 pm - 11:58 pm
PUS
-
ONT
19h 58m
2 stops
$932Multiple Airlines
Fri, Apr 10 - Mon, May 11
Multiple Airlines Logo
12:10 am - 9:30 am
ONT
-
PUS
17h 20m
1 stop
Multiple Airlines Logo
8:00 pm - 9:45 am
PUS
-
ONT
29h 45m
2 stops
$944Multiple Airlines
Sun, Apr 12 - Wed, Apr 22
China Airlines Logo
12:10 am - 9:30 am
ONT
-
PUS
17h 20m
1 stop
China Airlines Logo
10:30 am - 6:00 pm
PUS
-
ONT
23h 30m
1 stop
$948China Airlines
Tue, Apr 14 - Tue, Apr 28
China Airlines Logo
12:10 am - 7:00 pm
ONT
-
PUS
26h 50m
1 stop
China Airlines Logo
10:30 am - 6:00 pm
PUS
-
ONT
23h 30m
1 stop
$986China Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Busan flights

Get data-powered insights and trends into flights from Ontario to Busan to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Ontario to Busan?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ontario to Busan were found on China Airlines ($812) and Korean Air ($1,271).

Good to know

Cheapest flight$455
Flight from Ontario to Busan

When to book flights from Ontario to Busan

Are your dates flexible? Find out the best times to travel from Ontario to Busan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Busan

  • What is the cheapest flight from Ontario to Busan?

    In the last 3 days, the lowest price for a flight from Ontario to Busan was $455 for a one-way ticket and $812 for a round-trip.

  • Do I need a passport to fly between Ontario and Busan?

    A passport is required to fly from Ontario to Busan.

  • Which aircraft models fly most regularly from Ontario to Busan?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Busan?

    SkyTeam is the only airline alliance operating flights between Ontario and Busan.

  • How does KAYAK find such low prices on flights from Ontario to Busan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Busan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Busan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Busan from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Busan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Busan with an airline and back to Ontario with another airline. Booking your flights between Ontario and PUS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Busan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Busan from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Busan

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Busan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Busan? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
China AirlinesOverall score based on 807 reviews
7.8Food
8.0Comfort
8.5Crew
8.3Boarding
8.0Entertainment
Airline reviews

Flight attendants. Food, entertainment and most of all, be on time.

8.0 ExcellentAnonymous, Dec 2025
PHX - TPE
Read more China Airlines reviews

Flight attendants. Food, entertainment and most of all, be on time.

Very bad. They don’t allow group people to sit together by blocking most of seats and opening only single seat during online checking in. . By doing so, they can rip off customers at the check-in counter by collecting extra money if we want to sit together in the same row.

Hour late but understandable under the conditions. Taoyuan airport could have clearer signs language wise and more staff to help direct people.

Delayed. Not a full flight and whole rows left open with the paid seating. Food was ok. My beef meal only had one cube of beef the rest carrot cubes. Entertainment on personal device but didn’t know about it until the flight was almost done.

We are glad to have used China Airlines for our trip. Continue the good service! Thank you!

The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!

I love my Delta crew, they were so welcoming and helpful.

I absolutely loved my flight from Taipei to LAX. I was originally assigned to a different seat, however one of the stewardess noticed I was uncomfortable in my seat. She offered to move me to a more comfortable setting. Although she didn’t have to do what she did, I am more than grateful and thankful for her doing so. My longer flight felt much more comfortable, just by her taking notice. I really appreciate her.

Overall was a lovely experience. The crew were kind and courteous throughout the entire flight.

Better organization of boarding procedures. Terrible leadership guiding people to gates.

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

Information on your arrival and departure airports