$404 Find Cheap Flights from South Korea to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Cheap Flights from South Korea to Ontario

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from South Korea to Ontario

Mon, Nov 23 - Thu, Feb 18
United Airlines Logo
6:00 pm - 3:33 pmICN  Incheon Intl-ONT Ontario
14h 33m1 stop San Francisco
United Airlines Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$938United Airlines
Thu, Feb 4 - Mon, Feb 8
United Airlines Logo
12:45 pm - 9:57 amICN  Incheon Intl-ONT Ontario
14h 12m1 stop San Francisco
United Airlines Logo
5:00 am - 5:40 amONT  Ontario-ICN Incheon Intl
31h 40m2 stops Denver Intl San Francisco
$946United Airlines
Thu, Nov 26 - Mon, Dec 28
United Airlines Logo
12:45 pm - 10:43 amICN  Incheon Intl-ONT Ontario
14h 58m1 stop San Francisco
United Airlines Logo
4:00 pm - 5:40 amONT  Ontario-ICN Incheon Intl
20h 40m1 stop San Francisco
$947United Airlines
Thu, Nov 19 - Tue, Nov 24
United Airlines Logo
12:45 pm - 12:29 pmICN  Incheon Intl-ONT Ontario
16h 44m1 stop San Francisco
United Airlines Logo
6:37 pm - 5:40 amONT  Ontario-ICN Incheon Intl
18h 03m1 stop San Francisco
$949United Airlines
Thu, Dec 24 - Mon, Dec 28
United Airlines Logo
12:45 pm - 5:46 pmICN  Incheon Intl-ONT Ontario
22h 01m1 stop San Francisco
United Airlines Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$951United Airlines
Fri, Nov 20 - Mon, Nov 23
United Airlines Logo
12:45 pm - 12:29 pmICN  Incheon Intl-ONT Ontario
16h 44m1 stop San Francisco
United Airlines Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$956United Airlines
Wed, Nov 25 - Sun, Dec 6
United Airlines Logo
6:00 pm - 8:15 pmICN  Incheon Intl-ONT Ontario
19h 15m1 stop San Francisco
United Airlines Logo
6:40 pm - 5:40 amONT  Ontario-ICN Incheon Intl
18h 00m1 stop San Francisco
$964United Airlines
Tue, Dec 8 - Sun, Jan 3
United Airlines Logo
6:00 pm - 3:35 pmICN  Incheon Intl-ONT Ontario
14h 35m1 stop San Francisco
United Airlines Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$973United Airlines
Wed, Nov 25 - Sun, Dec 6
United Airlines Logo
12:45 pm - 12:33 pmICN  Incheon Intl-ONT Ontario
40h 48m2 stops San Francisco Denver Intl
United Airlines Logo
11:20 am - 5:40 amONT  Ontario-ICN Incheon Intl
25h 20m1 stop San Francisco
$975United Airlines
Sun, Nov 22 - Mon, Dec 7
Lufthansa Logo
6:00 pm - 8:15 pmICN  Incheon Intl-ONT Ontario
19h 15m1 stop San Francisco
Lufthansa Logo
6:40 pm - 5:40 amONT  Ontario-ICN Incheon Intl
18h 00m1 stop San Francisco
$980Lufthansa
Booking Insights

KAYAK's insights & trends for flights to Ontario

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

What are the most popular airlines flying to Ontario?

The most popular airline among KAYAK users flying to Ontario is AIR PREMIA, followed by Asiana Airlines and United Airlines.

Good to know

Cheapest flight

$404
Flight from Incheon to Ontario

FAQs - booking Ontario flights

  • How far is Ontario Airport from central Ontario?

    Central Ontario is 3 miles away from Ontario Airport.

  • What is the name of Ontario’s airport?

    There is only 1 airport in Ontario, called Ontario Airport (ONT). It can also be referred to as Ontario or Ontario Intl.

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

    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 to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to 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 to Ontario?

    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 Ontario with an airline and back with another airline.

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

    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 Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Ontario are there each week?

    Each week there are around 881 direct flights from within South Korea to Ontario. The most common day for departures is Sunday, with 20% of flights taking off on this day.

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

More options for your flight to Ontario