Title: CA $721 Cheap Flights from Seoul (ICN) to Ontario (ONT) - Expedia.ca ![Ontario showing night scenes and street scenes](https://images.trvl-media.com/place/2680/6f6cbfd1-6188-4a75-9ba7-05d8edf0fb1d.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by Ontario Convention & Visitors Bureau / Jon Edwards. ![](https://images.trvl-media.com/place/2680/6f6cbfd1-6188-4a75-9ba7-05d8edf0fb1d.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $721 Cheap Flights from Seoul (ICN) to Ontario (ONT) [View CA $721 flight on Fri, Apr 17, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:ICN,to:ONT,departure:17/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:720.50&airProductToken=AQpuCjQI1YIBEgM4MDYYyGggsnEotsaKAzC7y4oDOEdAAFgBagk2X2Vjb2ZsZXhyCEdMSTBJNlZHCjYI1YIBEgQxNTAzGLJxIK6bASi9zIoDMJjNigM4R0AAWAFqCTZfZWNvZmxleHIIR0xJMEk2VkcSCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAL) ## Popular airlines from Incheon Intl. Airport (ICN) to Los Angeles - Ontario Intl. Airport (ONT) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ICN,to:ONT,departure:01/04/2026TANYT&leg2=from:ONT,to:ICN,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:ICN,to:ONT,departure:01/04/2026TANYT&leg2=from:ONT,to:ICN,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:ICN,to:ONT,departure:01/04/2026TANYT&leg2=from:ONT,to:ICN,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KE.svg) Korean Air [](https://www.expedia.ca/Flights-Search?leg1=from:ICN,to:ONT,departure:01/04/2026TANYT&leg2=from:ONT,to:ICN,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KE"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_CI.svg) China Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ICN,to:ONT,departure:01/04/2026TANYT&leg2=from:ONT,to:ICN,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"CI"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:ICN,to:ONT,departure:01/04/2026TANYT&leg2=from:ONT,to:ICN,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ICN,to:ONT,departure:01/04/2026TANYT&leg2=from:ONT,to:ICN,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap flights from Seoul (ICN) to Ontario (ONT) Prices were available within the past 7 days and start at CA $721 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ## Frequently asked questions ### How much is a flight from ICN to Ontario Airport? ### Do I need to pay a cancellation fee if I cancel my flight from Incheon Intl. Airport (ICN) to Los Angeles - Ontario Intl. Airport (ONT)? ### How do I find cheap flights from Incheon Airport to Los Angeles - Ontario Intl. Airport (ONT) that have flexible change policies? ### How many hours is the flight from Incheon Airport to Los Angeles - Ontario Intl. Airport (ONT)? ### How far is the flight from Incheon Intl. Airport (ICN) to Los Angeles - Ontario Intl. Airport (ONT)? ### Which airlines fly direct from Incheon Intl. Airport (ICN) to ONT? ### Are ICN to Los Angeles - Ontario Intl. Airport (ONT) flight tickets cheaper when they're purchased at the last minute? ## Travel information | Origin airport | Incheon Intl. | | ------------------- | --------------------------- | | Destination airport | Los Angeles - Ontario Intl. | | Distance | 9614 km | ## Book with confidence # Incheon to Los Angeles Flights **The easy way to book your flights from Seoul to Ontario** With Expedia, it’s simple to find and book flights to Ontario from Seoul whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Los Angeles - Ontario Intl., too. Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seoul to Ontario today, tomorrow, or this week. **Save dollars with cheap flights from Incheon Intl., ICN to Los Angeles - Ontario Intl., ONT** Sort your search results by price to find great deals on your flight from Seoul to Ontario—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Ontario from Seoul currently is just rising to . Here are more money-saving tips: - Fly in when flight prices are normally at their lowest - Book about a month to 6 weeks before you travel for the best prices to Ontario - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! **Reasons to choose Expedia for your flight to Ontario from Seoul** Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Ontario with Expedia today. \*Available to Expedia members.