$416+ Cheap flights from Ontario (ONT) to Incheon Intl (ICN)
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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ICN
Jul 14 — Jul 211
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Incheon Intl with Cheapflights
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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
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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 Ontario to Incheon Intl
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Cheapest flights from Ontario to Incheon IntlExplore the most affordable flight options available from Ontario to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2026.
Explore the most affordable flight options available from Ontario to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2026.
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:38 am
ONT
- ICN
1 stop18h 02m
Multiple Airlines
Sun 10/187:15 pm
ICN
- ONT
1 stop17h 02m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$957
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Sat 8/86:00 pm
ICN
- ONT
2 stops30h 03m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,024
This SmartFares deal was found by Cheapflights users on 6/10. 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.
Fri 7/102:05 pm
ONT
- ICN
1 stop35h 25m
Alaska Airlines
Fri 7/177:35 pm
ICN
- ONT
1 stop16h 57m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$1,069
This SmartFares deal was found by Cheapflights users on 6/11. 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.
Tue 10/1312:10 am
ONT
- ICN
1 stop27h 25m
China Airlines
Sat 10/2412:35 pm
ICN
- ONT
1 stop21h 25m
China Airlines
Deal found 6/11![China Airlines logo]()
$1,094
This SmartFares deal was found by Cheapflights users on 6/10. 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.
Mon 9/2112:10 am
ONT
- ICN
1 stop27h 25m
China Airlines
Tue 10/1312:35 pm
ICN
- ONT
1 stop21h 25m
China Airlines
Deal found 6/10![China Airlines logo]()
$1,096
This Booking.com deal was found by Cheapflights users on 6/9. 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.
Tue 9/1512:12 pm
ONT
- ICN
1 stop37h 18m
Alaska Airlines
Wed 9/307:35 pm
ICN
- ONT
1 stop15h 28m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$1,097
This Booking.com deal was found by Cheapflights users on 6/10. 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.
Wed 8/196:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Wed 9/167:35 pm
ICN
- ONT
1 stop15h 28m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$1,098
This Booking.com deal was found by Cheapflights users on 6/9. 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.
Wed 8/196:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Wed 9/27:35 pm
ICN
- ONT
1 stop15h 28m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$1,099
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 8/266:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Thu 9/177:35 pm
ICN
- ONT
1 stop15h 28m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$1,106
This Booking.com deal was found by Cheapflights users on 6/13. 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 7/59:20 pm
ONT
- ICN
1 stop28h 10m
Alaska Airlines
Mon 7/137:35 pm
ICN
- ONT
1 stop31h 39m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$1,111
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Sun 8/307:59 pm
ONT
- ICN
1 stop29h 31m
Alaska Airlines
Thu 9/177:35 pm
ICN
- ONT
1 stop19h 49m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$1,113
This Booking.com deal was found by Cheapflights users on 6/10. 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.
Tue 7/72:05 pm
ONT
- ICN
1 stop35h 25m
Alaska Airlines
Fri 7/177:35 pm
ICN
- ONT
1 stop16h 57m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$1,114
Best flights from Ontario to Incheon IntlDiscover carefully curated flight deals from Ontario to Incheon Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 14, 2026.
Discover carefully curated flight deals from Ontario to Incheon Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 14, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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.
Mon 9/216:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Wed 9/307:35 pm
ICN
- ONT
1 stop15h 28m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$1,106
This Qatar Airways deal was found by Cheapflights users on 6/12. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:32 pm
ONT
- ICN
2 stops52h 43m
Multiple Airlines
Wed 12/212:20 am
ICN
- ONT
2 stops39h 19m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,166
This China Airlines deal was found by Cheapflights users on 6/9. 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.
Sat 8/812:45 am
ONT
- ICN
1 stop18h 45m
China Airlines
Wed 8/1912:45 pm
ICN
- ONT
1 stop21h 55m
China Airlines
Deal found 6/9![China Airlines logo]()
$1,184
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:00 am
ONT
- ICN
1 stop17h 00m
United Airlines
Wed 9/211:30 am
ICN
- ONT
2 stops25h 23m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,210
This Qatar Airways deal was found by Cheapflights users on 6/9. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:12 pm
ONT
- ICN
2 stops36h 53m
Qatar Airways
Fri 10/91:20 am
ICN
- ONT
2 stops38h 22m
Qatar Airways
Deal found 6/9![Qatar Airways logo]()
$1,260
This China Airlines deal was found by Cheapflights users on 6/9. 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.
Sat 8/812:45 am
ONT
- ICN
1 stop26h 20m
China Airlines
Thu 8/2012:45 pm
ICN
- ONT
1 stop21h 55m
China Airlines
Deal found 6/9![China Airlines logo]()
$1,184
This United Airlines deal was found by Cheapflights users on 6/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:00 am
ONT
- ICN
2 stops31h 20m
United Airlines
Mon 9/1411:30 am
ICN
- ONT
1 stop16h 42m
United Airlines
Deal found 6/13![United Airlines logo]()
$1,210
This China Airlines deal was found by Cheapflights users on 6/12. 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 8/2012:45 am
ONT
- ICN
1 stop26h 20m
China Airlines
Thu 8/2712:45 pm
ICN
- ONT
1 stop21h 55m
China Airlines
Deal found 6/12![China Airlines logo]()
$1,184
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:00 am
ONT
- ICN
1 stop17h 00m
United Airlines
Thu 10/2911:45 am
ICN
- ONT
1 stop22h 02m
United Airlines
Deal found 6/11![United Airlines logo]()
$1,256
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:00 am
ONT
- ICN
1 stop17h 00m
United Airlines
Mon 8/314:50 pm
ICN
- ONT
1 stop17h 21m
United Airlines
Deal found 6/11![United Airlines logo]()
$1,256
This China Airlines deal was found by Cheapflights users on 6/11. 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 10/612:10 am
ONT
- ICN
1 stop27h 25m
China Airlines
Fri 11/2712:30 pm
ICN
- ONT
1 stop21h 20m
China Airlines
Deal found 6/11![China Airlines logo]()
$1,272
This United Airlines deal was found by Cheapflights users on 6/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:39 pm
ONT
- ICN
1 stop17h 41m
United Airlines
Mon 7/204:50 pm
ICN
- ONT
1 stop17h 04m
United Airlines
Deal found 6/13![United Airlines logo]()
$1,276
Last-minute flights from Ontario to Incheon IntlDiscover last-minute flight deals from Ontario to Incheon Intl. Data last updated June 14, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Incheon Intl. Data last updated June 14, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 6/13. 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 7/59:20 pm
ONT
- ICN
1 stop28h 10m
Alaska Airlines
Mon 7/137:35 pm
ICN
- ONT
1 stop31h 39m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$1,111
This Booking.com deal was found by Cheapflights users on 6/10. 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.
Tue 7/72:05 pm
ONT
- ICN
1 stop35h 25m
Alaska Airlines
Fri 7/177:35 pm
ICN
- ONT
1 stop16h 57m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$1,114
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 7/75:26 pm
ONT
- ICN
1 stop32h 04m
Alaska Airlines
Mon 7/137:35 pm
ICN
- ONT
1 stop16h 57m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$1,127
This Booking.com deal was found by Cheapflights users on 6/10. 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.
Wed 7/86:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Mon 7/137:35 pm
ICN
- ONT
1 stop19h 36m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$1,113
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 7/86:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Sat 7/187:35 pm
ICN
- ONT
1 stop19h 36m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$1,120
This Trip.com deal was found by Cheapflights users on 6/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Wed 8/268:05 pm
ICN
- ONT
1 stop38h 35m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$1,202
This SmartFares deal was found by Cheapflights users on 6/10. 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.
Fri 7/102:05 pm
ONT
- ICN
1 stop35h 25m
Alaska Airlines
Fri 7/177:35 pm
ICN
- ONT
1 stop16h 57m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$1,069
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Sat 8/86:00 pm
ICN
- ONT
2 stops30h 03m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,024
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:00 am
ONT
- ICN
1 stop17h 00m
United Airlines
Sun 8/234:50 pm
ICN
- ONT
1 stop17h 21m
United Airlines
Deal found 6/10![United Airlines logo]()
$1,256
This KAYAK deal was found by Cheapflights users on 6/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:00 am
ONT
- ICN
1 stop17h 00m
Asiana Airlines
Mon 8/311:30 am
ICN
- ONT
1 stop16h 42m
Asiana Airlines
Deal found 6/9![Asiana Airlines logo]()
$1,258
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:00 am
ONT
- ICN
1 stop17h 00m
United Airlines
Mon 8/2411:30 am
ICN
- ONT
1 stop16h 42m
United Airlines
Deal found 6/10![United Airlines logo]()
$1,206
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 7/316:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Sun 10/47:35 pm
ICN
- ONT
1 stop14h 25m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$1,106
One-way flights from Ontario to Incheon IntlSearch for one-way flight options from Ontario to Incheon Intl. Find affordable one-way fares based on user searches. Data last updated June 14, 2026.
Search for one-way flight options from Ontario to Incheon Intl. Find affordable one-way fares based on user searches. Data last updated June 14, 2026.
This Trip.com deal was found by Cheapflights users on 6/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$416
This Trip.com deal was found by Cheapflights users on 6/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$430
This Trip.com deal was found by Cheapflights users on 6/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$440
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$487
This Trip.com deal was found by Cheapflights users on 6/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/138:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$491
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$535
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 7/206:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$538
This Booking.com deal was found by Cheapflights users on 6/11. 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 7/266:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$539
Find flight deals from Ontario to Incheon Intl
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Incheon Intl (ICN). 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 June 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $957 (Trip.com) |
One-way from | $416 (Trip.com) |
Popular in | December |
Cheapest in | September |
Average price | $1,235 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Incheon Intl 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 June 14, 2026.
Use the filters below to find and compare flights from Ontario to Incheon Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Mon 9/21
6:02 am-5:30 pm
1 stop19h 28m
Incheon Intl
Wed 9/30
7:35 pm-7:03 pm
1 stop15h 28m
$1,106
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Thu 11/26
7:32 pm-5:15 pm
2 stops52h 43m
Incheon Intl
Wed 12/2
12:20 am-10:39 pm
2 stops39h 19m
$1,166
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Sat 8/8
12:45 am-11:30 am
1 stop18h 45m
Incheon Intl
Wed 8/19
12:45 pm-6:40 pm
1 stop21h 55m
$1,184
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Sat 8/8
12:45 am-7:05 pm
1 stop26h 20m
Incheon Intl
Thu 8/20
12:45 pm-6:40 pm
1 stop21h 55m
$1,184
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Thu 8/20
12:45 am-7:05 pm
1 stop26h 20m
Incheon Intl
Thu 8/27
12:45 pm-6:40 pm
1 stop21h 55m
$1,184
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Mon 8/31
6:00 am-3:00 pm
1 stop17h 00m
Incheon Intl
Wed 9/2
11:30 am-8:53 pm
2 stops25h 23m
$1,210
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Mon 8/24
5:00 am-4:20 am
2 stops31h 20m
Incheon Intl
Mon 9/14
11:30 am-12:12 pm
1 stop16h 42m
$1,210
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Fri 10/16
6:00 am-3:00 pm
1 stop17h 00m
Incheon Intl
Thu 10/29
11:45 am-5:47 pm
1 stop22h 02m
$1,256
Quickest round-trip
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Fri 7/31
6:00 am-3:00 pm
1 stop17h 00m
Incheon Intl
Mon 8/31
4:50 pm-6:11 pm
1 stop17h 21m
$1,256
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Mon 9/14
12:12 pm-5:05 pm
2 stops36h 53m
Incheon Intl
Fri 10/9
1:20 am-11:42 pm
2 stops38h 22m
$1,260
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Ontario to Incheon Intl
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 Incheon Intl in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Incheon Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Incheon Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Incheon Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Incheon Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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-Incheon Intl Airport 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 Incheon Intl
Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from Ontario with our price prediction graph.
ONT-ICN
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.
Reviews of airlines servicing Incheon Intl
Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated June 14, 2026.
Get a feel of what it's like to fly with China Airlines from Ontario to Incheon Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.5
Overall
8.3
Entertainment
8.0
Boarding
8.3
Food
7.8
Reviews
1 / 20
10.0
ExcellentA,Feb 2026
SEA - TPE
Comfort
8.0
Crew
8.5
Overall
8.3
Entertainment
8.0
Boarding
8.3
Food
7.8
Reviews
1 / 20
10.0
ExcellentA,Feb 2026
SEA - TPE
Related info for your journey
Find useful and relevant information for your journey from Ontario to Incheon Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Incheon Intl Airport?
Book flights to Incheon Intl Airport if you plan to visit one of these locationsSeongnam
Suwon
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Other flights to Incheon Intl
Explore flights to Incheon Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 14, 2026.
Ontario and Incheon Intl flights
Browse other Ontario and Incheon Intl flight options. Last updated on June 14, 2026.
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Top airline flying from Ontario to Incheon Intl
Discover the top airline that operate flights from Ontario to Incheon Intl. 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 June 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$860 | Average$989 | FlexibilityNo cancel fee | On-time70% |