$379+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ICN
Jul 23 — Jul 301
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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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 23, 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 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:13 pm
ONT
- ICN
1 stop38h 27m
Multiple Airlines
Mon 9/77:15 pm
ICN
- ONT
1 stop34h 48m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$956
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:13 pm
ONT
- ICN
1 stop38h 27m
Multiple Airlines
Tue 9/88:30 pm
ICN
- ONT
2 stops57h 33m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$964
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:13 pm
ONT
- ICN
1 stop38h 27m
Multiple Airlines
Wed 9/97:15 pm
ICN
- ONT
1 stop34h 45m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$973
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:13 pm
ONT
- ICN
1 stop38h 27m
Multiple Airlines
Thu 9/109:45 am
ICN
- ONT
2 stops26h 32m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$1,022
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:13 pm
ONT
- ICN
1 stop38h 27m
Multiple Airlines
Thu 9/1012:30 am
ICN
- ONT
1 stop32h 35m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$1,024
This Kiwi.com deal was found by Cheapflights users on 6/19. 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.
Sun 8/3011:15 am
ONT
- ICN
2 stops39h 30m
Multiple Airlines
Wed 9/167:15 pm
ICN
- ONT
1 stop34h 45m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$1,044
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:48 am
ONT
- ICN
1 stop20h 52m
Multiple Airlines
Wed 9/97:15 pm
ICN
- ONT
1 stop34h 45m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$1,060
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/134:34 pm
ONT
- ICN
2 stops34h 11m
Multiple Airlines
Mon 8/247:15 pm
ICN
- ONT
1 stop34h 48m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$1,063
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:13 pm
ONT
- ICN
1 stop38h 27m
Multiple Airlines
Sat 9/59:05 am
ICN
- ONT
1 stop24h 00m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$1,071
This Trip.com deal was found by Cheapflights users on 6/20. 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 8/108:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Sat 8/156:00 pm
ICN
- ONT
2 stops21h 50m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$1,073
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 23, 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 23, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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.
Wed 9/236:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Mon 10/197:35 pm
ICN
- ONT
1 stop14h 28m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$1,106
This China Airlines deal was found by Cheapflights users on 6/21. 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.
Wed 10/1412:10 am
ONT
- ICN
1 stop19h 05m
China Airlines
Thu 10/2912:30 pm
ICN
- ONT
1 stop21h 20m
China Airlines
Deal found 6/21![China Airlines logo]()
$1,155
This United Airlines deal was found by Cheapflights users on 6/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:00 am
ONT
- ICN
1 stop17h 00m
United Airlines
Thu 10/2911:45 am
ICN
- ONT
1 stop16h 16m
United Airlines
Deal found 6/22![United Airlines logo]()
$1,161
This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/41:04 pm
ONT
- ICN
1 stop34h 16m
Delta
Tue 10/274:10 pm
ICN
- ONT
1 stop17h 07m
Delta
Deal found 6/22![Delta logo]()
$1,263
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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 7/175:26 pm
ONT
- ICN
1 stop32h 04m
Alaska Airlines
Sat 7/257:35 pm
ICN
- ONT
1 stop19h 36m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$1,127
This China Airlines deal was found by Cheapflights users on 6/22. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2910:50 pm
ONT
- ICN
1 stop19h 30m
China Airlines
Thu 12/1012:30 pm
ICN
- ONT
1 stop21h 20m
China Airlines
Deal found 6/22![China Airlines logo]()
$1,155
This United Airlines deal was found by Cheapflights users on 6/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:00 am
ONT
- ICN
1 stop17h 00m
United Airlines
Fri 10/306:00 pm
ICN
- ONT
2 stops34h 42m
United Airlines
Deal found 6/22![United Airlines logo]()
$1,230
This China Airlines deal was found by Cheapflights users on 6/21. 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.
Tue 10/1312:10 am
ONT
- ICN
1 stop19h 05m
China Airlines
Fri 10/3012:30 pm
ICN
- ONT
1 stop21h 20m
China Airlines
Deal found 6/21![China Airlines logo]()
$1,198
This United Airlines deal was found by Cheapflights users on 6/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:03 am
ONT
- ICN
1 stop14h 57m
United Airlines
Sun 10/1111:30 am
ICN
- ONT
1 stop16h 48m
United Airlines
Deal found 6/22![United Airlines logo]()
$1,246
This China Airlines deal was found by Cheapflights users on 6/21. 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.
Fri 10/912:10 am
ONT
- ICN
1 stop19h 05m
China Airlines
Sat 10/2412:35 pm
ICN
- ONT
1 stop21h 25m
China Airlines
Deal found 6/21![China Airlines logo]()
$1,241
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Sat 7/186:00 am
ONT
- ICN
1 stop17h 00m
United Airlines
Sat 7/254:50 pm
ICN
- ONT
1 stop14h 39m
United Airlines
Deal found 6/19![United Airlines logo]()
$1,376
This United Airlines deal was found by Cheapflights users on 6/20. 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.
Thu 7/96:00 am
ONT
- ICN
1 stop17h 00m
United Airlines
Fri 7/1711:30 am
ICN
- ONT
1 stop16h 42m
United Airlines
Deal found 6/20![United Airlines logo]()
$1,476
Last-minute flights from Ontario to Incheon IntlDiscover last-minute flight deals from Ontario to Incheon Intl. Data last updated June 23, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Incheon Intl. Data last updated June 23, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 6/19. 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.
Sat 7/412:04 pm
ONT
- ICN
1 stop37h 26m
Alaska Airlines
Mon 7/137:35 pm
ICN
- ONT
1 stop19h 36m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$1,127
This Booking.com deal was found by Cheapflights users on 6/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/109:20 pm
ONT
- ICN
1 stop28h 10m
Alaska Airlines
Sat 7/187:35 pm
ICN
- ONT
1 stop19h 36m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$1,111
This Gotogate deal was found by Cheapflights users on 6/23. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Thu 7/167:35 pm
ICN
- ONT
1 stop16h 57m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$1,112
This Gotogate deal was found by Cheapflights users on 6/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Mon 7/137:35 pm
ICN
- ONT
1 stop19h 36m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$1,110
This Booking.com deal was found by Cheapflights users on 6/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/122:05 pm
ONT
- ICN
1 stop35h 25m
Alaska Airlines
Thu 7/167:35 pm
ICN
- ONT
1 stop16h 57m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$1,113
This Trip.com deal was found by Cheapflights users on 6/23. 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 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
Mon 8/3112:45 pm
ICN
- ONT
1 stop21h 55m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,115
This Alaska Airlines deal was found by Cheapflights users on 6/21. 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.
Wed 7/156:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Sat 7/187:35 pm
ICN
- ONT
1 stop16h 57m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$1,120
This Booking.com deal was found by Cheapflights users on 6/19. 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 7/192:05 pm
ONT
- ICN
1 stop35h 25m
Alaska Airlines
Sun 7/267:35 pm
ICN
- ONT
1 stop19h 36m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$1,097
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.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
Thu 7/302:15 am
ICN
- ONT
2 stops31h 25m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,195
This Alaska Airlines deal was found by Cheapflights users on 6/18. 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 7/276:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Wed 9/307:35 pm
ICN
- ONT
1 stop15h 28m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$1,106
This Trip.com deal was found by Cheapflights users on 6/19. 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 7/298:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Sat 8/156:00 pm
ICN
- ONT
2 stops21h 50m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$1,091
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 23, 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 23, 2026.
This Trip.com deal was found by Cheapflights users on 6/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$379
This Trip.com deal was found by Cheapflights users on 6/20. 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.
Sat 8/18:58 am
ONT
- ICN
1 stop19h 12m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$381
This Trip.com deal was found by Cheapflights users on 6/19. 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 8/58:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$401
This Trip.com deal was found by Cheapflights users on 6/20. 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 6/20![Multiple Airlines logo]()
$419
This Trip.com deal was found by Cheapflights users on 6/19. 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.
Sat 7/118:58 am
ONT
- ICN
1 stop19h 12m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$465
This Trip.com deal was found by Cheapflights users on 6/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/198:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$466
This Trip.com deal was found by Cheapflights users on 6/20. 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 6/20![Multiple Airlines logo]()
$481
This Trip.com deal was found by Cheapflights users on 6/22. 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 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
Deal found 6/22![Multiple Airlines logo]()
$482
This Trip.com deal was found by Cheapflights users on 6/20. 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 10/1211:38 am
ONT
- ICN
1 stop18h 02m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$491
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3011:38 am
ONT
- ICN
1 stop16h 52m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$498
This Kiwi.com deal was found by Cheapflights users on 6/19. 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.
Sun 10/49:12 pm
ONT
- ICN
2 stops32h 28m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$522
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 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $956 (Kiwi.com) |
One-way from | $379 (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 23, 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
Wed 9/23
6:02 am-5:30 pm
1 stop19h 28m
Incheon Intl
Mon 10/19
7:35 pm-6:03 pm
1 stop14h 28m
$1,106
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Fri 7/17
5:26 pm-5:30 pm
1 stop32h 04m
Incheon Intl
Sat 7/25
7:35 pm-11:11 pm
1 stop19h 36m
$1,127
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Wed 10/14
12:10 am-11:15 am
1 stop19h 05m
Incheon Intl
Thu 10/29
12:30 pm-5:50 pm
1 stop21h 20m
$1,155
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Sun 11/29
10:50 pm-11:20 am
1 stop19h 30m
Incheon Intl
Thu 12/10
12:30 pm-4:50 pm
1 stop21h 20m
$1,155
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Thu 10/22
6:00 am-3:00 pm
1 stop17h 00m
Incheon Intl
Thu 10/29
11:45 am-12:01 pm
1 stop16h 16m
$1,161
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Tue 10/13
12:10 am-11:15 am
1 stop19h 05m
Incheon Intl
Fri 10/30
12:30 pm-5:50 pm
1 stop21h 20m
$1,198
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Mon 10/12
6:00 am-3:00 pm
1 stop17h 00m
Incheon Intl
Fri 10/30
6:00 pm-12:42 pm
2 stops34h 42m
$1,230
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Fri 10/9
12:10 am-11:15 am
1 stop19h 05m
Incheon Intl
Sat 10/24
12:35 pm-6:00 pm
1 stop21h 25m
$1,241
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Wed 9/30
8:03 am-3:00 pm
1 stop14h 57m
Incheon Intl
Sun 10/11
11:30 am-12:18 pm
1 stop16h 48m
$1,246
OntarioIncheon
ONT - ICN
ONTICN
Ontario
Sun 10/4
1:04 pm-3:20 pm
1 stop34h 16m
Incheon Intl
Tue 10/27
4:10 pm-5:17 pm
1 stop17h 07m
$1,263
Showing 1-10 of 23 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 23, 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.
Overall
8.3
Boarding
8.3
Crew
8.5
Comfort
8.0
Entertainment
8.0
Food
7.8
Reviews
1 / 20
10.0
ExcellentA,Feb 2026
SEA - TPE
Overall
8.3
Boarding
8.3
Crew
8.5
Comfort
8.0
Entertainment
8.0
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
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Ontario and Incheon Intl flights
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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 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$860 | Average$989 | FlexibilityNo cancel fee | On-time70% |