$452+ Cheap flights from Ontario (ONT) to Incheon Intl (ICN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ICN
Nov 17 — Nov 241
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Incheon Intl with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Cheapest
Best
Last-minute
One-way
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 October 18, 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 October 18, 2026.
This Mytrip deal was found by Cheapflights users on 10/16. 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.
Mon 11/912:01 pm -
1 stop24h 09m
Mon 11/169:00 pm -
1 stop15h 30m
Deal found 10/16![Multiple Airlines logo]()
$909
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Fri 11/612:01 pm -
1 stop24h 09m
Thu 11/199:00 pm -
2 stops30h 45m
Deal found 10/14![Multiple Airlines logo]()
$913
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Wed 10/2810:35 am -
2 stops18h 45m
Fri 11/67:45 pm -
1 stop16h 45m
Deal found 10/14![Multiple Airlines logo]()
$920
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Tue 12/18:05 am -
2 stops28h 05m
Wed 12/99:00 pm -
1 stop19h 23m
Deal found 10/14![Multiple Airlines logo]()
$922
This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:35 am -
2 stops25h 35m
Mon 11/99:00 pm -
1 stop15h 30m
Deal found 10/13![Multiple Airlines logo]()
$927
This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1212:01 pm -
1 stop24h 09m
Thu 11/199:00 pm -
1 stop15h 30m
Deal found 10/13![Multiple Airlines logo]()
$928
This Mytrip deal was found by Cheapflights users on 10/16. 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.
Mon 11/912:01 pm -
1 stop24h 09m
Fri 11/139:00 pm -
1 stop15h 30m
Deal found 10/16![Multiple Airlines logo]()
$929
This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/612:01 pm -
1 stop24h 09m
Fri 11/139:00 pm -
1 stop15h 30m
Deal found 10/13![Multiple Airlines logo]()
$933
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Mon 11/912:01 pm -
1 stop24h 09m
Tue 11/249:00 pm -
1 stop20h 24m
Deal found 10/14![Multiple Airlines logo]()
$936
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 October 18, 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 October 18, 2026.
This Korean Air deal was found by Cheapflights users on 10/12. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:00 am -
1 stop15h 55m
Wed 12/24:10 pm -
1 stop18h 05m
Deal found 10/12![Korean Air logo]()
$1,022
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 1/157:00 am -
1 stop17h 35m
Sun 1/248:00 pm -
1 stop19h 41m
Deal found 10/15![Alaska Airlines logo]()
$1,118
This United Airlines deal was found by Cheapflights users on 10/15. 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 1/116:37 pm -
1 stop18h 03m
Wed 1/2712:45 pm -
1 stop16h 34m
Deal found 10/15![United Airlines logo]()
$1,118
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 am -
1 stop17h 20m
Tue 11/176:45 pm -
1 stop15h 31m
Deal found 10/12![Delta logo]()
$1,160
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Wed 11/116:00 am -
1 stop17h 15m
Wed 11/1812:45 pm -
1 stop16h 44m
Deal found 10/13![United Airlines logo]()
$1,118
This Delta deal was found by Cheapflights users on 10/14. 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.
Thu 10/225:03 pm -
2 stops31h 47m
Fri 10/306:45 pm -
2 stops21h 10m
Deal found 10/14![Delta logo]()
$1,273
This Korean Air deal was found by Cheapflights users on 10/12. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:00 am -
1 stop15h 55m
Tue 12/14:10 pm -
1 stop18h 05m
Deal found 10/12![Korean Air logo]()
$1,322
This United Airlines deal was found by Cheapflights users on 10/14. 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 12/76:40 pm -
1 stop18h 00m
Wed 12/166:00 pm -
2 stops20h 11m
Deal found 10/14![United Airlines logo]()
$1,283
This Delta deal was found by Cheapflights users on 10/15. 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.
Tue 12/86:00 am -
1 stop17h 20m
Tue 12/156:45 pm -
1 stop15h 30m
Deal found 10/15![Delta logo]()
$1,318
This United Airlines deal was found by Cheapflights users on 10/13. 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 11/26:00 am -
1 stop17h 15m
Thu 12/176:00 pm -
2 stops20h 00m
Deal found 10/13![United Airlines logo]()
$1,333
This Delta deal was found by Cheapflights users on 10/14. 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.
Sat 11/287:00 am -
1 stop17h 45m
Sat 12/56:40 pm -
1 stop20h 49m
Deal found 10/14![Delta logo]()
$1,419
This United Airlines deal was found by Cheapflights users on 10/16. 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 10/316:00 am -
1 stop18h 15m
Thu 12/246:00 pm -
2 stops20h 00m
Deal found 10/16![United Airlines logo]()
$1,383
Last-minute flights from Ontario to Incheon IntlDiscover last-minute flight deals from Ontario to Incheon Intl. Data last updated October 18, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Incheon Intl. Data last updated October 18, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Wed 10/2810:35 am -
2 stops18h 45m
Fri 11/67:45 pm -
1 stop16h 45m
Deal found 10/14![Multiple Airlines logo]()
$920
This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:35 am -
2 stops25h 35m
Mon 11/99:00 pm -
1 stop15h 30m
Deal found 10/13![Multiple Airlines logo]()
$927
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Fri 11/612:01 pm -
1 stop24h 09m
Thu 11/199:00 pm -
2 stops30h 45m
Deal found 10/14![Multiple Airlines logo]()
$913
This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/612:01 pm -
1 stop24h 09m
Fri 11/139:00 pm -
1 stop15h 30m
Deal found 10/13![Multiple Airlines logo]()
$933
This Mytrip deal was found by Cheapflights users on 10/16. 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.
Mon 11/912:01 pm -
1 stop24h 09m
Mon 11/169:00 pm -
1 stop15h 30m
Deal found 10/16![Multiple Airlines logo]()
$909
This Mytrip deal was found by Cheapflights users on 10/16. 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.
Mon 11/912:01 pm -
1 stop24h 09m
Fri 11/139:00 pm -
1 stop15h 30m
Deal found 10/16![Multiple Airlines logo]()
$929
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Mon 11/912:01 pm -
1 stop24h 09m
Tue 11/249:00 pm -
1 stop20h 24m
Deal found 10/14![Multiple Airlines logo]()
$936
This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1212:01 pm -
1 stop24h 09m
Thu 11/199:00 pm -
1 stop15h 30m
Deal found 10/13![Multiple Airlines logo]()
$928
This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1710:35 am -
2 stops25h 35m
Mon 11/239:00 pm -
1 stop20h 24m
Deal found 10/13![Multiple Airlines logo]()
$939
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 October 18, 2026.
Search for one-way flight options from Ontario to Incheon Intl. Find affordable one-way fares based on user searches. Data last updated October 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/811:30 am -
2 stops35h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$452
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Wed 12/28:05 am -
2 stops20h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$456
This Trip.com deal was found by Cheapflights users on 10/14. 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 10/3012:01 pm -
1 stop17h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$464
This Trip.com deal was found by Cheapflights users on 10/14. 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 11/288:31 pm -
1 stop31h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$466
This Trip.com deal was found by Cheapflights users on 10/15. 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 11/1612:01 pm -
1 stop24h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Multiple Airlines logo]()
$482
This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/812:01 pm -
1 stop16h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$483
This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/612:01 pm -
1 stop24h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$488
This Trip.com deal was found by Cheapflights users on 10/13. 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.
Mon 1/47:11 am -
1 stop21h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$494
This Mytrip deal was found by Cheapflights users on 10/16. 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.
Sat 10/3110:00 am -
2 stops19h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Multiple Airlines logo]()
$511
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Sat 11/1410:00 am -
2 stops26h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$512
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 October 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $909 (Mytrip) |
One-way from | $452 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $920 |
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 7,457,451 searches. Data last updated October 18, 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 Ontario - ICN Incheon Intl
ONTICN
Ontario
Mon 11/23
10:50 pm-7:15 pm
1 stop27h 25m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$683
OntarioIncheon
ONT Ontario - ICN Incheon Intl
ONTICN
Ontario
Fri 10/30
11:50 pm-11:20 am
1 stop19h 30m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$683
OntarioIncheon
ONT Ontario - ICN Incheon Intl
ONTICN
Ontario
Thu 1/7
10:50 pm-7:15 pm
1 stop27h 25m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$683
OntarioIncheon
ONT Ontario - ICN Incheon Intl
ONTICN
Ontario
Mon 10/19
12:10 am-7:05 pm
1 stop26h 55m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$683
OntarioIncheon
ONT Ontario - ICN Incheon Intl
ONTICN
Ontario
Sat 10/31
6:02 am-5:35 pm
1 stop19h 33m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$713
Quickest round-trip
OntarioIncheon
ONT Ontario - ICN Incheon Intl
ONTICN
Ontario
Sat 11/14
6:00 am-5:35 pm
1 stop18h 35m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$713
OntarioIncheon
ONT Ontario - ICN Incheon Intl
ONTICN
Ontario
Tue 12/8
7:26 pm-9:20 pm
1 stop32h 54m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$715
OntarioIncheon
ONT Ontario - ICN Incheon Intl
ONTICN
Ontario
Tue 11/10
5:04 pm-5:45 pm
2 stops31h 41m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$719
OntarioIncheon
ONT Ontario - ICN Incheon Intl
ONTICN
Ontario
Tue 12/1
10:50 pm-7:15 pm
1 stop27h 25m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$745
OntarioIncheon
ONT Ontario - ICN Incheon Intl
ONTICN
Ontario
Wed 11/4
1:35 pm-5:40 am
1 stop23h 05m
Incheon Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$763
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 October.
| 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 October 18, 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.
Food
7.8
Comfort
8.0
Entertainment
8.0
Boarding
8.3
Overall
8.3
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Sep 2026
SYD - TPE
Food
7.8
Comfort
8.0
Entertainment
8.0
Boarding
8.3
Overall
8.3
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Sep 2026
SYD - 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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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 7,457,451 searches. Data last updated October 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$860 | Average$981 | FlexibilityNo cancel fee | On-time70% |