Find cheap United Airlines flights to Ontario
ICT — YYZ
Nov 1 — Nov 81
Round-trip
1 adult, Economy
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Cheapest United Airlines flights from USA to OntarioExplore the most affordable United Airlines flight options available from USA to Ontario. Find the lowest fares with prices last updated on October 2, 2026.
Explore the most affordable United Airlines flight options available from USA to Ontario. Find the lowest fares with prices last updated on October 2, 2026.
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Tue 10/208:25 pm -
1 stop12h 54m
Wed 10/211:00 pm -
1 stop6h 22m
Deal found 9/29![United Airlines logo]()
$265
This United Airlines deal was found by Cheapflights users on 9/28. 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 11/257:00 am -
1 stop4h 48m
Wed 11/253:35 pm -
1 stop5h 36m
Deal found 9/28![United Airlines logo]()
$267
This United Airlines deal was found by Cheapflights users on 9/27. 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 10/227:00 am -
1 stop8h 46m
Sun 10/256:10 am -
1 stop14h 18m
Deal found 9/27![United Airlines logo]()
$270
Best United Airlines flights from USA to OntarioDiscover carefully curated United Airlines flight deals from USA to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 2, 2026.
Discover carefully curated United Airlines flight deals from USA to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 2, 2026.
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Tue 10/208:25 pm -
1 stop12h 54m
Wed 10/211:00 pm -
1 stop6h 22m
Deal found 9/29![United Airlines logo]()
$265
This United Airlines deal was found by Cheapflights users on 9/27. 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 10/227:00 am -
1 stop8h 46m
Sun 10/256:10 am -
1 stop14h 18m
Deal found 9/27![United Airlines logo]()
$270
This United Airlines deal was found by Cheapflights users on 9/27. 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 10/2311:15 am -
1 stop11h 21m
Sun 10/2510:53 am -
1 stop11h 52m
Deal found 9/27![United Airlines logo]()
$270
Direct United Airlines flights from USA to OntarioExplore non-stop United Airlines flight options from USA to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 2, 2026.
Explore non-stop United Airlines flight options from USA to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 2, 2026.
This United Airlines deal was found by Cheapflights users on 9/30. 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 11/68:45 pm -
Nonstop1h 33m
Sat 11/144:40 pm -
Nonstop1h 38m
Deal found 9/30![United Airlines logo]()
$320
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Tue 10/135:20 pm -
Nonstop1h 37m
Fri 10/163:15 pm -
Nonstop1h 27m
Deal found 9/29![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/30. 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 11/126:59 am -
Nonstop1h 33m
Sun 11/157:20 am -
Nonstop1h 38m
Deal found 9/30![United Airlines logo]()
$339
Last-minute United Airlines flights from USA to OntarioDiscover last-minute United Airlines flight deals from USA to Ontario. Data last updated October 2, 2026 and is based on user searches.
Discover last-minute United Airlines flight deals from USA to Ontario. Data last updated October 2, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Tue 10/208:25 pm -
1 stop12h 54m
Wed 10/211:00 pm -
1 stop6h 22m
Deal found 9/29![United Airlines logo]()
$265
This United Airlines deal was found by Cheapflights users on 9/28. 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 11/257:00 am -
1 stop4h 48m
Wed 11/253:35 pm -
1 stop5h 36m
Deal found 9/28![United Airlines logo]()
$267
This United Airlines deal was found by Cheapflights users on 9/27. 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 10/227:00 am -
1 stop8h 46m
Sun 10/256:10 am -
1 stop14h 18m
Deal found 9/27![United Airlines logo]()
$270
One-way United Airlines flights to OntarioSearch for one-way United Airlines flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated October 2, 2026.
Search for one-way United Airlines flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated October 2, 2026.
This United Airlines deal was found by Cheapflights users on 9/27. 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.
Tue 10/137:00 am -
1 stop8h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![United Airlines logo]()
$106
This United Airlines deal was found by Cheapflights users on 9/28. 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 10/283:01 pm -
1 stop6h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![United Airlines logo]()
$111
This United Airlines deal was found by Cheapflights users on 9/27. 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 10/268:52 pm -
1 stop12h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![United Airlines logo]()
$112
Flights to Ontario with United Airlines at a glance
Find detailed information about United Airlines flights from USA to Ontario. Explore the options provided by United Airlines to plan your journey from USA to Ontario. Data last updated October 2, 2026.
Cheapflights Insights
Find cheap United Airlines flights to Ontario
US0-CAON
BOS-YYZ
FLL-YYZ
DCA-YYZ
IAD-YTZ
How long is the flight to Ontario with United Airlines?
On average, United Airlines flights from the United States to Ontario take 1 hour 22 minutes. Flights to Ontario from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
United Airlines weekly flight availability to Ontario
The most flights to Ontario operated by United Airlines are scheduled on a Friday (156 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (137 on average).
When is the best time to book a flight to Ontario with United Airlines?
The best time to book a flight to Ontario with United Airlines is 20 days before departure. On average, fares are higher if you book on the same day as departure.
FAQs for United Airlines flights to Ontario
Reviews from United Airlines flights to Ontario
See what other users thought of their United Airlines experience.
Overview
Reviews
United Airlines
10,000 reviews
Overview
Comfort
7.3
Crew
8.1
Food
6.7
Entertainment
7.1
Boarding
7.7
Recent reviews
10.0
|Oct 2026Is good
10.0
|Sep 2026Everything was good
8.0
|Sep 2026The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
10.0
|Aug 2026Staff friendly, good boarding experience
4.0
|Aug 2026Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
1 out of 3334
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