Find cheap Delta flights to Ontario
WAS — YYZ
Oct 11 — Oct 181
Round-trip
1 adult, Economy
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Cheapest Delta flights from USA to OntarioExplore the most affordable Delta flight options available from USA to Ontario. Find the lowest fares with prices last updated on September 11, 2026.
Explore the most affordable Delta flight options available from USA to Ontario. Find the lowest fares with prices last updated on September 11, 2026.
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:32 pm -
1 stop4h 57m
Tue 11/106:00 am -
1 stop4h 45m
Deal found 9/9![Delta logo]()
$249
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:20 pm -
1 stop4h 59m
Tue 10/276:00 am -
1 stop5h 50m
Deal found 9/9![Delta logo]()
$255
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:05 am -
1 stop7h 31m
Thu 10/156:00 am -
1 stop4h 12m
Deal found 9/10![Delta logo]()
$260
Best Delta flights from USA to OntarioDiscover carefully curated Delta 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 September 11, 2026.
Discover carefully curated Delta 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 September 11, 2026.
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
1 stop7h 30m
Thu 12/32:25 pm -
1 stop8h 58m
Deal found 9/10![Delta logo]()
$249
This Delta deal was found by Cheapflights users on 9/8. 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 10/35:15 pm -
1 stop5h 44m
Wed 10/72:26 pm -
1 stop8h 50m
Deal found 9/8![Delta logo]()
$260
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:05 am -
1 stop7h 31m
Mon 10/192:26 pm -
1 stop8h 50m
Deal found 9/9![Delta logo]()
$260
Direct Delta flights from USA to OntarioExplore non-stop Delta flight options from USA to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated September 11, 2026.
Explore non-stop Delta flight options from USA to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated September 11, 2026.
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:00 am -
Nonstop1h 35m
Sat 10/32:25 pm -
Nonstop1h 33m
Deal found 9/10![Delta logo]()
$309
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:29 pm -
Nonstop1h 48m
Sun 11/17:55 am -
Nonstop1h 45m
Deal found 9/9![Delta logo]()
$310
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/68:59 pm -
Nonstop1h 55m
Sun 12/136:00 am -
Nonstop2h 06m
Deal found 9/9![Delta logo]()
$310
Last-minute Delta flights from USA to OntarioDiscover last-minute Delta flight deals from USA to Ontario. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute Delta flight deals from USA to Ontario. Data last updated September 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:32 pm -
1 stop4h 57m
Tue 11/106:00 am -
1 stop4h 45m
Deal found 9/9![Delta logo]()
$249
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:20 pm -
1 stop4h 59m
Tue 10/276:00 am -
1 stop5h 50m
Deal found 9/9![Delta logo]()
$255
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:05 am -
1 stop7h 31m
Thu 10/156:00 am -
1 stop4h 12m
Deal found 9/10![Delta logo]()
$260
One-way Delta flights to OntarioSearch for one-way Delta flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way Delta flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/115:14 pm -
1 stop5h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$96
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:10 am -
1 stop7h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$101
This Delta deal was found by Cheapflights users on 9/6. 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 9/226:10 am -
1 stop5h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$105
Flights to Ontario with Delta at a glance
Find detailed information about Delta flights from USA to Ontario. Explore the options provided by Delta to plan your journey from USA to Ontario. Data last updated September 11, 2026.
Popular in | July |
|---|---|
Cheapest in | November |
Average price | $335 |
Round-trip from | $249 |
One-way from | $96 |
Good round-trip deal | $293 or less |
Good one-way deal | $456 or less |
Cheapflights Insights
Find cheap Delta flights to Ontario
US0-CAON
IAD-YYZ
LGA-YUL
LGA-YYZ
JFK-YYZ
How long is the flight to Ontario with Delta?
On average, Delta flights from the United States to Ontario take 1 hour 25 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.
Delta weekly flight availability to Ontario
The most flights to Ontario operated by Delta are scheduled on a Friday (49 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (24 on average).
When is the best time to book a flight to Ontario with Delta?
The best time to book a flight to Ontario with Delta is 77 days before departure. On average, fares are higher if you book 74 days before departure.
FAQs for Delta flights to Ontario
Reviews from Delta flights to Ontario
See what other users thought of their Delta experience.
Overview
Reviews
Delta
8,558 reviews
Overview
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Recent reviews
8.0
|Aug 2026Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.
10.0
|Aug 2026No food and entertainment. Also de aircraft is old and noisy.
10.0
|Jul 2026Great
8.0
|Jun 2026All good with the airline
8.0
|Jun 2026Food snacks u can do better
1 out of 2853
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