$125+ Cheap flights from Atlanta (ATL) to Ontario
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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Atlanta to Ontario 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 Atlanta to Ontario
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Cheapest flights from Atlanta to OntarioExplore the most affordable flight options available from Atlanta to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Atlanta to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Wed 11/1112:45 pm -
1 stop26h 35m
Sun 11/159:20 am -
1 stop23h 49m
Deal found 10/26![Multiple Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2710:59 pm -
1 stop14h 41m
Fri 12/46:30 am -
1 stop11h 31m
Deal found 10/27![Multiple Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Wed 11/117:31 am -
2 stops14h 27m
Sun 11/159:10 am -
1 stop24h 44m
Deal found 10/26![Multiple Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:14 pm -
2 stops17h 26m
Mon 12/72:25 pm -
1 stop19h 29m
Deal found 10/29![Multiple Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/2710:59 pm -
1 stop14h 41m
Sat 12/52:25 pm -
1 stop7h 29m
Deal found 10/26![Multiple Airlines logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:00 pm -
1 stop18h 20m
Sun 12/66:30 am -
1 stop26h 44m
Deal found 10/28![Multiple Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:16 pm -
1 stop13h 03m
Tue 12/89:10 am -
1 stop15h 29m
Deal found 10/27![Multiple Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:31 am -
1 stop7h 49m
Mon 11/97:35 am -
1 stop16h 14m
Deal found 10/27![Multiple Airlines logo]()
$288
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:14 pm -
2 stops17h 26m
Sat 12/56:30 am -
1 stop11h 34m
Deal found 10/28![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:31 am -
1 stop7h 49m
Sun 11/157:35 am -
1 stop25h 34m
Deal found 10/28![Multiple Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:31 am -
1 stop7h 49m
Wed 11/189:20 am -
1 stop8h 13m
Deal found 10/27![Multiple Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:00 pm -
1 stop18h 20m
Mon 11/97:35 am -
1 stop25h 34m
Deal found 10/27![Multiple Airlines logo]()
$292
Best flights from Atlanta to OntarioDiscover carefully curated flight deals from Atlanta to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Atlanta to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/157:15 am -
1 stop6h 14m
Mon 1/189:10 am -
1 stop15h 51m
Deal found 10/27![Multiple Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/237:29 pm -
1 stop13h 03m
Thu 12/318:35 am -
2 stops15h 55m
Deal found 10/25![United Airlines logo]()
$593
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/243:30 pm -
1 stop8h 11m
Sat 11/287:35 am -
Nonstop2h 25m
Deal found 10/27![Delta logo]()
$654
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 12/76:16 am -
1 stop8h 16m
Mon 12/143:15 pm -
1 stop17h 47m
Deal found 10/25![Multiple Airlines logo]()
$331
This deal was found by Cheapflights users on 10/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2212:55 pm -
1 stop6h 56m
Sat 12/263:20 pm -
1 stop5h 57m
Deal found 10/25![Air Canada logo]()
$671
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/111:01 pm -
1 stop6h 54m
Fri 12/1810:29 am -
1 stop22h 58m
Deal found 10/26![Multiple Airlines logo]()
$359
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/189:52 pm -
1 stop14h 58m
Sun 11/229:10 am -
2 stops23h 16m
Deal found 10/26![Multiple Airlines logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/2310:29 pm -
2 stops25h 11m
Mon 11/307:05 am -
1 stop25h 55m
Deal found 10/26![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 2/95:35 am -
2 stops16h 40m
Sat 2/133:10 pm -
1 stop9h 45m
Deal found 10/25![Multiple Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/245:30 am -
1 stop18h 22m
Thu 12/318:35 am -
2 stops15h 55m
Deal found 10/25![United Airlines logo]()
$593
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/117:31 am -
2 stops14h 39m
Sun 11/156:20 am -
2 stops27h 04m
Deal found 10/26![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 12/258:21 am -
1 stop5h 13m
Wed 12/309:10 am -
1 stop15h 53m
Deal found 10/25![Multiple Airlines logo]()
$404
This United Airlines deal was found by Cheapflights users on 10/26. 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 12/265:30 am -
1 stop18h 22m
Tue 12/299:00 pm -
1 stop13h 17m
Deal found 10/26![United Airlines logo]()
$663
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/47:30 am -
1 stop8h 36m
Sat 4/107:45 am -
Nonstop2h 33m
Deal found 10/28![Delta logo]()
$771
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:15 am -
2 stops15h 55m
Thu 12/36:20 am -
1 stop7h 52m
Deal found 10/29![Multiple Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:31 am -
2 stops14h 39m
Sun 11/226:20 am -
1 stop17h 36m
Deal found 10/27![Multiple Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/218:15 am -
1 stop8h 55m
Sun 1/36:15 am -
Nonstop2h 38m
Deal found 10/27![Delta logo]()
$833
This United Airlines deal was found by Cheapflights users on 10/27. 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 3/169:31 am -
1 stop12h 25m
Mon 3/226:00 am -
1 stop17h 09m
Deal found 10/27![United Airlines logo]()
$826
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/212:52 pm -
1 stop7h 43m
Sun 11/2212:10 pm -
2 stops11h 46m
Deal found 10/29![Multiple Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/101:15 pm -
2 stops10h 25m
Wed 3/175:30 am -
2 stops16h 09m
Deal found 10/27![Delta logo]()
$839
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/128:30 am -
2 stops15h 10m
Wed 3/175:30 am -
2 stops15h 05m
Deal found 10/27![Delta logo]()
$839
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/3010:02 am -
1 stop8h 59m
Sun 1/33:35 pm -
1 stop5h 42m
Deal found 10/25![United Airlines logo]()
$841
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:41 am -
1 stop7h 29m
Sun 1/33:10 pm -
1 stop17h 50m
Deal found 10/28![Multiple Airlines logo]()
$435
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Wed 3/106:00 am -
2 stops15h 26m
Tue 3/2310:30 am -
2 stops12h 39m
Deal found 10/27![United Airlines logo]()
$842
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:41 am -
1 stop15h 49m
Mon 12/286:20 am -
1 stop25h 21m
Deal found 10/28![Multiple Airlines logo]()
$436
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/252:07 pm -
Nonstop2h 08m
Fri 12/45:25 pm -
Nonstop2h 37m
Deal found 10/27![Delta logo]()
$858
This Delta deal was found by Cheapflights users on 10/26. 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 11/257:40 pm -
Nonstop2h 17m
Sun 11/296:15 am -
Nonstop2h 34m
Deal found 10/26![Delta logo]()
$858
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:27 am -
1 stop10h 38m
Wed 12/27:10 pm -
1 stop16h 45m
Deal found 10/29![Multiple Airlines logo]()
$450
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/279:40 pm -
Nonstop2h 17m
Thu 12/316:15 am -
Nonstop2h 38m
Deal found 10/28![Delta logo]()
$858
This Booking.com deal was found by Cheapflights users on 10/25. 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.
Thu 11/127:31 am -
2 stops14h 39m
Sun 11/156:20 am -
1 stop10h 18m
Deal found 10/25![Multiple Airlines logo]()
$455
Last-minute flights from Atlanta to OntarioDiscover last-minute flight deals from Atlanta to Ontario. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Atlanta to Ontario. Data last updated October 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:00 pm -
1 stop18h 20m
Mon 11/97:35 am -
1 stop25h 34m
Deal found 10/27![Multiple Airlines logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:31 am -
1 stop7h 49m
Wed 11/189:20 am -
1 stop10h 24m
Deal found 10/27![Multiple Airlines logo]()
$291
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:31 am -
1 stop7h 49m
Sat 11/77:35 am -
1 stop16h 14m
Deal found 10/28![Multiple Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:31 am -
1 stop7h 49m
Mon 11/97:35 am -
1 stop16h 14m
Deal found 10/29![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:31 am -
1 stop7h 49m
Mon 11/97:35 am -
1 stop16h 14m
Deal found 10/27![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Wed 11/1112:45 pm -
1 stop26h 35m
Sun 11/159:20 am -
1 stop23h 49m
Deal found 10/26![Multiple Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Wed 11/117:31 am -
2 stops14h 27m
Sun 11/159:10 am -
1 stop24h 44m
Deal found 10/26![Multiple Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:31 am -
1 stop7h 49m
Sun 11/157:35 am -
1 stop25h 34m
Deal found 10/28![Multiple Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:57 pm -
1 stop26h 58m
Fri 12/46:30 am -
1 stop26h 44m
Deal found 10/28![Multiple Airlines logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:00 pm -
1 stop18h 20m
Sun 12/66:30 am -
1 stop26h 44m
Deal found 10/28![Multiple Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2710:59 pm -
1 stop14h 41m
Fri 12/46:30 am -
1 stop11h 31m
Deal found 10/27![Multiple Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/2710:59 pm -
1 stop14h 41m
Sat 12/52:25 pm -
1 stop7h 29m
Deal found 10/26![Multiple Airlines logo]()
$286
One-way flights from Atlanta to OntarioSearch for one-way flight options from Atlanta to Ontario. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Atlanta to Ontario. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Mytrip deal was found by Cheapflights users on 10/26. 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 12/107:13 am -
1 stop6h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/83:05 pm -
2 stops31h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$140
This Trip.com deal was found by Cheapflights users on 10/25. 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 12/186:23 am -
1 stop16h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1110:16 pm -
1 stop16h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$152
This Mytrip deal was found by Cheapflights users on 10/25. 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 11/85:25 am -
1 stop8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 1/59:44 pm -
2 stops21h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Sat 12/1210:49 pm -
1 stop24h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/610:05 am -
2 stops14h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 12/179:06 pm -
2 stops26h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/2410:29 pm -
1 stop24h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Wed 11/1810:29 pm -
2 stops26h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$170
This Trip.com deal was found by Cheapflights users on 10/25. 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.
Thu 12/319:42 pm -
1 stop11h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$171
Find flight deals from Atlanta to Ontario
Keep the following information in mind while searching for Atlanta to Ontario flight deals. Data was last updated October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $283 (Kiwi.com) |
One-way from | $125 (Mytrip) |
Popular in | January |
Cheapest in | October |
Average price | $308 |
Good round-trip deal | $680 or less |
Good one-way deal | $284 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Atlanta to Ontario 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 30, 2026.
Use the filters below to find and compare flights from Atlanta to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AtlantaOttawa
ATL Atlanta Hartsfield-Jackson - YOW Ottawa
ATLYOW
Atlanta Hartsfield-Jackson
Mon 2/8
3:05 pm-10:14 pm
2 stops31h 09m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$140
AtlantaHamilton
ATL Atlanta Hartsfield-Jackson - YHM Hamilton
ATLYHM
Atlanta Hartsfield-Jackson
Fri 12/18
6:23 am-10:25 pm
1 stop16h 02m
Hamilton
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$146
AtlantaOttawa
ATL Atlanta Hartsfield-Jackson - YOW Ottawa
ATLYOW
Atlanta Hartsfield-Jackson
Fri 12/11
10:16 pm-2:32 pm
1 stop16h 16m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$152
AtlantaOttawa
ATL Atlanta Hartsfield-Jackson - YOW Ottawa
ATLYOW
Atlanta Hartsfield-Jackson
Wed 1/6
10:05 am-12:49 am
2 stops14h 44m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$161
AtlantaToronto
ATL Atlanta Hartsfield-Jackson - YYZ Toronto Pearson Intl
ATLYYZ
Atlanta Hartsfield-Jackson
Tue 11/24
6:15 am-5:10 pm
1 stop10h 55m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$170
AtlantaToronto
ATL Atlanta Hartsfield-Jackson - YTZ Toronto Island
ATLYTZ
Atlanta Hartsfield-Jackson
Thu 12/31
10:59 pm-12:52 pm
1 stop13h 53m
Toronto Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$173
AtlantaHamilton
ATL Atlanta Hartsfield-Jackson - YHM Hamilton
ATLYHM
Atlanta Hartsfield-Jackson
Thu 12/10
7:13 am-2:10 pm
1 stop6h 57m
Hamilton
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$174
AtlantaToronto
ATL Atlanta Hartsfield-Jackson - YTZ Toronto Island
ATLYTZ
Atlanta Hartsfield-Jackson
Sat 1/9
9:44 pm-9:39 am
1 stop11h 55m
Toronto Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$181
AtlantaToronto
ATL Atlanta Hartsfield-Jackson - YTZ Toronto Island
ATLYTZ
Atlanta Hartsfield-Jackson
Thu 11/19
5:15 am-6:15 pm
2 stops13h 00m
Toronto Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$189
AtlantaToronto
ATL Atlanta Hartsfield-Jackson - YTZ Toronto Island
ATLYTZ
Atlanta Hartsfield-Jackson
Tue 11/24
1:15 pm-12:50 pm
1 stop23h 35m
Toronto Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$192
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Atlanta to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Atlanta with our price prediction graph.
ATL-YYZ
ATL-YTZ
ATL-YOW
ATL-YHM
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.
Cheapflights Insights
Everything you need to know about your flight from Atlanta to Ontario
ATL-CAON
ATL-YYZ
ATL-YTZ
ATL-YOW
ATL-YHM
What is the cheapest month to book a flight from Atlanta to Region of Ontario?
Currently, November is the cheapest month in which you can book a flight from Atlanta to Region of Ontario (average of $540). Flying from Atlanta to Region of Ontario in July is currently the most expensive (average of $669). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ATL to ON?
Find hourly flight availability from Atlanta to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2026.
When flying from Atlanta to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 35% versus a flight in the morning.
How much does it cost to fly round-trip from Atlanta to Region of Ontario?
Airfare is below average for this route at the moment.
Atlanta to Region of Ontario flights typically cost between $350 and $771 in November.The cheapest round-trip price found within the last 5 days was $283 on Multiple Airlines (Nov 11-Nov 15).
How far ahead should I book a flight from Atlanta to Region of Ontario?
The best time to book flights from Atlanta to Region of Ontario is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Atlanta to Region of Ontario?
Use this chart to determine the cheapest time to fly round-trip from Atlanta to Ontario. Price data was last updated on October 24, 2026.
Travelers seeking maximum savings on their Atlanta to Region of Ontario flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated October 30, 2026.
See what other customers who have flown with Delta,United Airlines, andWestJet from Atlanta to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Related info for your journey
Find useful and relevant information for your journey from Atlanta to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Atlanta to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Atlanta to Ontario by cabin class
Find flights from Atlanta to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Atlanta and Ontario flights
Browse other Atlanta and Ontario flight options. Last updated on October 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Atlanta to Ontario
Discover the top 5 airlines that operate flights from Atlanta to Ontario. 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 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$247 | Average$578 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$251 | Average$443 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$265 | Average$618 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$322 | Average$583 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$441 | Average$734 | FlexibilityNo cancel fee | On-time60% |