$136+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
Nov 15 — Nov 221
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
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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 16, 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 16, 2026.
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:06 pm -
1 stop18h 34m
Mon 12/72:25 pm -
1 stop7h 29m
Deal found 10/13![Multiple Airlines logo]()
$283
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:52 pm -
1 stop14h 58m
Wed 11/49:10 am -
1 stop11h 17m
Deal found 10/13![Multiple Airlines logo]()
$286
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:56 pm -
1 stop17h 44m
Mon 11/167:35 am -
1 stop16h 14m
Deal found 10/13![Multiple Airlines logo]()
$287
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/91:01 pm -
1 stop23h 49m
Wed 12/169:10 am -
1 stop15h 27m
Deal found 10/14![Multiple Airlines logo]()
$287
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2110:20 am -
1 stop13h 35m
Tue 1/59:20 am -
1 stop14h 13m
Deal found 10/15![Multiple Airlines logo]()
$288
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:52 pm -
1 stop14h 58m
Mon 11/164:15 pm -
1 stop17h 57m
Deal found 10/13![Multiple Airlines logo]()
$289
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:00 am -
1 stop15h 22m
Mon 12/142:25 pm -
1 stop7h 29m
Deal found 10/14![Multiple Airlines logo]()
$290
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:49 pm -
1 stop22h 33m
Sun 12/134:50 pm -
1 stop17h 49m
Deal found 10/15![Multiple Airlines logo]()
$291
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:25 am -
1 stop8h 15m
Mon 11/167:35 am -
1 stop16h 14m
Deal found 10/13![Multiple Airlines logo]()
$292
This Kiwi.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 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 10/14![Multiple Airlines logo]()
$294
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:25 am -
1 stop8h 15m
Sun 11/157:35 am -
1 stop25h 34m
Deal found 10/13![Multiple Airlines logo]()
$297
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:31 am -
1 stop7h 19m
Fri 11/134:50 pm -
1 stop22h 40m
Deal found 10/14![Multiple Airlines logo]()
$298
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 16, 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 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 11/129:52 pm -
1 stop14h 58m
Sun 11/154:15 pm -
1 stop6h 58m
Deal found 10/11![Multiple Airlines logo]()
$323
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:55 pm -
1 stop7h 01m
Thu 10/2912:30 pm -
1 stop8h 51m
Deal found 10/12![Air Canada logo]()
$524
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:20 am -
1 stop9h 35m
Fri 11/279:10 am -
1 stop15h 39m
Deal found 10/13![Multiple Airlines logo]()
$328
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:40 pm -
Nonstop2h 17m
Thu 11/196:05 am -
1 stop9h 18m
Deal found 10/13![Delta logo]()
$666
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.
Sat 11/285:30 am -
1 stop8h 55m
Wed 12/910:00 am -
1 stop9h 52m
Deal found 10/13![United Airlines logo]()
$667
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:49 pm -
1 stop14h 01m
Thu 11/269:10 am -
1 stop15h 39m
Deal found 10/15![Multiple Airlines logo]()
$332
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.
Thu 11/2612:34 pm -
2 stops9h 28m
Thu 12/33:15 pm -
1 stop9h 42m
Deal found 10/12![Multiple Airlines logo]()
$374
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:31 am -
1 stop6h 48m
Sun 11/1512:10 pm -
2 stops11h 39m
Deal found 10/15![Multiple Airlines logo]()
$378
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:29 pm -
1 stop16h 51m
Sun 11/294:20 pm -
2 stops14h 25m
Deal found 10/15![Multiple Airlines logo]()
$397
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/136:07 pm -
1 stop23h 28m
Sat 1/94:35 pm -
1 stop16h 55m
Deal found 10/15![Multiple Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 10/11. 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 12/162:39 pm -
1 stop9h 13m
Sun 12/207:44 pm -
1 stop18h 53m
Deal found 10/11![United Airlines logo]()
$668
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/209:40 pm -
Nonstop2h 18m
Tue 1/510:20 am -
1 stop11h 56m
Deal found 10/13![Delta logo]()
$725
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:10 am -
1 stop5h 24m
Tue 11/107:00 am -
2 stops18h 33m
Deal found 10/15![Multiple Airlines logo]()
$422
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:11 pm -
1 stop11h 28m
Fri 12/412:15 pm -
2 stops12h 42m
Deal found 10/15![Multiple Airlines logo]()
$431
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/49:50 pm -
Nonstop2h 11m
Sat 4/106:00 pm -
Nonstop2h 33m
Deal found 10/13![Delta logo]()
$795
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:49 pm -
1 stop14h 01m
Sat 11/289:10 am -
1 stop11h 56m
Deal found 10/13![Multiple Airlines logo]()
$436
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.
Sun 2/149:39 am -
1 stop8h 18m
Sun 2/2110:19 am -
1 stop8h 58m
Deal found 10/14![United Airlines logo]()
$866
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.
Thu 12/39:41 pm -
Nonstop2h 17m
Wed 12/95:25 pm -
Nonstop2h 37m
Deal found 10/12![Delta logo]()
$795
This Air Canada deal was found by Cheapflights users on 10/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:05 pm -
1 stop7h 30m
Mon 10/262:00 pm -
1 stop7h 18m
Deal found 10/11![Air Canada logo]()
$996
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/303:00 pm -
2 stops24h 15m
Mon 12/77:00 am -
1 stop26h 00m
Deal found 10/15![Multiple Airlines logo]()
$443
This United Airlines deal was found by Cheapflights users on 10/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/136:00 am -
1 stop7h 11m
Sun 12/134:36 pm -
2 stops17h 51m
Deal found 10/10![United Airlines logo]()
$878
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.
Mon 11/238:30 am -
1 stop9h 24m
Sat 11/287:35 am -
Nonstop2h 25m
Deal found 10/14![Delta logo]()
$799
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 10/277:31 am -
2 stops14h 27m
Fri 10/3012:15 pm -
2 stops11h 34m
Deal found 10/13![Multiple Airlines logo]()
$456
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.
Sun 11/19:39 pm -
Nonstop2h 20m
Tue 11/1012:20 pm -
Nonstop2h 14m
Deal found 10/12![Delta logo]()
$823
This Mytrip deal was found by Cheapflights users on 10/11. 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 11/107:31 am -
2 stops14h 39m
Sun 11/1512:10 pm -
2 stops20h 59m
Deal found 10/11![Multiple Airlines logo]()
$463
This Delta deal was found by Cheapflights users on 10/11. 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 11/68:05 am -
Nonstop2h 18m
Sun 11/86:33 pm -
Nonstop2h 20m
Deal found 10/11![Delta logo]()
$851
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 11/117:31 am -
2 stops14h 39m
Wed 11/2512:10 pm -
2 stops11h 46m
Deal found 10/14![Multiple Airlines logo]()
$483
This Mytrip deal was found by Cheapflights users on 10/11. 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 11/127:31 am -
2 stops14h 39m
Sun 11/1512:10 pm -
2 stops11h 39m
Deal found 10/11![Multiple Airlines logo]()
$485
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.
Thu 11/58:10 am -
1 stop6h 22m
Fri 11/68:00 am -
1 stop27h 15m
Deal found 10/12![Multiple Airlines logo]()
$486
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:05 am -
2 stops12h 05m
Fri 12/46:20 am -
1 stop8h 20m
Deal found 10/15![Multiple Airlines logo]()
$489
Last-minute flights from Atlanta to OntarioDiscover last-minute flight deals from Atlanta to Ontario. Data last updated October 16, 2026 and is based on user searches.
Discover last-minute flight deals from Atlanta to Ontario. Data last updated October 16, 2026 and is based on user searches.
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:30 pm -
1 stop10h 25m
Tue 11/39:20 am -
1 stop8h 03m
Deal found 10/15![Multiple Airlines logo]()
$303
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:52 pm -
1 stop14h 58m
Wed 11/49:10 am -
1 stop11h 17m
Deal found 10/13![Multiple Airlines logo]()
$286
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:14 am -
1 stop12h 41m
Sun 11/84:15 pm -
1 stop16h 54m
Deal found 10/14![Multiple Airlines logo]()
$303
This Kiwi.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 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 10/14![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 11/1010:29 pm -
1 stop14h 21m
Sun 11/154:15 pm -
1 stop16h 54m
Deal found 10/11![Multiple Airlines logo]()
$299
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:56 pm -
1 stop17h 44m
Mon 11/167:35 am -
1 stop16h 14m
Deal found 10/13![Multiple Airlines logo]()
$287
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:52 pm -
1 stop14h 58m
Mon 11/164:15 pm -
1 stop17h 57m
Deal found 10/13![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 11/119:52 pm -
1 stop14h 58m
Sun 11/154:15 pm -
1 stop17h 39m
Deal found 10/11![Multiple Airlines logo]()
$302
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:25 am -
1 stop8h 15m
Mon 11/167:35 am -
1 stop16h 14m
Deal found 10/13![Multiple Airlines logo]()
$292
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:25 am -
1 stop8h 15m
Sun 11/157:35 am -
1 stop25h 34m
Deal found 10/13![Multiple Airlines logo]()
$297
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:31 am -
1 stop7h 19m
Fri 11/134:50 pm -
1 stop22h 40m
Deal found 10/14![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 11/189:52 pm -
1 stop14h 58m
Sun 11/224:15 pm -
1 stop17h 04m
Deal found 10/11![Multiple Airlines logo]()
$300
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 16, 2026.
Search for one-way flight options from Atlanta to Ontario. Find affordable one-way fares based on user searches. Data last updated October 16, 2026.
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.
Sat 1/93:05 pm -
1 stop7h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$136
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:00 pm -
1 stop20h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Multiple Airlines logo]()
$142
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.
Sat 11/1410:16 am -
1 stop12h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$155
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.
Thu 12/310:49 pm -
2 stops25h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$156
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/276:15 am -
1 stop11h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$162
This Trip.com deal was found by Cheapflights users on 10/11. 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.
Tue 1/125:35 am -
1 stop16h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Multiple Airlines logo]()
$163
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 11/47:31 am -
2 stops14h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$166
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:22 pm -
2 stops26h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Multiple Airlines logo]()
$167
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/910:47 pm -
1 stop14h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Multiple Airlines logo]()
$169
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1510:16 pm -
2 stops20h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$171
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:10 am -
2 stops10h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$172
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.
Sun 11/1510:40 pm -
1 stop14h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$173
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 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $283 (Kiwi.com) |
One-way from | $136 (Trip.com) |
Popular in | September |
Cheapest in | August |
Average price | $387 |
Good round-trip deal | $711 or less |
Good one-way deal | $311 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 16, 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
Wed 10/28
9:00 pm-5:20 pm
1 stop20h 20m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$142
AtlantaOttawa
ATL Atlanta Hartsfield-Jackson - YOW Ottawa
ATLYOW
Atlanta Hartsfield-Jackson
Thu 12/3
10:49 pm-12:41 am
2 stops25h 52m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$156
AtlantaOttawa
ATL Atlanta Hartsfield-Jackson - YOW Ottawa
ATLYOW
Atlanta Hartsfield-Jackson
Fri 11/27
6:15 am-5:24 pm
1 stop11h 09m
Ottawa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$162
AtlantaHamilton
ATL Atlanta Hartsfield-Jackson - YHM Hamilton
ATLYHM
Atlanta Hartsfield-Jackson
Tue 1/12
5:35 am-10:20 pm
1 stop16h 45m
Hamilton
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$163
AtlantaHamilton
ATL Atlanta Hartsfield-Jackson - YHM Hamilton
ATLYHM
Atlanta Hartsfield-Jackson
Thu 11/12
7:31 am-10:10 pm
2 stops14h 39m
Hamilton
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$177
AtlantaToronto
ATL Atlanta Hartsfield-Jackson - YTZ Toronto Island
ATLYTZ
Atlanta Hartsfield-Jackson
Wed 12/2
8:26 am-6:29 pm
2 stops10h 03m
Toronto Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$180
AtlantaToronto
ATL Atlanta Hartsfield-Jackson - YYZ Toronto Pearson Intl
ATLYYZ
Atlanta Hartsfield-Jackson
Thu 12/17
9:06 pm-2:00 pm
2 stops16h 54m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$186
AtlantaToronto
ATL Atlanta Hartsfield-Jackson - YTZ Toronto Island
ATLYTZ
Atlanta Hartsfield-Jackson
Mon 12/14
1:01 pm-7:55 pm
1 stop6h 54m
Toronto Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$198
AtlantaToronto
ATL Atlanta Hartsfield-Jackson - YTZ Toronto Island
ATLYTZ
Atlanta Hartsfield-Jackson
Tue 3/2
9:04 pm-4:33 pm
2 stops19h 29m
Toronto Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$201
AtlantaToronto
ATL Atlanta Hartsfield-Jackson - YTZ Toronto Island
ATLYTZ
Atlanta Hartsfield-Jackson
Thu 11/26
6:45 am-12:50 pm
2 stops30h 05m
Toronto Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$204
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-YOW
ATL-YYZ
ATL-YTZ
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-YOW
ATL-YYZ
ATL-YTZ
ATL-YHM
What is the cheapest month to book a flight from Atlanta to Region of Ontario?
Currently, August is the cheapest month in which you can book a flight from Atlanta to Region of Ontario (average of $583). Flying from Atlanta to Region of Ontario in March 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 16, 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.
Weekly flight availability from Atlanta to Region of Ontario
Explore weekly flight availability from Atlanta to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated October 16, 2026.
The most flights from ATL to CAON are scheduled on a Wednesday (27 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).
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 $448 and $867 in December.The cheapest round-trip price found within the last 5 days was $283 on Multiple Airlines (Dec 3-Dec 7).
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 53 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 10, 2026.
Travelers seeking maximum savings on their Atlanta to Region of Ontario flight should consider departing on Wednesday 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 16, 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.
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
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 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Atlanta to Ontario
Discover the top 4 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 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$247 | Average$561 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$265 | Average$624 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$322 | Average$583 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$347 | Average$717 | FlexibilityNo cancel fee | On-time60% |