$163+ Cheap flights from Atlanta (ATL) to Ontario
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — YYZ
Jul 6 — Jul 131
Round-trip
1 adult, Economy
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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 June 6, 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 June 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/249:05 pm
ATL
- YTZ
1 stop16h 00m
Multiple Airlines
Tue 6/308:50 am
YTZ
- ATL
1 stop25h 37m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 6/1. 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 8/198:17 am
ATL
- YTZ
1 stop9h 03m
Multiple Airlines
Mon 8/241:40 pm
YTZ
- ATL
1 stop20h 01m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/236:35 pm
ATL
- YTZ
1 stop15h 00m
Multiple Airlines
Tue 6/308:50 am
YTZ
- ATL
1 stop25h 37m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 9/38:17 am
ATL
- YTZ
1 stop9h 03m
Multiple Airlines
Mon 9/71:40 pm
YTZ
- ATL
1 stop20h 01m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/249:05 pm
ATL
- YTZ
1 stop16h 00m
Multiple Airlines
Wed 7/11:45 pm
YTZ
- ATL
1 stop8h 01m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 8/34:30 pm
ATL
- YTZ
1 stop20h 25m
Multiple Airlines
Tue 8/111:40 pm
YTZ
- ATL
1 stop20h 19m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/236:35 pm
ATL
- YTZ
1 stop15h 00m
Multiple Airlines
Wed 7/11:45 pm
YTZ
- ATL
1 stop8h 01m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 8/19:17 pm
ATL
- YTZ
1 stop15h 38m
Multiple Airlines
Mon 8/101:40 pm
YTZ
- ATL
1 stop7h 59m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 8/35:30 am
ATL
- YTZ
1 stop11h 50m
Multiple Airlines
Sun 8/91:40 pm
YTZ
- ATL
1 stop19h 20m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 8/36:35 am
ATL
- YYZ
1 stop10h 20m
Multiple Airlines
Tue 8/116:30 am
YYZ
- ATL
1 stop7h 34m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 8/59:03 pm
ATL
- YTZ
1 stop20h 17m
Multiple Airlines
Mon 8/101:40 pm
YTZ
- ATL
1 stop9h 04m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 6/236:35 am
ATL
- YYZ
1 stop7h 30m
Multiple Airlines
Tue 6/303:55 pm
YYZ
- ATL
1 stop17h 11m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$339
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 June 6, 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 June 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/225:05 am
ATL
- YTZ
1 stop17h 07m
Multiple Airlines
Wed 6/248:50 am
YTZ
- ATL
1 stop6h 28m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$356
This United Airlines deal was found by Cheapflights users on 6/1. 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 7/291:21 pm
ATL
- YOW
1 stop8h 14m
United Airlines
Sat 8/17:30 pm
YOW
- ATL
1 stop5h 00m
United Airlines
Deal found 6/1![United Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 6/5. 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 9/410:00 am
ATL
- YYZ
Nonstop2h 23m
Delta
Tue 9/82:10 pm
YYZ
- ATL
1 stop9h 10m
Delta
Deal found 6/5![Delta logo]()
$585
This KAYAK deal was found by Cheapflights users on 6/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/254:55 pm
ATL
- YUL
1 stop16h 55m
American Airlines
Fri 6/261:03 pm
YUL
- ATL
1 stop4h 48m
American Airlines
Deal found 6/5![American Airlines logo]()
$600
This Justfly.com deal was found by Cheapflights users on 6/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:25 pm
ATL
- YOW
1 stop15h 10m
WestJet
Mon 8/174:15 pm
YOW
- ATL
2 stops14h 40m
WestJet
Deal found 6/5![WestJet logo]()
$619
This Air Canada deal was found by Cheapflights users on 6/1. 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 8/287:00 am
ATL
- YSB
1 stop6h 45m
Air Canada
Sat 9/59:45 am
YSB
- ATL
1 stop4h 35m
Air Canada
Deal found 6/1![Air Canada logo]()
$684
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 9/25:05 am
ATL
- YTZ
1 stop7h 52m
Multiple Airlines
Tue 9/810:05 am
YTZ
- ATL
1 stop7h 12m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$380
This United Airlines deal was found by Cheapflights users on 6/1. 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 8/139:50 am
ATL
- YOW
1 stop14h 04m
United Airlines
Mon 8/175:57 pm
YOW
- ATL
1 stop15h 44m
United Airlines
Deal found 6/1![United Airlines logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 6/259:18 am
ATL
- YTZ
2 stops12h 35m
Multiple Airlines
Mon 6/296:10 pm
YTZ
- ATL
1 stop14h 36m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$416
This United Airlines deal was found by Cheapflights users on 6/1. 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 7/283:30 pm
ATL
- YOW
1 stop6h 05m
United Airlines
Wed 7/297:30 pm
YOW
- ATL
1 stop5h 00m
United Airlines
Deal found 6/1![United Airlines logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/66:35 am
ATL
- YOW
1 stop8h 22m
Multiple Airlines
Wed 7/157:00 am
YOW
- ATL
2 stops16h 59m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/269:25 am
ATL
- YOW
1 stop14h 29m
United Airlines
Fri 7/36:25 am
YOW
- ATL
1 stop15h 16m
United Airlines
Deal found 6/1![United Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 5/31. 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 8/191:55 pm
ATL
- YYZ
1 stop9h 23m
Delta
Mon 8/246:00 am
YYZ
- ATL
Nonstop2h 16m
Delta
Deal found 5/31![Delta logo]()
$586
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 6/259:18 am
ATL
- YTZ
2 stops12h 35m
Multiple Airlines
Sun 6/283:05 pm
YTZ
- ATL
1 stop18h 01m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 5/31. 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 8/88:05 am
ATL
- YYZ
Nonstop2h 20m
Delta
Tue 8/116:00 am
YYZ
- ATL
1 stop14h 24m
Delta
Deal found 5/31![Delta logo]()
$591
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 6/208:53 pm
ATL
- YTZ
1 stop12h 42m
Multiple Airlines
Sun 6/283:05 pm
YTZ
- ATL
1 stop18h 01m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$496
This Delta deal was found by Cheapflights users on 6/1. 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 9/1911:00 am
ATL
- YUL
Nonstop2h 38m
Delta
Tue 9/299:30 am
YUL
- ATL
1 stop9h 03m
Delta
Deal found 6/1![Delta logo]()
$602
This Delta deal was found by Cheapflights users on 6/1. 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 9/79:20 pm
ATL
- YUL
Nonstop2h 39m
Delta
Tue 9/159:30 am
YUL
- ATL
1 stop9h 03m
Delta
Deal found 6/1![Delta logo]()
$602
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/188:21 pm
ATL
- YOW
1 stop18h 12m
Multiple Airlines
Wed 6/2411:00 am
YOW
- ATL
2 stops12h 24m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$500
This United Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:50 am
ATL
- YTZ
1 stop8h 52m
United Airlines
Wed 9/212:15 pm
YTZ
- ATL
1 stop11h 11m
United Airlines
Deal found 5/31![United Airlines logo]()
$639
This Delta deal was found by Cheapflights users on 6/5. 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 7/510:05 am
ATL
- YOW
1 stop7h 30m
Delta
Wed 7/296:55 am
YOW
- ATL
1 stop7h 09m
Delta
Deal found 6/5![Delta logo]()
$613
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 10/29:30 am
ATL
- YTZ
1 stop8h 30m
Multiple Airlines
Mon 10/510:05 am
YTZ
- ATL
1 stop7h 12m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 6/1. 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 6/257:37 pm
ATL
- YYZ
Nonstop2h 22m
Delta
Tue 6/306:15 am
YYZ
- ATL
Nonstop2h 25m
Delta
Deal found 6/1![Delta logo]()
$615
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 6/275:01 am
ATL
- YUL
1 stop13h 14m
Multiple Airlines
Wed 7/16:50 pm
YUL
- ATL
Nonstop3h 04m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$513
This Delta deal was found by Cheapflights users on 5/31. 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 8/37:35 pm
ATL
- YYZ
Nonstop2h 24m
Delta
Fri 8/76:34 pm
YYZ
- ATL
Nonstop2h 30m
Delta
Deal found 5/31![Delta logo]()
$615
This Delta deal was found by Cheapflights users on 6/1. 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 8/178:05 am
ATL
- YYZ
Nonstop2h 20m
Delta
Fri 8/216:34 pm
YYZ
- ATL
Nonstop2h 30m
Delta
Deal found 6/1![Delta logo]()
$615
This Kiwi.com deal was found by Cheapflights users on 6/1. 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 7/1610:05 am
ATL
- YTZ
1 stop7h 55m
Multiple Airlines
Mon 7/209:15 am
YTZ
- ATL
2 stops9h 22m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$578
This Delta deal was found by Cheapflights users on 6/1. 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 7/88:05 am
ATL
- YYZ
Nonstop2h 20m
Delta
Mon 7/136:00 am
YYZ
- ATL
Nonstop2h 17m
Delta
Deal found 6/1![Delta logo]()
$615
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:30 am
ATL
- YSB
2 stops8h 15m
United Airlines
Sat 9/59:45 am
YSB
- ATL
2 stops9h 44m
United Airlines
Deal found 6/5![United Airlines logo]()
$967
This Delta deal was found by Cheapflights users on 6/1. 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 8/198:05 am
ATL
- YYZ
Nonstop2h 20m
Delta
Fri 8/211:38 pm
YYZ
- ATL
Nonstop2h 14m
Delta
Deal found 6/1![Delta logo]()
$615
Last-minute flights from Atlanta to OntarioDiscover last-minute flight deals from Atlanta to Ontario. Data last updated June 6, 2026 and is based on user searches.
Discover last-minute flight deals from Atlanta to Ontario. Data last updated June 6, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/225:05 am
ATL
- YTZ
1 stop17h 07m
Multiple Airlines
Wed 6/248:50 am
YTZ
- ATL
1 stop6h 28m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/236:35 pm
ATL
- YTZ
1 stop15h 00m
Multiple Airlines
Tue 6/308:50 am
YTZ
- ATL
1 stop25h 37m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/236:35 pm
ATL
- YTZ
1 stop15h 00m
Multiple Airlines
Wed 7/11:45 pm
YTZ
- ATL
1 stop8h 01m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 6/236:35 am
ATL
- YYZ
1 stop7h 30m
Multiple Airlines
Tue 6/303:55 pm
YYZ
- ATL
1 stop17h 11m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/249:05 pm
ATL
- YTZ
1 stop16h 00m
Multiple Airlines
Tue 6/308:50 am
YTZ
- ATL
1 stop25h 37m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/249:05 pm
ATL
- YTZ
1 stop16h 00m
Multiple Airlines
Wed 7/11:45 pm
YTZ
- ATL
1 stop8h 01m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 6/306:35 am
ATL
- YYZ
1 stop7h 30m
Multiple Airlines
Tue 7/76:30 am
YYZ
- ATL
1 stop16h 50m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/15:40 am
ATL
- YTZ
1 stop11h 50m
Multiple Airlines
Sat 7/41:45 pm
YTZ
- ATL
1 stop10h 03m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 7/89:03 pm
ATL
- YTZ
1 stop20h 27m
Multiple Airlines
Tue 7/149:15 am
YTZ
- ATL
1 stop13h 29m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 7/2410:48 pm
ATL
- YYZ
1 stop15h 17m
Multiple Airlines
Tue 7/286:30 am
YYZ
- ATL
1 stop7h 34m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/286:35 am
ATL
- YYZ
1 stop7h 30m
Multiple Airlines
Thu 8/66:30 am
YYZ
- ATL
1 stop7h 46m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/286:35 am
ATL
- YYZ
1 stop10h 20m
Multiple Airlines
Thu 7/306:30 am
YYZ
- ATL
1 stop16h 50m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$357
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 June 6, 2026.
Search for one-way flight options from Atlanta to Ontario. Find affordable one-way fares based on user searches. Data last updated June 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 6/2410:40 pm
ATL
- YUL
2 stops13h 30m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 6/238:53 pm
ATL
- YUL
1 stop22h 20m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/185:01 am
ATL
- YUL
1 stop13h 14m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 8/185:05 am
ATL
- YUL
2 stops13h 05m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 8/15:01 am
ATL
- YUL
2 stops31h 09m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/45:01 am
ATL
- YUL
1 stop13h 14m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 8/268:17 am
ATL
- YUL
2 stops13h 53m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 8/208:17 am
ATL
- YUL
2 stops11h 53m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 8/410:40 pm
ATL
- YOW
2 stops19h 14m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/15:05 am
ATL
- YUL
2 stops11h 57m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 6/1. 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 6/2910:40 pm
ATL
- YUL
2 stops15h 00m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 6/1. 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 6/2610:40 pm
ATL
- YUL
1 stop15h 28m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$189
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 June 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $298 (Kiwi.com) |
One-way from | $163 (Kiwi.com) |
Popular in | May |
Cheapest in | November |
Average price | $614 |
Good round-trip deal | $668 or less |
Good one-way deal | $315 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 2,558,603 searches. Data last updated June 6, 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
AtlantaToronto
ATL - YTZ
ATLYTZ
Atlanta Hartsfield-Jackson
Mon 6/22
5:05 am-10:12 pm
1 stop17h 07m
Toronto Island
Wed 6/24
8:50 am-3:18 pm
1 stop6h 28m
$356
AtlantaToronto
ATL - YTZ
ATLYTZ
Atlanta Hartsfield-Jackson
Wed 9/2
5:05 am-12:57 pm
1 stop7h 52m
Toronto Island
Tue 9/8
10:05 am-5:17 pm
1 stop7h 12m
$380
AtlantaToronto
ATL - YTZ
ATLYTZ
Atlanta Hartsfield-Jackson
Thu 6/25
9:18 am-9:53 pm
2 stops12h 35m
Toronto Island
Mon 6/29
6:10 pm-8:46 am
1 stop14h 36m
$416
AtlantaOttawa
ATL - YOW
ATLYOW
Atlanta Hartsfield-Jackson
Mon 7/6
6:35 am-2:57 pm
1 stop8h 22m
Ottawa
Wed 7/15
7:00 am-11:59 pm
2 stops16h 59m
$418
AtlantaOttawa
ATL - YOW
ATLYOW
Atlanta Hartsfield-Jackson
Wed 7/29
1:21 pm-9:35 pm
1 stop8h 14m
Ottawa
Sat 8/1
7:30 pm-12:30 am
1 stop5h 00m
$423
AtlantaOttawa
ATL - YOW
ATLYOW
Atlanta Hartsfield-Jackson
Thu 8/13
9:50 am-11:54 pm
1 stop14h 04m
Ottawa
Mon 8/17
5:57 pm-9:41 am
1 stop15h 44m
$423
AtlantaOttawa
ATL - YOW
ATLYOW
Atlanta Hartsfield-Jackson
Tue 7/28
3:30 pm-9:35 pm
1 stop6h 05m
Ottawa
Wed 7/29
7:30 pm-12:30 am
1 stop5h 00m
$423
AtlantaOttawa
ATL - YOW
ATLYOW
Atlanta Hartsfield-Jackson
Fri 6/26
9:25 am-11:54 pm
1 stop14h 29m
Ottawa
Fri 7/3
6:25 am-9:41 pm
1 stop15h 16m
$423
AtlantaToronto
ATL - YTZ
ATLYTZ
Atlanta Hartsfield-Jackson
Thu 6/25
9:18 am-9:53 pm
2 stops12h 35m
Toronto Island
Sun 6/28
3:05 pm-9:06 am
1 stop18h 01m
$462
AtlantaToronto
ATL - YTZ
ATLYTZ
Atlanta Hartsfield-Jackson
Sat 6/20
8:53 pm-9:35 am
1 stop12h 42m
Toronto Island
Sun 6/28
3:05 pm-9:06 am
1 stop18h 01m
$496
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-YTZ
ATL-YYZ
ATL-YOW
ATL-YUL
ATL-YSB
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-YTZ
ATL-YYZ
ATL-YOW
ATL-YUL
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 $55). Flying from Atlanta to Region of Ontario in March is currently the most expensive (average of $247). 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 June 6, 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 June 6, 2026.
The most flights from ATL to CAON are scheduled on a Wednesday (26 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Atlanta to Region of Ontario?
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 80 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 May 30, 2026.
Travelers seeking maximum savings on their Atlanta to Region of Ontario flight should consider departing on Monday 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 June 6, 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.
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Overall
7.9
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 June 6, 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 2,558,603 searches. Data last updated June 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$241 | Average$588 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$261 | Average$601 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$271 | Average$577 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$279 | Average$688 | FlexibilityNo cancel fee | On-time60% |