$59+ Cheap flights from Ontario (ONT) to Arizona
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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHX
Aug 19 — Aug 261
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Arizona 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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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 Ontario to Arizona
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Cheapest flights from Ontario to ArizonaExplore the most affordable flight options available from Ontario to Arizona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 20, 2026.
Explore the most affordable flight options available from Ontario to Arizona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 10/268:54 pm
ONT
- LAS
Nonstop1h 08m
Frontier
Tue 11/173:00 pm
LAS
- ONT
Nonstop1h 10m
Frontier
Deal found 7/15![Frontier logo]()
$111
This American Airlines deal was found by Cheapflights users on 7/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:59 pm
ONT
- PHX
Nonstop1h 26m
American Airlines
Sat 8/2910:45 am
PHX
- ONT
Nonstop1h 18m
American Airlines
Deal found 7/15![American Airlines logo]()
$117
This American Airlines deal was found by Cheapflights users on 7/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:05 pm
ONT
- PHX
Nonstop1h 21m
American Airlines
Tue 11/1011:36 am
PHX
- ONT
Nonstop1h 27m
American Airlines
Deal found 7/16![American Airlines logo]()
$118
This American Airlines deal was found by Cheapflights users on 7/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:04 pm
ONT
- PHX
Nonstop1h 21m
American Airlines
Thu 10/19:26 pm
PHX
- ONT
Nonstop1h 17m
American Airlines
Deal found 7/15![American Airlines logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Tue 11/174:27 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Wed 11/1810:49 am
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 7/14![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/128:58 am
ONT
- LAS
1 stop9h 20m
Frontier
Wed 8/198:39 am
LAS
- ONT
1 stop5h 24m
Frontier
Deal found 7/15![Frontier logo]()
$123
This Super.com deal was found by Cheapflights users on 7/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:47 am
ONT
- LAS
Nonstop1h 10m
Frontier
Sat 8/152:05 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 7/17![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 7/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:15 am
ONT
- LAS
Nonstop1h 10m
Frontier
Sat 8/222:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 7/14![Frontier logo]()
$126
This Southwest deal was found by Cheapflights users on 7/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:35 pm
ONT
- PHX
Nonstop1h 20m
Southwest
Wed 8/199:15 am
PHX
- ONT
1 stop4h 20m
Southwest
Deal found 7/15![Southwest logo]()
$127
This Super.com deal was found by Cheapflights users on 7/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/84:09 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Sat 8/157:00 am
LAS
- ONT
Nonstop1h 03m
Frontier
Deal found 7/16![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:08 pm
ONT
- LAS
Nonstop1h 06m
Frontier
Mon 8/102:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 7/15![Frontier logo]()
$128
This Super.com deal was found by Cheapflights users on 7/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:47 am
ONT
- LAS
Nonstop1h 10m
Frontier
Thu 8/137:00 am
LAS
- ONT
Nonstop1h 03m
Frontier
Deal found 7/15![Frontier logo]()
$129
Best flights from Ontario to ArizonaDiscover carefully curated flight deals from Ontario to Arizona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 20, 2026.
Discover carefully curated flight deals from Ontario to Arizona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 20, 2026.
This Southwest deal was found by Cheapflights users on 7/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:20 am
ONT
- PHX
1 stop4h 40m
Southwest
Sat 10/109:55 am
PHX
- ONT
Nonstop1h 15m
Southwest
Deal found 7/14![Southwest logo]()
$127
This Southwest deal was found by Cheapflights users on 7/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:40 pm
ONT
- PHX
Nonstop1h 20m
Southwest
Mon 8/106:10 pm
PHX
- ONT
1 stop3h 35m
Southwest
Deal found 7/15![Southwest logo]()
$127
This Southwest deal was found by Cheapflights users on 7/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:25 am
ONT
- PHX
1 stop4h 25m
Southwest
Thu 10/85:10 pm
PHX
- ONT
1 stop5h 05m
Southwest
Deal found 7/16![Southwest logo]()
$137
This Southwest deal was found by Cheapflights users on 7/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:10 pm
ONT
- PHX
1 stop5h 20m
Southwest
Thu 10/2211:45 am
PHX
- ONT
2 stops5h 50m
Southwest
Deal found 7/14![Southwest logo]()
$142
This Southwest deal was found by Cheapflights users on 7/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:45 am
ONT
- PHX
1 stop5h 55m
Southwest
Tue 8/187:10 am
PHX
- ONT
2 stops6h 25m
Southwest
Deal found 7/14![Southwest logo]()
$142
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:29 pm
ONT
- FLG
1 stop3h 15m
American Airlines
Mon 10/196:20 pm
FLG
- ONT
1 stop3h 34m
American Airlines
Deal found 7/14![American Airlines logo]()
$444
This Southwest deal was found by Cheapflights users on 7/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:55 am
ONT
- PHX
Nonstop1h 15m
Southwest
Fri 10/97:50 am
PHX
- ONT
Nonstop1h 15m
Southwest
Deal found 7/14![Southwest logo]()
$157
This United Airlines deal was found by Cheapflights users on 7/16. 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 8/211:56 pm
ONT
- TUS
1 stop7h 14m
United Airlines
Sun 8/237:02 am
TUS
- ONT
1 stop5h 10m
United Airlines
Deal found 7/16![United Airlines logo]()
$465
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:04 pm
ONT
- TUS
1 stop4h 33m
Delta
Sun 10/187:05 am
TUS
- ONT
1 stop5h 17m
Delta
Deal found 7/15![Delta logo]()
$467
This Southwest deal was found by Cheapflights users on 7/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:15 pm
ONT
- PHX
Nonstop1h 20m
Southwest
Sat 10/249:55 am
PHX
- ONT
Nonstop1h 15m
Southwest
Deal found 7/16![Southwest logo]()
$157
This Alaska Airlines deal was found by Cheapflights users on 7/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/224:50 pm
ONT
- TUS
2 stops21h 15m
Alaska Airlines
Wed 8/263:03 pm
TUS
- ONT
2 stops18h 48m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$546
This Southwest deal was found by Cheapflights users on 7/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:00 am
ONT
- PHX
1 stop4h 40m
Southwest
Wed 9/99:00 am
PHX
- ONT
Nonstop1h 25m
Southwest
Deal found 7/18![Southwest logo]()
$159
This Southwest deal was found by Cheapflights users on 7/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:40 am
ONT
- PHX
Nonstop1h 25m
Southwest
Sat 8/294:10 pm
PHX
- ONT
Nonstop1h 10m
Southwest
Deal found 7/18![Southwest logo]()
$181
This Southwest deal was found by Cheapflights users on 7/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:25 am
ONT
- PHX
1 stop7h 05m
Southwest
Wed 8/2612:55 pm
PHX
- ONT
Nonstop1h 10m
Southwest
Deal found 7/17![Southwest logo]()
$191
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:15 am
ONT
- FLG
1 stop3h 34m
American Airlines
Wed 8/197:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 7/14![American Airlines logo]()
$455
This Southwest deal was found by Cheapflights users on 7/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/153:00 pm
ONT
- PHX
2 stops5h 20m
Southwest
Wed 12/169:05 am
PHX
- ONT
Nonstop1h 20m
Southwest
Deal found 7/18![Southwest logo]()
$196
This United Airlines deal was found by Cheapflights users on 7/18. 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 8/215:00 am
ONT
- TUS
1 stop7h 27m
United Airlines
Sat 8/225:30 am
TUS
- ONT
1 stop7h 20m
United Airlines
Deal found 7/18![United Airlines logo]()
$465
This United Airlines deal was found by Cheapflights users on 7/18. 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 9/85:00 am
ONT
- TUS
1 stop7h 27m
United Airlines
Thu 9/101:29 pm
TUS
- ONT
1 stop7h 24m
United Airlines
Deal found 7/18![United Airlines logo]()
$465
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:05 pm
ONT
- FLG
1 stop4h 39m
American Airlines
Tue 10/136:30 am
FLG
- ONT
1 stop5h 44m
American Airlines
Deal found 7/19![American Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 7/17. 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 8/91:18 pm
ONT
- TUS
1 stop6h 54m
United Airlines
Tue 8/117:00 am
TUS
- ONT
1 stop5h 12m
United Airlines
Deal found 7/17![United Airlines logo]()
$476
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:59 pm
ONT
- FLG
1 stop48h 21m
American Airlines
Tue 9/810:30 am
FLG
- ONT
1 stop49h 36m
American Airlines
Deal found 7/19![American Airlines logo]()
$518
This Southwest deal was found by Cheapflights users on 7/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:30 pm
ONT
- LAS
1 stop3h 55m
Southwest
Sat 8/85:55 am
LAS
- ONT
2 stops6h 25m
Southwest
Deal found 7/15![Southwest logo]()
$242
This American Airlines deal was found by Cheapflights users on 7/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:11 am
ONT
- FLG
1 stop4h 57m
American Airlines
Sat 7/256:50 am
FLG
- ONT
1 stop5h 12m
American Airlines
Deal found 7/18![American Airlines logo]()
$566
This Southwest deal was found by Cheapflights users on 7/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:55 am
ONT
- LAS
1 stop5h 50m
Southwest
Sat 8/158:00 am
LAS
- ONT
2 stops6h 15m
Southwest
Deal found 7/18![Southwest logo]()
$272
This Southwest deal was found by Cheapflights users on 7/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:00 am
ONT
- LAS
1 stop3h 25m
Southwest
Sat 8/295:55 am
LAS
- ONT
2 stops6h 25m
Southwest
Deal found 7/18![Southwest logo]()
$272
This American Airlines deal was found by Cheapflights users on 7/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/241:11 pm
ONT
- FLG
1 stop4h 38m
American Airlines
Sun 7/266:27 pm
FLG
- ONT
1 stop3h 16m
American Airlines
Deal found 7/17![American Airlines logo]()
$639
This Southwest deal was found by Cheapflights users on 7/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:35 am
ONT
- LAS
2 stops6h 20m
Southwest
Sat 8/228:00 am
LAS
- ONT
1 stop3h 15m
Southwest
Deal found 7/18![Southwest logo]()
$272
This Southwest deal was found by Cheapflights users on 7/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:10 am
ONT
- LAS
2 stops5h 15m
Southwest
Fri 8/217:40 am
LAS
- ONT
1 stop4h 30m
Southwest
Deal found 7/14![Southwest logo]()
$273
This American Airlines deal was found by Cheapflights users on 7/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:11 am
ONT
- FLG
1 stop3h 36m
American Airlines
Fri 7/246:27 pm
FLG
- ONT
1 stop3h 16m
American Airlines
Deal found 7/18![American Airlines logo]()
$708
This Southwest deal was found by Cheapflights users on 7/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:40 am
ONT
- LAS
Nonstop1h 05m
Southwest
Sun 10/188:00 am
LAS
- ONT
Nonstop1h 05m
Southwest
Deal found 7/19![Southwest logo]()
$273
Last-minute flights from Ontario to ArizonaDiscover last-minute flight deals from Ontario to Arizona. Data last updated July 20, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Arizona. Data last updated July 20, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 7/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/43:40 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Mon 8/107:00 am
LAS
- ONT
Nonstop1h 03m
Frontier
Deal found 7/15![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:08 pm
ONT
- LAS
Nonstop1h 06m
Frontier
Mon 8/102:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 7/15![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 8/84:09 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Mon 8/102:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 7/17![Frontier logo]()
$135
This Super.com deal was found by Cheapflights users on 7/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:47 am
ONT
- LAS
Nonstop1h 10m
Frontier
Thu 8/137:00 am
LAS
- ONT
Nonstop1h 03m
Frontier
Deal found 7/15![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/1011:47 am
ONT
- LAS
Nonstop1h 10m
Frontier
Wed 8/127:23 pm
LAS
- ONT
1 stop15h 39m
Frontier
Deal found 7/15![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/128:58 am
ONT
- LAS
1 stop9h 20m
Frontier
Wed 8/198:39 am
LAS
- ONT
1 stop5h 24m
Frontier
Deal found 7/15![Frontier logo]()
$123
This Southwest deal was found by Cheapflights users on 7/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:35 pm
ONT
- PHX
Nonstop1h 20m
Southwest
Wed 8/199:15 am
PHX
- ONT
1 stop4h 20m
Southwest
Deal found 7/15![Southwest logo]()
$127
This Southwest deal was found by Cheapflights users on 7/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:00 pm
ONT
- PHX
1 stop5h 10m
Southwest
Thu 8/135:40 am
PHX
- ONT
1 stop4h 15m
Southwest
Deal found 7/16![Southwest logo]()
$137
This Super.com deal was found by Cheapflights users on 7/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:47 am
ONT
- LAS
Nonstop1h 10m
Frontier
Sat 8/152:05 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 7/17![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 7/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:15 am
ONT
- LAS
Nonstop1h 10m
Frontier
Sat 8/222:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 7/14![Frontier logo]()
$126
This American Airlines deal was found by Cheapflights users on 7/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:59 pm
ONT
- PHX
Nonstop1h 26m
American Airlines
Sat 8/2910:45 am
PHX
- ONT
Nonstop1h 18m
American Airlines
Deal found 7/15![American Airlines logo]()
$117
This Frontier deal was found by Cheapflights users on 7/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:40 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Wed 8/262:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 7/14![Frontier logo]()
$133
One-way flights from Ontario to ArizonaSearch for one-way flight options from Ontario to Arizona. Find affordable one-way fares based on user searches. Data last updated July 20, 2026.
Search for one-way flight options from Ontario to Arizona. Find affordable one-way fares based on user searches. Data last updated July 20, 2026.
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:59 pm
ONT
- PHX
Nonstop1h 26m
American Airlines
Deal found 7/19![American Airlines logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 8/158:58 am
ONT
- LAS
1 stop8h 27m
Frontier
Deal found 7/16![Frontier logo]()
$62
This Super.com deal was found by Cheapflights users on 7/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/64:09 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Deal found 7/15![Frontier logo]()
$63
This Frontier deal was found by Cheapflights users on 7/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/134:09 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Deal found 7/16![Frontier logo]()
$64
This Super.com deal was found by Cheapflights users on 7/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:50 am
ONT
- LAS
Nonstop1h 10m
Frontier
Deal found 7/15![Frontier logo]()
$66
This Booking.com deal was found by Cheapflights users on 7/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:40 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Deal found 7/15![Frontier logo]()
$67
This Mytrip deal was found by Cheapflights users on 7/16. 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 9/511:50 am
ONT
- LAS
Nonstop1h 10m
Frontier
Deal found 7/16![Frontier logo]()
$68
This Southwest deal was found by Cheapflights users on 7/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:25 am
ONT
- PHX
1 stop5h 00m
Southwest
Deal found 7/19![Southwest logo]()
$69
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/611:15 am
ONT
- LAS
Nonstop1h 10m
Frontier
Deal found 7/15![Frontier logo]()
$69
This CheapOair deal was found by Cheapflights users on 7/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:49 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Deal found 7/14![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 9/1411:38 am
ONT
- PHX
2 stops23h 47m
Frontier
Deal found 7/15![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 8/178:58 am
ONT
- PHX
2 stops23h 00m
Frontier
Deal found 7/17![Frontier logo]()
$86
Find flight deals from Ontario to Arizona
Keep the following information in mind while searching for Ontario to Arizona flight deals. Data was last updated July 20, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $111 (Kiwi.com) |
One-way from | $59 (Southwest) |
Popular in | June |
Cheapest in | December |
Average price | $201 |
Good round-trip deal | $360 or less |
Good one-way deal | $198 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Arizona 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 July 20, 2026.
Use the filters below to find and compare flights from Ontario to Arizona that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Wed 10/7
6:20 am-11:00 am
1 stop4h 40m
Phoenix Sky Harbor Intl
Sat 10/10
9:55 am-11:10 am
Nonstop1h 15m
$127
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Mon 8/10
2:40 pm-4:00 pm
Nonstop1h 20m
Phoenix Sky Harbor Intl
Mon 8/10
6:10 pm-9:45 pm
1 stop3h 35m
$127
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Tue 10/6
8:25 am-12:50 pm
1 stop4h 25m
Phoenix Sky Harbor Intl
Thu 10/8
5:10 pm-10:15 pm
1 stop5h 05m
$137
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Wed 10/21
3:10 pm-8:30 pm
1 stop5h 20m
Phoenix Sky Harbor Intl
Thu 10/22
11:45 am-5:35 pm
2 stops5h 50m
$142
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Tue 8/11
7:45 am-1:40 pm
1 stop5h 55m
Phoenix Sky Harbor Intl
Tue 8/18
7:10 am-1:35 pm
2 stops6h 25m
$142
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Wed 10/7
10:55 am-12:10 pm
Nonstop1h 15m
Phoenix Sky Harbor Intl
Fri 10/9
7:50 am-9:05 am
Nonstop1h 15m
$157
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Fri 10/23
4:15 pm-5:35 pm
Nonstop1h 20m
Phoenix Sky Harbor Intl
Sat 10/24
9:55 am-11:10 am
Nonstop1h 15m
$157
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Sat 9/5
11:00 am-3:40 pm
1 stop4h 40m
Phoenix Sky Harbor Intl
Wed 9/9
9:00 am-10:25 am
Nonstop1h 25m
$159
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Wed 8/26
6:40 am-8:05 am
Nonstop1h 25m
Phoenix Sky Harbor Intl
Sat 8/29
4:10 pm-5:20 pm
Nonstop1h 10m
$181
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Sat 8/22
9:25 am-4:30 pm
1 stop7h 05m
Phoenix Sky Harbor Intl
Wed 8/26
12:55 pm-2:05 pm
Nonstop1h 10m
$191
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Arizona
Have a flexible travel schedule? Discover the best time to fly to Arizona from Ontario with our price prediction graph.
ONT-LAS
ONT-PHX
ONT-TUS
ONT-FLG
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 Ontario to Arizona
ONT-USAZ
ONT-LAS
ONT-PHX
ONT-TUS
ONT-FLG
What is the cheapest month to book a flight from Ontario to Arizona?
Currently, September is the cheapest month in which you can book a flight from Ontario to Arizona (average of $173). Flying from Ontario to Arizona in July is currently the most expensive (average of $376). 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 ONT to AZ?
Find hourly flight availability from Ontario to Arizona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 20, 2026.
It’s optimal to fly from Ontario to Arizona at noon. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the evening.
Weekly flight availability from Ontario to Arizona
Explore weekly flight availability from Ontario to Arizona. 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 July 20, 2026.
The most flights from ONT to USAZ are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Ontario to Arizona?
How far ahead should I book a flight from Ontario to Arizona?
To ensure you get the cheapest price possible for a flight from Ontario to Arizona, you should look to book at least 40 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Ontario to Arizona?
Use this chart to determine the cheapest time to fly round-trip from Ontario to Arizona. Price data was last updated on July 18, 2026.
Travelers seeking maximum savings on their Ontario to Arizona flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Arizona
Get insights into the airlines that provide service to Arizona. 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 Arizona. Reviews last updated July 20, 2026.
Read reviews from past customers who have flown Southwest,American Airlines, andJetBlue from Ontario to Arizona. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Ontario to Arizona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Ontario to Arizona
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Arizona by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Arizona by cabin class
Find flights from Ontario to Arizona, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Arizona flights
Browse other Ontario and Arizona flight options. Last updated on July 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Arizona flights
Consider these flights traveling from Ontario to Arizona.
Top 4 airlines flying from Ontario to Arizona
Discover the top 4 airlines that operate flights from Ontario to Arizona. 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 July 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$72 | Average$181 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$114 | Average$425 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$125 | Average$372 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$228 | Average$308 | FlexibilityNo cancel fee | On-time62% |