$35+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHX
Jun 21 — Jun 281
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 May 22, 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 May 22, 2026.
This Frontier deal was found by Cheapflights users on 5/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:49 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Mon 9/213:00 pm
LAS
- ONT
Nonstop1h 10m
Frontier
Deal found 5/19![Frontier logo]()
$75
This Frontier deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 9/1411:16 am
ONT
- LAS
Nonstop1h 11m
Frontier
Tue 9/157:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 5/20![Frontier logo]()
$76
This Trip.com deal was found by Cheapflights users on 5/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:43 am
ONT
- LAS
Nonstop1h 10m
Frontier
Sat 8/86:46 pm
LAS
- ONT
Nonstop1h 07m
Frontier
Deal found 5/18![Frontier logo]()
$78
This Super.com deal was found by Cheapflights users on 5/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/273:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Mon 8/311:56 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 5/19![Frontier logo]()
$84
This Super.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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.
Wed 8/53:40 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Sat 8/82:05 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 5/21![Frontier logo]()
$87
This Frontier deal was found by Cheapflights users on 5/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:16 am
ONT
- LAS
Nonstop1h 11m
Frontier
Thu 9/243:00 pm
LAS
- ONT
Nonstop1h 10m
Frontier
Deal found 5/19![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 5/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/163:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Fri 6/191:55 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 5/18![Frontier logo]()
$92
This Frontier deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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.
Sat 8/111:43 am
ONT
- LAS
Nonstop1h 10m
Frontier
Wed 8/51:56 pm
LAS
- ONT
Nonstop1h 11m
Frontier
Deal found 5/20![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 9/1711:16 am
ONT
- LAS
Nonstop1h 11m
Frontier
Mon 9/217:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 5/20![Frontier logo]()
$94
This FlightHub deal was found by Cheapflights users on 5/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:33 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Fri 6/126:43 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 5/18![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
Sun 6/1411:58 am
ONT
- LAS
Nonstop1h 08m
Frontier
Tue 6/168:00 am
LAS
- ONT
Nonstop1h 07m
Frontier
Deal found 5/17![Frontier logo]()
$96
This Southwest deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 7/14:35 pm
ONT
- PHX
Nonstop1h 15m
Southwest
Tue 7/79:50 pm
PHX
- ONT
Nonstop1h 10m
Southwest
Deal found 5/21![Southwest logo]()
$137
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 May 22, 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 May 22, 2026.
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/238:25 pm
ONT
- LAS
Nonstop1h 05m
Southwest
Tue 7/73:20 pm
LAS
- ONT
1 stop4h 40m
Southwest
Deal found 5/20![Southwest logo]()
$147
This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:39 pm
ONT
- LAS
1 stop4h 31m
United Airlines
Wed 6/106:20 pm
LAS
- ONT
1 stop4h 17m
United Airlines
Deal found 5/19![United Airlines logo]()
$263
This Southwest deal was found by Cheapflights users on 5/17. 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.
Tue 6/164:05 pm
ONT
- LAS
1 stop5h 25m
Southwest
Tue 6/2311:20 am
LAS
- ONT
1 stop5h 45m
Southwest
Deal found 5/17![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 7/84:35 pm
ONT
- LAS
1 stop4h 40m
Southwest
Wed 7/1512:45 pm
LAS
- ONT
2 stops5h 50m
Southwest
Deal found 5/21![Southwest logo]()
$162
This Southwest deal was found by Cheapflights users on 5/18. 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 6/184:20 pm
ONT
- PHX
1 stop6h 20m
Southwest
Wed 6/246:20 pm
PHX
- ONT
1 stop3h 50m
Southwest
Deal found 5/18![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 5/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/14:57 pm
ONT
- TUS
1 stop4h 33m
Delta
Sat 6/137:05 am
TUS
- ONT
1 stop5h 05m
Delta
Deal found 5/17![Delta logo]()
$463
This American Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 6/236:10 am
ONT
- FLG
1 stop3h 44m
American Airlines
Tue 6/306:50 am
FLG
- ONT
1 stop5h 14m
American Airlines
Deal found 5/22![American Airlines logo]()
$484
This Southwest deal was found by Cheapflights users on 5/19. 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.
Thu 6/184:20 pm
ONT
- PHX
1 stop6h 20m
Southwest
Thu 6/256:40 am
PHX
- ONT
1 stop6h 05m
Southwest
Deal found 5/19![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 5/19. 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.
Wed 7/295:45 pm
ONT
- LAS
1 stop3h 35m
Southwest
Sun 8/25:05 am
LAS
- ONT
1 stop4h 00m
Southwest
Deal found 5/19![Southwest logo]()
$223
This Southwest deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 7/76:25 pm
ONT
- LAS
1 stop3h 45m
Southwest
Mon 7/137:10 am
LAS
- ONT
1 stop4h 55m
Southwest
Deal found 5/21![Southwest logo]()
$223
This Southwest deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 6/296:30 am
ONT
- LAS
2 stops5h 05m
Southwest
Tue 7/75:55 am
LAS
- ONT
1 stop3h 20m
Southwest
Deal found 5/21![Southwest logo]()
$228
This United Airlines deal was found by Cheapflights users on 5/18. 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 7/285:00 am
ONT
- TUS
1 stop7h 32m
United Airlines
Tue 8/45:45 am
TUS
- ONT
1 stop7h 02m
United Airlines
Deal found 5/18![United Airlines logo]()
$470
This Southwest deal was found by Cheapflights users on 5/17. 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.
Thu 8/62:40 pm
ONT
- LAS
1 stop4h 40m
Southwest
Sun 8/97:00 am
LAS
- ONT
1 stop3h 40m
Southwest
Deal found 5/17![Southwest logo]()
$243
This American Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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.
Sun 5/311:10 pm
ONT
- FLG
1 stop4h 40m
American Airlines
Tue 6/96:50 am
FLG
- ONT
1 stop5h 14m
American Airlines
Deal found 5/20![American Airlines logo]()
$526
This Southwest deal was found by Cheapflights users on 5/17. 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.
Wed 7/17:20 pm
ONT
- PHX
Nonstop1h 15m
Southwest
Sun 7/55:45 am
PHX
- ONT
1 stop5h 35m
Southwest
Deal found 5/17![Southwest logo]()
$248
This American Airlines deal was found by Cheapflights users on 5/18. 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.
Thu 5/286:10 am
ONT
- FLG
1 stop5h 03m
American Airlines
Tue 6/21:48 pm
FLG
- ONT
1 stop4h 34m
American Airlines
Deal found 5/18![American Airlines logo]()
$526
This Southwest deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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.
Sun 7/54:35 pm
ONT
- PHX
1 stop4h 25m
Southwest
Wed 7/812:55 pm
PHX
- ONT
Nonstop1h 10m
Southwest
Deal found 5/21![Southwest logo]()
$248
This Southwest deal was found by Cheapflights users on 5/17. 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.
Fri 6/196:30 am
ONT
- LAS
2 stops5h 05m
Southwest
Wed 6/246:45 pm
LAS
- ONT
1 stop3h 25m
Southwest
Deal found 5/17![Southwest logo]()
$248
This American Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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.
Mon 6/226:10 am
ONT
- FLG
1 stop3h 45m
American Airlines
Sun 6/286:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/22![American Airlines logo]()
$544
This Southwest deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 6/128:00 am
ONT
- PHX
Nonstop1h 15m
Southwest
Wed 6/175:25 am
PHX
- ONT
1 stop5h 25m
Southwest
Deal found 5/21![Southwest logo]()
$264
This American Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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.
Sun 6/216:10 am
ONT
- FLG
1 stop5h 03m
American Airlines
Sun 6/286:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 5/22![American Airlines logo]()
$607
This Southwest deal was found by Cheapflights users on 5/17. 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.
Thu 7/27:30 pm
ONT
- PHX
1 stop4h 35m
Southwest
Sun 7/510:55 pm
PHX
- ONT
Nonstop1h 10m
Southwest
Deal found 5/17![Southwest logo]()
$278
This Southwest deal was found by Cheapflights users on 5/19. 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.
Wed 6/105:30 am
ONT
- PHX
1 stop4h 45m
Southwest
Wed 6/104:35 pm
PHX
- ONT
2 stops5h 30m
Southwest
Deal found 5/19![Southwest logo]()
$279
This American Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 6/236:10 am
ONT
- FLG
1 stop5h 03m
American Airlines
Wed 6/241:48 pm
FLG
- ONT
1 stop4h 33m
American Airlines
Deal found 5/22![American Airlines logo]()
$676
This Southwest deal was found by Cheapflights users on 5/17. 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.
Mon 6/154:00 pm
ONT
- PHX
2 stops5h 15m
Southwest
Tue 6/167:35 pm
PHX
- ONT
1 stop3h 10m
Southwest
Deal found 5/17![Southwest logo]()
$279
This American Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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.
Sun 6/211:11 pm
ONT
- FLG
1 stop4h 39m
American Airlines
Wed 6/241:48 pm
FLG
- ONT
1 stop4h 33m
American Airlines
Deal found 5/22![American Airlines logo]()
$708
This Southwest deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 7/316:30 pm
ONT
- LAS
1 stop3h 45m
Southwest
Sun 8/25:05 am
LAS
- ONT
1 stop4h 00m
Southwest
Deal found 5/21![Southwest logo]()
$289
This American Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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.
Sun 6/211:11 pm
ONT
- FLG
1 stop4h 39m
American Airlines
Thu 6/256:50 am
FLG
- ONT
1 stop5h 14m
American Airlines
Deal found 5/22![American Airlines logo]()
$740
This Southwest deal was found by Cheapflights users on 5/18. 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.
Fri 8/146:10 am
ONT
- LAS
2 stops5h 15m
Southwest
Sun 8/167:00 am
LAS
- ONT
1 stop3h 40m
Southwest
Deal found 5/18![Southwest logo]()
$294
This Southwest deal was found by Cheapflights users on 5/19. 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.
Tue 6/237:20 pm
ONT
- TUS
1 stop3h 25m
Southwest
Tue 6/305:15 am
TUS
- ONT
1 stop6h 15m
Southwest
Deal found 5/19![Southwest logo]()
$307
Last-minute flights from Ontario to ArizonaDiscover last-minute flight deals from Ontario to Arizona. Data last updated May 22, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Arizona. Data last updated May 22, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 5/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/811:51 am
ONT
- LAS
Nonstop1h 11m
Frontier
Tue 6/96:43 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 5/18![Frontier logo]()
$107
This FlightHub deal was found by Cheapflights users on 5/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:33 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Fri 6/126:43 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 5/18![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
Sun 6/1411:58 am
ONT
- LAS
Nonstop1h 08m
Frontier
Tue 6/168:00 am
LAS
- ONT
Nonstop1h 07m
Frontier
Deal found 5/17![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 5/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/163:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Fri 6/191:55 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 5/18![Frontier logo]()
$92
This Frontier deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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.
Tue 6/161:33 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Mon 6/221:55 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 5/20![Frontier logo]()
$93
This Southwest deal was found by Cheapflights users on 5/17. 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.
Tue 6/166:25 pm
ONT
- PHX
1 stop4h 00m
Southwest
Tue 6/236:50 pm
PHX
- ONT
Nonstop1h 10m
Southwest
Deal found 5/17![Southwest logo]()
$147
This American Airlines deal was found by Cheapflights users on 5/18. 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 6/177:13 pm
ONT
- PHX
Nonstop1h 22m
American Airlines
Tue 6/238:43 pm
PHX
- ONT
Nonstop1h 14m
American Airlines
Deal found 5/18![American Airlines logo]()
$149
This Super.com deal was found by Cheapflights users on 5/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2211:58 am
ONT
- LAS
Nonstop1h 08m
Frontier
Tue 6/231:55 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 5/18![Frontier logo]()
$103
This Super.com deal was found by Cheapflights users on 5/17. 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.
Wed 6/243:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Mon 6/291:55 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 5/17![Frontier logo]()
$102
This iWofly deal was found by Cheapflights users on 5/19. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/243:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Fri 7/31:55 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 5/19![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
Thu 6/2511:58 am
ONT
- LAS
Nonstop1h 08m
Frontier
Wed 7/16:43 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 5/17![Frontier logo]()
$101
This Frontier deal was found by Cheapflights users on 5/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/283:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Wed 7/11:55 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 5/19![Frontier logo]()
$108
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 May 22, 2026.
Search for one-way flight options from Ontario to Arizona. Find affordable one-way fares based on user searches. Data last updated May 22, 2026.
This Trip.com deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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.
Wed 7/11:33 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Deal found 5/22![Frontier logo]()
$35
This Frontier deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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.
Tue 7/143:40 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Deal found 5/22![Frontier logo]()
$44
This Frontier deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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 6/173:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Deal found 5/22![Frontier logo]()
$45
This Super.com deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 8/1311:43 am
ONT
- LAS
Nonstop1h 10m
Frontier
Deal found 5/20![Frontier logo]()
$47
This Frontier deal was found by Cheapflights users on 5/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:40 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Deal found 5/19![Frontier logo]()
$48
This CheapOair deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” 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.
Mon 8/173:40 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Deal found 5/22![Frontier logo]()
$54
This Kiwi.com deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/163:34 pm
ONT
- PHX
1 stop7h 26m
Frontier
Deal found 5/20![Frontier logo]()
$58
This Kiwi.com deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/173:34 pm
ONT
- PHX
1 stop7h 26m
Frontier
Deal found 5/20![Frontier logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 8/183:34 pm
ONT
- PHX
1 stop7h 51m
Frontier
Deal found 5/21![Frontier logo]()
$65
This Frontier deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 7/1611:43 am
ONT
- LAS
Nonstop1h 10m
Frontier
Deal found 5/20![Frontier logo]()
$65
This Super.com deal was found by Cheapflights users on 5/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/203:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Deal found 5/18![Frontier logo]()
$66
This Super.com deal was found by Cheapflights users on 5/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/153:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Deal found 5/18![Frontier logo]()
$67
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 May 22, 2026.
Round-trip from | $75 (Frontier) |
|---|---|
One-way from | $35 (Trip.com) |
Popular in | March |
Cheapest in | December |
Average price | $179 |
Good round-trip deal | $372 or less |
Good one-way deal | $206 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 May 22, 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
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Tue 6/23
8:25 pm-9:30 pm
Nonstop1h 05m
Las Vegas Harry Reid Intl
Tue 7/7
3:20 pm-8:00 pm
1 stop4h 40m
$147
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Tue 6/16
4:05 pm-9:30 pm
1 stop5h 25m
Las Vegas Harry Reid Intl
Tue 6/23
11:20 am-5:05 pm
1 stop5h 45m
$157
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Wed 7/8
4:35 pm-9:15 pm
1 stop4h 40m
Las Vegas Harry Reid Intl
Wed 7/15
12:45 pm-6:35 pm
2 stops5h 50m
$162
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Thu 6/18
4:20 pm-10:40 pm
1 stop6h 20m
Phoenix Sky Harbor Intl
Wed 6/24
6:20 pm-10:10 pm
1 stop3h 50m
$187
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Thu 6/18
4:20 pm-10:40 pm
1 stop6h 20m
Phoenix Sky Harbor Intl
Thu 6/25
6:40 am-12:45 pm
1 stop6h 05m
$217
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Wed 7/29
5:45 pm-9:20 pm
1 stop3h 35m
Las Vegas Harry Reid Intl
Sun 8/2
5:05 am-9:05 am
1 stop4h 00m
$223
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Tue 7/7
6:25 pm-10:10 pm
1 stop3h 45m
Las Vegas Harry Reid Intl
Mon 7/13
7:10 am-12:05 pm
1 stop4h 55m
$223
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Mon 6/29
6:30 am-11:35 am
2 stops5h 05m
Las Vegas Harry Reid Intl
Tue 7/7
5:55 am-9:15 am
1 stop3h 20m
$228
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Thu 8/6
2:40 pm-7:20 pm
1 stop4h 40m
Las Vegas Harry Reid Intl
Sun 8/9
7:00 am-10:40 am
1 stop3h 40m
$243
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Wed 7/1
7:20 pm-8:35 pm
Nonstop1h 15m
Phoenix Sky Harbor Intl
Sun 7/5
5:45 am-11:20 am
1 stop5h 35m
$248
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, January is the cheapest month in which you can book a flight from Ontario to Arizona (average of $29). Flying from Ontario to Arizona in December is currently the most expensive (average of $149). 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 May 22, 2026.
It’s optimal to fly from Ontario to Arizona at noon. By choosing this option you can save up to 18% 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 May 22, 2026.
The most flights from ONT to USAZ are scheduled on a Monday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 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 71 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 May 16, 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. Saturday evenings 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 May 22, 2026.
Read reviews from past customers who have flown Southwest,JetBlue, andAmerican Airlines from Ontario to Arizona. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Crew
8.6
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
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.
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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 May 22, 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 May 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$79 | Average$182 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$114 | Average$274 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$124 | Average$368 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$228 | Average$308 | FlexibilityNo cancel fee | On-time62% |