$29+ 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHX
May 4 — May 111
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 April 4, 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 April 4, 2026.
This Frontier deal was found by Cheapflights users on 4/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/74:04 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Fri 5/86:45 am
LAS
- ONT
Nonstop1h 04m
Frontier
Deal found 4/2![Frontier logo]()
$66
This Mytrip deal was found by Cheapflights users on 4/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:44 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Mon 5/47:00 am
LAS
- ONT
Nonstop1h 04m
Frontier
Deal found 4/1![Frontier logo]()
$67
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/134:39 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Sat 5/166:22 pm
LAS
- ONT
Nonstop1h 10m
Frontier
Deal found 3/31![Frontier logo]()
$68
This Frontier deal was found by Cheapflights users on 4/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Sun 6/146:40 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 4/1![Frontier logo]()
$69
This Super.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/2011:44 am
ONT
- LAS
Nonstop1h 15m
Frontier
Sat 4/255:41 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 3/30![Frontier logo]()
$71
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Mon 4/277:20 am
LAS
- ONT
Nonstop1h 04m
Frontier
Deal found 3/31![Frontier logo]()
$72
This Frontier deal was found by Cheapflights users on 4/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:44 am
ONT
- LAS
Nonstop1h 15m
Frontier
Mon 5/116:45 am
LAS
- ONT
Nonstop1h 04m
Frontier
Deal found 4/1![Frontier logo]()
$73
This Super.com deal was found by Cheapflights users on 3/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:44 am
ONT
- LAS
Nonstop1h 15m
Frontier
Mon 5/46:59 pm
LAS
- ONT
Nonstop1h 05m
Frontier
Deal found 3/31![Frontier logo]()
$74
This CheapOair deal was found by Cheapflights users on 4/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:20 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Sat 5/25:41 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 4/3![Frontier logo]()
$75
This Trip.com deal was found by Cheapflights users on 4/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:20 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Fri 5/86:45 am
LAS
- ONT
Nonstop1h 04m
Frontier
Deal found 4/2![Frontier logo]()
$76
This Super.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/238:59 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Fri 4/247:59 pm
LAS
- ONT
Nonstop1h 05m
Frontier
Deal found 3/30![Frontier logo]()
$77
This Frontier deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:44 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Wed 4/299:30 am
LAS
- ONT
Nonstop1h 14m
Frontier
Deal found 3/29![Frontier logo]()
$78
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 April 4, 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 April 4, 2026.
This Expedia deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:59 am
ONT
- PHX
1 stop6h 37m
Frontier
Sun 5/37:20 pm
PHX
- ONT
1 stop12h 44m
Frontier
Deal found 3/29![Frontier logo]()
$146
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2010:40 am
ONT
- LAS
1 stop5h 25m
Southwest
Sat 5/235:40 am
LAS
- ONT
1 stop5h 25m
Southwest
Deal found 4/1![Southwest logo]()
$167
This American Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:35 pm
ONT
- PHX
Nonstop1h 21m
American Airlines
Sun 5/35:07 pm
PHX
- ONT
Nonstop1h 23m
American Airlines
Deal found 3/29![American Airlines logo]()
$258
This Delta deal was found by Cheapflights users on 4/1. 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.
Tue 4/286:00 am
ONT
- TUS
1 stop4h 24m
Delta
Tue 5/57:10 am
TUS
- ONT
1 stop5h 04m
Delta
Deal found 4/1![Delta logo]()
$295
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 4/296:49 pm
ONT
- PHX
1 stop5h 10m
United Airlines
Sat 5/26:00 am
PHX
- ONT
2 stops11h 52m
United Airlines
Deal found 3/31![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 5/263:45 pm
ONT
- LAS
1 stop4h 45m
Southwest
Thu 5/285:55 am
LAS
- ONT
1 stop5h 00m
Southwest
Deal found 3/30![Southwest logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:59 pm
ONT
- TUS
1 stop15h 48m
Alaska Airlines
Mon 5/47:50 am
TUS
- ONT
1 stop16h 09m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$373
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:50 pm
ONT
- LAS
1 stop5h 05m
Southwest
Fri 5/297:35 am
LAS
- ONT
1 stop3h 20m
Southwest
Deal found 4/1![Southwest logo]()
$182
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/275:15 am
ONT
- PHX
Nonstop1h 15m
Southwest
Mon 5/48:05 am
PHX
- ONT
1 stop4h 50m
Southwest
Deal found 3/30![Southwest logo]()
$187
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 5/134:30 pm
ONT
- LAS
Nonstop1h 05m
Southwest
Fri 5/157:15 am
LAS
- ONT
Nonstop1h 05m
Southwest
Deal found 3/30![Southwest logo]()
$192
This Southwest deal was found by Cheapflights users on 4/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:10 am
ONT
- LAS
2 stops5h 15m
Southwest
Tue 8/2511:35 am
LAS
- ONT
Nonstop1h 05m
Southwest
Deal found 4/2![Southwest logo]()
$199
This Delta deal was found by Cheapflights users on 4/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:00 am
ONT
- TUS
1 stop4h 24m
Delta
Tue 5/1211:04 am
TUS
- ONT
1 stop5h 13m
Delta
Deal found 4/3![Delta logo]()
$295
This Delta deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 5/114:57 pm
ONT
- TUS
1 stop4h 33m
Delta
Tue 5/1211:04 am
TUS
- ONT
1 stop5h 13m
Delta
Deal found 3/30![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 3/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/214:30 pm
ONT
- LAS
Nonstop1h 05m
Southwest
Fri 4/2410:15 am
LAS
- ONT
Nonstop1h 05m
Southwest
Deal found 3/31![Southwest logo]()
$223
This United Airlines deal was found by Cheapflights users on 4/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/25:00 am
ONT
- TUS
1 stop7h 37m
United Airlines
Tue 5/51:39 pm
TUS
- ONT
1 stop6h 57m
United Airlines
Deal found 4/2![United Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 4/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:05 pm
ONT
- PHX
Nonstop1h 15m
Southwest
Wed 5/65:45 pm
PHX
- ONT
Nonstop1h 10m
Southwest
Deal found 4/2![Southwest logo]()
$228
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:19 pm
ONT
- FLG
1 stop4h 12m
American Airlines
Sun 5/35:01 pm
FLG
- ONT
1 stop4h 58m
American Airlines
Deal found 3/31![American Airlines logo]()
$431
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:40 pm
ONT
- PHX
1 stop6h 00m
Southwest
Wed 7/84:35 pm
PHX
- ONT
2 stops5h 30m
Southwest
Deal found 4/1![Southwest logo]()
$233
This American Airlines deal was found by Cheapflights users on 4/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1212:19 pm
ONT
- FLG
1 stop4h 12m
American Airlines
Sun 5/175:01 pm
FLG
- ONT
1 stop4h 58m
American Airlines
Deal found 4/3![American Airlines logo]()
$456
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/112:40 pm
ONT
- PHX
1 stop7h 05m
Southwest
Fri 9/117:05 am
PHX
- ONT
1 stop4h 20m
Southwest
Deal found 4/1![Southwest logo]()
$248
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:35 pm
ONT
- FLG
1 stop3h 22m
American Airlines
Mon 5/115:01 pm
FLG
- ONT
1 stop4h 58m
American Airlines
Deal found 3/31![American Airlines logo]()
$461
This Southwest deal was found by Cheapflights users on 4/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:25 pm
ONT
- LAS
1 stop3h 45m
Southwest
Wed 7/2912:45 pm
LAS
- ONT
2 stops5h 50m
Southwest
Deal found 4/2![Southwest logo]()
$254
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/177:35 pm
ONT
- FLG
1 stop3h 22m
American Airlines
Mon 4/205:01 pm
FLG
- ONT
1 stop4h 58m
American Airlines
Deal found 3/30![American Airlines logo]()
$476
This Southwest deal was found by Cheapflights users on 3/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/175:15 am
ONT
- LAS
1 stop3h 50m
Southwest
Mon 5/187:20 am
LAS
- ONT
1 stop3h 35m
Southwest
Deal found 3/31![Southwest logo]()
$258
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:19 pm
ONT
- FLG
1 stop4h 12m
American Airlines
Wed 5/1311:41 am
FLG
- ONT
1 stop4h 41m
American Airlines
Deal found 3/31![American Airlines logo]()
$491
This Southwest deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 6/13:55 pm
ONT
- PHX
2 stops5h 20m
Southwest
Tue 6/304:15 pm
PHX
- ONT
1 stop5h 35m
Southwest
Deal found 3/30![Southwest logo]()
$263
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:35 pm
ONT
- FLG
1 stop3h 22m
American Airlines
Wed 5/1311:41 am
FLG
- ONT
1 stop4h 41m
American Airlines
Deal found 3/31![American Airlines logo]()
$506
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:40 am
ONT
- LAS
Nonstop1h 05m
Southwest
Sun 9/275:00 am
LAS
- ONT
1 stop5h 00m
Southwest
Deal found 4/1![Southwest logo]()
$271
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/156:15 am
ONT
- FLG
1 stop4h 56m
American Airlines
Sat 4/186:21 am
FLG
- ONT
1 stop5h 13m
American Airlines
Deal found 3/30![American Airlines logo]()
$506
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/61:15 pm
ONT
- LAS
1 stop5h 05m
Southwest
Sun 8/95:00 am
LAS
- ONT
1 stop5h 00m
Southwest
Deal found 4/1![Southwest logo]()
$271
Last-minute flights from Ontario to ArizonaDiscover last-minute flight deals from Ontario to Arizona. Data last updated April 4, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Arizona. Data last updated April 4, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/2011:44 am
ONT
- LAS
Nonstop1h 15m
Frontier
Sat 4/255:41 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 3/30![Frontier logo]()
$71
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Mon 4/277:20 am
LAS
- ONT
Nonstop1h 04m
Frontier
Deal found 3/31![Frontier logo]()
$72
This Super.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/238:59 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Fri 4/247:59 pm
LAS
- ONT
Nonstop1h 05m
Frontier
Deal found 3/30![Frontier logo]()
$77
This Frontier deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:44 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Wed 4/299:30 am
LAS
- ONT
Nonstop1h 14m
Frontier
Deal found 3/29![Frontier logo]()
$78
This Super.com deal was found by Cheapflights users on 3/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:44 am
ONT
- LAS
Nonstop1h 15m
Frontier
Mon 5/46:59 pm
LAS
- ONT
Nonstop1h 05m
Frontier
Deal found 3/31![Frontier logo]()
$74
This CheapOair deal was found by Cheapflights users on 4/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:20 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Sat 5/25:41 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 4/3![Frontier logo]()
$75
This Trip.com deal was found by Cheapflights users on 4/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:20 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Fri 5/86:45 am
LAS
- ONT
Nonstop1h 04m
Frontier
Deal found 4/2![Frontier logo]()
$76
This Mytrip deal was found by Cheapflights users on 4/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:44 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Mon 5/47:00 am
LAS
- ONT
Nonstop1h 04m
Frontier
Deal found 4/1![Frontier logo]()
$67
This Super.com deal was found by Cheapflights users on 3/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/38:19 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Mon 5/46:59 pm
LAS
- ONT
Nonstop1h 05m
Frontier
Deal found 3/31![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 4/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/74:04 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Fri 5/86:45 am
LAS
- ONT
Nonstop1h 04m
Frontier
Deal found 4/2![Frontier logo]()
$66
This CheapOair deal was found by Cheapflights users on 4/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:44 am
ONT
- LAS
Nonstop1h 15m
Frontier
Mon 5/116:45 am
LAS
- ONT
Nonstop1h 04m
Frontier
Deal found 4/1![Frontier logo]()
$73
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/134:39 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Sat 5/166:22 pm
LAS
- ONT
Nonstop1h 10m
Frontier
Deal found 3/31![Frontier logo]()
$68
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 April 4, 2026.
Search for one-way flight options from Ontario to Arizona. Find affordable one-way fares based on user searches. Data last updated April 4, 2026.
This Trip.com deal was found by Cheapflights users on 4/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/63:30 pm
ONT
- LAS
Nonstop1h 13m
Frontier
Deal found 4/3![Frontier logo]()
$29
This Frontier deal was found by Cheapflights users on 4/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:39 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Deal found 4/2![Frontier logo]()
$30
This Kiwi.com deal was found by Cheapflights users on 4/2. 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 4/257:44 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Deal found 4/2![Frontier logo]()
$32
This Frontier deal was found by Cheapflights users on 4/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:44 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Deal found 4/1![Frontier logo]()
$33
This Booking.com deal was found by Cheapflights users on 4/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/303:30 pm
ONT
- LAS
Nonstop1h 13m
Frontier
Deal found 4/2![Frontier logo]()
$34
This Frontier deal was found by Cheapflights users on 4/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/23:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Deal found 4/2![Frontier logo]()
$38
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Fri 5/18:20 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Deal found 4/3![Frontier logo]()
$39
This Super.com deal was found by Cheapflights users on 3/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:39 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Deal found 3/31![Frontier logo]()
$40
This Flightnetwork deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/201:50 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Deal found 3/30![Frontier logo]()
$41
This Super.com deal was found by Cheapflights users on 3/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:59 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Deal found 3/31![Frontier logo]()
$44
This WAYA deal was found by Cheapflights users on 4/3. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:44 am
ONT
- PHX
1 stop6h 13m
Frontier
Deal found 4/3![Frontier logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:39 pm
ONT
- PHX
1 stop6h 45m
Frontier
Deal found 3/31![Frontier logo]()
$58
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 April 4, 2026.
Round-trip from | $66 (Frontier) |
|---|---|
One-way from | $29 (Trip.com) |
Popular in | March |
Cheapest in | December |
Average price | $165 |
Good round-trip deal | $349 or less |
Good one-way deal | $207 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 April 4, 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 4/29
12:59 am-7:36 am
1 stop6h 37m
Phoenix Sky Harbor Intl
Sun 5/3
7:20 pm-8:04 am
1 stop12h 44m
$146
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Wed 5/20
10:40 am-4:05 pm
1 stop5h 25m
Las Vegas Harry Reid Intl
Sat 5/23
5:40 am-11:05 am
1 stop5h 25m
$167
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Tue 5/26
3:45 pm-8:30 pm
1 stop4h 45m
Las Vegas Harry Reid Intl
Thu 5/28
5:55 am-10:55 am
1 stop5h 00m
$167
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Tue 5/26
5:50 pm-10:55 pm
1 stop5h 05m
Las Vegas Harry Reid Intl
Fri 5/29
7:35 am-10:55 am
1 stop3h 20m
$182
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Mon 4/27
5:15 am-6:30 am
Nonstop1h 15m
Phoenix Sky Harbor Intl
Mon 5/4
8:05 am-12:55 pm
1 stop4h 50m
$187
Quickest round-trip
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Wed 5/13
4:30 pm-5:35 pm
Nonstop1h 05m
Las Vegas Harry Reid Intl
Fri 5/15
7:15 am-8:20 am
Nonstop1h 05m
$192
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Thu 8/13
6:10 am-11:25 am
2 stops5h 15m
Las Vegas Harry Reid Intl
Tue 8/25
11:35 am-12:40 pm
Nonstop1h 05m
$199
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Tue 4/21
4:30 pm-5:35 pm
Nonstop1h 05m
Las Vegas Harry Reid Intl
Fri 4/24
10:15 am-11:20 am
Nonstop1h 05m
$223
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Fri 5/1
6:05 pm-7:20 pm
Nonstop1h 15m
Phoenix Sky Harbor Intl
Wed 5/6
5:45 pm-6:55 pm
Nonstop1h 10m
$228
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Wed 7/1
3:40 pm-9:40 pm
1 stop6h 00m
Phoenix Sky Harbor Intl
Wed 7/8
4:35 pm-10:05 pm
2 stops5h 30m
$233
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-PHX
ONT-TUS
ONT-LAS
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-PHX
ONT-TUS
ONT-LAS
ONT-FLG
What is the cheapest month to book a flight from Ontario to Arizona?
Currently, November is the cheapest month in which you can book a flight from Ontario to Arizona (average of $39). Flying from Ontario to Arizona in July is currently the most expensive (average of $83). 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 April 4, 2026.
It’s optimal to fly from Ontario to Arizona at noon. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the evening.
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 March 28, 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.
How much does it cost to fly round-trip from Ontario to Arizona?
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 April 4, 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.
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
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.
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 April 4, 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 April 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$79 | Average$183 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$97 | Average$339 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$124 | Average$375 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$228 | Average$308 | FlexibilityNo cancel fee | On-time62% |