$34+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHX
Jul 5 — Jul 121
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 June 5, 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 June 5, 2026.
This Frontier deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:16 am
ONT
- LAS
Nonstop1h 11m
Frontier
Wed 10/73:00 pm
LAS
- ONT
Nonstop1h 10m
Frontier
Deal found 5/31![Frontier logo]()
$72
This Frontier deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/52:58 pm
ONT
- LAS
Nonstop1h 10m
Frontier
Tue 10/133:00 pm
LAS
- ONT
Nonstop1h 10m
Frontier
Deal found 6/1![Frontier logo]()
$73
This CheapOair deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:38 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Thu 8/62:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 6/3![Frontier logo]()
$74
This Frontier deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:38 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Sat 8/12:05 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 6/3![Frontier logo]()
$75
This Frontier deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:38 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Mon 8/172:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 6/4![Frontier logo]()
$76
This Frontier deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/291:38 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Sat 8/17:00 am
LAS
- ONT
Nonstop1h 03m
Frontier
Deal found 6/4![Frontier logo]()
$77
This Frontier deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/263:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Sun 8/306:40 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 6/1![Frontier logo]()
$78
This Super.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:43 am
ONT
- LAS
Nonstop1h 08m
Frontier
Wed 8/266:40 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 5/31![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:12 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Sat 9/127:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 6/2![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/303:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Fri 7/31:55 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 6/4![Frontier logo]()
$82
This Trip.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:49 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Sun 9/2012:18 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 6/2![Frontier logo]()
$83
This Frontier deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Sat 9/123:00 pm
LAS
- ONT
Nonstop1h 10m
Frontier
Deal found 6/3![Frontier logo]()
$84
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 June 5, 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 June 5, 2026.
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:35 pm
ONT
- PHX
Nonstop1h 20m
Southwest
Tue 8/259:00 am
PHX
- ONT
Nonstop1h 25m
Southwest
Deal found 6/2![Southwest logo]()
$137
This United Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:13 pm
ONT
- LAS
1 stop5h 15m
United Airlines
Wed 8/268:00 am
LAS
- ONT
1 stop4h 12m
United Airlines
Deal found 5/31![United Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:20 pm
ONT
- PHX
Nonstop1h 20m
Southwest
Tue 7/218:00 am
PHX
- ONT
Nonstop1h 15m
Southwest
Deal found 6/4![Southwest logo]()
$137
This Southwest deal was found by Cheapflights users on 5/30. 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 6/238:25 pm
ONT
- LAS
Nonstop1h 05m
Southwest
Tue 6/3012:45 pm
LAS
- ONT
2 stops5h 50m
Southwest
Deal found 5/30![Southwest logo]()
$172
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:11 am
ONT
- FLG
1 stop3h 36m
American Airlines
Sun 7/266:27 pm
FLG
- ONT
1 stop3h 16m
American Airlines
Deal found 6/4![American Airlines logo]()
$444
This Southwest deal was found by Cheapflights users on 5/30. 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.
Thu 8/64:50 pm
ONT
- PHX
Nonstop1h 20m
Southwest
Sat 8/157:20 am
PHX
- ONT
2 stops6h 55m
Southwest
Deal found 5/30![Southwest logo]()
$196
This Southwest deal was found by Cheapflights users on 5/30. 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.
Sat 8/295:50 am
ONT
- LAS
2 stops6h 20m
Southwest
Mon 8/312:15 pm
LAS
- ONT
Nonstop1h 00m
Southwest
Deal found 5/30![Southwest logo]()
$196
This United Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:00 am
ONT
- PHX
1 stop4h 10m
United Airlines
Wed 7/297:24 am
PHX
- ONT
1 stop4h 48m
United Airlines
Deal found 5/31![United Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:10 pm
ONT
- LAS
Nonstop1h 10m
Southwest
Fri 7/104:45 pm
LAS
- ONT
2 stops4h 50m
Southwest
Deal found 5/31![Southwest logo]()
$228
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:10 am
ONT
- LAS
2 stops5h 15m
Southwest
Sun 8/98:00 am
LAS
- ONT
1 stop3h 35m
Southwest
Deal found 6/3![Southwest logo]()
$250
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/284:10 pm
ONT
- PHX
1 stop4h 00m
Southwest
Mon 8/3112:15 pm
PHX
- ONT
Nonstop1h 10m
Southwest
Deal found 6/3![Southwest logo]()
$270
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:11 am
ONT
- FLG
1 stop4h 57m
American Airlines
Tue 8/117:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 6/1![American Airlines logo]()
$484
This Southwest deal was found by Cheapflights users on 5/30. 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.
Fri 8/72:40 pm
ONT
- PHX
Nonstop1h 20m
Southwest
Sun 8/98:15 am
PHX
- ONT
1 stop3h 30m
Southwest
Deal found 5/30![Southwest logo]()
$278
This American Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:11 am
ONT
- FLG
1 stop3h 36m
American Airlines
Sun 7/126:27 pm
FLG
- ONT
1 stop3h 16m
American Airlines
Deal found 5/31![American Airlines logo]()
$514
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/208:05 am
ONT
- LAS
2 stops7h 20m
Southwest
Tue 6/237:40 pm
LAS
- ONT
1 stop3h 20m
Southwest
Deal found 6/1![Southwest logo]()
$278
This American Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/276:10 am
ONT
- FLG
1 stop3h 45m
American Airlines
Sun 6/286:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 6/3![American Airlines logo]()
$526
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/168:45 pm
ONT
- LAS
1 stop3h 10m
Southwest
Mon 7/207:35 pm
LAS
- ONT
1 stop4h 35m
Southwest
Deal found 6/3![Southwest logo]()
$289
This American Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:11 am
ONT
- FLG
1 stop3h 36m
American Airlines
Mon 7/61:50 pm
FLG
- ONT
1 stop4h 28m
American Airlines
Deal found 6/2![American Airlines logo]()
$545
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:00 am
ONT
- LAS
1 stop4h 15m
Southwest
Sun 7/55:35 am
LAS
- ONT
1 stop5h 45m
Southwest
Deal found 6/1![Southwest logo]()
$289
This American Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/176:10 am
ONT
- FLG
1 stop5h 03m
American Airlines
Sun 6/216:27 pm
FLG
- ONT
1 stop3h 30m
American Airlines
Deal found 6/2![American Airlines logo]()
$549
This Southwest deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/111:25 pm
ONT
- LAS
2 stops7h 25m
Southwest
Wed 7/155:10 pm
LAS
- ONT
2 stops5h 05m
Southwest
Deal found 5/31![Southwest logo]()
$290
This American Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:10 am
ONT
- FLG
1 stop5h 03m
American Airlines
Sun 7/126:27 pm
FLG
- ONT
1 stop3h 16m
American Airlines
Deal found 5/31![American Airlines logo]()
$568
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/11:25 pm
ONT
- LAS
2 stops7h 25m
Southwest
Sun 8/25:05 am
LAS
- ONT
1 stop4h 00m
Southwest
Deal found 6/4![Southwest logo]()
$294
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:15 am
ONT
- FLG
1 stop4h 56m
American Airlines
Wed 8/127:00 am
FLG
- ONT
1 stop5h 03m
American Airlines
Deal found 6/1![American Airlines logo]()
$568
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:10 am
ONT
- LAS
2 stops5h 15m
Southwest
Sun 8/307:00 am
LAS
- ONT
1 stop3h 40m
Southwest
Deal found 6/2![Southwest logo]()
$294
This American Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:10 am
ONT
- FLG
1 stop3h 45m
American Airlines
Mon 7/131:50 pm
FLG
- ONT
1 stop4h 28m
American Airlines
Deal found 5/31![American Airlines logo]()
$576
This American Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:10 am
ONT
- FLG
1 stop3h 45m
American Airlines
Thu 7/161:50 pm
FLG
- ONT
1 stop4h 28m
American Airlines
Deal found 5/31![American Airlines logo]()
$576
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:20 pm
ONT
- TUS
1 stop3h 25m
Southwest
Tue 7/75:15 am
TUS
- ONT
2 stops7h 10m
Southwest
Deal found 6/2![Southwest logo]()
$330
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:11 am
ONT
- FLG
1 stop4h 57m
American Airlines
Sun 8/910:30 am
FLG
- ONT
1 stop4h 49m
American Airlines
Deal found 6/1![American Airlines logo]()
$577
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:30 pm
ONT
- PHX
Nonstop1h 20m
Southwest
Sun 7/128:30 pm
PHX
- ONT
Nonstop1h 10m
Southwest
Deal found 6/3![Southwest logo]()
$335
Last-minute flights from Ontario to ArizonaDiscover last-minute flight deals from Ontario to Arizona. Data last updated June 5, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Arizona. Data last updated June 5, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2011:58 am
ONT
- LAS
Nonstop1h 08m
Frontier
Wed 6/241:55 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 6/2![Frontier logo]()
$115
This Super.com deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/241:33 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Sun 6/286:43 pm
LAS
- ONT
Nonstop1h 08m
Frontier
Deal found 6/3![Frontier logo]()
$114
This Super.com deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2711:58 am
ONT
- LAS
Nonstop1h 08m
Frontier
Wed 7/11:55 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 6/3![Frontier logo]()
$113
This Super.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/303:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Fri 7/31:55 pm
LAS
- ONT
Nonstop1h 13m
Frontier
Deal found 6/4![Frontier logo]()
$82
This CheapOair deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair 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
Wed 7/87:00 am
LAS
- ONT
Nonstop1h 03m
Frontier
Deal found 6/2![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/143:40 pm
ONT
- PHX
1 stop7h 25m
Frontier
Tue 7/219:58 pm
PHX
- ONT
1 stop10h 05m
Frontier
Deal found 6/4![Frontier logo]()
$124
This CheapOair deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/153:40 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Tue 7/217:00 am
LAS
- ONT
Nonstop1h 03m
Frontier
Deal found 6/4![Frontier logo]()
$80
This Frontier deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:38 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Sat 8/12:05 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 6/3![Frontier logo]()
$75
This Booking.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:38 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Sun 8/27:00 am
LAS
- ONT
Nonstop1h 03m
Frontier
Deal found 6/4![Frontier logo]()
$111
This Frontier deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/293:40 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Fri 7/312:45 pm
LAS
- ONT
Nonstop1h 09m
Frontier
Deal found 6/4![Frontier logo]()
$77
This Super.com deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3011:52 am
ONT
- LAS
Nonstop1h 10m
Frontier
Sun 8/27:00 am
LAS
- ONT
Nonstop1h 03m
Frontier
Deal found 6/3![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3111:52 am
ONT
- LAS
Nonstop1h 10m
Frontier
Sun 8/27:00 am
LAS
- ONT
Nonstop1h 03m
Frontier
Deal found 6/4![Frontier logo]()
$90
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 June 5, 2026.
Search for one-way flight options from Ontario to Arizona. Find affordable one-way fares based on user searches. Data last updated June 5, 2026.
This Flightnetwork deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/241:33 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Deal found 6/4![Frontier logo]()
$34
This Trip.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/293:40 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Deal found 6/4![Frontier logo]()
$35
This CheapOair deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:38 pm
ONT
- LAS
Nonstop1h 11m
Frontier
Deal found 6/1![Frontier logo]()
$38
This Frontier deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/64:34 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Deal found 6/4![Frontier logo]()
$43
This CheapOair deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/111:52 am
ONT
- LAS
Nonstop1h 10m
Frontier
Deal found 6/3![Frontier logo]()
$44
This Frontier deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:34 pm
ONT
- LAS
Nonstop1h 09m
Frontier
Deal found 6/4![Frontier logo]()
$45
This CheapOair deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/313:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Deal found 5/31![Frontier logo]()
$46
This Frontier deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/223:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Deal found 5/31![Frontier logo]()
$47
This Super.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:34 pm
ONT
- LAS
Nonstop1h 12m
Frontier
Deal found 6/4![Frontier logo]()
$49
This Kiwi.com deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:38 pm
ONT
- PHX
1 stop9h 27m
Frontier
Deal found 6/3![Frontier logo]()
$60
This Trip.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:34 pm
ONT
- PHX
1 stop7h 26m
Frontier
Deal found 6/2![Frontier logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/21:27 pm
ONT
- PHX
1 stop9h 58m
Frontier
Deal found 6/3![Frontier logo]()
$62
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 June 5, 2026.
Round-trip from | $72 (Frontier) |
|---|---|
One-way from | $34 (Flightnetwork) |
Popular in | March |
Cheapest in | December |
Average price | $197 |
Good round-trip deal | $379 or less |
Good one-way deal | $191 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 June 5, 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
Tue 8/18
3:35 pm-4:55 pm
Nonstop1h 20m
Phoenix Sky Harbor Intl
Tue 8/25
9:00 am-10:25 am
Nonstop1h 25m
$137
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Tue 7/14
7:20 pm-8:40 pm
Nonstop1h 20m
Phoenix Sky Harbor Intl
Tue 7/21
8:00 am-9:15 am
Nonstop1h 15m
$137
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Tue 6/23
8:25 pm-9:30 pm
Nonstop1h 05m
Las Vegas Harry Reid Intl
Tue 6/30
12:45 pm-6:35 pm
2 stops5h 50m
$172
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Thu 8/6
4:50 pm-6:10 pm
Nonstop1h 20m
Phoenix Sky Harbor Intl
Sat 8/15
7:20 am-2:15 pm
2 stops6h 55m
$196
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Sat 8/29
5:50 am-12:10 pm
2 stops6h 20m
Las Vegas Harry Reid Intl
Mon 8/31
2:15 pm-3:15 pm
Nonstop1h 00m
$196
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Wed 7/8
4:10 pm-5:20 pm
Nonstop1h 10m
Las Vegas Harry Reid Intl
Fri 7/10
4:45 pm-9:35 pm
2 stops4h 50m
$228
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Thu 8/6
6:10 am-11:25 am
2 stops5h 15m
Las Vegas Harry Reid Intl
Sun 8/9
8:00 am-11:35 am
1 stop3h 35m
$250
OntarioLas Vegas
ONT - LAS
ONTLAS
Ontario
Mon 8/24
7:13 pm-12:28 am
1 stop5h 15m
Las Vegas Harry Reid Intl
Wed 8/26
8:00 am-12:12 pm
1 stop4h 12m
$259
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Fri 8/28
4:10 pm-8:10 pm
1 stop4h 00m
Phoenix Sky Harbor Intl
Mon 8/31
12:15 pm-1:25 pm
Nonstop1h 10m
$270
OntarioPhoenix
ONT - PHX
ONTPHX
Ontario
Fri 8/7
2:40 pm-4:00 pm
Nonstop1h 20m
Phoenix Sky Harbor Intl
Sun 8/9
8:15 am-11:45 am
1 stop3h 30m
$278
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-LAS
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-PHX
ONT-LAS
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 June 5, 2026.
It’s optimal to fly from Ontario to Arizona at noon. By choosing this option you can save up to 19% 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 June 5, 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 (3 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 30, 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 June 5, 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.
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
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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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 June 5, 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 June 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$78 | Average$178 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$114 | Average$273 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$124 | Average$370 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$228 | Average$308 | FlexibilityNo cancel fee | On-time62% |