$45+ Cheap flights from Ontario (ONT) to Phoenix
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHX
Dec 5 — Dec 121
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Phoenix 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Ontario to Phoenix are usually found in January or April, booked 35 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday
Cheap flight deals from Ontario to Phoenix
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to PhoenixExplore the most affordable flight options available from Ontario to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
Explore the most affordable flight options available from Ontario to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 11/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/262:01 pm -
1 stop3h 48m
Tue 12/112:52 pm -
1 stop6h 19m
Deal found 11/1![Frontier logo]()
$117
This American Airlines deal was found by Cheapflights users on 11/1. 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 12/31:27 pm -
Nonstop1h 22m
Mon 12/712:18 pm -
Nonstop1h 20m
Deal found 11/1![American Airlines logo]()
$118
This Frontier deal was found by Cheapflights users on 11/3. 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 12/298:56 am -
1 stop9h 52m
Sat 1/911:35 am -
1 stop4h 13m
Deal found 11/3![Frontier logo]()
$119
This CheapOair deal was found by Cheapflights users on 11/2. 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 11/252:01 pm -
1 stop3h 48m
Mon 11/308:59 pm -
1 stop22h 12m
Deal found 11/2![Frontier logo]()
$120
This CheapOair deal was found by Cheapflights users on 11/1. 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.
Thu 12/310:23 am -
1 stop7h 29m
Mon 12/73:11 pm -
1 stop4h 20m
Deal found 11/1![Frontier logo]()
$121
This Trip.com deal was found by Cheapflights users on 11/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2310:48 pm -
1 stop22h 21m
Wed 12/308:23 am -
1 stop14h 30m
Deal found 11/1![Frontier logo]()
$122
This Mytrip deal was found by Cheapflights users on 11/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2710:55 am -
1 stop12h 38m
Mon 11/308:59 pm -
1 stop22h 12m
Deal found 11/4![Frontier logo]()
$123
This Trip.com deal was found by Cheapflights users on 11/3. 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.
Thu 12/310:23 am -
1 stop7h 29m
Sat 12/59:00 am -
1 stop3h 51m
Deal found 11/3![Frontier logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 11/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/196:15 am -
1 stop17h 15m
Mon 12/2110:54 am -
1 stop22h 07m
Deal found 11/1![Frontier logo]()
$126
This Southwest deal was found by Cheapflights users on 11/2. 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 12/241:30 pm -
1 stop3h 15m
Tue 12/298:20 pm -
Nonstop1h 20m
Deal found 11/2![Southwest logo]()
$127
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Fri 12/186:30 am -
2 stops11h 15m
Sun 12/206:25 pm -
2 stops17h 22m
Deal found 11/1![Multiple Airlines logo]()
$581
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:00 am -
2 stops10h 16m
Sun 12/66:28 pm -
2 stops30h 52m
Deal found 11/2![Multiple Airlines logo]()
$639
Best flights from Ontario to PhoenixDiscover carefully curated flight deals from Ontario to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
Discover carefully curated flight deals from Ontario to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
This Southwest deal was found by Cheapflights users on 11/2. 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 1/297:40 am -
Nonstop1h 15m
Mon 2/17:30 pm -
Nonstop1h 15m
Deal found 11/2![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 11/2. 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.
Sat 12/196:45 pm -
Nonstop1h 15m
Tue 12/228:20 pm -
Nonstop1h 20m
Deal found 11/2![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 11/1. 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 12/212:50 pm -
Nonstop1h 15m
Wed 12/99:00 am -
1 stop5h 15m
Deal found 11/1![Southwest logo]()
$127
This Southwest deal was found by Cheapflights users on 10/31. 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.
Thu 12/31:30 pm -
1 stop4h 15m
Sat 12/59:30 am -
Nonstop1h 20m
Deal found 10/31![Southwest logo]()
$127
This Southwest deal was found by Cheapflights users on 11/4. 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.
Thu 1/76:55 pm -
Nonstop1h 15m
Sun 1/107:30 pm -
Nonstop1h 15m
Deal found 11/4![Southwest logo]()
$206
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Fri 12/186:30 am -
2 stops11h 15m
Sun 12/206:25 pm -
2 stops17h 22m
Deal found 11/1![Multiple Airlines logo]()
$581
This Southwest deal was found by Cheapflights users on 11/4. 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.
Sun 12/68:35 am -
Nonstop1h 15m
Mon 12/73:50 pm -
Nonstop1h 20m
Deal found 11/4![Southwest logo]()
$206
This Southwest deal was found by Cheapflights users on 11/4. 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.
Thu 12/38:40 am -
Nonstop1h 20m
Thu 12/105:45 pm -
1 stop4h 20m
Deal found 11/4![Southwest logo]()
$207
This Southwest deal was found by Cheapflights users on 10/31. 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 11/216:45 pm -
Nonstop1h 15m
Sun 11/226:05 am -
1 stop4h 50m
Deal found 10/31![Southwest logo]()
$216
This Southwest deal was found by Cheapflights users on 10/31. 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 11/256:45 am -
Nonstop1h 20m
Sun 11/297:45 am -
Nonstop1h 15m
Deal found 10/31![Southwest logo]()
$314
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:00 am -
2 stops10h 16m
Sun 12/66:28 pm -
2 stops30h 52m
Deal found 11/2![Multiple Airlines logo]()
$639
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:52 pm -
2 stops22h 23m
Wed 12/306:15 pm -
2 stops25h 00m
Deal found 11/2![Multiple Airlines logo]()
$724
This Mytrip deal was found by Cheapflights users on 11/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2310:48 pm -
3 stops18h 27m
Sat 12/267:50 pm -
2 stops23h 25m
Deal found 11/4![Multiple Airlines logo]()
$741
This Mytrip deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2310:48 pm -
3 stops18h 27m
Sun 12/277:10 pm -
3 stops37h 51m
Deal found 11/5![Multiple Airlines logo]()
$759
This Mytrip deal was found by Cheapflights users on 11/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1711:32 am -
3 stops30h 13m
Sat 12/267:50 pm -
2 stops23h 25m
Deal found 11/4![Multiple Airlines logo]()
$783
This Mytrip deal was found by Cheapflights users on 11/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/168:44 am -
3 stops31h 36m
Sun 12/206:30 pm -
3 stops27h 12m
Deal found 11/3![Multiple Airlines logo]()
$896
This Mytrip deal was found by Cheapflights users on 11/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/179:00 am -
3 stops32h 45m
Thu 12/247:25 pm -
3 stops27h 28m
Deal found 11/4![Multiple Airlines logo]()
$905
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2310:16 am -
3 stops30h 59m
Mon 12/287:05 pm -
3 stops30h 08m
Deal found 11/2![Multiple Airlines logo]()
$986
Last-minute flights from Ontario to PhoenixDiscover last-minute flight deals from Ontario to Phoenix. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Phoenix. Data last updated November 5, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 11/2. 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 11/252:01 pm -
1 stop3h 48m
Mon 11/308:59 pm -
1 stop22h 12m
Deal found 11/2![Frontier logo]()
$120
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/262:01 pm -
1 stop3h 48m
Mon 11/308:59 pm -
1 stop22h 12m
Deal found 11/2![Frontier logo]()
$117
This Mytrip deal was found by Cheapflights users on 11/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2710:55 am -
1 stop12h 38m
Mon 11/308:59 pm -
1 stop22h 12m
Deal found 11/4![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 11/2. 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 12/32:00 pm -
1 stop3h 48m
Sat 12/59:00 am -
1 stop3h 51m
Deal found 11/2![Frontier logo]()
$118
This CheapOair deal was found by Cheapflights users on 11/1. 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.
Thu 12/310:23 am -
1 stop7h 29m
Mon 12/73:11 pm -
1 stop4h 20m
Deal found 11/1![Frontier logo]()
$121
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:00 am -
2 stops10h 16m
Sun 12/66:28 pm -
2 stops30h 52m
Deal found 11/2![Multiple Airlines logo]()
$639
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Fri 12/186:30 am -
2 stops11h 15m
Sun 12/206:25 pm -
2 stops17h 22m
Deal found 11/1![Multiple Airlines logo]()
$581
This Cheapflightsfares deal was found by Cheapflights users on 11/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/196:15 am -
1 stop17h 15m
Mon 12/2110:54 am -
1 stop22h 07m
Deal found 11/1![Frontier logo]()
$126
This Trip.com deal was found by Cheapflights users on 11/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2310:48 pm -
1 stop22h 21m
Wed 12/308:23 am -
1 stop14h 30m
Deal found 11/1![Frontier logo]()
$122
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:52 pm -
2 stops22h 23m
Wed 12/306:15 pm -
2 stops25h 00m
Deal found 11/2![Multiple Airlines logo]()
$724
This Southwest deal was found by Cheapflights users on 11/2. 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 12/241:30 pm -
1 stop3h 15m
Tue 12/298:20 pm -
Nonstop1h 20m
Deal found 11/2![Southwest logo]()
$127
This Frontier deal was found by Cheapflights users on 11/3. 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 12/298:56 am -
1 stop9h 52m
Fri 1/88:01 am -
1 stop8h 17m
Deal found 11/3![Frontier logo]()
$119
One-way flights from Ontario to PhoenixSearch for one-way flight options from Ontario to Phoenix. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
Search for one-way flight options from Ontario to Phoenix. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This Trip.com deal was found by Cheapflights users on 11/3. 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.
Wed 11/252:01 pm -
1 stop9h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$45
This Mytrip deal was found by Cheapflights users on 11/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:01 pm -
1 stop9h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$46
This Trip.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/139:22 pm -
1 stop9h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$47
This Trip.com deal was found by Cheapflights users on 11/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1910:51 pm -
1 stop12h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$48
This Kiwi.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/268:02 am -
1 stop23h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$49
This Mytrip deal was found by Cheapflights users on 11/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:40 pm -
1 stop11h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$50
This Trip.com deal was found by Cheapflights users on 11/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:35 am -
1 stop6h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$51
This Mytrip deal was found by Cheapflights users on 11/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/179:00 am -
1 stop8h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$52
This Kiwi.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1812:39 pm -
1 stop22h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$55
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2710:55 am -
1 stop12h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$56
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 11/242:01 pm -
2 stops8h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Thu 12/32:00 pm -
2 stops29h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$124
Find flight deals from Ontario to Phoenix
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Phoenix (PH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 5, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $117 (Mytrip) |
One-way from | $45 (Trip.com) |
Popular in | July |
Cheapest in | January |
Average price | $270 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Phoenix 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 7,457,451 searches. Data last updated November 5, 2026.
Use the filters below to find and compare flights from Ontario to Phoenix that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioPhoenix
ONT Ontario - PHX Phoenix Sky Harbor Intl
ONTPHX
Ontario
Sun 1/17
12:15 pm-12:41 am
1 stop11h 26m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$57
OntarioPhoenix
ONT Ontario - PHX Phoenix Sky Harbor Intl
ONTPHX
Ontario
Fri 1/15
5:05 am-7:25 am
Nonstop1h 20m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$59
Quickest round-trip
OntarioPhoenix
ONT Ontario - PHX Phoenix Sky Harbor Intl
ONTPHX
Ontario
Sat 12/19
6:45 pm-9:00 pm
Nonstop1h 15m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$59
OntarioPhoenix
ONT Ontario - PHX Phoenix Sky Harbor Intl
ONTPHX
Ontario
Wed 11/25
8:15 am-6:49 pm
1 stop9h 34m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$65
OntarioPhoenix
ONT Ontario - PHX Phoenix Sky Harbor Intl
ONTPHX
Ontario
Sun 12/13
7:26 pm-5:26 pm
1 stop21h 00m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$78
OntarioPhoenix
ONT Ontario - PHX Phoenix Sky Harbor Intl
ONTPHX
Ontario
Fri 1/15
11:42 am-3:10 pm
2 stops26h 28m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$92
OntarioPhoenix
ONT Ontario - PHX Phoenix Sky Harbor Intl
ONTPHX
Ontario
Fri 1/29
7:40 am-9:55 am
Nonstop1h 15m
Phoenix Sky Harbor Intl
Mon 2/1
7:30 pm-7:45 pm
Nonstop1h 15m
$117
OntarioPhoenix
ONT Ontario - PHX Phoenix Sky Harbor Intl
ONTPHX
Ontario
Sat 12/19
6:45 pm-9:00 pm
Nonstop1h 15m
Phoenix Sky Harbor Intl
Tue 12/22
8:20 pm-8:40 pm
Nonstop1h 20m
$117
OntarioPhoenix
ONT Ontario - PHX Phoenix Sky Harbor Intl
ONTPHX
Ontario
Mon 12/7
8:44 am-5:26 pm
2 stops7h 42m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$126
OntarioPhoenix
ONT Ontario - PHX Phoenix Sky Harbor Intl
ONTPHX
Ontario
Wed 12/2
12:50 pm-3:05 pm
Nonstop1h 15m
Phoenix Sky Harbor Intl
Wed 12/9
9:00 am-1:15 pm
1 stop5h 15m
$127
Showing 1-10 of 36 resultsSorted by cheapest first
Best time to book a flight from Ontario to Phoenix
Have a flexible travel schedule? Discover the best time to fly to Phoenix from Ontario with our price prediction graph.
ONT-PH1
ONT-PHX
ONT-AZA
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 Phoenix
ONT-PH1
ONT-PHX
ONT-AZA
What is the cheapest month to book a flight from Ontario to Phoenix?
Currently, January is the cheapest month in which you can book a flight from Ontario to Phoenix (average of $245). Flying from Ontario to Phoenix in July is currently the most expensive (average of $446). 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 PHX?
Find hourly flight availability from Ontario to Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 5, 2026.
It’s optimal to fly from Ontario to Phoenix in the afternoon. By choosing this option you can save up to 13% on the cost of your flight, compared to a flight in the evening.
How much does it cost to fly round-trip from Ontario to Phoenix?
Airfare is below average for this route at the moment.
Ontario to Phoenix flights typically cost between $203 and $443 in November.The cheapest round-trip price found within the last 5 days was $117 on Frontier (Nov 26-Nov 30).
How far ahead should I book a flight from Ontario to Phoenix?
The best time to book flights from Ontario to Phoenix is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Ontario to Phoenix?
Use this chart to determine the cheapest time to fly round-trip from Ontario to Phoenix. Price data was last updated on October 31, 2026.
Travelers seeking maximum savings on their Ontario to Phoenix 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 Phoenix
Get insights into the airlines that provide service to Phoenix. 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 Phoenix. Reviews last updated November 5, 2026.
Read reviews from past customers who have flown Southwest,JetBlue, andAmerican Airlines from Ontario to Phoenix. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Ontario to Phoenix. 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 Phoenix
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Phoenix by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Phoenix by cabin class
Find flights from Ontario to Phoenix, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Phoenix flights
Browse other Ontario and Phoenix flight options. Last updated on November 5, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on November 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Ontario to Phoenix
Discover the top 4 airlines that operate flights from Ontario to Phoenix. 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 7,457,451 searches. Data last updated November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$72 | Average$197 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$117 | Average$272 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$145 | Average$308 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$228 | Average$308 | FlexibilityNo cancel fee | On-time62% |