$45+ Cheap flights from Phoenix to Ontario (ONT)
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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ONT
Dec 9 — Dec 161
Round-trip
1 adult, Economy
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Find cheap flights from Phoenix to Ontario 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 Phoenix to Ontario are usually found in February or April, booked 67 days in advance, depart on a Tuesday or Saturday and return on a Wednesday
Cheap flight deals from Phoenix to Ontario
Cheapest
Best
Last-minute
One-way
Cheapest flights from Phoenix to OntarioExplore the most affordable flight options available from Phoenix to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 2026.
Explore the most affordable flight options available from Phoenix to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 2026.
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 12/212:52 pm -
1 stop6h 19m
Wed 12/98:44 am -
1 stop9h 01m
Deal found 11/4![Frontier logo]()
$90
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.
Mon 11/308:59 pm -
1 stop16h 40m
Wed 12/22:00 pm -
1 stop6h 52m
Deal found 11/5![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 11/308:59 pm -
1 stop16h 40m
Wed 12/911:00 am -
1 stop10h 12m
Deal found 11/7![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/143:11 pm -
1 stop21h 40m
Thu 12/179:00 am -
1 stop8h 14m
Deal found 11/8![Frontier logo]()
$97
This Mytrip deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 12/129:00 am -
1 stop3h 51m
Mon 12/1411:00 am -
1 stop10h 09m
Deal found 11/7![Frontier logo]()
$99
This Mytrip deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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.
Mon 12/73:11 pm -
1 stop4h 20m
Thu 12/179:00 am -
1 stop8h 14m
Deal found 11/6![Frontier logo]()
$100
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.
Tue 12/13:10 pm -
1 stop4h 01m
Fri 12/48:00 am -
1 stop13h 04m
Deal found 11/5![Frontier logo]()
$101
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 12/23:10 pm -
1 stop4h 01m
Fri 12/48:00 am -
1 stop13h 04m
Deal found 11/5![Frontier logo]()
$102
This Mytrip deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/59:00 am -
1 stop10h 31m
Mon 12/78:44 am -
1 stop12h 25m
Deal found 11/8![Frontier logo]()
$105
This Mytrip deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/1011:55 am -
1 stop12h 28m
Sat 12/128:44 am -
1 stop12h 25m
Deal found 11/9![Frontier logo]()
$107
Best flights from Phoenix to OntarioDiscover carefully curated flight deals from Phoenix to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.
Discover carefully curated flight deals from Phoenix to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/311:45 am -
Nonstop1h 25m
Thu 12/1012:50 pm -
Nonstop1h 15m
Deal found 11/5![Southwest logo]()
$117
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/412:18 pm -
Nonstop1h 20m
Sun 12/64:25 pm -
Nonstop1h 22m
Deal found 11/4![American Airlines logo]()
$211
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 12/26:00 am -
1 stop4h 38m
Thu 12/34:17 pm -
1 stop4h 42m
Deal found 11/7![United Airlines logo]()
$279
This Southwest deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 12/1710:40 pm -
Nonstop1h 20m
Sat 12/192:35 pm -
1 stop6h 05m
Deal found 11/6![Southwest logo]()
$174
This Southwest deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 12/42:55 pm -
1 stop4h 30m
Fri 12/118:35 am -
Nonstop1h 15m
Deal found 11/6![Southwest logo]()
$199
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:30 pm -
Nonstop1h 20m
Sun 12/611:30 am -
1 stop4h 05m
Deal found 11/5![Southwest logo]()
$216
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 12/26:00 am -
1 stop4h 38m
Sat 12/511:20 am -
1 stop4h 45m
Deal found 11/7![United Airlines logo]()
$279
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/169:00 am -
Nonstop1h 20m
Sun 12/208:50 am -
1 stop6h 10m
Deal found 11/5![Southwest logo]()
$216
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/227:50 am -
Nonstop1h 15m
Sat 12/266:45 pm -
Nonstop1h 15m
Deal found 11/8![Southwest logo]()
$238
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/187:50 am -
Nonstop1h 15m
Sun 12/205:10 am -
Nonstop1h 10m
Deal found 11/8![Southwest logo]()
$309
This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/59:30 am -
Nonstop1h 20m
Sun 12/64:00 pm -
1 stop4h 00m
Deal found 11/8![Southwest logo]()
$310
Last-minute flights from Phoenix to OntarioDiscover last-minute flight deals from Phoenix to Ontario. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Ontario. Data last updated November 9, 2026 and is based on user searches.
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.
Mon 11/308:59 pm -
1 stop16h 40m
Wed 12/22:00 pm -
1 stop6h 52m
Deal found 11/5![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 11/308:59 pm -
1 stop16h 40m
Wed 12/911:00 am -
1 stop10h 12m
Deal found 11/7![Frontier logo]()
$96
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.
Tue 12/13:10 pm -
1 stop4h 01m
Fri 12/48:00 am -
1 stop13h 04m
Deal found 11/5![Frontier logo]()
$101
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 12/212:52 pm -
1 stop6h 19m
Wed 12/98:44 am -
1 stop9h 01m
Deal found 11/4![Frontier logo]()
$90
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 12/23:10 pm -
1 stop4h 01m
Fri 12/48:00 am -
1 stop13h 04m
Deal found 11/5![Frontier logo]()
$102
This Mytrip deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/59:00 am -
1 stop10h 31m
Mon 12/78:44 am -
1 stop12h 25m
Deal found 11/8![Frontier logo]()
$105
This Mytrip deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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.
Mon 12/73:11 pm -
1 stop4h 20m
Thu 12/179:00 am -
1 stop8h 14m
Deal found 11/6![Frontier logo]()
$100
This Mytrip deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” 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 12/1011:55 am -
1 stop12h 28m
Sat 12/128:44 am -
1 stop12h 25m
Deal found 11/9![Frontier logo]()
$107
This Mytrip deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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 12/129:00 am -
1 stop3h 51m
Mon 12/1411:00 am -
1 stop10h 09m
Deal found 11/7![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/143:11 pm -
1 stop21h 40m
Thu 12/179:00 am -
1 stop8h 14m
Deal found 11/8![Frontier logo]()
$97
One-way flights from Phoenix to OntarioSearch for one-way flight options from Phoenix to Ontario. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
Search for one-way flight options from Phoenix to Ontario. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/59:00 am -
1 stop10h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$45
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.
Mon 11/308:59 pm -
1 stop16h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$46
This Trip.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” 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 12/129:00 am -
1 stop10h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$47
This Frontier deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 11/263:11 pm -
1 stop5h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Frontier logo]()
$48
This Kiwi.com deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” 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 12/226:31 pm -
1 stop13h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Frontier logo]()
$49
This Mytrip deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” 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.
Mon 12/218:23 am -
1 stop13h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![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.
Wed 12/99:50 am -
1 stop9h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$56
Find flight deals from Phoenix to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) to Ontario (ONT). 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 9, 2026.
Round-trip from | $90 (Mytrip) |
|---|---|
One-way from | $45 (Trip.com) |
Popular in | June |
Cheapest in | February |
Average price | $305 |
Cheapflights Fare Finder
Customize your flight search to find flights from Phoenix to Ontario 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 9, 2026.
Use the filters below to find and compare flights from Phoenix to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Sat 12/5
3:11 pm-6:31 pm
1 stop4h 20m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$45
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Fri 12/18
7:35 pm-11:45 pm
1 stop5h 10m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$69
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Thu 11/26
8:50 am-4:00 pm
2 stops8h 10m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$74
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Fri 12/25
11:45 am-12:10 pm
Nonstop1h 25m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$95
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Fri 12/25
6:26 pm-10:53 pm
1 stop5h 27m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$105
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Thu 12/3
11:45 am-12:10 pm
Nonstop1h 25m
Ontario
Thu 12/10
12:50 pm-3:05 pm
Nonstop1h 15m
$117
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Thu 12/10
2:16 pm-5:36 pm
1 stop4h 20m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$140
Quickest round-trip
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Sun 12/6
7:40 pm-7:55 pm
Nonstop1h 15m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$148
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Fri 12/4
4:39 pm-9:11 pm
1 stop5h 32m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$150
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Sun 12/13
10:45 am-3:20 pm
2 stops5h 35m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$163
Showing 1-10 of 23 resultsSorted by cheapest first
Best time to book a flight from Phoenix to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Phoenix with our price prediction graph.
PH1-ONT
PHX-ONT
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 Phoenix to Ontario
PH1-ONT
PHX-ONT
What is the cheapest month to book a flight from Phoenix to Ontario?
Currently, February is the cheapest month in which you can book a flight from Phoenix to Ontario (average of $218). Flying from Phoenix to Ontario in June is currently the most expensive (average of $330). 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 PHX to ONT?
Find hourly flight availability from Phoenix to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 9, 2026.
When flying from Phoenix to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 16% versus a flight in the evening.
Weekly flight availability from Phoenix to Ontario
Explore weekly flight availability from Phoenix to Ontario. 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 November 9, 2026.
The most flights from PH1 to ONT are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Phoenix to Ontario?
Airfare is below average for this route at the moment.
Phoenix to Ontario flights typically cost between $291 and $315 in December.The cheapest round-trip price found within the last 5 days was $90 on Frontier (Dec 2-Dec 9).
How far ahead should I book a flight from Phoenix to Ontario?
The price you pay for your flight from Phoenix to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 59 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Phoenix to Ontario?
Use this chart to determine the cheapest time to fly round-trip from Phoenix to Ontario. Price data was last updated on November 7, 2026.
Travelers seeking maximum savings on their Phoenix to Ontario flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated November 9, 2026.
Read reviews from past customers who have flown Southwest,American Airlines, andFrontier from Phoenix to Ontario. 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.
Entertainment
7.4
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.4
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.4
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.4
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Phoenix to Ontario. 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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Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 9, 2026.
Phoenix and Ontario flights
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Top 3 airlines flying from Phoenix to Ontario
Discover the top 3 airlines that operate flights from Phoenix to Ontario. 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 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$106 | Average$195 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$117 | Average$262 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$134 | Average$295 | FlexibilityNo cancel fee | On-time71% |