$59+ Cheap flights from Phoenix to Ontario (ONT)
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 11/26. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ONT
Sep 5 — Sep 121
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 September or October, booked 62 days in advance, depart on a Saturday or Tuesday 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 August 6, 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 August 6, 2026.
This Southwest deal was found by Cheapflights users on 8/4. 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 9/510:00 am -
Nonstop1h 15m
Sun 9/67:05 am -
Nonstop1h 20m
Deal found 8/4![Southwest logo]()
$117
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/510:45 am -
Nonstop1h 18m
Sun 9/68:01 pm -
Nonstop1h 19m
Deal found 8/3![American Airlines logo]()
$118
This Southwest deal was found by Cheapflights users on 8/3. 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 9/510:00 am -
Nonstop1h 15m
Mon 9/78:40 pm -
Nonstop1h 20m
Deal found 8/3![Southwest logo]()
$134
This Super.com deal was found by Cheapflights users on 8/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:48 pm -
1 stop7h 02m
Wed 9/92:30 pm -
1 stop4h 33m
Deal found 8/5![Frontier logo]()
$141
This Frontier deal was found by Cheapflights users on 8/1. 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 9/211:32 pm -
1 stop6h 04m
Tue 9/2211:45 am -
1 stop8h 06m
Deal found 8/1![Frontier logo]()
$142
This Frontier deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:30 am -
1 stop12h 09m
Wed 9/2311:45 am -
1 stop11h 58m
Deal found 8/1![Frontier logo]()
$145
This FlightHub deal was found by Cheapflights users on 8/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:48 pm -
1 stop7h 02m
Thu 9/108:00 am -
1 stop4h 22m
Deal found 8/3![Frontier logo]()
$146
This Frontier deal was found by Cheapflights users on 8/4. 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.
Fri 9/188:00 am -
1 stop3h 22m
Mon 9/2111:45 am -
1 stop8h 06m
Deal found 8/4![Frontier logo]()
$147
This Expedia deal was found by Cheapflights users on 8/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/314:48 pm -
1 stop7h 02m
Mon 9/710:17 pm -
1 stop21h 04m
Deal found 8/3![Frontier logo]()
$148
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 August 6, 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 August 6, 2026.
This Southwest deal was found by Cheapflights users on 8/1. 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 8/2911:30 am -
2 stops8h 35m
Sat 9/55:50 am -
1 stop3h 30m
Deal found 8/1![Southwest logo]()
$159
This Southwest deal was found by Cheapflights users on 8/1. 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 9/1910:00 am -
Nonstop1h 15m
Wed 9/237:45 am -
1 stop4h 35m
Deal found 8/1![Southwest logo]()
$161
This Southwest deal was found by Cheapflights users on 8/3. 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.
Mon 8/312:20 pm -
1 stop5h 00m
Mon 9/78:40 pm -
Nonstop1h 20m
Deal found 8/3![Southwest logo]()
$161
This Southwest deal was found by Cheapflights users on 8/1. 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 9/1210:00 am -
Nonstop1h 15m
Sat 9/194:00 pm -
1 stop4h 00m
Deal found 8/1![Southwest logo]()
$161
This Southwest deal was found by Cheapflights users on 8/4. 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 10/2411:45 am -
2 stops6h 10m
Mon 10/2611:00 am -
1 stop6h 05m
Deal found 8/4![Southwest logo]()
$176
This Southwest deal was found by Cheapflights users on 8/4. 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 8/259:05 am -
1 stop6h 55m
Fri 9/48:40 pm -
Nonstop1h 20m
Deal found 8/4![Southwest logo]()
$189
This Southwest deal was found by Cheapflights users on 8/3. 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.
Wed 8/264:25 pm -
Nonstop1h 10m
Fri 8/288:40 pm -
Nonstop1h 15m
Deal found 8/3![Southwest logo]()
$203
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/62:15 pm -
Nonstop1h 20m
Sun 10/115:10 pm -
Nonstop1h 20m
Deal found 8/1![Southwest logo]()
$255
This Southwest deal was found by Cheapflights users on 8/5. 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.
Sun 9/209:10 pm -
Nonstop1h 15m
Wed 9/233:35 pm -
Nonstop1h 20m
Deal found 8/5![Southwest logo]()
$255
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:15 pm -
Nonstop1h 10m
Sat 9/265:40 am -
1 stop5h 30m
Deal found 8/1![Southwest logo]()
$259
This Southwest deal was found by Cheapflights users on 8/5. 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.
Sat 8/291:10 pm -
1 stop6h 35m
Sun 8/302:30 pm -
Nonstop1h 15m
Deal found 8/5![Southwest logo]()
$281
Last-minute flights from Phoenix to OntarioDiscover last-minute flight deals from Phoenix to Ontario. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Ontario. Data last updated August 6, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 8/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:48 pm -
1 stop7h 02m
Wed 9/92:30 pm -
1 stop4h 33m
Deal found 8/5![Frontier logo]()
$141
This Southwest deal was found by Cheapflights users on 8/4. 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 9/510:00 am -
Nonstop1h 15m
Sun 9/67:05 am -
Nonstop1h 20m
Deal found 8/4![Southwest logo]()
$117
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/510:45 am -
Nonstop1h 18m
Sun 9/68:01 pm -
Nonstop1h 19m
Deal found 8/3![American Airlines logo]()
$118
This Southwest deal was found by Cheapflights users on 8/3. 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 9/510:00 am -
Nonstop1h 15m
Mon 9/78:40 pm -
Nonstop1h 20m
Deal found 8/3![Southwest logo]()
$134
This FlightHub deal was found by Cheapflights users on 8/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:48 pm -
1 stop7h 02m
Thu 9/108:00 am -
1 stop4h 22m
Deal found 8/3![Frontier logo]()
$146
This Frontier deal was found by Cheapflights users on 8/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:23 pm -
1 stop15h 46m
Mon 9/148:11 pm -
1 stop13h 34m
Deal found 8/6![Frontier logo]()
$148
This Frontier deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:30 am -
1 stop12h 09m
Wed 9/2311:45 am -
1 stop11h 58m
Deal found 8/1![Frontier logo]()
$145
This Frontier deal was found by Cheapflights users on 8/4. 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.
Fri 9/188:00 am -
1 stop3h 22m
Mon 9/2111:45 am -
1 stop8h 06m
Deal found 8/4![Frontier logo]()
$147
This Frontier deal was found by Cheapflights users on 8/1. 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 9/218:00 am -
1 stop3h 22m
Mon 9/212:30 pm -
1 stop8h 17m
Deal found 8/1![Frontier logo]()
$142
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 August 6, 2026.
Search for one-way flight options from Phoenix to Ontario. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This Southwest deal was found by Cheapflights users on 8/2. 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 11/2610:55 am -
Nonstop1h 15m
Deal found 8/2![Southwest logo]()
$59
This Super.com deal was found by Cheapflights users on 8/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:30 am -
1 stop7h 10m
Deal found 8/1![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:48 pm -
1 stop7h 02m
Deal found 8/1![Frontier logo]()
$71
This Super.com deal was found by Cheapflights users on 8/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:30 am -
1 stop7h 10m
Deal found 8/1![Frontier logo]()
$73
This Super.com deal was found by Cheapflights users on 8/3. 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 11/127:30 am -
1 stop7h 10m
Deal found 8/3![Frontier logo]()
$75
This Super.com deal was found by Cheapflights users on 8/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/199:15 am -
1 stop14h 32m
Deal found 8/2![Frontier logo]()
$76
This Frontier deal was found by Cheapflights users on 8/1. 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.
Tue 9/298:30 am -
1 stop8h 29m
Deal found 8/1![Frontier logo]()
$77
This Super.com deal was found by Cheapflights users on 8/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:40 pm -
1 stop17h 30m
Deal found 8/2![Frontier logo]()
$78
This Frontier deal was found by Cheapflights users on 8/2. 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 10/33:21 pm -
1 stop8h 26m
Deal found 8/2![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 8/2. 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.
Fri 9/410:30 pm -
1 stop9h 33m
Deal found 8/2![Frontier logo]()
$80
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 August 6, 2026.
Round-trip from | $117 (Southwest) |
|---|---|
One-way from | $59 (Southwest) |
Popular in | June |
Cheapest in | September |
Average price | $249 |
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 2,558,603 searches. Data last updated August 6, 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 8/29
11:30 am-8:05 pm
2 stops8h 35m
Ontario
Sat 9/5
5:50 am-9:20 am
1 stop3h 30m
$159
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Sat 9/19
10:00 am-11:15 am
Nonstop1h 15m
Ontario
Wed 9/23
7:45 am-12:20 pm
1 stop4h 35m
$161
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Mon 8/31
2:20 pm-7:20 pm
1 stop5h 00m
Ontario
Mon 9/7
8:40 pm-10:00 pm
Nonstop1h 20m
$161
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Sat 9/12
10:00 am-11:15 am
Nonstop1h 15m
Ontario
Sat 9/19
4:00 pm-8:00 pm
1 stop4h 00m
$161
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Sat 10/24
11:45 am-5:55 pm
2 stops6h 10m
Ontario
Mon 10/26
11:00 am-5:05 pm
1 stop6h 05m
$176
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Tue 8/25
9:05 am-4:00 pm
1 stop6h 55m
Ontario
Fri 9/4
8:40 pm-10:00 pm
Nonstop1h 20m
$189
Quickest round-trip
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Wed 8/26
4:25 pm-5:35 pm
Nonstop1h 10m
Ontario
Fri 8/28
8:40 pm-9:55 pm
Nonstop1h 15m
$203
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Tue 10/6
2:15 pm-3:35 pm
Nonstop1h 20m
Ontario
Sun 10/11
5:10 pm-6:30 pm
Nonstop1h 20m
$255
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Sun 9/20
9:10 pm-10:25 pm
Nonstop1h 15m
Ontario
Wed 9/23
3:35 pm-4:55 pm
Nonstop1h 20m
$255
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Fri 9/25
12:15 pm-1:25 pm
Nonstop1h 10m
Ontario
Sat 9/26
5:40 am-11:10 am
1 stop5h 30m
$259
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, September is the cheapest month in which you can book a flight from Phoenix to Ontario (average of $197). 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 August 6, 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 at noon, which can drop the price by up to 32% versus a flight in the evening.
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 $158 and $342 in September.The cheapest round-trip price found within the last 5 days was $117 on Southwest (Sep 5-Sep 6).
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 36 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 August 1, 2026.
Travelers seeking maximum savings on their Phoenix to Ontario flight should consider departing on Friday 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 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 August 6, 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.
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
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.
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 Phoenix to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Phoenix to Ontario by cabin class
Find flights from Phoenix to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 August 6, 2026.
Phoenix and Ontario flights
Browse other Phoenix and Ontario flight options. Last updated on August 6, 2026.
Popular flight searches
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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 2,558,603 searches. Data last updated August 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$174 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$97 | Average$282 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$97 | Average$267 | FlexibilityNo cancel fee | On-time63% |