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$49+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ONT
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Phoenix to Ontario are usually found in June or July, booked 70 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap 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 20, 2024.

Popular in

January

Cheapest in

June

Round-trip from

$106
(Cheapflightsfares)

One-way from

$49
(American Airlines)
High demand for flights, 27% potential price rise
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Best time to find cheap flights, 41% potential price drop
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From Phoenix to Ontario
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One-way flight from Phoenix to Ontario
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Find flight deals from Phoenix to Ontario

Cheapest flights from Phoenix to Ontario
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 20, 2024.

This Frontier deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” 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 12/125:23 pmPHX - ONT
1 stop7h 21mFrontier
Mon 12/1611:46 amONT - PHX
1 stop8h 03mFrontier
Deal found 11/19$108
This Southwest deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” 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 12/127:05 amPHX - ONT
1 stop5h 30mSouthwest
Thu 12/197:15 pmONT - PHX
Nonstop1h 15mSouthwest
Deal found 11/20$142
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” 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 12/129:46 pmPHX - ONT
Nonstop1h 17mAmerican Airlines
Thu 12/196:10 amONT - PHX
Nonstop1h 19mAmerican Airlines
Deal found 11/19$167
This Orbitz deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1311:56 amPHX - ONT
2 stops7h 53mMultiple Airlines
Sun 12/158:59 pmONT - PHX
1 stop10h 19mMultiple Airlines
Deal found 11/18$262
This Alaska Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/127:00 amPHX - ONT
1 stop17h 59mAlaska Airlines
Mon 12/167:00 amONT - PHX
2 stops12h 48mAlaska Airlines
Deal found 11/19$317
This United Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” 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 12/1810:40 amPHX - ONT
1 stop4h 53mUnited Airlines
Wed 12/251:57 pmONT - PHX
2 stops17h 26mUnited Airlines
Deal found 11/18$469

Find flights from Phoenix to Ontario within your budget

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 1/28

7:20 pm-11:47 pm

1 stop5h 27m

Ontario

Thu 1/30

7:56 am-12:26 pm

1 stop3h 30m

$106

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Wed 1/1

8:52 am-9:12 am

Nonstop1h 20m

Ontario

Wed 1/8

12:48 pm-3:06 pm

Nonstop1h 18m

$117

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 12/12

7:05 am-11:35 am

1 stop5h 30m

Ontario

Thu 12/19

7:15 pm-9:30 pm

Nonstop1h 15m

$142

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 12/13

11:56 am-6:49 pm

2 stops7h 53m

Ontario

Sun 12/15

8:59 pm-8:18 am

1 stop10h 19m

$262

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 2/11

2:45 pm-8:13 pm

1 stop6h 28m

Ontario

Thu 2/27

11:57 am-11:59 pm

1 stop11h 02m

$311

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 2/15

7:05 am-8:40 pm

2 stops14h 35m

Ontario

Sun 2/16

6:00 am-9:53 pm

1 stop14h 53m

$425

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Wed 12/25

6:40 pm-6:55 pm

Nonstop1h 15m

$49

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 1/9

6:00 am-10:26 am

1 stop5h 26m

$53

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Mon 1/13

8:40 am-9:09 am

Nonstop1h 29m

$84

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 2/4

8:00 am-5:04 pm

2 stops10h 04m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 11 results
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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.
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.

Travel insights for flights from Phoenix to Ontario

Get recent, data-driven insights about flights from Phoenix to Ontario including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Phoenix to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Phoenix to Ontario. Price data was last updated on November 15, 2024.

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 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $236). Flying from Phoenix to Ontario in December is currently the most expensive (average of $298). 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 20, 2024.

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 46% versus a flight in the afternoon.

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 18, 2024.

Travelers seeking maximum savings on their Phoenix to Ontario flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 20, 2024.

The most flights from PH1 to ONT are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 20, 2024.
Read reviews from past customers who have flown Alaska Airlines, United Airlines and Southwest from Phoenix to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

WestJet
7.3
Good
2,811 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

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.

  • What airport do you fly into for flights to Ontario from Phoenix?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from Phoenix to Ontario. 3 airlines have flights to Ontario from Phoenix on a regular basis. Booking flights from Phoenix to Ontario should not be difficult; the airport handles an average of 9 inbound flights from Phoenix per day.

  • What are the cheapest airlines flying from Phoenix to Ontario round-trip?

    Frontier, at $106, was found to be the cheapest airline from Phoenix to Ontario.Alternate airlines to your destination round-trip include American Airlines and Southwest. Frontier is 29% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Phoenix to Ontario one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $49. Users have also found prices from $53 and $98 on Frontier and Southwest, respectively.

  • What are the most reliable airlines from Phoenix to Ontario?

    The top 3 most reliable airlines when flying from Phoenix to Ontario are Envoy Air (90%), American Airlines (88%) and SkyWest Airlines (87%).

  • What are the cheapest flights from Phoenix to Ontario?

    While on average a flight from Phoenix to Ontario is generally $262, our data shows the cheapest flight currently is $59. When looking at the most popular route, (Phoenix Sky Harbor Intl - Ontario), you can expect to pay $108 for that flight.

  • Can I find deals for flights from Phoenix to Ontario that include hotel bookings?

    Yes. In addition to deals on Phoenix to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Phoenix to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phoenix to Ontario.

  • Can I find deals for business class flights from Phoenix to Ontario?

    Yes. Cheapflights offers flight deals from Phoenix to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $236). Flying from Phoenix to Ontario in December is currently the most expensive (average of $298). 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.

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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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$93FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$117Average$270FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$118Average$231FlexibilityNo cancel feeOn-time63%
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