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$55+ Cheap flights from Sky Harbor Intl (PHX) 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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ONT
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Phoenix Sky Harbor Intl to Ontario are usually found in June or July, booked 70 days in advance, depart on a Wednesday or Saturday and return on a Friday

Cheap flight deals from Sky Harbor Intl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$109
(Frontier)

One-way from

$55
(Frontier)

Popular in

December

Cheapest in

June

Average price

$188

Good round-trip deal

$218 or less

Good one-way deal

$122 or less
Provider with most accurate pricing for Phoenix Sky Harbor Intl-Ontario flight deals.
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Provider most trusted by Cheapflights users for Phoenix Sky Harbor Intl-Ontario flights.
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From Phoenix Sky Harbor Intl to Ontario
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One-way flight from Phoenix Sky Harbor Intl to Ontario
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Highest demand for flights based on searches. 33% potential increase in price ($86 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Ontario.
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Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Ontario.
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Find flight deals from Sky Harbor Intl to Ontario

Cheapest flights from Sky Harbor Intl to Ontario
Explore the most affordable flight options available from Sky Harbor Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Frontier deal was found by Cheapflights users on 2/19. 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 5/17:50 amPHX - ONT
1 stop7h 49mFrontier
Tue 5/610:44 amONT - PHX
1 stop6h 27mFrontier
Deal found 2/19$109
This Southwest deal was found by Cheapflights users on 2/20. 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 3/132:35 pmPHX - ONT
Nonstop1h 15mSouthwest
Fri 3/144:40 pmONT - PHX
Nonstop1h 15mSouthwest
Deal found 2/20$132
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/207:26 amPHX - ONT
Nonstop1h 21mAmerican Airlines
Mon 3/249:32 amONT - PHX
Nonstop1h 21mAmerican Airlines
Deal found 2/20$148
This Orbitz deal was found by Cheapflights users on 2/18. 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.
Thu 3/67:00 amPHX - ONT
1 stop7h 43mMultiple Airlines
Tue 3/116:00 amONT - PHX
2 stops10h 34mMultiple Airlines
Deal found 2/18$226
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/136:00 amPHX - ONT
1 stop17h 24mAlaska Airlines
Sat 3/156:00 amONT - PHX
2 stops16h 59mAlaska Airlines
Deal found 2/20$298

Find flights from Sky Harbor Intl to Ontario within your budget

Customize your flight search to find flights from Sky Harbor Intl 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 February 20, 2025.

Fly from

Sky Harbor Intl

Fly to

Ontario

Route

Depart

Return

Price

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 5/1

7:50 am-3:39 pm

1 stop7h 49m

Ontario

Tue 5/6

10:44 am-5:11 pm

1 stop6h 27m

$109

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 3/13

2:35 pm-3:50 pm

Nonstop1h 15m

Ontario

Fri 3/14

4:40 pm-5:55 pm

Nonstop1h 15m

$132

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 3/20

7:26 am-8:47 am

Nonstop1h 21m

Ontario

Mon 3/24

9:32 am-10:53 am

Nonstop1h 21m

$148

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 3/6

7:00 am-1:43 pm

1 stop7h 43m

Ontario

Tue 3/11

6:00 am-4:34 pm

2 stops10h 34m

$226

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 3/13

6:00 am-11:24 pm

1 stop17h 24m

Ontario

Sat 3/15

6:00 am-10:59 pm

2 stops16h 59m

$298

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 3/20

5:06 pm-11:59 pm

1 stop6h 53m

Ontario

Mon 3/24

6:00 am-1:03 pm

1 stop7h 03m

$501

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 2/28

8:36 pm-2:30 pm

1 stop18h 54m

Ontario

Mon 3/3

7:40 pm-1:32 pm

2 stops16h 52m

$520

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 4/10

5:40 am-2:12 pm

1 stop8h 32m

$55

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 4/10

7:43 am-8:59 am

Nonstop1h 16m

$59

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 5/15

4:00 pm-9:10 pm

1 stop5h 10m

$69

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 12 results
1
2

Compare providers for flights from Sky Harbor Intl to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sky Harbor Intl to Ontario in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phoenix Sky Harbor Intl Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phoenix Sky Harbor Intl Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sky Harbor Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Sky Harbor Intl 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 Sky Harbor Intl to Ontario

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

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Ontario. Price data was last updated on February 14, 2025.

The best time to book flights from Phoenix Sky Harbor Intl Airport to Ontario is 70 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 month to book a flight from Phoenix Sky Harbor Intl Airport to Ontario?

Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Ontario (average of $246). Flying from Phoenix Sky Harbor Intl Airport to Ontario in March is currently the most expensive (average of $315). 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 Sky Harbor Intl 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 February 20, 2025.

When flying from Phoenix Sky Harbor Intl Airport 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 50% versus a flight in the afternoon.

What is the cheapest day to fly from Phoenix Sky Harbor Intl Airport to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Ontario. Price data was last updated on February 16, 2025.

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Ontario flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Phoenix Sky Harbor Intl Airport to Ontario

Explore weekly flight availability from Sky Harbor Intl 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 February 20, 2025.

The most flights from PHX to ONT are scheduled on a Thursday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Hawaiian Airlines from Phoenix to Ontario to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

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

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

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

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

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

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

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

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

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

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

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 Sky Harbor Intl 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 Sky Harbor Intl?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from Phoenix Sky Harbor Intl to Ontario. 3 airlines have flights to Ontario from Phoenix Sky Harbor Intl on a regular basis. Booking flights from Phoenix Sky Harbor Intl to Ontario should not be difficult; the airport handles an average of 7 inbound flights from Phoenix Sky Harbor Intl per day.

  • What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Ontario round-trip?

    Currently priced at $109, Frontier will fly you from Phoenix Sky Harbor Intl Airport to Ontario and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and American Airlines - these airlines can fly you to your destination from $132 and $148, respectively. Frontier is priced at 37% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Ontario one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $55. Users have also found prices from $59 and $69 on American Airlines and Southwest, respectively.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Ontario?

    Before booking your flight to Ontario from Phoenix Sky Harbor Intl Airport, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (100%), Envoy Air (96%), American Airlines( 94%).

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Ontario?

    On average you can expect to pay $246 for a flight from Phoenix Sky Harbor Intl Airport to Ontario. The cheapest flight overall is $68 while the most popular route, (Phoenix Sky Harbor Intl - Ontario) is currently priced at $109.

  • Can I find deals for flights from Sky Harbor Intl to Ontario that include hotel bookings?

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

  • How can I find direct flights from Sky Harbor Intl to Ontario?

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

  • Can I find deals for business class flights from Sky Harbor Intl to Ontario?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl 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 Sky Harbor Intl Airport to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Ontario (average of $246). Flying from Phoenix Sky Harbor Intl Airport to Ontario in March is currently the most expensive (average of $315). 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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Alternative routes for Sky Harbor Intl to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Sky Harbor Intl to Ontario

Discover the top 3 airlines that operate flights from Sky Harbor Intl 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$100FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$117Average$273FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$138Average$272FlexibilityNo cancel feeOn-time63%
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