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Sky Harbor Intl

$49+ Cheap flights from Ontario (ONT) to Sky Harbor Intl (PHX)

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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHX
abr. 16 — abr. 231
mié. 4/16
mié. 4/23
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Phoenix Sky Harbor Intl are usually found in June or July, booked 75 days in advance, depart on a Friday or Saturday and return on a Wednesday

Cheap flight deals from Ontario to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Sky Harbor Intl (PHX). 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 abril 11, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$117
(Southwest)

One-way from

$49
(Southwest)

Popular in

December

Cheapest in

June

Average price

$160

Good round-trip deal

$313 or less

Good one-way deal

$167 or less
Provider with most accurate pricing for Ontario-Phoenix Sky Harbor Intl flight deals.
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Provider most trusted by Cheapflights users for Ontario-Phoenix Sky Harbor Intl flights.
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From Ontario to Phoenix Sky Harbor Intl
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One-way flight from Ontario to Phoenix Sky Harbor Intl
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Highest demand for flights based on searches. 23% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Ontario to Phoenix Sky Harbor Intl.
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Price to beat on a one-way flight from Ontario to Phoenix Sky Harbor Intl.
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Find flight deals from Ontario to Sky Harbor Intl

Cheapest flights from Ontario to Sky Harbor Intl
Explore the most affordable flight options available from Ontario to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 11, 2025.

This Southwest deal was found by Cheapflights users on 4/10. 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.
jue. 5/227:35 pmONT - PHX
1 stop3h 05mSouthwest
lun. 5/265:35 amPHX - ONT
1 stop5h 25mSouthwest
Deal found 4/10$117
This Cheapflightsfares deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/512:26 pmONT - PHX
1 stop6h 26mFrontier
jue. 5/82:33 pmPHX - ONT
1 stop3h 12mFrontier
Deal found 4/10$158
This American Airlines deal was found by Cheapflights users on 4/10. 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.
jue. 5/16:15 amONT - PHX
Nonstop1h 18mAmerican Airlines
lun. 5/57:41 amPHX - ONT
Nonstop1h 13mAmerican Airlines
Deal found 4/10$173
This Expedia deal was found by Cheapflights users on 4/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/712:08 amONT - PHX
1 stop8h 16mMultiple Airlines
sáb. 5/1011:00 amPHX - ONT
2 stops9h 29mMultiple Airlines
Deal found 4/9$262
This Delta deal was found by Cheapflights users on 4/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/277:05 pmONT - PHX
1 stop19h 41mDelta
mié. 6/46:00 amPHX - ONT
1 stop16h 35mDelta
Deal found 4/10$313
This Alaska Airlines deal was found by Cheapflights users on 4/10. 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.
sáb. 5/106:00 amONT - PHX
2 stops13h 19mAlaska Airlines
sáb. 5/176:00 amPHX - ONT
1 stop16h 46mAlaska Airlines
Deal found 4/10$348

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Sky Harbor Intl 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 abril 11, 2025.
Use the filters below to find and compare flights from Ontario to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Ontario

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

jue. 5/22

7:35 pm-10:40 pm

1 stop3h 05m

Phoenix Sky Harbor Intl

lun. 5/26

5:35 am-11:00 am

1 stop5h 25m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

lun. 5/5

12:26 pm-6:52 pm

1 stop6h 26m

Phoenix Sky Harbor Intl

jue. 5/8

2:33 pm-5:45 pm

1 stop3h 12m

$158

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

jue. 5/1

6:15 am-7:33 am

Nonstop1h 18m

Phoenix Sky Harbor Intl

lun. 5/5

7:41 am-8:54 am

Nonstop1h 13m

$173

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

mié. 5/7

12:08 am-8:24 am

1 stop8h 16m

Phoenix Sky Harbor Intl

sáb. 5/10

11:00 am-8:29 pm

2 stops9h 29m

$262

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

mar. 5/27

7:05 pm-2:46 pm

1 stop19h 41m

Phoenix Sky Harbor Intl

mar. 6/3

3:41 pm-11:04 am

1 stop19h 23m

$313

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

sáb. 5/10

6:00 am-7:19 pm

2 stops13h 19m

Phoenix Sky Harbor Intl

sáb. 5/17

6:00 am-10:46 pm

1 stop16h 46m

$348

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

mié. 9/3

10:00 am-6:41 pm

1 stop8h 41m

Phoenix Sky Harbor Intl

lun. 9/8

7:15 am-10:53 pm

1 stop15h 38m

$409

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

jue. 5/29

4:55 pm-6:10 pm

Nonstop1h 15m

$49

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

sáb. 5/3

12:59 am-8:24 am

1 stop7h 25m

$77

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

sáb. 4/19

4:35 pm-5:58 pm

Nonstop1h 23m

$100

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/11

Showing 1-10 of 14 results
1
2

Compare providers for flights from Ontario to Sky Harbor Intl

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 Ontario to Sky Harbor Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
CheapTicketsDealPrice 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 Ontario-Phoenix Sky Harbor Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Phoenix Sky Harbor Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Phoenix Sky Harbor Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Phoenix Sky Harbor Intl Airport 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 Ontario-Phoenix Sky Harbor Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Ontario to Phoenix Sky Harbor Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Ontario to Phoenix Sky Harbor Intl Airport trip
Airlines
Frontier

Frontier's UpFront Plus seats guarantee an empty middle seat for extra comfort.


Frontier offers no in-flight entertainment or Wi-Fi; bring your own entertainment.

Read more about Frontierby Marisa Garcia
Southwest

Southwest offers two free checked bags, including oversized items like skis or golf clubs.


Enjoy free in-flight entertainment with early-release movies and live TV on Southwest flights.

Read more about Southwestby Marisa Garcia
Airports
ONT

ONT offers quick security with smoother lines than LAX, making it ideal for business travelers on weekday flights.

Read more about ONTby Bill Fink
PHX

For a quick and inexpensive commute, take the light rail from PHX to Downtown Phoenix in under 20 minutes.

Read more about PHXby Brandon Schultz
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier and Southwest

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Brandon Schultz

Brandon Schultz

Expert on PHX

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Bill Fink

Bill Fink

Expert on ONT

Bill Fink

Bill Fink

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more

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

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

Cheapflights Insights

Everything you need to know about your flight from Ontario to Phoenix Sky Harbor Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Sky Harbor Intl. Price data was last updated on April 4, 2025.

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Phoenix Sky Harbor Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Ontario to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Ontario to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Ontario to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to PHX?

Find hourly flight availability from Ontario to Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 11, 2025.

It’s optimal to fly from Ontario to Phoenix Sky Harbor Intl Airport in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Sky Harbor Intl. Price data was last updated on March 30, 2025.

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

Weekly flight availability from Ontario to Phoenix Sky Harbor Intl Airport

Explore weekly flight availability from Ontario to Sky Harbor Intl. 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 abril 11, 2025.

The most flights from ONT to PHX are scheduled on a Monday (12 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 Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phoenix Sky Harbor Intl Airport ranges from 0.0 - 1.1 inches per month. July is typically the wettest month, when rainfall can reach 1.1 in. June is typically the driest time to visit Phoenix Sky Harbor Intl Airport when rainfall is around 0.0 in.

Temperature in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phoenix Sky Harbor Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 95.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 55.4 F).

Reviews of airlines servicing Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. 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 Sky Harbor Intl. Reviews last updated abril 11, 2025.
To help decide which airline to fly from Ontario to Phoenix, see what other customers have to say about Alaska Airlines, Southwest and Delta. 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.
Alaska Airlines
8.0
Very good
9,851 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,851 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,279 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,911 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,636 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Ontario to Sky Harbor Intl. 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 from for flights from Ontario to Phoenix Sky Harbor Intl?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Phoenix Sky Harbor Intl from Ontario. Booking flights from Ontario (ONT) to Phoenix Sky Harbor Intl should be relatively easy as there are 9 daily outbound flights to Phoenix Sky Harbor Intl from 3 different airlines.

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

    Currently priced at $117, Southwest will fly you from Ontario to Phoenix Sky Harbor Intl Airport and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and American Airlines - these airlines can fly you to your destination from $158 and $173, respectively. Southwest is 43% cheaper than the average price of flights available within the next 90 days to this destination.

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

    $49 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Frontier and American Airlines, with prices starting from $77 and $100, respectively.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ontario to Phoenix Sky Harbor Intl Airport on time: Envoy Air (96%), British Airways (95%), SkyWest Airlines (92%).

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

    On average you can expect to pay $688 for a flight from Ontario to Phoenix Sky Harbor Intl Airport. The cheapest flight overall is $93 while the most popular route, (Ontario - Phoenix Sky Harbor Intl) is currently priced at $97.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ontario to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Ontario to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). 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.

See more FAQs

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Chandler
Peoria
Buckeye
Globe
Glendale
Payson
Surprise
Camp Verde
Goodyear
Avondale
Paradise Valley
Guadalupe
Litchfield Park
Fountain Hills

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Alternative routes for Ontario to Sky Harbor Intl

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

Discover the top 3 airlines that operate flights from Ontario to Sky Harbor Intl. 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 abril 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$103FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$112Average$257FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$129Average$277FlexibilityNo cancel feeOn-time71%

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