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

Currently priced at $122, 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 $150 and $214, respectively. Southwest is 36% 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 American Airlines. You may also be able to find cheap deals on Southwest and Frontier, with prices starting from $59 and $75, respectively.

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

On average you can expect to pay $560 for a flight from Ontario to Phoenix Sky Harbor Intl Airport. The cheapest flight overall is $83 while the most popular route, (Ontario - Phoenix Sky Harbor Intl) is currently priced at $97.

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: British Airways (97%), SkyWest Airlines (92%), Envoy Air (89%).

What are the most popular airlines that fly from Ontario to Phoenix Sky Harbor Intl Airport?

When booking a flight from Ontario to Phoenix Sky Harbor Intl Airport, you may want to consider flying on American Airlines, Frontier or Southwest as they are the most popular for this route.

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

It’s generally more expensive to depart on a Thursday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

Our data shows that September tends to be the cheapest month to fly to Phoenix Sky Harbor Intl Airport from Ontario. Users have commonly found prices around $141 for the month, but tickets can be as low as $38. Due to multiple factors, prepare for potentially higher prices in March.

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.

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 8 daily outbound flights to Phoenix Sky Harbor Intl from 3 different airlines.

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.

$49+ Save on Flights from Ontario to Phoenix Sky Harbor Intl Airport

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Find cheap flights from Ontario to Sky Harbor Intl 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

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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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$122 (Southwest)
One-way from	$49 (American Airlines)
Popular in	December
Cheapest in	June
Average price	$177
Good round-trip deal	$314 or less
Good one-way deal	$173 or less

Provider with most accurate pricing for Ontario-Phoenix Sky Harbor Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Ontario-Phoenix Sky Harbor Intl flights.

Search Deals

From Ontario to Phoenix Sky Harbor Intl

Search Deals

One-way flight from Ontario to Phoenix Sky Harbor Intl

Search Deals

Highest demand for flights based on searches. 28% potential increase in price ($76 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Price to beat on a round-trip flight from Ontario to Phoenix Sky Harbor Intl.

Search Deals

Price to beat on a one-way flight from Ontario to Phoenix Sky Harbor Intl.

Search Deals

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 March 10, 2025.

Thu 4/36:05 pmONT - PHX

1 stop5h 05mSouthwest

Mon 4/72:50 pmPHX - ONT

1 stop4h 25mSouthwest

Deal found 3/10

$117

Mon 4/712:59 amONT - PHX

1 stop11h 06mFrontier

Tue 4/85:09 pmPHX - ONT

1 stop6h 50mFrontier

Deal found 3/10

$150

Wed 4/167:25 pmONT - PHX

Nonstop1h 15mAmerican Airlines

Fri 4/185:09 pmPHX - ONT

Nonstop1h 11mAmerican Airlines

Deal found 3/10

$172

Tue 4/87:00 amONT - PHX

1 stop9h 37mAlaska Airlines

Tue 4/89:08 pmPHX - ONT

1 stop12h 20mAlaska Airlines

Deal found 3/10

$343

Best flights from Ontario to Sky Harbor Intl
Discover carefully curated flight deals from Ontario to Sky Harbor Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2025.

Mon 4/143:55 pmONT - PHX

1 stop5h 45mSouthwest

Sat 4/192:25 pmPHX - ONT

Nonstop1h 10mSouthwest

Deal found 3/9

$122

Tue 4/13:17 pmONT - PHX

1 stop8h 40mFrontier

Tue 4/85:40 amPHX - ONT

1 stop8h 02mFrontier

Deal found 3/9

$150

Mon 3/314:30 pmONT - PHX

Nonstop1h 23mAmerican Airlines

Thu 4/35:16 pmPHX - ONT

Nonstop1h 17mAmerican Airlines

Deal found 3/9

$214

Fri 4/1112:49 amONT - PHX

1 stop6h 15mMultiple Airlines

Thu 4/1710:07 amPHX - ONT

2 stops13h 52mMultiple Airlines

Deal found 3/9

$297

Tue 4/87:00 amONT - PHX

1 stop9h 37mAlaska Airlines

Tue 4/89:08 pmPHX - ONT

1 stop12h 20mAlaska Airlines

Deal found 3/10

$343

Last-minute flights from Ontario to Sky Harbor Intl
Discover last-minute flight deals from Ontario to Sky Harbor Intl. Data last updated March 10, 2025 and is based on user searches.

Sun 3/1612:59 amONT - PHX

1 stop6h 31mMultiple Airlines

Tue 3/1810:51 amPHX - ONT

2 stops10h 36mMultiple Airlines

Deal found 3/10

$613

Mon 3/179:35 pmONT - PHX

1 stop23h 53mFrontier

Tue 4/85:09 pmPHX - ONT

1 stop6h 50mFrontier

Deal found 3/8

$203

Tue 3/186:00 amONT - PHX

2 stops17h 11mUnited Airlines

Mon 3/247:15 amPHX - ONT

1 stop12h 55mUnited Airlines

Deal found 3/10

$520

Tue 3/186:00 amONT - PHX

1 stop6h 26mDelta

Tue 3/187:12 pmPHX - ONT

1 stop4h 44mDelta

Deal found 3/10

$1,401

Thu 3/207:10 pmONT - PHX

Nonstop1h 15mSouthwest

Sat 3/2210:50 pmPHX - ONT

Nonstop1h 15mSouthwest

Deal found 3/9

$317

Thu 3/206:10 amONT - PHX

Nonstop1h 20mAmerican Airlines

Sat 3/225:16 pmPHX - ONT

Nonstop1h 17mAmerican Airlines

Deal found 3/9

$342

Thu 3/2011:33 amONT - PHX

1 stop12h 39mAlaska Airlines

Mon 3/241:59 pmPHX - ONT

2 stops10h 00mAlaska Airlines

Deal found 3/10

$725

Thu 4/36:05 pmONT - PHX

1 stop5h 05mSouthwest

Mon 4/72:50 pmPHX - ONT

1 stop4h 25mSouthwest

Deal found 3/10

$117

Mon 4/712:59 amONT - PHX

1 stop11h 06mFrontier

Tue 4/85:09 pmPHX - ONT

1 stop6h 50mFrontier

Deal found 3/10

$150

Tue 4/87:00 amONT - PHX

1 stop9h 37mAlaska Airlines

Tue 4/89:08 pmPHX - ONT

1 stop12h 20mAlaska Airlines

Deal found 3/10

$343

Wed 4/167:25 pmONT - PHX

Nonstop1h 15mAmerican Airlines

Fri 4/185:09 pmPHX - ONT

Nonstop1h 11mAmerican Airlines

Deal found 3/10

$172

One-way flights from Ontario to Sky Harbor Intl
Search for one-way flight options from Ontario to Sky Harbor Intl. Find affordable one-way fares based on user searches. Data last updated March 10, 2025.

Wed 4/166:15 amONT - PHX

Nonstop1h 18mAmerican Airlines

Deal found 3/10

$49

Thu 4/107:35 pmONT - PHX

1 stop3h 05mSouthwest

Deal found 3/10

$59

Wed 5/712:16 pmONT - PHX

1 stop6h 36mFrontier

Deal found 3/10

$75

Tue 4/87:00 amONT - PHX

2 stops17h 12mAlaska Airlines

Deal found 3/10

$177

Mon 4/73:55 pmONT - PHX

2 stops16h 50mUnited Airlines

Deal found 3/9

$229

Tue 6/36:00 amONT - PHX

3 stops13h 50mMultiple Airlines

Deal found 3/10

$502

Find flights from Ontario to Sky Harbor Intl within your budget

Fly from

Fly to

Route

Depart

Return

Price

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 4/3

6:05 pm-11:10 pm

1 stop5h 05m

Phoenix Sky Harbor Intl

Mon 4/7

2:50 pm-7:15 pm

1 stop4h 25m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Mon 3/24

4:30 pm-5:53 pm

Nonstop1h 23m

Phoenix Sky Harbor Intl

Sat 4/26

10:34 am-11:59 am

Nonstop1h 25m

$127

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 4/1

12:59 am-9:56 am

1 stop8h 57m

Phoenix Sky Harbor Intl

Wed 4/2

2:05 pm-8:19 pm

1 stop6h 14m

$150

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 4/8

7:00 am-4:37 pm

1 stop9h 37m

Phoenix Sky Harbor Intl

Tue 4/8

9:08 pm-9:28 am

1 stop12h 20m

$343

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Fri 3/28

6:55 am-6:51 pm

2 stops11h 56m

Phoenix Sky Harbor Intl

Sun 3/30

5:40 am-1:58 pm

1 stop8h 18m

$448

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 4/8

4:35 pm-5:58 pm

Nonstop1h 23m

$49

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 4/10

3:55 pm-8:40 pm

1 stop4h 45m

$59

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 5/6

12:16 pm-6:52 pm

1 stop6h 36m

$75

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Mon 4/14

6:55 am-12:12 am

2 stops17h 17m

$187

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Mon 6/2

6:41 pm-12:18 pm

2 stops17h 37m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 11 results

Compare providers for flights from Ontario to Sky Harbor Intl

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 March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Mytrip	Price Accuracy3 stars	Trust Score*3 stars
Flightnetwork	Price Accuracy-	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
CheapTicketsDeal	Price Accuracy3 stars	Trust Score*3 stars
Kiwi.com	Price Accuracy3 stars	Trust 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

Find out what our experts recommend to make the most of 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.

PHX

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

Our travel experts

Marisa Garcia

Expert on Frontier and Southwest

Brandon Schultz

Expert on PHX

Bill Fink

Expert on ONT

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.

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.

Travel insights for flights from Ontario to Sky Harbor Intl

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

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

Booking 75 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?

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 29% 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?

Travelers seeking maximum savings on their Ontario to Phoenix Sky Harbor Intl Airport flight should consider departing on Tuesday afternoons 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

The most flights from ONT to PHX 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 (4 on average).

Rainfall in Sky Harbor Intl 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

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

To help decide which airline to fly from Ontario to Phoenix, see what other customers have to say about Southwest, Alaska Airlines and United Airlines. 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.

Southwest

8.1

Very good

4,300 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest

8.1

Very good

4,300 reviews

Southwest

8.1

Very good

4,300 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines

8.0

Very good

9,727 reviews

Southwest

8.1

Very good

4,300 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

United Airlines

7.4

Good

8,631 reviews

Southwest

8.1

Very good

4,300 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.1

Very good

4,300 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Frontier

6.0

Okay

3,308 reviews

Southwest

8.1

Very good

4,300 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

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 8 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 $122, 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 $150 and $214, respectively. Southwest is 36% 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 American Airlines. You may also be able to find cheap deals on Southwest and Frontier, with prices starting from $59 and $75, 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: British Airways (97%), SkyWest Airlines (92%), Envoy Air (89%).
What are the cheapest flights from Ontario to Phoenix Sky Harbor Intl Airport?
On average you can expect to pay $560 for a flight from Ontario to Phoenix Sky Harbor Intl Airport. The cheapest flight overall is $83 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.

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Top 3 airlines flying from Ontario to Sky Harbor Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$39	Average$101	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$118	Average$258	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$134	Average$269	FlexibilityNo cancel fee	On-time71%

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$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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Sky Harbor Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Ontario to Sky Harbor Intl

Cheapest flights from Ontario to Sky Harbor IntlExplore 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 March 10, 2025.

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 March 10, 2025.

Find flights from Ontario to Sky Harbor Intl within your budget

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 March.

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

Find out what our experts recommend to make the most of your Ontario to Phoenix Sky Harbor Intl Airport trip

Airlines

Frontier

Southwest

Airports

ONT

PHX

Our travel experts

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.

Travel insights for flights from Ontario to Sky Harbor Intl

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

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 March 7, 2025.

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

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 March 10, 2025.

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 9, 2025.

Weekly flight availability from Ontario to Phoenix Sky Harbor Intl Airport

Rainfall in Sky Harbor Intl by month

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

Temperature in Sky Harbor Intl by month

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

Reviews of airlines servicing Sky Harbor Intl

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?

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

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

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

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

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

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

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

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

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Alternative routes for Ontario to Sky Harbor Intl

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Top 3 airlines flying from Ontario to Sky Harbor Intl

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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 March 10, 2025.