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CA $85 Cheap Flights from Ontario Intl. Airport (ONT) to Phoenix (PHX)

View CA $85 flight on Thu, Oct 1, 2026Opens in a new window

Popular airlines from Ontario Intl. Airport (ONT) to Sky Harbor International Airport (PHX)

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Cheap flights from Ontario Intl. Airport (ONT) to Phoenix (PHX)

Prices were available within the past 7 days and start at CA $85 for one-way flights and CA $166 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Oct 1 - Sat, Oct 3
ONT
Ontario
PHX
Phoenix
CA $166 Roundtrip, found 3 days ago
CA $166
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Oct 1 from Ontario to Phoenix, returning Sat, Oct 3, priced at CA $166 found 3 days ago
American Airlines
Mon, Aug 31 - Tue, Sep 1
ONT
Ontario
PHX
Phoenix
CA $169 Roundtrip, found 3 days ago
CA $169
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Aug 31 from Ontario to Phoenix, returning Tue, Sep 1, priced at CA $169 found 3 days ago
American Airlines
Thu, Oct 1 - Sat, Oct 3
ONT
Ontario
PHX
Phoenix
CA $261 Roundtrip, found 3 days ago
CA $261
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Oct 1 from Ontario to Phoenix, returning Sat, Oct 3, priced at CA $261 found 3 days ago
American Airlines
Thu, Oct 1 - Sat, Oct 3
ONT
Ontario
PHX
Phoenix
CA $266 Roundtrip, found 3 days ago
CA $266
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Oct 1 from Ontario to Phoenix, returning Sat, Oct 3, priced at CA $266 found 3 days ago
American Airlines
Thu, Oct 1 - Sat, Oct 3
ONT
Ontario
PHX
Phoenix
CA $271 Roundtrip, found 3 days ago
CA $271
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Oct 1 from Ontario to Phoenix, returning Sat, Oct 3, priced at CA $271 found 3 days ago
American Airlines
Mon, Aug 31 - Tue, Sep 1
ONT
Ontario
PHX
Phoenix
CA $272 Roundtrip, found 3 days ago
CA $272
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Aug 31 from Ontario to Phoenix, returning Tue, Sep 1, priced at CA $272 found 3 days ago
United
Thu, Oct 1 - Sat, Oct 3
ONT
Ontario
PHX
Phoenix
CA $276 Roundtrip, found 3 days ago
CA $276
Roundtrip
found 3 days ago
Select United flight, departing Thu, Oct 1 from Ontario to Phoenix, returning Sat, Oct 3, priced at CA $276 found 3 days ago
American Airlines
Thu, Oct 1 - Sat, Oct 3
ONT
Ontario
PHX
Phoenix
CA $280 Roundtrip, found 3 days ago
CA $280
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Oct 1 from Ontario to Phoenix, returning Sat, Oct 3, priced at CA $280 found 3 days ago
Alaska Airlines
Thu, Sep 17 - Mon, Sep 21
ONT
Ontario
PHX
Phoenix
CA $683 Roundtrip, found 6 days ago
CA $683
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Sep 17 from Ontario to Phoenix, returning Mon, Sep 21, priced at CA $683 found 6 days ago
Delta
Mon, Aug 31 - Tue, Sep 1
ONT
Ontario
PHX
Phoenix
CA $1,030 Roundtrip, found 3 days ago
CA $1,030
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Aug 31 from Ontario to Phoenix, returning Tue, Sep 1, priced at CA $1,030 found 3 days ago

Alternative airports near Phoenix

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sky Harbor Intl. PHX. Cheapest and Closest option available. Average driving time to city centre is 10 minutes. Flights from CA $514
PHX
Sky Harbor Intl.
CheapestClosest
Average driving time to city centre10 min
Flights from CA $514

Find the cheapest month to fly from Ontario (ONT) to Phoenix (PHX)

March is typically the cheapest month to fly

From CA $137 - CA $431 per traveller.

Frequently asked questions

How much does a flight from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.) cost?
You can find one-way and return flights from ONT to PHX with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when ONT to PHX ticket fares go up or down.
What is the cheapest month to fly from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The cheapest months to fly from ONT to PHX are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
There are 2 airlines offering direct flights from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.):
  • American Airlines operates 34 direct flights from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.) every week.
  • Southwest Airlines operates 32 direct flights from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.) every week.
What is the cheapest airline that flies from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Southwest Airlines is one of the cheapest airlines offering nonstop return flights from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.), with tickets starting from around CA$134 for flights that can be booked for departure within the next year. For connecting flights, Frontier Airlines is one of the cheapest, with return tickets starting from around CA$155. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
To find a cheap flight from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The best airline to fly with from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.) will differ from traveler to traveler. If you like to fly early, Southwest Airlines offers early morning flights. If price is the most important factor, Southwest Airlines typically offers the lowest fares. Southwest Airlines offers the most daily flights from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
You'll find approximately 9 nonstop flights per day from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.). For even more choices, look at flights that include layovers, as there are around 61 connecting flights per day. Some common connection points include Harry Reid Intl. (LAS), Denver Intl. (DEN), and Seattle - Tacoma Intl. (SEA).
What is the earliest flight from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The earliest flight from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.) typically departs around 12:55 AM local time. This service is operated by American Airlines and is a seasonal service active in September. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
You'll find the most flights from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.) on Fridays, with around 55 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Southwest Airlines, Alaska Airlines, and Delta. Fridays offer notably more flight options compared to other days of the week, so if flexibility is key, this is a great day to consider flying.
What are the most popular departure times for flights from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The most popular departure times for flights from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.) are between 12pm and 3pm. Many major carriers, including Southwest Airlines, American Airlines and United, offer flights during this window. Many travellers prefer these times as they allow for a relaxed morning before heading to the airport, and you'll arrive in Phoenix with plenty of time to settle in.
How long does it take to fly from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
A non-stop flight from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.) typically takes around 1 hour 18 minutes. This route covers a distance of approximately 520 kilometres. If you opt for a flight with one stop, your journey will usually be longer, taking around 7 hours 30 minutes. Flights with two or more stops generally take even longer, at about 8 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.
Can you fly business or first class from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
You can fly business class or first class between ONT and PHX. Airlines that offer business class service on this route include:

  • Frontier Airlines
  • Delta

First class cabins are available on:

  • Alaska Airlines
  • Delta
  • United
  • American Airlines

How do I earn miles on a Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX) flight with Expedia?
It's easy to earn miles on a Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Phoenix, AZ (PHX) from Ontario Intl. Airport (ONT)?
If you're planning to travel to Phoenix from Los Angeles - Ontario Intl. (ONT), you can fly directly into Sky Harbor Intl. (PHX). Some flights may connect through major hubs like San Francisco Intl. (SFO), Sacramento Intl. (SMF), or Norman Y. Mineta San Jose Intl. (SJC) before reaching Phoenix. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX) at the last minute?
Typically, booking a last minute flight from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX) flight and hotel package?
Securing a Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
If you booked your Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ontario Intl. Airport
Destination airport
Sky Harbor Intl.
Roundtrip price
CA $165
Distance
517 km
Average flight time
1 hour 15 mins

Book with confidence

Los Angeles to Phoenix Flights

The easy way to book your flights from Ontario Intl. Airport to Phoenix 

With Expedia, it’s simple to find and book flights to Phoenix from Ontario Intl. Airport whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Sky Harbor Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ontario Intl. Airport to Phoenix today, tomorrow, or this week.  

 

Save dollars with cheap flights from Ontario Intl. Airport, ONT to Sky Harbor Intl., PHX 

Sort your search results by price to find great deals on your flight from Ontario Intl. Airport to Phoenix—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Phoenix from Ontario Intl. Airport currently is just CA $166 rising to CA $1,030.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Phoenix  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Phoenix from Ontario Intl. Airport 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Phoenix with Expedia today.

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