CA $134 Cheap Flights from Phoenix (PHX) to Ontario Intl. Airport (ONT)

View CA $134 flight on Sat, Jun 13, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at CA $134 for one-way flights and CA $374 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, May 20 - Wed, May 27
PHX
Phoenix
ONT
Ontario
CA $374 Roundtrip, found 2 days ago
CA $374
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, May 20 from Phoenix to Ontario, returning Wed, May 27, priced at CA $374 found 2 days ago
American Airlines
Mon, May 18 - Mon, May 25
PHX
Phoenix
ONT
Ontario
CA $402 Roundtrip, found 4 days ago
CA $402
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, May 18 from Phoenix to Ontario, returning Mon, May 25, priced at CA $402 found 4 days ago
American Airlines
Wed, May 20 - Wed, May 27
PHX
Phoenix
ONT
Ontario
CA $422 Roundtrip, found 2 days ago
CA $422
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, May 20 from Phoenix to Ontario, returning Wed, May 27, priced at CA $422 found 2 days ago
United
Wed, May 20 - Wed, May 27
PHX
Phoenix
ONT
Ontario
CA $435 Roundtrip, found 2 days ago
CA $435
Roundtrip
found 2 days ago
Select United flight, departing Wed, May 20 from Phoenix to Ontario, returning Wed, May 27, priced at CA $435 found 2 days ago
American Airlines
Mon, May 18 - Mon, May 25
PHX
Phoenix
ONT
Ontario
CA $451 Roundtrip, found 4 days ago
CA $451
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, May 18 from Phoenix to Ontario, returning Mon, May 25, priced at CA $451 found 4 days ago
United
Mon, May 18 - Mon, May 25
PHX
Phoenix
ONT
Ontario
CA $464 Roundtrip, found 4 days ago
CA $464
Roundtrip
found 4 days ago
Select United flight, departing Mon, May 18 from Phoenix to Ontario, returning Mon, May 25, priced at CA $464 found 4 days ago
American Airlines
Wed, May 20 - Wed, May 27
PHX
Phoenix
ONT
Ontario
CA $469 Roundtrip, found 2 days ago
CA $469
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, May 20 from Phoenix to Ontario, returning Wed, May 27, priced at CA $469 found 2 days ago
American Airlines
Wed, May 20 - Wed, May 27
PHX
Phoenix
ONT
Ontario
CA $483 Roundtrip, found 2 days ago
CA $483
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, May 20 from Phoenix to Ontario, returning Wed, May 27, priced at CA $483 found 2 days ago
Alaska Airlines
Wed, May 20 - Wed, May 27
PHX
Phoenix
ONT
Ontario
CA $571 Roundtrip, found 2 days ago
CA $571
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, May 20 from Phoenix to Ontario, returning Wed, May 27, priced at CA $571 found 2 days ago
Delta
Wed, May 13 - Wed, May 20
PHX
Phoenix
ONT
Ontario
CA $2,179 Roundtrip, found 8 hours ago
CA $2,179
Roundtrip
found 8 hours ago
Select Delta flight, departing Wed, May 13 from Phoenix to Ontario, returning Wed, May 20, priced at CA $2,179 found 8 hours ago

Alternative airports near Ontario

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

Select flight to John Wayne SNA. Cheapest option available. Average driving time to city centre is 42 minutes. Flights from CA $493
SNA
John Wayne
Cheapest
Average driving time to city centre42 min
Flights from CA $493

Frequently asked questions

How much does a flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) cost?
One-way flights typically cost between $879 and $2,744 and return flights often range between $795 and $3,620. 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 the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
Which airlines fly direct from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Enter PHX to ONT and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
To find a cheap flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario 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 Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The best airline to fly with from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) will differ from traveler to traveler. If you like to fly early, AA offers early morning flights. If price is the most important factor, WN typically offers the lowest fares. WN offers the most daily flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario 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 Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario 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 Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
There are approximately 10 nonstop flights per day from Phoenix, AZ (PHX-Sky Harbor Intl.) (PHX) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) (ONT). For even more choice, look at flights that include layovers. You'll find around 84 connecting flights per day. Some common connection points include Denver Intl. (DEN), Harry Reid Intl. (LAS), and Seattle - Tacoma Intl. (SEA).
What is the earliest flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The earliest flight from Phoenix Sky Harbor International Airport (PHX) to Los Angeles - Ontario International Airport (ONT) typically departs at approximately 12:35 AM local time, operated by American Airlines. This is a seasonal service active in June, July, and August. An early departure like this can help you maximize 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 Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
If you're flying from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.), you'll generally find the most flights on a Friday, with around 78 flights available. This gives you plenty of options to choose from. Looking at the overall week, Friday and Sunday tend to have notably more flight options compared to other days, offering about 10% more flights than the average weekday. Major airlines on this route include Southwest Airlines, United Airlines, and Alaska Airlines.
What are the most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) are in the early morning, from 6am to 9am. About 25% of passengers prefer this time. Many major carriers, including Southwest Airlines and American Airlines, offer flights during this window. This timing works well for travelers who want to get an early start on their day in Ontario.
How long does it take to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Flying nonstop from PHX to ONT takes around 1 hour 20 minutes, with the route covering approximately 323 miles. Flights with a layover typically take 5 hours 30 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Select the "Business class" and "First class" filters when looking for PHX to ONT flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight with Expedia?
It's easy to earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) 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 Ontario from Sky Harbor Intl. (PHX)?
From Sky Harbor Intl. (PHX), you can fly into Los Angeles - Ontario Intl. (ONT) to reach Ontario. Some flights may connect through major hubs like Los Angeles Intl. (LAX), San Diego Intl. (SAN), John Wayne (SNA) before reaching Ontario. 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 Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) at the last minute?
Typically, booking a last minute flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) 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 Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight and hotel package?
Securing a Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) 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 Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
If you booked your Phoenix, AZ (PHX-Sky Harbor Intl.) to Ontario, CA (ONT-Los Angeles - Ontario 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
Sky Harbor Intl.
Destination airport
Ontario Intl. Airport
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
CA $374
Distance
517 km
Average flight time
1 hour 14 mins

Book with confidence

Phoenix to Los Angeles Flights

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

With Expedia, it’s simple to find and book flights to Ontario Intl. Airport from Phoenix 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 Ontario Intl. Airport, 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 Phoenix to Ontario Intl. Airport today, tomorrow, or this week.  

 

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

Sort your search results by price to find great deals on your flight from Phoenix to Ontario Intl. Airport—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Ontario Intl. Airport from Phoenix currently is just CA $374 rising to CA $2,179.  

Here are more money-saving tips: 

  • Fly in May when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Ontario Intl. Airport  
  • 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 Ontario Intl. Airport from Phoenix 

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 Ontario Intl. Airport with Expedia today.

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