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£84 Cheap Flights from Ontario Intl. Airport (ONT) to Phoenix (PHX)

View £84 flight on Wed, 26 May 2027Opens 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 £84 for one-way flights and £169 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, 10 Nov - Sat, 21 Nov
ONT
Ontario
PHX
Phoenix
£169 Return, found 2 hours ago
£169
Return
found 2 hours ago
Select American Airlines flight, departing Tue, 10 Nov from Ontario to Phoenix, returning Sat, 21 Nov, priced at £169 found 2 hours ago
American Airlines
Sat, 14 Nov - Thu, 19 Nov
ONT
Ontario
PHX
Phoenix
£178 Return, found 2 hours ago
£178
Return
found 2 hours ago
Select American Airlines flight, departing Sat, 14 Nov from Ontario to Phoenix, returning Thu, 19 Nov, priced at £178 found 2 hours ago
American Airlines
Thu, 28 Jan - Mon, 1 Feb
ONT
Ontario
PHX
Phoenix
£182 Return, found 3 days ago
£182
Return
found 3 days ago
Select American Airlines flight, departing Thu, 28 Jan from Ontario to Phoenix, returning Mon, 1 Feb, priced at £182 found 3 days ago
American Airlines
Wed, 26 May - Sat, 29 May
ONT
Ontario
PHX
Phoenix
£184 Return, found 6 days ago
£184
Return
found 6 days ago
Select American Airlines flight, departing Wed, 26 May from Ontario to Phoenix, returning Sat, 29 May, priced at £184 found 6 days ago
American Airlines
Thu, 12 Nov - Thu, 19 Nov
ONT
Ontario
PHX
Phoenix
£185 Return, found 2 hours ago
£185
Return
found 2 hours ago
Select American Airlines flight, departing Thu, 12 Nov from Ontario to Phoenix, returning Thu, 19 Nov, priced at £185 found 2 hours ago
American Airlines
Thu, 28 Jan - Mon, 1 Feb
ONT
Ontario
PHX
Phoenix
£190 Return, found 3 days ago
£190
Return
found 3 days ago
Select American Airlines flight, departing Thu, 28 Jan from Ontario to Phoenix, returning Mon, 1 Feb, priced at £190 found 3 days ago
Southwest Airlines
Thu, 28 Jan - Mon, 1 Feb
ONT
Ontario
PHX
Phoenix
£197 Return, found 3 days ago
£197
Return
found 3 days ago
Select Southwest Airlines flight, departing Thu, 28 Jan from Ontario to Phoenix, returning Mon, 1 Feb, priced at £197 found 3 days ago
United
Thu, 28 Jan - Mon, 1 Feb
ONT
Ontario
PHX
Phoenix
£215 Return, found 3 days ago
£215
Return
found 3 days ago
Select United flight, departing Thu, 28 Jan from Ontario to Phoenix, returning Mon, 1 Feb, priced at £215 found 3 days ago
Alaska Airlines
Wed, 14 Oct - Wed, 21 Oct
ONT
Ontario
PHX
Phoenix
£353 Return, found 4 days ago
£353
Return
found 4 days ago
Select Alaska Airlines flight, departing Wed, 14 Oct from Ontario to Phoenix, returning Wed, 21 Oct, priced at £353 found 4 days ago
Delta
Thu, 28 Jan - Mon, 1 Feb
ONT
Ontario
PHX
Phoenix
£467 Return, found 3 days ago
£467
Return
found 3 days ago
Select Delta flight, departing Thu, 28 Jan from Ontario to Phoenix, returning Mon, 1 Feb, priced at £467 found 3 days ago

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

October is typically the cheapest month to fly

From £86 - £140 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.
How do I find cheap flights from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX)?
To find a cheap flight from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX), 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 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.
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.
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)?
Select the "Business class" and "First class" filters when looking for Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX) 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 Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight with Expedia?
It's easy to earn miles on a Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor 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 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-Sky Harbor Intl.) at the last minute?
Typically, booking a last minute flight from Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor 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 Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight and hotel package?
Securing a Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX-Sky Harbor 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 Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX)?
If you booked your Ontario Intl. Airport (ONT) to Phoenix, AZ (PHX) 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.
Airlines serving
Alaska Airlines
Return price
£169
Distance
517 km
Average flight time
1 hour 18 mins

Book with confidence

Compare flights from Ontario Intl. Airport to Phoenix easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Ontario Intl. Airport to Phoenix. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Sky Harbor Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Ontario Intl. Airport to Sky Harbor Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Ontario Intl. Airport (ONT) to Sky Harbor Intl. (PHX)

The easiest way to view the best deals on flights from Ontario Intl. Airport to Phoenix today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Ontario Intl. Airport to Sky Harbor Intl. start at just £169 and range up to £592.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Ontario Intl. Airport and Phoenix
  • booking your flight during November, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Ontario Intl. Airport to Phoenix flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Ontario Intl. Airport to Sky Harbor Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Ontario Intl. Airport to Phoenix easily and book with confidence

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*Available to Expedia members.