Cheap flights from Phoenix to Ontario from $49
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix to Ontario departing on 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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1 adult
Economy
0 bags
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Cheap round-trip flights
KAYAK's recommended round-trip deals from the most popular airlines that fly from Phoenix to Los Angeles.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Phoenix to Los Angeles.
Cheap last minute flights
Planning a quick getaway from Phoenix to Los Angeles? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to Los Angeles, so you can enjoy a seamless trip without layovers.
Alaska Airlines flights from Phoenix to Ontario
Our best Alaska Airlines deals on Phoenix to Ontario flight tickets
Alaska Airlines![Alaska Airlines]()
May 14![Alaska Airlines]()
May 16
PHX6:00 amPhoenix Sky Harbor Intl
9h 32m
1 stop
ONT3:32 pmOntario
ONT4:45 pmOntario
7h 13m
1 stop
PHX11:58 pmPhoenix Sky Harbor Intl
Alaska Airlines![Alaska Airlines]()
May 13![Alaska Airlines]()
May 16
PHX6:00 amPhoenix Sky Harbor Intl
9h 32m
1 stop
ONT3:32 pmOntario
ONT4:45 pmOntario
7h 13m
1 stop
PHX11:58 pmPhoenix Sky Harbor Intl
Frontier flights from Phoenix to Ontario
Our best Frontier deals on Phoenix to Ontario flight tickets
Frontier![Frontier]()
May 8![Frontier]()
May 15
PHX5:50 amPhoenix Sky Harbor Intl
5h 25m
1 stop
ONT11:15 amOntario
ONT8:24 amOntario
5h 08m
1 stop
PHX1:32 pmPhoenix Sky Harbor Intl
Frontier![Frontier]()
May 8![Frontier]()
May 12
PHX5:50 amPhoenix Sky Harbor Intl
5h 25m
1 stop
ONT11:15 amOntario
ONT8:24 amOntario
5h 08m
1 stop
PHX1:32 pmPhoenix Sky Harbor Intl
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How to get the cheapest flight ticket from Phoenix to Ontario
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
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Airlines
Other information
What is the cheapest month to fly to Ontario?
In general, June is the cheapest month to fly from Phoenix to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $88. If you aren’t able to travel during the month of June, then book flights to Ontario from Phoenix during July instead. Flights to Ontario in July, while not as cheap as those in June, still average around $99.
What is the cheapest day to depart on your flight to Ontario?
The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as $104. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Phoenix to Ontario for around $247.
What is the cheapest time of day to depart on your flight to Ontario?
At noon is the cheapest time of day to fly from Phoenix to Ontario when you can find flight prices for as low as $105. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $211 on average. Flights to Ontario from Phoenix in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Phoenix to Ontario flight route?
Fly from Phoenix Sky Harbor Intl to Ontario for the best Phoenix - Ontario flight prices
How far in advance should I book a flight to Ontario?
You are more likely to see cheaper flights to Ontario from Phoenix when booking 12 weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $193 when searching 12 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Phoenix for as low as $100 on momondo.
What cabin class options are available on Phoenix to Ontario flights?
There are 3 cabin classes available to choose from on Phoenix to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Phoenix to Ontario?
American Airlines, Southwest, and Frontier are the most popular carriers operating from Phoenix to Ontario
What airlines fly to Ontario?
Frontier, American Airlines and Southwest are the top three most popular airlines that fly to Ontario from Phoenix according to our data. Frontier is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.
How many flights depart from Phoenix to Ontario on average per day?
10 flights are operational daily from Phoenix to Ontario as of April 2025. The most popular departure time for this route is 8:00PM, with 34% of flights per day taking off in the afternoon.
How many flights depart from Phoenix to Ontario on average per week?
As of April 2025, there are 70 flights per week flying from Phoenix to Ontario. The most common day of the week flights depart is Mon, with 19% of flights taking off on this day.
Cheap Phoenix to Ontario flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Phoenix to Ontario
How far is Phoenix to Ontario by plane?
The distance between Phoenix and Ontario is about 322.9 mi. 1h 10m is a normal flight duration for this route.
When did momondo last update prices for flights from Phoenix to Ontario Airport?
Prices for flights from Phoenix to Ontario Airport are updated daily.
How many operators does momondo search for flights from Phoenix to Ontario Airport?
As of April 2025, there are 3 operators available to choose from for flights from Phoenix to Ontario Airport.
How old do you have to be to fly from Phoenix to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Phoenix to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Phoenix to Ontario
Compare and see reviews for airlines that fly from Phoenix to Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $39 | Free Cancellation | Rating 5.9 3,280 reviews | |||
| PriceFrom $113 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $129 | Free Cancellation | Rating 8.0 4,278 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Phoenix to Ontario?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Phoenix to Ontario. momondo saves you time and could save you money on your trip.
Can I find flights from Phoenix to Ontario with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Ontario from Phoenix with this policy.
How can momondo help me find flights from Phoenix to Ontario?
momondo provides multiple filters to help you find the best flight to Ontario from Phoenix. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Phoenix to Ontario right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Phoenix and alert you when they change.