Cheap flights from Ontario to Phoenix from $39
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Phoenix departing on 11/5. 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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Alaska Airlines flights from Ontario to Phoenix Sky Harbor Intl Airport
Our best Alaska Airlines deals on Ontario to Phoenix Sky Harbor Intl Airport flight tickets
American Airlines flights from Ontario to Phoenix Sky Harbor Intl Airport
Our best American Airlines deals on Ontario to Phoenix Sky Harbor Intl Airport flight tickets
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How to get the cheapest flight ticket from Ontario to Phoenix Sky Harbor Intl Airport
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
What is the cheapest month to fly to Phoenix Sky Harbor Intl Airport?
In general, July is the cheapest month to fly from Ontario to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $146. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of July, then departing from Ontario during the month August is also very affordable. Most momondo users find prices during this month for around $162.
What is the cheapest day to depart on your flight to Phoenix Sky Harbor Intl Airport?
On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Ontario is on a Saturday. momondo users have found tickets for Saturday departures for as low as $204. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $294. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.
What is the cheapest time of day to depart on your flight to Phoenix Sky Harbor Intl Airport?
At noon is the cheapest time of day to fly from Ontario to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $157. Flying to Phoenix Sky Harbor Intl Airport at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $293. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Ontario to Phoenix Sky Harbor Intl flight route?
Fly from Ontario to Phoenix Sky Harbor Intl for the best Ontario - Phoenix Sky Harbor Intl flight prices
How far in advance should I book a flight to Phoenix Sky Harbor Intl Airport?
You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Ontario when booking 11 weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $230 when searching 11 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix Sky Harbor Intl Airport from Ontario for as low as $140 on momondo.
What cabin class options are available on Ontario to Phoenix Sky Harbor Intl flights?
There are 4 cabin classes available to choose from on Ontario to Phoenix Sky Harbor Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Ontario to Phoenix Sky Harbor Intl Airport flights?
No. A direct flight is the cheapest option for a flight between Ontario to Phoenix Sky Harbor Intl Airport.
How have Ontario to Phoenix Sky Harbor Intl Airport flight prices changed over time?
As of June 2025, prices for Ontario to Phoenix Sky Harbor Intl Airport flights are approximately 67% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Ontario to Phoenix Sky Harbor Intl?
Southwest, American Airlines, and Frontier are the most popular carriers operating from Ontario to Phoenix Sky Harbor Intl
What airlines fly to Phoenix Sky Harbor Intl Airport?
Frontier, American Airlines and Southwest are the top three most popular airlines that fly to Phoenix Sky Harbor Intl Airport from Ontario according to our data. Frontier is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Phoenix Sky Harbor Intl Airport. Keep in mind that there are 8 different airlines that fly to Phoenix Sky Harbor Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ontario to Phoenix Sky Harbor Intl Airport on average per day?
As of June 2025, 9 flights take off from Ontario and land in Phoenix Sky Harbor Intl Airport each day. The most common flight departure time for this route is 4:00PM, with 49% of daily flights taking off in the afternoon.
How many flights depart from Ontario to Phoenix Sky Harbor Intl Airport on average per week?
The number of flights available between Ontario and Phoenix Sky Harbor Intl Airport is 67 per week as of June 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.
When to book flights from Ontario to Phoenix Sky Harbor Intl Airport
Cheap Ontario to Phoenix Sky Harbor Intl Airport (ONT to PHX) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Phoenix Sky Harbor Intl Airport
How far is Ontario to Phoenix Sky Harbor Intl by plane?
The straight-line distance from Ontario to Phoenix Sky Harbor Intl is 327.4 mi. A reasonable flight in good conditions will take 1h 15m.
When did momondo last update prices for flights from Ontario Airport to Phoenix Sky Harbor Intl Airport?
Prices for flights from Ontario Airport to Phoenix Sky Harbor Intl Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Phoenix Sky Harbor Intl Airport?
As of June 2025, there are 3 operators available to choose from for flights from Ontario Airport to Phoenix Sky Harbor Intl Airport.
How old do you have to be to fly from Ontario Airport to Phoenix Sky Harbor Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Phoenix Sky Harbor Intl Airport.
What documentation or ID do you need to fly to Phoenix Sky Harbor Intl Airport?
The travel and health documents you'll need for your trip to Phoenix Sky Harbor Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Phoenix Sky Harbor Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ontario to Phoenix Sky Harbor Intl Airport?
Based on momondo bookings for flights between Ontario and Phoenix Sky Harbor Intl Airport, the leading plane model is Boeing 737 MAX 8, making up 9.74% of the total bookings. Other popular models include Airbus A321-100/200 with 9.60%, Boeing 737-800 Passenger/BBJ2 (winglets) with 9.00%, and Airbus A320neo with 7.88%.
What is the most popular airline from Ontario to Phoenix Sky Harbor Intl Airport?
Based on momondo bookings for flights between Ontario and Phoenix Sky Harbor Intl Airport, the leading airline is American Airlines, making up 41% of the total bookings. Other popular airlines include Frontier with 30% and Southwest with 29%.
Best airlines flying from Ontario to Phoenix Sky Harbor Intl Airport
Compare and see reviews for airlines that fly from Ontario to Phoenix Sky Harbor Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $39 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom $112 | Free Cancellation | Rating 8.0 4,278 reviews | |||
| PriceFrom $129 | Free Cancellation | Rating 7.2 10,000 reviews |
Southwest Flights From Ontario to Phoenix Sky Harbor Intl Airport
Southwest operates around 32 flights from Ontario to Phoenix Sky Harbor Intl Airport every week. The average price of these flights found in the last 72 hours has been $259, but momondo users have found Southwest deals from Ontario to Phoenix Sky Harbor Intl Airport from as low as $112 round-trip. Southwest has been scored 8.0/10 in 4,278 reviews.
American Airlines Flights From Ontario to Phoenix Sky Harbor Intl Airport
American Airlines (7.2/10 from 10,000 reviews) operates around 28 flights from Ontario to Phoenix Sky Harbor Intl Airport in any given week. The average American Airlines airfare for this route is around $281, with deals from around $129 rare but found on momondo. Referenced prices are for round-trip Ontario to Phoenix Sky Harbor Intl Airport flight searches in the last 72 hours.
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Why should I use momondo to find a flight deal from Ontario to Phoenix?
It is quick and easy to find Ontario to Phoenix flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Phoenix that suits you.
Can I find flights from Ontario to Phoenix with flexible booking policies on momondo?
All flight searches from Ontario to Phoenix on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Ontario to Phoenix?
momondo provides multiple filters to help you find the best flight to Phoenix from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Ontario to Phoenix right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Phoenix from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.