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Cheap flights from Ontario to Phoenix Sky Harbor Intl Airport from $78

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 Sky Harbor Intl Airport departing on 4/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Phoenix

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Phoenix.
Frontier Logo
12:59 am - 12:07 pmONT-PHX
11h 08m1 stop
Frontier Logo
5:40 am - 11:20 amPHX-ONT
5h 40m1 stop
$153Frontier
Find Deal
Tue, Apr 22 - Wed, Apr 30
Frontier Logo
12:49 am - 7:04 amONT-PHX
6h 15m1 stop
Frontier Logo
10:00 am - 5:57 pmPHX-ONT
7h 57m1 stop
$154Frontier
Find Deal
Fri, Apr 11 - Sat, Apr 12
American Airlines Logo
6:15 am - 7:33 amONT-PHX
1h 18mnonstop
American Airlines Logo
8:43 pm - 9:58 pmPHX-ONT
1h 15mnonstop
$217American Airlines
Find Deal
Tue, Apr 29 - Tue, Apr 29
American Airlines Logo
1:14 pm - 2:29 pmONT-PHX
1h 15mnonstop
American Airlines Logo
10:31 am - 11:50 amPHX-ONT
1h 19mnonstop
$222American Airlines
Find Deal
Thu, May 22 - Wed, May 28
Southwest Logo
7:55 am - 1:45 pmONT-PHX
5h 50m1 stop
Southwest Logo
4:00 pm - 5:15 pmPHX-ONT
1h 15mnonstop
$227Southwest
Find Deal
Tue, Apr 29 - Tue, Apr 29
Southwest Logo
8:15 pm - 9:30 pmONT-PHX
1h 15mnonstop
Southwest Logo
4:20 pm - 5:35 pmPHX-ONT
1h 15mnonstop
$230Southwest
Find Deal
Wed, May 7 - Mon, May 12
 Logo
12:59 am - 9:56 amONT-PHX
8h 57m1 stop
 Logo
7:00 am - 3:32 pmPHX-ONT
8h 32m2 stops
Tue, Apr 15 - Tue, Apr 22
 Logo
12:59 am - 12:07 pmONT-PHX
11h 08m1 stop
 Logo
9:00 am - 11:59 pmPHX-ONT
14h 59m2 stops
Tue, May 6 - Mon, May 12
Alaska Airlines Logo
6:00 am - 12:51 pmONT-PHX
6h 51m1 stop
Alaska Airlines Logo
8:49 pm - 10:57 amPHX-ONT
14h 08m1 stop
$332Alaska Airlines
Find Deal
Tue, May 27 - Fri, May 30
Alaska Airlines Logo
6:00 am - 11:59 pmONT-PHX
17h 59m1 stop
Alaska Airlines Logo
5:30 pm - 10:51 amPHX-ONT
17h 21m2 stops
$333Alaska Airlines
Find Deal
Wed, Apr 23 - Thu, Apr 24

Frontier flights from Ontario to Phoenix Sky Harbor Intl Airport

Our best Frontier deals on Ontario to Phoenix Sky Harbor Intl Airport flight tickets
Frontier
Apr 22
ONT12:59 amOntario
11h 08m
1 stop
PHX12:07 pmPhoenix Sky Harbor Intl
Apr 30
PHX5:40 amPhoenix Sky Harbor Intl
5h 40m
1 stop
ONT11:20 amOntario
Frontier
Apr 11
ONT12:49 amOntario
6h 15m
1 stop
PHX7:04 amPhoenix Sky Harbor Intl
Apr 12
PHX10:00 amPhoenix Sky Harbor Intl
7h 57m
1 stop
ONT5:57 pmOntario
Frontier
Apr 25
ONT12:11 pmOntario
6h 05m
1 stop
PHX6:16 pmPhoenix Sky Harbor Intl
Apr 27
PHX5:40 amPhoenix Sky Harbor Intl
5h 40m
1 stop
ONT11:20 amOntario

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
American Airlines
Apr 29
ONT6:15 amOntario
1h 18m
PHX7:33 amPhoenix Sky Harbor Intl
Apr 29
PHX8:43 pmPhoenix Sky Harbor Intl
1h 15m
ONT9:58 pmOntario
American Airlines
May 22
ONT1:14 pmOntario
1h 15m
PHX2:29 pmPhoenix Sky Harbor Intl
May 28
PHX10:31 amPhoenix Sky Harbor Intl
1h 19m
ONT11:50 amOntario
American Airlines
Apr 22
ONT6:15 amOntario
1h 18m
PHX7:33 amPhoenix Sky Harbor Intl
Apr 24
PHX10:34 amPhoenix Sky Harbor Intl
1h 25m
ONT11:59 amOntario

See travel insights to Phoenix from

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, June 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 $104. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of June, then departing from Ontario during the month July is also very affordable. Most momondo users find prices during this month for around $118.

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 Friday. momondo users have found tickets for Friday departures for as low as $208. 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?

In the afternoon 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 $155. Flying to Phoenix Sky Harbor Intl Airport in the afternoon 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 $304. 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 26 weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $196 when searching 26 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 $88 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.

How have Ontario to Phoenix Sky Harbor Intl Airport flight prices changed over time?

As of April 2025, prices for Ontario to Phoenix Sky Harbor Intl Airport flights are approximately 57% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to Phoenix Sky Harbor Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Phoenix Sky Harbor Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$78

Fastest flight time

1h 10m

Direct flights

Every day
The best one-way flight to Phoenix Sky Harbor Intl Airport from Ontario in the past 72 hours is $78. The best round-trip flight deal from Ontario to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $153.
The fastest flight from Ontario to Phoenix Sky Harbor Intl Airport takes 1h 10m
Direct flights go from Ontario to Phoenix Sky Harbor Intl Airport every day.

  • 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 10m.

  • 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?

  • 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?

  • What is the most popular airline from Ontario to Phoenix Sky Harbor Intl Airport?


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
FrontierPriceFrom $38Free CancellationRating
6.0
3,276 reviews
Search Frontier flights
SouthwestPriceFrom $111Free CancellationRating
8.0
4,277 reviews
Search Southwest flights
American AirlinesPriceFrom $129Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Southwest Flights From Ontario to Phoenix Sky Harbor Intl Airport

    Southwest operates around 25 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 $252, but momondo users have found Southwest deals from Ontario to Phoenix Sky Harbor Intl Airport from as low as $111 round-trip. Southwest has been scored 8.0/10 in 4,277 reviews.

  • American Airlines Flights From Ontario to Phoenix Sky Harbor Intl Airport

    American Airlines (7.2/10 from 10,000 reviews) operates around 20 flights from Ontario to Phoenix Sky Harbor Intl Airport in any given week. The average American Airlines airfare for this route is around $272, 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.


Traveling to a place near Phoenix?

Book flights to Phoenix if you plan to visit one of these locations
Scottsdale
Mesa
Tempe
Chandler
Glendale
Gilbert
Surprise
Peoria
Casa Grande
Wickenburg
Apache Junction
Payson
Goodyear
Buckeye
Paradise Valley
Avondale
Camp Verde
Fountain Hills
Cave Creek
Litchfield Park

Why use momondo?

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.


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