What is the cheapest airline that flies from Ontario to Arizona?

Frontier, American Airlines, and Southwest are the most popular carriers operating from Ontario to Arizona

How many flights depart from Ontario to Arizona on average per week?

91 flights are operational weekly from Ontario to Arizona as of August 2025. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.

What airlines fly to Arizona?

Frontier, American Airlines and Southwest are the top three most popular airlines that fly to Arizona from Ontario according to our data. Frontier is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Arizona. Keep in mind that there are 9 different airlines that fly to Arizona on a routine basis, so you have a few additional options to choose from.

How many flights depart from Ontario to Arizona on average per day?

The number of flights available between Ontario and Arizona is 13 per day as of August 2025. The most frequent departure time is 12:00PM, with 57% of daily flights leaving in the afternoon.

When did momondo last update prices for flights from Ontario Airport to Arizona?

Prices for flights from Ontario Airport to Arizona refresh daily.

How many operators does momondo search for flights from Ontario Airport to Arizona?

As of August 2025, there are 4 operators available to choose from for flights from Ontario Airport to Arizona.

How old do you have to be to fly from Ontario Airport to Arizona?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Arizona.

What documentation or ID do you need to fly to Arizona?

The travel and health documents required for your trip to Arizona can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Arizona. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$29 Cheap Flights from Ontario to Arizona in 2025

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Find the cheapest flights from Ontario to Arizona

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:00 am - 9:11 amONT-LAS

1h 11mnonstop

6:10 am - 7:17 amLAS-ONT

1h 07mnonstop

$59Frontier

Find Deal

Wed, Sep 17 - Fri, Sep 19

7:30 pm - 8:42 pmONT-LAS

1h 12mnonstop

8:49 pm - 9:56 pmLAS-ONT

1h 07mnonstop

$61Frontier

Find Deal

Sun, Sep 7 - Tue, Sep 9

5:45 am - 6:50 amONT-LAS

1h 05mnonstop

4:45 pm - 9:00 pmLAS-ONT

4h 15m1 stop

$107Southwest

Find Deal

Tue, Sep 16 - Tue, Sep 23

5:35 pm - 9:50 pmONT-PHX

4h 15m1 stop

3:15 pm - 8:15 pmPHX-ONT

5h 00m1 stop

$116Southwest

Find Deal

Tue, Sep 16 - Wed, Sep 17

4:49 pm - 6:07 pmONT-PHX

1h 18mnonstop

10:38 am - 12:01 pmPHX-ONT

1h 23mnonstop

$198American Airlines

Find Deal

Sun, Oct 26 - Wed, Oct 29

6:10 am - 7:27 amONT-PHX

1h 17mnonstop

4:58 pm - 6:16 pmPHX-ONT

1h 18mnonstop

$200American Airlines

Find Deal

Tue, Sep 23 - Fri, Sep 26

6:00 am - 11:22 amONT-TUS

4h 22m1 stop

6:49 am - 12:34 pmTUS-ONT

6h 45m1 stop

$237Delta

Find Deal

Wed, Dec 31 - Wed, Jan 7

6:00 am - 11:22 amONT-TUS

4h 22m1 stop

12:30 pm - 10:38 pmTUS-ONT

11h 08m2 stops

$242Delta

Find Deal

Wed, Dec 31 - Tue, Jan 6

5:10 am - 12:28 pmONT-TUS

7h 18m1 stop

6:00 am - 12:32 pmTUS-ONT

6h 32m1 stop

$304United Airlines

Find Deal

Sat, Sep 13 - Tue, Sep 16

5:40 am - 1:16 pmONT-TUS

6h 36m1 stop

8:10 am - 12:33 pmTUS-ONT

5h 23m1 stop

$354United Airlines

Find Deal

Fri, Jan 30 - Wed, Feb 4

Frontier flights from Ontario to Arizona

Our best Frontier deals on Ontario to Arizona flight tickets

Frontier

Sep 17

ONT8:00 amOntario

1h 11m

LAS9:11 amLas Vegas Harry Reid Intl

Sep 19

LAS6:10 amLas Vegas Harry Reid Intl

1h 07m

ONT7:17 amOntario

$59

Find similar

Frontier

Sep 7

ONT7:30 pmOntario

1h 12m

LAS8:42 pmLas Vegas Harry Reid Intl

Sep 9

LAS8:49 pmLas Vegas Harry Reid Intl

1h 07m

ONT9:56 pmOntario

$61

Find similar

Frontier

Sep 16

ONT8:00 amOntario

1h 11m

LAS9:11 amLas Vegas Harry Reid Intl

Sep 17

LAS8:49 pmLas Vegas Harry Reid Intl

1h 07m

ONT9:56 pmOntario

$62

Find similar

Southwest flights from Ontario to Arizona

Our best Southwest deals on Ontario to Arizona flight tickets

Southwest

Sep 16

ONT5:45 amOntario

1h 05m

LAS6:50 amLas Vegas Harry Reid Intl

Sep 23

LAS4:45 pmLas Vegas Harry Reid Intl

4h 15m

1 stop

ONT9:00 pmOntario

$107

Find similar

Southwest

Sep 16

ONT5:35 pmOntario

4h 15m

1 stop

PHX9:50 pmPhoenix Sky Harbor Intl

Sep 17

PHX3:15 pmPhoenix Sky Harbor Intl

5h 00m

1 stop

ONT8:15 pmOntario

$116

Find similar

Southwest

Sep 15

ONT8:40 pmOntario

1h 20m

PHX10:00 pmPhoenix Sky Harbor Intl

Sep 23

PHX1:00 pmPhoenix Sky Harbor Intl

7h 20m

1 stop

ONT8:20 pmOntario

$117

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Wed 9/17

8:00 am-9:11 am

Nonstop1h 11m

Las Vegas Harry Reid Intl

Fri 9/19

6:10 am-7:17 am

Nonstop1h 07m

$59

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Sun 9/7

7:30 pm-8:42 pm

Nonstop1h 12m

Las Vegas Harry Reid Intl

Tue 9/9

8:49 pm-9:56 pm

Nonstop1h 07m

$61

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Tue 9/16

5:45 am-6:50 am

Nonstop1h 05m

Las Vegas Harry Reid Intl

Tue 9/23

4:45 pm-9:00 pm

1 stop4h 15m

$107

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 9/16

5:35 pm-9:50 pm

1 stop4h 15m

Phoenix Sky Harbor Intl

Wed 9/17

3:15 pm-8:15 pm

1 stop5h 00m

$116

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sun 10/26

4:49 pm-6:07 pm

Nonstop1h 18m

Phoenix Sky Harbor Intl

Wed 10/29

10:38 am-12:01 pm

Nonstop1h 23m

$198

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 9/23

6:10 am-7:27 am

Nonstop1h 17m

Phoenix Sky Harbor Intl

Fri 9/26

4:58 pm-6:16 pm

Nonstop1h 18m

$200

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Wed 12/31

6:00 am-11:22 am

1 stop4h 22m

Tucson

Wed 1/7

6:49 am-12:34 pm

1 stop6h 45m

$237

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Wed 12/31

6:00 am-11:22 am

1 stop4h 22m

Tucson

Tue 1/6

12:30 pm-10:38 pm

2 stops11h 08m

$242

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Sat 9/13

5:10 am-12:28 pm

1 stop7h 18m

Tucson

Tue 9/16

6:00 am-12:32 pm

1 stop6h 32m

$304

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Fri 1/30

5:40 am-1:16 pm

1 stop6h 36m

Tucson

Wed 2/4

8:10 am-12:33 pm

1 stop5h 23m

$354

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How to get the cheapest flight ticket from Ontario to Arizona

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

Prices

Airlines

Other information

What is the cheapest month to fly to Arizona?

The month of August is, on average, the cheapest month to fly to Arizona from Ontario, with most prices found around $198. If you aren’t able to travel to Arizona during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $216.

What is the cheapest day to depart on your flight to Arizona?

On average, the least expensive day to fly to Arizona from Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $390. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Arizona is Sunday, with ticket prices averaging around $486.

What is the cheapest time of day to depart on your flight to Arizona?

Our most recent data shows that the best time of day to fly to Arizona is at noon. Flights from Ontario to Arizona during this time can be as low as $383. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $415 on average. Flights to Arizona from Ontario in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Ontario to Arizona flight route?

Fly from Ontario to Phoenix Sky Harbor Intl for the best Ontario - Arizona flight prices

How far in advance should I book a flight to Arizona?

You are more likely to see cheaper flights to Arizona from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Arizona for around $252 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Arizona from Ontario for as low as $164 on momondo.

What cabin class options are available on Ontario to Arizona flights?

There are 4 cabin classes available to choose from on Ontario to Arizona flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Ontario to Arizona flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Arizona

Best Price Found	$29
Fastest flight time	1h 00m
Direct flights	Every day
Airports in Arizona	2 airports

The best one-way flight to Arizona from Ontario in the past 72 hours is $29. The best round-trip flight deal from Ontario to Arizona found on momondo in the last 72 hours is $59.

The fastest flight from Ontario to Arizona takes 1h 00m

Direct flights go from Ontario to Arizona every day.

There are 2 airports near Arizona: Phoenix Sky Harbor Intl (PHX), Las Vegas Harry Reid Intl (LAS)

Search flight deals

When did momondo last update prices for flights from Ontario Airport to Arizona?
Prices for flights from Ontario Airport to Arizona refresh daily.
How many operators does momondo search for flights from Ontario Airport to Arizona?
As of August 2025, there are 4 operators available to choose from for flights from Ontario Airport to Arizona.
How old do you have to be to fly from Ontario Airport to Arizona?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Arizona.
What documentation or ID do you need to fly to Arizona?
The travel and health documents required for your trip to Arizona can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Arizona. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Ontario to Arizona?
momondo data reveals that the most frequently booked plane model on the route from Ontario to Arizona is Airbus A321-100/200, representing 10.88% of all bookings. The subsequent popular models are Airbus A321neo at 9.01%, Boeing 737-800 Passenger/BBJ2 (winglets) at 8.50%, and Embraer 175 at 8.00%.

Best airlines flying from Ontario to Arizona

Compare and see reviews for airlines that fly from Ontario to Arizona with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $45	Free Cancellation	Rating 5.8 3,212 reviews	Search Frontier flights
Southwest	PriceFrom $110	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
American Airlines	PriceFrom $133	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Arizona?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Arizona. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Arizona with flexible booking policies on momondo?

Flights from Ontario to Arizona with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Arizona?

Once all potential Ontario to Arizona flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Arizona right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Arizona, momondo offers a useful price alert feature which will track prices for flights to Arizona from Ontario and alert you when they change.

An easier way to manage your Arizona trip

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Popular cities in Arizona

Flights to New Yorkfrom $47

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Cheap flights from Ontario to Arizona from $29

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 Arizona departing on 11/7. 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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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Ontario to Arizona

Cheap round-trip flights

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Cheap last minute flights

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Frontier flights from Ontario to Arizona

Our best Frontier deals on Ontario to Arizona flight tickets

Southwest flights from Ontario to Arizona

Our best Southwest deals on Ontario to Arizona flight tickets

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Use the filters below to find and compare flights from Ontario to Arizona that are best for you.

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How to get the cheapest flight ticket from Ontario to Arizona

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 Arizona?

What is the cheapest day to depart on your flight to Arizona?

What is the cheapest time of day to depart on your flight to Arizona?

What is the cheapest Ontario to Arizona flight route?

Fly from Ontario to Phoenix Sky Harbor Intl for the best Ontario - Arizona flight prices

How far in advance should I book a flight to Arizona?

What cabin class options are available on Ontario to Arizona flights?

There are 4 cabin classes available to choose from on Ontario to Arizona 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 Ontario to Arizona?

Frontier, American Airlines, and Southwest are the most popular carriers operating from Ontario to Arizona

What airlines fly to Arizona?

How many flights depart from Ontario to Arizona on average per day?

The number of flights available between Ontario and Arizona is 13 per day as of August 2025. The most frequent departure time is 12:00PM, with 57% of daily flights leaving in the afternoon.

How many flights depart from Ontario to Arizona on average per week?

91 flights are operational weekly from Ontario to Arizona as of August 2025. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.

Cheap Ontario to Arizona flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Arizona

Best Price Found

Fastest flight time

Direct flights

Airports in Arizona

When did momondo last update prices for flights from Ontario Airport to Arizona?

How many operators does momondo search for flights from Ontario Airport to Arizona?

How old do you have to be to fly from Ontario Airport to Arizona?

What documentation or ID do you need to fly to Arizona?

What is the most popular plane model from Ontario to Arizona?

Best airlines flying from Ontario to Arizona

Compare and see reviews for airlines that fly from Ontario to Arizona with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Arizona?

Can I find flights from Ontario to Arizona with flexible booking policies on momondo?

How can momondo help me find flights from Ontario to Arizona?

I’m not ready to book a flight from Ontario to Arizona right now. Can momondo alert me if prices change?

An easier way to manage your Arizona trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Arizona

Popular cities in Arizona

Popular flights according to clicks in the last 7 days on momondo