What airlines fly to Phoenix?

Frontier, Southwest and American Airlines are the top three most popular airlines that fly to Phoenix from Ontario according to our data. Frontier is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Phoenix. Keep in mind that there are 8 different airlines that fly to Phoenix on a routine basis, so you have a few additional options to choose from.

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

As of August 2026, 6 flights take off from Ontario and land in Phoenix each day. The most common flight departure time for this route is 12:00PM, with 65% of daily flights taking off in the afternoon.

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

The number of flights available between Ontario and Phoenix is 45 per week as of August 2026. The most frequent departure day is Mon, with 22% of weekly flights leaving on this day.

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

Southwest and United Airlines are the most popular carriers operating from Ontario to Phoenix

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

Prices for flights from Ontario Airport to Phoenix are updated daily.

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

As of August 2026, there are 4 operators available to choose from for flights from Ontario Airport to Phoenix.

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

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.

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

The travel and health documents you'll need for your trip to Phoenix 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$58 Cheap Flights from Ontario to Phoenix in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Phoenix

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:27 am - 8:47 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 20mnonstop

9:45 pm - 10:01 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 16mnonstop

$117American Airlines

Sat, Feb 6 - Sat, Feb 6

4:29 pm - 5:52 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 23mnonstop

10:46 am - 12:14 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 28mnonstop

$117American Airlines

Tue, Oct 27 - Wed, Oct 28

5:30 am - 6:45 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 15mnonstop

10:35 pm - 11:45 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 10mnonstop

$117Southwest

Sat, Oct 24 - Mon, Oct 26

8:35 am - 9:55 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 20mnonstop

7:45 pm - 9:00 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 15mnonstop

$117Southwest

Tue, Sep 15 - Tue, Sep 22

1:04 pm - 2:25 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 21mnonstop

9:26 pm - 10:43 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 17mnonstop

$117American Airlines

Wed, Sep 30 - Thu, Oct 1

5:15 am - 6:30 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 15mnonstop

10:40 pm - 11:50 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 10mnonstop

$117Southwest

Thu, Sep 24 - Thu, Oct 1

8:00 am - 12:22 pmONT Ontario-PHX Phoenix Sky Harbor Intl

4h 22m1 stop Las Vegas Harry Reid Intl

6:30 am - 4:46 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

10h 16m1 stop Dallas/Fort Worth

$118Frontier

Thu, Sep 17 - Tue, Sep 22

5:25 pm - 11:18 pmONT Ontario-PHX Phoenix Sky Harbor Intl

5h 53m1 stop Las Vegas Harry Reid Intl

7:30 am - 4:21 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

8h 51m1 stop Las Vegas Harry Reid Intl

$118Frontier

Sat, Oct 24 - Tue, Oct 27

6:00 am - 11:11 amONT Ontario-PHX Phoenix Sky Harbor Intl

4h 11m1 stop San Francisco

6:00 am - 12:20 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

7h 20m1 stop San Francisco

$171United Airlines

Fri, Dec 11 - Mon, Dec 14

1:33 pm - 7:31 pmONT Ontario-PHX Phoenix Sky Harbor Intl

4h 58m1 stop San Francisco

8:07 am - 12:20 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

5h 13m1 stop San Francisco

$171United Airlines

Tue, Jan 5 - Fri, Jan 8

Cheap last minute flights

Enter your travel dates to find the best prices.

3:40 pm - 11:24 pmONT Ontario-PHX Phoenix Sky Harbor Intl

7h 44m1 stop Las Vegas Harry Reid Intl

4:48 pm - 11:50 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

7h 02m1 stop Denver Intl

$290Frontier

Mon, Aug 31 - Tue, Sep 8

3:40 pm - 11:24 pmONT Ontario-PHX Phoenix Sky Harbor Intl

7h 44m1 stop Las Vegas Harry Reid Intl

2:15 pm - 11:50 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

9h 35m1 stop Denver Intl

$300Frontier

Sat, Aug 29 - Tue, Sep 1

10:49 am - 9:28 pmONT Ontario-PHX Phoenix Sky Harbor Intl

10h 39m1 stop Denver Intl

10:30 pm - 8:03 amPHX Phoenix Sky Harbor Intl-ONT Ontario

9h 33m1 stop Las Vegas Harry Reid Intl

$320Frontier

Mon, Aug 31 - Fri, Sep 4

10:15 am - 11:30 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 15mnonstop

4:10 pm - 5:20 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 10mnonstop

$447Southwest

Sat, Aug 29 - Sat, Aug 29

3:15 pm - 4:35 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 20mnonstop

12:55 pm - 2:05 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 10mnonstop

$447Southwest

Sat, Aug 29 - Tue, Sep 1

4:50 pm - 6:10 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 20mnonstop

12:15 pm - 1:25 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 10mnonstop

$456Southwest

Fri, Aug 28 - Fri, Sep 4

4:07 pm - 5:38 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 31mnonstop

5:02 pm - 6:15 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 13mnonstop

$463American Airlines

Fri, Aug 28 - Sat, Aug 29

6:15 am - 7:38 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 23mnonstop

10:45 am - 12:03 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 18mnonstop

$463American Airlines

Sat, Aug 29 - Sun, Aug 30

6:08 am - 10:26 amONT Ontario-PHX Phoenix Sky Harbor Intl

4h 18m1 stop San Francisco

1:12 pm - 6:11 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

4h 59m1 stop San Francisco

$493United Airlines

Thu, Aug 27 - Thu, Aug 27

8:48 am - 9:09 pmONT Ontario-PHX Phoenix Sky Harbor Intl

12h 21m1 stop San Francisco

1:55 pm - 11:50 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

33h 55m2 stops Vernal Regional Denver Intl

$505Multiple Airlines

Mon, Aug 31 - Thu, Sep 3

Cheap direct flights

Enter your travel dates to find the best prices.

6:27 am - 8:47 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 20mnonstop

9:45 pm - 10:01 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 16mnonstop

$117American Airlines

Sat, Feb 6 - Sat, Feb 6

4:29 pm - 5:52 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 23mnonstop

10:46 am - 12:14 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 28mnonstop

$117American Airlines

Tue, Oct 27 - Wed, Oct 28

5:30 am - 6:45 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 15mnonstop

10:35 pm - 11:45 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 10mnonstop

$117Southwest

Sat, Oct 24 - Mon, Oct 26

8:35 am - 9:55 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 20mnonstop

7:45 pm - 9:00 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 15mnonstop

$117Southwest

Tue, Sep 15 - Tue, Sep 22

1:04 pm - 2:25 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 21mnonstop

9:26 pm - 10:43 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 17mnonstop

$117American Airlines

Wed, Sep 30 - Thu, Oct 1

1:05 pm - 2:26 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 21mnonstop

7:45 am - 9:10 amPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 25mnonstop

$117American Airlines

Thu, Oct 22 - Sat, Oct 24

6:30 am - 8:58 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 28mnonstop

8:15 am - 8:39 amPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 24mnonstop

$117American Airlines

Thu, Nov 12 - Mon, Nov 16

5:15 am - 6:30 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 15mnonstop

10:40 pm - 11:50 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 10mnonstop

$117Southwest

Thu, Sep 24 - Thu, Oct 1

3:15 pm - 4:35 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 20mnonstop

7:30 pm - 8:45 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 15mnonstop

$117Southwest

Sat, Sep 19 - Mon, Sep 21

1:05 pm - 2:20 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 15mnonstop

7:45 am - 9:00 amPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 15mnonstop

$117Southwest

Thu, Oct 1 - Sat, Oct 3

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Southwest flights from Ontario to Phoenix

Our best Southwest deals on Ontario to Phoenix flight tickets

Southwest

Oct 27

ONT6:10 amOntario

1h 15m

PHX7:25 amPhoenix Sky Harbor Intl

Oct 31

PHX8:30 amPhoenix Sky Harbor Intl

1h 25m

ONT9:55 amOntario

$117

Southwest

Sep 19

ONT5:40 amOntario

5h 30m

1 stop

PHX11:10 amPhoenix Sky Harbor Intl

Sep 21

PHX8:55 pmPhoenix Sky Harbor Intl

1h 10m

ONT10:05 pmOntario

$127

Southwest

Sep 18

ONT8:40 pmOntario

1h 20m

PHX10:00 pmPhoenix Sky Harbor Intl

Sep 21

PHX8:55 pmPhoenix Sky Harbor Intl

1h 10m

ONT10:05 pmOntario

$134

Frontier flights from Ontario to Phoenix

Our best Frontier deals on Ontario to Phoenix flight tickets

Frontier

Oct 27

ONT10:35 amOntario

6h 51m

1 stop

PHX5:26 pmPhoenix Sky Harbor Intl

Oct 29

PHX7:30 amPhoenix Sky Harbor Intl

3h 46m

1 stop

ONT11:16 amOntario

$118

Frontier

Sep 19

ONT2:30 pmOntario

8h 17m

1 stop

PHX10:47 pmPhoenix Sky Harbor Intl

Sep 21

PHX8:00 amPhoenix Sky Harbor Intl

3h 22m

1 stop

ONT11:22 amOntario

$119

Frontier

Sep 19

ONT11:45 amOntario

8h 06m

1 stop

PHX7:51 pmPhoenix Sky Harbor Intl

Sep 26

PHX3:21 pmPhoenix Sky Harbor Intl

8h 26m

1 stop

ONT11:47 pmOntario

$120

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Sat 2/6

6:27 am-8:47 am

Nonstop1h 20m

Phoenix Sky Harbor Intl

Sat 2/6

9:45 pm-10:01 pm

Nonstop1h 16m

$117

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Tue 10/27

4:29 pm-5:52 pm

Nonstop1h 23m

Phoenix Sky Harbor Intl

Wed 10/28

10:46 am-12:14 pm

Nonstop1h 28m

$117

Quickest round-trip

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Sat 10/24

5:30 am-6:45 am

Nonstop1h 15m

Phoenix Sky Harbor Intl

Mon 10/26

10:35 pm-11:45 pm

Nonstop1h 10m

$117

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Tue 9/15

8:35 am-9:55 am

Nonstop1h 20m

Phoenix Sky Harbor Intl

Tue 9/22

7:45 pm-9:00 pm

Nonstop1h 15m

$117

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Wed 9/30

1:04 pm-2:25 pm

Nonstop1h 21m

Phoenix Sky Harbor Intl

Thu 10/1

9:26 pm-10:43 pm

Nonstop1h 17m

$117

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Thu 9/24

5:15 am-6:30 am

Nonstop1h 15m

Phoenix Sky Harbor Intl

Thu 10/1

10:40 pm-11:50 pm

Nonstop1h 10m

$117

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Thu 9/17

8:00 am-12:22 pm

1 stop4h 22m

Phoenix Sky Harbor Intl

Tue 9/22

6:30 am-4:46 pm

1 stop10h 16m

$118

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Sat 10/24

5:25 pm-11:18 pm

1 stop5h 53m

Phoenix Sky Harbor Intl

Tue 10/27

7:30 am-4:21 pm

1 stop8h 51m

$118

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Fri 12/11

6:00 am-11:11 am

1 stop4h 11m

Phoenix Sky Harbor Intl

Mon 12/14

6:00 am-12:20 pm

1 stop7h 20m

$171

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Tue 1/5

1:33 pm-7:31 pm

1 stop4h 58m

Phoenix Sky Harbor Intl

Fri 1/8

8:07 am-12:20 pm

1 stop5h 13m

$171

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Phoenix

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 typical price of a round-trip flight between Ontario and Phoenix?

Prices are currently low for flights on this route.

Typical prices usually range from $170 to $378.
The lowest price recently found on this route was $117.

What is the cheapest month to fly to Phoenix?

If you are unable to visit Phoenix during the month of September, then departing from Ontario during the month October is also very affordable. Most momondo users find prices during this month for around $227.

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

On average, the least expensive day to fly to Phoenix from Ontario is on a Friday. momondo users have found tickets for Friday departures for as low as $249. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $328.

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

The cheapest time of day to fly to Phoenix is at noon when flights can be purchased for as low as $206. In the morning is when there is more demand to fly to Phoenix, so prices are often more expensive at around $302 per ticket.

What is the cheapest Ontario to Phoenix flight route?

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

How far in advance should I book a flight from Ontario to Phoenix?

You are more likely to see cheaper flights to Phoenix from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix for around $294 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix from Ontario for as low as $201 on momondo.

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

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

Cheap Ontario to Phoenix flight deals and tips

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

Best Price Found	$58
Fastest flight time	1h 15m
Direct flights	Every day
Airports in Phoenix	3 airports

The best one-way flight to Phoenix from Ontario in the past 72 hours is $58. The best round-trip flight deal from Ontario to Phoenix found on momondo in the last 72 hours is $117.

The fastest flight from Ontario to Phoenix takes 1h 15m

Direct flights go from Ontario to Phoenix every day.

There are 3 airports in Phoenix. From Ontario there are direct flights to Phoenix Sky Harbor Intl (PHX).

Search flight deals

Frequently asked questions about flying from Ontario to Phoenix

How far is Ontario to Phoenix by plane?
The straight-line distance from Ontario to Phoenix is 322.9 mi. By plane, this route typically takes 1h 15m.
When did momondo last update prices for flights from Ontario Airport to Phoenix?
Prices for flights from Ontario Airport to Phoenix are updated daily.
How many operators does momondo search for flights from Ontario Airport to Phoenix?
As of August 2026, there are 4 operators available to choose from for flights from Ontario Airport to Phoenix.
How old do you have to be to fly from Ontario Airport to Phoenix?
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.
What documentation or ID do you need to fly to Phoenix?
The travel and health documents you'll need for your trip to Phoenix 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ontario to Phoenix

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $72	Free Cancellation	Rating 5.6 2,647 reviews	Search Frontier flights
Southwest	PriceFrom $120	Free Cancellation	Rating 8.0 4,204 reviews	Search Southwest flights
American Airlines	PriceFrom $137	Free Cancellation	Rating 7.1 11,995 reviews	Search American Airlines flights
JetBlue	PriceFrom $228	Free Cancellation	Rating 7.1 3,037 reviews	Search JetBlue flights

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?

Flights from Ontario to Phoenix 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 Phoenix?

Once all potential Ontario to Phoenix 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 Phoenix right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Phoenix flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Fly into one of these airports located in Phoenix

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Cheap flights from Ontario to Phoenix from $58

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 9/23. 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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Southwest flights from Ontario to Phoenix

Our best Southwest deals on Ontario to Phoenix flight tickets

Frontier flights from Ontario to Phoenix

Our best Frontier deals on Ontario to Phoenix flight tickets

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How to get the cheapest flight ticket from Ontario to Phoenix

What is the typical price of a round-trip flight between Ontario and Phoenix?

What is the cheapest month to fly to Phoenix?

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

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

What is the cheapest Ontario to Phoenix flight route?

How far in advance should I book a flight from Ontario to Phoenix?

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

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

What airlines fly to Phoenix?

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

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

Cheap Ontario to Phoenix flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Phoenix

Frequently asked questions about flying from Ontario to Phoenix

Best airlines flying from Ontario to Phoenix

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

Why use momondo?

An easier way to manage your Phoenix 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 the United States

Fly into one of these airports located in Phoenix

Airports listed have a maximum distance of 25.4 mi from Phoenix

Fly your favorite airline to Phoenix

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Popular cities in the United States

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

Fly to other destinations from Ontario

According to popular flight searches on momondo this year

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