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Cheap flights from Ontario to Phoenix 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 Ontario to Phoenix departing on 10/15. 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

Southwest Logo
8:50 am - 10:05 amONT-PHX
1h 15mnonstop
Southwest Logo
8:55 pm - 10:05 pmPHX-ONT
1h 10mnonstop
$97Southwest
Find Deal
mar., oct. 7 - mar., oct. 14
American Airlines Logo
10:06 am - 11:27 amONT-PHX
1h 21mnonstop
American Airlines Logo
7:41 am - 8:56 amPHX-ONT
1h 15mnonstop
$98American Airlines
Find Deal
sáb., oct. 25 - lun., oct. 27
Southwest Logo
5:45 pm - 9:15 pmONT-PHX
3h 30m1 stop
Southwest Logo
11:05 am - 12:20 pmPHX-ONT
1h 15mnonstop
$107Southwest
Find Deal
mar., oct. 7 - mar., oct. 14
Southwest Logo
1:50 pm - 3:05 pmONT-PHX
1h 15mnonstop
Southwest Logo
8:10 am - 1:45 pmPHX-ONT
5h 35m2 stops
$112Southwest
Find Deal
sáb., oct. 18 - mar., oct. 21
Southwest Logo
3:50 pm - 8:10 pmONT-PHX
4h 20m1 stop
Southwest Logo
7:25 am - 10:35 amPHX-ONT
3h 10m1 stop
$117Southwest
Find Deal
mar., oct. 7 - mié., oct. 8
Southwest Logo
9:10 am - 3:15 pmONT-PHX
6h 05m2 stops
Southwest Logo
5:25 am - 9:40 amPHX-ONT
5h 15m1 stop
$122Southwest
Find Deal
sáb., nov. 1 - lun., nov. 3
American Airlines Logo
4:49 pm - 6:07 pmONT-PHX
1h 18mnonstop
American Airlines Logo
10:38 am - 12:01 pmPHX-ONT
1h 23mnonstop
$134American Airlines
Find Deal
vie., oct. 17 - sáb., oct. 18
Frontier Logo
8:00 am - 12:23 pmONT-PHX
4h 23m1 stop
Frontier Logo
4:14 pm - 11:50 pmPHX-ONT
7h 36m1 stop
$139Frontier
Find Deal
sáb., oct. 11 - sáb., oct. 11
Frontier Logo
6:00 am - 9:17 amONT-PHX
3h 17m1 stop
Frontier Logo
9:35 am - 12:51 pmPHX-ONT
4h 16m1 stop
$143Frontier
Find Deal
jue., oct. 30 - dom., nov. 2
Southwest Logo
5:55 pm - 7:15 pmONT-PHX
1h 20mnonstop
Southwest Logo
2:15 pm - 6:35 pmPHX-ONT
4h 20m1 stop
$144Southwest
Find Deal
jue., oct. 16 - sáb., oct. 18

Southwest flights from Ontario to Phoenix

Our best Southwest deals on Ontario to Phoenix flight tickets
Southwest
Oct 7
ONT8:50 amOntario
1h 15m
PHX10:05 amPhoenix Sky Harbor Intl
Oct 14
PHX8:55 pmPhoenix Sky Harbor Intl
1h 10m
ONT10:05 pmOntario
$97
Find similar
Southwest
Oct 7
ONT5:45 pmOntario
3h 30m
1 stop
PHX9:15 pmPhoenix Sky Harbor Intl
Oct 14
PHX11:05 amPhoenix Sky Harbor Intl
1h 15m
ONT12:20 pmOntario
$107
Find similar
Southwest
Oct 18
ONT1:50 pmOntario
1h 15m
PHX3:05 pmPhoenix Sky Harbor Intl
Oct 21
PHX8:10 amPhoenix Sky Harbor Intl
5h 35m
2 stops
ONT1:45 pmOntario
$112
Find similar

American Airlines flights from Ontario to Phoenix

Our best American Airlines deals on Ontario to Phoenix flight tickets
American Airlines
Oct 25
ONT10:06 amOntario
1h 21m
PHX11:27 amPhoenix Sky Harbor Intl
Oct 27
PHX7:41 amPhoenix Sky Harbor Intl
1h 15m
ONT8:56 amOntario
$98
Find similar
American Airlines
Oct 17
ONT4:49 pmOntario
1h 18m
PHX6:07 pmPhoenix Sky Harbor Intl
Oct 18
PHX10:38 amPhoenix Sky Harbor Intl
1h 23m
ONT12:01 pmOntario
$134
Find similar
American Airlines
Oct 20
ONT4:49 pmOntario
1h 18m
PHX6:07 pmPhoenix Sky Harbor Intl
Oct 23
PHX2:46 pmPhoenix Sky Harbor Intl
1h 14m
ONT4:00 pmOntario
$157
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Phoenix that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated septiembre 17, 2025.
Use the filters below to find and compare flights from Ontario to Phoenix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

mar. 10/7

8:50 am-10:05 am

Nonstop1h 15m

Phoenix Sky Harbor Intl

mar. 10/14

8:55 pm-10:05 pm

Nonstop1h 10m

$97

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

sáb. 10/25

10:06 am-11:27 am

Nonstop1h 21m

Phoenix Sky Harbor Intl

lun. 10/27

7:41 am-8:56 am

Nonstop1h 15m

$98

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

mar. 10/7

5:45 pm-9:15 pm

1 stop3h 30m

Phoenix Sky Harbor Intl

mar. 10/14

11:05 am-12:20 pm

Nonstop1h 15m

$107

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

sáb. 10/18

1:50 pm-3:05 pm

Nonstop1h 15m

Phoenix Sky Harbor Intl

mar. 10/21

8:10 am-1:45 pm

2 stops5h 35m

$112

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

mar. 10/7

3:50 pm-8:10 pm

1 stop4h 20m

Phoenix Sky Harbor Intl

mié. 10/8

7:25 am-10:35 am

1 stop3h 10m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

sáb. 11/1

9:10 am-3:15 pm

2 stops6h 05m

Phoenix Sky Harbor Intl

lun. 11/3

5:25 am-9:40 am

1 stop5h 15m

$122

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

vie. 10/17

4:49 pm-6:07 pm

Nonstop1h 18m

Phoenix Sky Harbor Intl

sáb. 10/18

10:38 am-12:01 pm

Nonstop1h 23m

$134

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

sáb. 10/11

8:00 am-12:23 pm

1 stop4h 23m

Phoenix Sky Harbor Intl

sáb. 10/11

4:14 pm-11:50 pm

1 stop7h 36m

$139

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

jue. 10/30

6:00 am-9:17 am

1 stop3h 17m

Phoenix Sky Harbor Intl

dom. 11/2

9:35 am-12:51 pm

1 stop4h 16m

$143

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

jue. 10/16

5:55 pm-7:15 pm

Nonstop1h 20m

Phoenix Sky Harbor Intl

sáb. 10/18

2:15 pm-6:35 pm

1 stop4h 20m

$144

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Phoenix from

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

What is the cheapest month to fly to Phoenix?

If you are unable to visit Phoenix during the month of August, then departing from Ontario during the month September is also very affordable. Most momondo users find prices during this month for around $220.

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 $199. 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 $295.

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 $168. In the morning is when there is more demand to fly to Phoenix, so prices are often more expensive at around $283 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 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 $251 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 $156 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

Fastest flight time

1h 10m

Direct flights

Every day

Airports in Phoenix

1 airport
The fastest flight from Ontario to Phoenix takes 1h 10m
Direct flights go from Ontario to Phoenix every day.
There is 1 airport near Phoenix: Phoenix Sky Harbor Intl (PHX)
Search flight deals

  • 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?

  • 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
FrontierPriceFrom $61Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
SouthwestPriceFrom $102Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $124Free CancellationRating
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 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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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
Phoenix-Mesa Gateway Airport