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Tempe

$46+ Cheap flights from Ontario (ONT) to Tempe, AZ

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHX
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Tempe are usually found in September or August, booked 71 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Ontario to Tempe

Cheapest flights from Ontario to Tempe
Explore the most affordable flight options available from Ontario to Tempe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 19, 2026.

This American Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:19 pm
ONT
-
PHX
Nonstop1h 21m
American Airlines
Thu 5/77:17 am
PHX
-
ONT
Nonstop1h 22m
American Airlines
Deal found 2/17$144
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/163:30 pm
ONT
-
PHX
1 stop8h 29m
Frontier
Mon 3/238:27 pm
PHX
-
ONT
1 stop17h 01m
Frontier
Deal found 2/16$145
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/810:03 pm
ONT
-
PHX
1 stop9h 32m
Frontier
Fri 4/179:24 pm
PHX
-
ONT
1 stop26h 31m
Frontier
Deal found 2/16$146
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/99:40 pm
ONT
-
PHX
2 stops14h 14m
Frontier
Wed 3/1111:33 am
PHX
-
ONT
1 stop9h 30m
Frontier
Deal found 2/18$147
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:15 am
ONT
-
PHX
Nonstop1h 23m
American Airlines
Tue 3/317:27 am
PHX
-
ONT
Nonstop1h 24m
American Airlines
Deal found 2/16$149
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/282:23 pm
ONT
-
PHX
1 stop5h 55m
Frontier
Mon 3/306:39 pm
PHX
-
ONT
1 stop18h 49m
Frontier
Deal found 2/15$151
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1212:59 am
ONT
-
PHX
1 stop10h 47m
Frontier
Sat 5/161:00 pm
PHX
-
ONT
1 stop5h 23m
Frontier
Deal found 2/18$152
This Southwest deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1310:30 am
ONT
-
PHX
Nonstop1h 15m
Southwest
Sat 5/163:20 pm
PHX
-
ONT
1 stop6h 00m
Southwest
Deal found 2/18$154
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/172:23 pm
ONT
-
PHX
1 stop5h 55m
Frontier
Sat 3/286:07 pm
PHX
-
ONT
2 stops37h 59m
Frontier
Deal found 2/17$155
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/198:59 pm
ONT
-
PHX
1 stop13h 09m
Frontier
Sat 4/259:52 am
PHX
-
ONT
1 stop14h 03m
Frontier
Deal found 2/16$157
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/192:06 pm
ONT
-
PHX
1 stop9h 53m
Frontier
Mon 3/238:27 pm
PHX
-
ONT
1 stop17h 01m
Frontier
Deal found 2/17$158
This Southwest deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/712:30 pm
ONT
-
PHX
2 stops5h 05m
Southwest
Sat 4/117:50 am
PHX
-
ONT
1 stop4h 30m
Southwest
Deal found 2/15$159

Find flight deals from Ontario to Tempe

Keep the following information in mind while searching for Ontario to Tempe flight deals. Data was last updated February 19, 2026.

Round-trip from

$144
(American Airlines)

One-way from

$46
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$302
From Ontario to Tempe
Search Deals
One-way flight from Ontario to Tempe
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Tempe 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, Cheapflights users made 2,558,603 searches. Data last updated February 19, 2026.
Use the filters below to find and compare flights from Ontario to Tempe that are best for you.

Fly from

Ontario

Fly to

Tempe

Route

Depart

Return

Price

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 5/13

2:25 pm-3:40 pm

Nonstop1h 15m

Phoenix Sky Harbor Intl

Sat 5/16

7:50 am-12:20 pm

1 stop4h 30m

$154

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 4/22

12:40 pm-2:00 pm

Nonstop1h 20m

Phoenix Sky Harbor Intl

Sat 4/25

1:55 pm-5:40 pm

1 stop3h 45m

$154

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 4/7

12:30 pm-5:35 pm

2 stops5h 05m

Phoenix Sky Harbor Intl

Sat 4/11

7:50 am-12:20 pm

1 stop4h 30m

$159

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 4/16

6:15 am-3:38 pm

1 stop9h 23m

Phoenix Sky Harbor Intl

Fri 4/17

6:45 pm-11:55 pm

1 stop5h 10m

$160

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 5/6

12:59 am-7:36 am

1 stop6h 37m

Phoenix Sky Harbor Intl

Sun 5/10

9:24 pm-7:31 am

1 stop10h 07m

$160

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 3/18

2:23 pm-10:33 am

1 stop20h 10m

Phoenix Sky Harbor Intl

Wed 3/25

4:27 pm-9:03 pm

1 stop4h 36m

$167

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 3/18

5:02 pm-6:25 pm

Nonstop1h 23m

Phoenix Sky Harbor Intl

Tue 3/31

3:02 pm-4:22 pm

Nonstop1h 20m

$171

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Mon 3/30

3:05 pm-4:25 pm

Nonstop1h 20m

Phoenix Sky Harbor Intl

Thu 4/2

11:20 am-12:40 pm

Nonstop1h 20m

$171

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 3/28

4:35 pm-10:35 pm

1 stop6h 00m

Phoenix Sky Harbor Intl

Mon 3/30

9:10 pm-10:25 pm

Nonstop1h 15m

$181

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 4/8

2:25 pm-3:40 pm

Nonstop1h 15m

$49

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/15

Showing 1-10 of 19 results
1
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Best time to book a flight from Ontario to Tempe

Have a flexible travel schedule? Discover the best time to fly to Tempe from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Tempe

How far ahead should I book a flight from Ontario to Tempe?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Tempe. Price data was last updated on February 18, 2026.

To ensure you get the cheapest price possible for a flight from Ontario to Tempe, you should look to book at least 71 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Ontario to Tempe?

Currently, April is the cheapest month in which you can book a flight from Ontario to Tempe (average of $26). Flying from Ontario to Tempe in July is currently the most expensive (average of $82). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to TM9?

Find hourly flight availability from Ontario to Tempe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 19, 2026.

One of the essential ways to save on airfare from Ontario to Tempe is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 14% on airfare.

What is the cheapest day to fly from Ontario to Tempe?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Tempe. Price data was last updated on February 17, 2026.

Travelers seeking maximum savings on their Ontario to Tempe flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Ontario to Tempe

Explore weekly flight availability from Ontario to Tempe. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 19, 2026.

The most flights from ONT to TM9 are scheduled on a Thursday (15 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (6 on average).

Reviews of airlines servicing Tempe

Get insights into the airlines that provide service to Tempe. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Tempe. Reviews last updated February 19, 2026.
Get a feel of what it's like to fly with Southwest, American Airlines, and Frontier from Ontario to Tempe by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,295 reviews

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,313 reviews
Southwest
8.0
Very good
4,295 reviews

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.7
Fair
3,048 reviews
Southwest
8.0
Very good
4,295 reviews

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Tempe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Tempe?

    If you book a flight to Tempe from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 9 flights from Ontario to Tempe per day from 3 different airlines.

  • How long is the flight from Ontario to Tempe?

    A quick flight from Ontario to Tempe can take about 1h 15m. Southwest provides one of the quickest options available for as low as $154. The distance between Ontario and Tempe is about 324 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Ontario to Tempe one-way?

    The cheapest airlines for a one-way flight from Ontario to Tempe are Southwest ($48), Frontier ($58), and American Airlines ($63).

  • What are the most reliable airlines from Ontario to Tempe?

    Consider Porter Airlines (87%), British Airways (85%) or Southwest (83%) when booking your flight. These represent the most reliable airlines when flying from Ontario to Tempe.

  • What are the cheapest flights from Ontario to Tempe?

    While on average a flight from Ontario to Tempe is generally $912, our data shows the cheapest flight currently is $102. When looking at the most popular route, (Ontario - Phoenix Sky Harbor Intl), you can expect to pay $117 for that flight.

  • Can I find deals for flights from Ontario to Tempe that include hotel bookings?

    Yes. In addition to deals on Ontario to Tempe flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Tempe?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Tempe.

  • Can I find deals for business class flights from Ontario to Tempe?

    Yes. Cheapflights offers flight deals from Ontario to Tempe by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Tempe?

    Currently, April is the cheapest month in which you can book a flight from Ontario to Tempe (average of $26). Flying from Ontario to Tempe in July is currently the most expensive (average of $82). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ontario to Tempe

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Top 3 airlines flying from Ontario to Tempe

Discover the top 3 airlines that operate flights from Ontario to Tempe. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$72Average$163FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$97Average$258FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$122Average$305FlexibilityNo cancel feeOn-time71%

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