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Ontario

$59+ Cheap flights from Tempe, AZ to Ontario (ONT)

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ONT
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
1 adult, Economy
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Cheapflights Tip: The best prices from Tempe to Ontario are usually found in September or August, booked 85 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from Tempe to Ontario

Cheapest flights from Tempe to Ontario
Explore the most affordable flight options available from Tempe to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2026.

This Southwest deal was found by Cheapflights users on 3/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:20 pm
PHX
-
ONT
Nonstop1h 10m
Southwest
Tue 4/213:45 pm
ONT
-
PHX
Nonstop1h 20m
Southwest
Deal found 3/17$117
This Southwest deal was found by Cheapflights users on 3/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:30 am
PHX
-
ONT
1 stop3h 05m
Southwest
Wed 4/1512:40 pm
ONT
-
PHX
Nonstop1h 20m
Southwest
Deal found 3/16$123
This WAYA deal was found by Cheapflights users on 3/20. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/84:27 pm
PHX
-
ONT
1 stop4h 33m
Frontier
Tue 4/1411:44 am
ONT
-
PHX
1 stop6h 13m
Frontier
Deal found 3/20$125
This Southwest deal was found by Cheapflights users on 3/19. 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 4/298:30 am
PHX
-
ONT
1 stop3h 05m
Southwest
Sat 5/25:40 am
ONT
-
PHX
Nonstop1h 15m
Southwest
Deal found 3/19$133
This Southwest deal was found by Cheapflights users on 3/20. 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.
Fri 4/179:35 am
PHX
-
ONT
Nonstop1h 20m
Southwest
Thu 4/233:00 pm
ONT
-
PHX
Nonstop1h 20m
Southwest
Deal found 3/20$137
This Frontier deal was found by Cheapflights users on 3/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/171:00 pm
PHX
-
ONT
1 stop10h 58m
Frontier
Sat 4/1812:59 am
ONT
-
PHX
1 stop6h 37m
Frontier
Deal found 3/20$140
This Frontier deal was found by Cheapflights users on 3/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:50 pm
PHX
-
ONT
1 stop11h 05m
Frontier
Mon 4/206:15 am
ONT
-
PHX
1 stop13h 08m
Frontier
Deal found 3/20$141
This CheapOair deal was found by Cheapflights users on 3/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:15 am
PHX
-
ONT
1 stop13h 52m
Frontier
Sun 4/126:10 pm
ONT
-
PHX
1 stop5h 16m
Frontier
Deal found 3/20$146

Find flight deals from Tempe to Ontario

Keep the following information in mind while searching for Tempe to Ontario flight deals. Data was last updated March 21, 2026.

Round-trip from

$117
(Southwest)

One-way from

$59
(Southwest)

Popular in

November

Cheapest in

September

Average price

$283
From Tempe to Ontario
Search Deals
One-way flight from Tempe to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Tempe to Ontario 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 March 21, 2026.
Use the filters below to find and compare flights from Tempe to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 4/14

1:55 pm-3:05 pm

Nonstop1h 10m

Ontario

Tue 4/14

5:50 pm-11:00 pm

1 stop5h 10m

$127

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 4/25

7:50 am-12:15 pm

1 stop4h 25m

Ontario

Mon 4/27

12:40 pm-2:00 pm

Nonstop1h 20m

$147

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 4/18

2:25 pm-3:35 pm

Nonstop1h 10m

Ontario

Sat 4/25

1:20 pm-9:10 pm

1 stop7h 50m

$147

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 4/17

9:35 am-10:55 am

Nonstop1h 20m

Ontario

Mon 4/20

5:05 pm-10:10 pm

1 stop5h 05m

$147

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 5/2

2:55 pm-8:45 pm

2 stops5h 50m

Ontario

Sat 5/9

8:40 am-9:55 am

Nonstop1h 15m

$152
Quickest round-trip

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 5/22

9:35 am-10:55 am

Nonstop1h 20m

Ontario

Tue 5/26

3:30 pm-7:45 pm

1 stop4h 15m

$238
Cheapest one-way
Quickest one-way

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Mon 4/27

9:55 pm-11:05 pm

Nonstop1h 10m

$69

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Wed 4/15

2:50 pm-8:50 pm

2 stops6h 00m

$74

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 5/15

2:05 pm-8:05 pm

1 stop6h 00m

$79

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 4/28

6:30 am-4:25 pm

2 stops9h 55m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Tempe to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Tempe 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 Tempe to Ontario

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

Use this chart to determine the optimal time to book a round-trip flight from Tempe to Ontario. Price data was last updated on March 13, 2026.

To ensure you get the cheapest price possible for a flight from Tempe to Ontario, you should look to book at least 85 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 Tempe to Ontario?

Currently, February is the cheapest month in which you can book a flight from Tempe to Ontario (average of $46). Flying from Tempe to Ontario in June is currently the most expensive (average of $79). 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 TM9 to ONT?

Find hourly flight availability from Tempe to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 21, 2026.

One of the essential ways to save on airfare from Tempe to Ontario 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 11% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Tempe to Ontario. Price data was last updated on March 14, 2026.

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

Weekly flight availability from Tempe to Ontario

Explore weekly flight availability from Tempe to Ontario. 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 March 21, 2026.

The most flights from TM9 to ONT are scheduled on a Tuesday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated March 21, 2026.
Read through reviews of airlines operating flights from Tempe to Ontario, such as Southwest,American Airlines, andFrontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,325 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,325 reviews
Southwest
8.0
Very good
4,325 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,487 reviews
Southwest
8.0
Very good
4,325 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,022 reviews
Southwest
8.0
Very good
4,325 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Tempe to Ontario. 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 into for flights to Ontario from Tempe?

    If you book a flight to Ontario from Tempe, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 10 flights from Tempe to Ontario per day from 3 different airlines.

  • How long is the flight from Tempe to Ontario?

    A quick flight from Tempe to Ontario can take about 1h 10m. Southwest provides one of the quickest options available for as low as $127. There are 324 mi between Tempe and Ontario. All flights are typically nonstop.

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

    $48 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on American Airlines and Frontier, with prices starting from $58 and $67, respectively.

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

    The top 3 most reliable airlines when flying from Tempe to Ontario are British Airways (89%), American Airlines (86%) and Porter Airlines (82%).

  • What are the cheapest flights from Tempe to Ontario?

    On average you can expect to pay $248 for a flight from Tempe to Ontario. The cheapest flight overall is $48 while the most popular route, (Phoenix Sky Harbor Intl - Ontario) is currently priced at $117.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Tempe to Ontario 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 Tempe to Ontario?

    Currently, February is the cheapest month in which you can book a flight from Tempe to Ontario (average of $46). Flying from Tempe to Ontario in June is currently the most expensive (average of $79). 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.

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Top 3 airlines flying from Tempe to Ontario

Discover the top 3 airlines that operate flights from Tempe to Ontario. 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 March 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$84Average$174FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$97Average$273FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$97Average$263FlexibilityNo cancel feeOn-time63%

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