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$39+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ONT
אוג' 19 — אוג' 261
ג' 8/19
ג' 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Tempe to Ontario are usually found in October or August, booked 74 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

Cheap flight deals from Tempe to Ontario

Keep the following information in mind while searching for Tempe to Ontario flight deals. Data was last updated אוגוסט 14, 2025.

Round-trip from

$77
(Southwest)

One-way from

$39
(Southwest)

Popular in

December

Cheapest in

October

Average price

$196
From Tempe to Ontario
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One-way flight from Tempe to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 אוגוסט 14, 2025.

This Southwest deal was found by Cheapflights users on 8/13. 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.
ש' 10/117:40 pmPHX - ONT
Nonstop1h 10mSouthwest
ד' 10/157:15 pmONT - PHX
Nonstop1h 20mSouthwest
Deal found 8/13$77
This American Airlines deal was found by Cheapflights users on 8/12. 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.
ג' 11/43:49 pmPHX - ONT
Nonstop1h 12mAmerican Airlines
ה' 11/612:55 pmONT - PHX
Nonstop1h 23mAmerican Airlines
Deal found 8/12$91
This Southwest deal was found by Cheapflights users on 8/13. 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.
ש' 9/68:55 amPHX - ONT
1 stop4h 15mSouthwest
ש' 9/63:45 pmONT - PHX
1 stop4h 25mSouthwest
Deal found 8/13$97
This Southwest deal was found by Cheapflights users on 8/13. 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.
ג' 9/93:35 pmPHX - ONT
2 stops6h 30mSouthwest
ג' 9/1610:00 amONT - PHX
2 stops5h 30mSouthwest
Deal found 8/13$107
This Southwest deal was found by Cheapflights users on 8/14. 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.
ד' 9/310:40 amPHX - ONT
Nonstop1h 20mSouthwest
ו' 9/58:40 pmONT - PHX
Nonstop1h 20mSouthwest
Deal found 8/14$114
This American Airlines deal was found by Cheapflights users on 8/13. 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.
א' 9/72:43 pmPHX - ONT
Nonstop1h 22mAmerican Airlines
ש' 9/2010:20 amONT - PHX
Nonstop1h 18mAmerican Airlines
Deal found 8/13$121
This American Airlines deal was found by Cheapflights users on 8/13. 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.
ה' 10/98:03 amPHX - ONT
Nonstop1h 16mAmerican Airlines
א' 10/127:27 pmONT - PHX
Nonstop1h 20mAmerican Airlines
Deal found 8/13$122

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 אוגוסט 14, 2025.
Use the filters below to find and compare flights from Tempe to Ontario that are best for you.

Fly from

Tempe

Fly to

Ontario

Route

Depart

Return

Price

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

ש' 10/11

7:40 pm-8:50 pm

Nonstop1h 10m

Ontario

ד' 10/15

2:20 pm-3:40 pm

Nonstop1h 20m

$77

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

ה' 11/6

7:30 pm-7:40 pm

Nonstop1h 10m

Ontario

ג' 11/11

12:35 pm-2:50 pm

Nonstop1h 15m

$77

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

ש' 9/27

1:10 pm-2:20 pm

Nonstop1h 10m

Ontario

ב' 9/29

6:20 pm-7:40 pm

Nonstop1h 20m

$77

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

ב' 9/8

3:20 pm-4:30 pm

Nonstop1h 10m

Ontario

ד' 9/10

6:20 am-7:35 am

Nonstop1h 15m

$77

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

ש' 9/6

9:00 am-10:20 am

Nonstop1h 20m

Ontario

ש' 9/6

1:55 pm-3:15 pm

Nonstop1h 20m

$77

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

ג' 9/9

7:50 pm-9:00 pm

Nonstop1h 10m

Ontario

ג' 9/16

7:10 pm-8:25 pm

Nonstop1h 15m

$77

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

ד' 10/29

3:25 pm-4:40 pm

Nonstop1h 15m

$39

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

ב' 10/27

7:40 am-9:00 am

Nonstop1h 20m

$39

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

ש' 11/8

6:45 pm-7:00 pm

Nonstop1h 15m

$39

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

ד' 11/5

6:15 pm-6:30 pm

Nonstop1h 15m

$39

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 13 results
1
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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 August 8, 2025.

To ensure you get the cheapest price possible for a flight from Tempe to Ontario, you should look to book at least 74 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, August is the cheapest month in which you can book a flight from Tempe to Ontario (average of $246). Flying from Tempe to Ontario in March is currently the most expensive (average of $328). 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 אוגוסט 14, 2025.

When flying from Tempe to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 December 16, 2024.

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. Monday 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 אוגוסט 14, 2025.

The most flights from TM9 to ONT are scheduled on a Thursday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 אוגוסט 14, 2025.
Read through reviews of airlines operating flights from Tempe to Ontario, such as Southwest, American Airlines, and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,218 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 7 flights from Tempe to Ontario per day from 3 different airlines.

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

    The top 3 most reliable airlines when flying from Tempe to Ontario are Envoy Air (100%), SkyWest Airlines (90%) and American Airlines (88%).

  • What are the cheapest flights from Tempe to Ontario?

    On average you can expect to pay $202 for a flight from Tempe to Ontario. The cheapest flight overall is $45 while the most popular route, (Phoenix Sky Harbor Intl - Ontario) is currently priced at $77.

  • 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, August is the cheapest month in which you can book a flight from Tempe to Ontario (average of $246). Flying from Tempe to Ontario in March is currently the most expensive (average of $328). 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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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 אוגוסט 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$156FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$108Average$262FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$121Average$276FlexibilityNo cancel feeOn-time71%

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