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Ontario

$48+ 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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ONT
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 Thursday or Wednesday 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 December 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/2. 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 12/97:43 pmPHX - ONT
1 stop26h 34mFrontier
Sun 12/145:18 pmONT - PHX
1 stop14h 30mFrontier
Deal found 12/2$89
This Kiwi.com deal was found by Cheapflights users on 12/3. 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 12/1010:05 amPHX - ONT
2 stops12h 12mFrontier
Sun 12/146:15 amONT - PHX
1 stop25h 33mFrontier
Deal found 12/3$115
This Mytrip deal was found by Cheapflights users on 12/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:26 pmPHX - ONT
1 stop23h 51mFrontier
Tue 2/37:15 amONT - PHX
1 stop5h 25mFrontier
Deal found 12/3$152
This CheapOair deal was found by Cheapflights users on 12/3. 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.
Sun 12/2810:26 pmPHX - ONT
1 stop19h 49mFrontier
Thu 1/2911:04 amONT - PHX
1 stop3h 38mFrontier
Deal found 12/3$153
This Frontier deal was found by Cheapflights users on 12/3. 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.
Wed 12/249:58 amPHX - ONT
1 stop8h 17mFrontier
Sat 1/107:00 amONT - PHX
1 stop7h 31mFrontier
Deal found 12/3$163
This Mytrip deal was found by Cheapflights users on 12/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amPHX - ONT
1 stop17h 59mFrontier
Wed 1/77:00 amONT - PHX
1 stop5h 06mFrontier
Deal found 12/3$169
This Mytrip deal was found by Cheapflights users on 12/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:26 pmPHX - ONT
1 stop23h 51mFrontier
Sat 12/276:00 amONT - PHX
1 stop3h 40mFrontier
Deal found 12/3$170
This CheapOair deal was found by Cheapflights users on 12/3. 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.
Sat 12/207:00 amPHX - ONT
1 stop10h 31mFrontier
Sat 12/275:16 pmONT - PHX
1 stop3h 30mFrontier
Deal found 12/3$171
This Mytrip deal was found by Cheapflights users on 12/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:00 amPHX - ONT
1 stop17h 13mFrontier
Mon 12/296:00 pmONT - PHX
1 stop13h 48mFrontier
Deal found 12/2$172
This Mytrip deal was found by Cheapflights users on 12/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:58 amPHX - ONT
1 stop8h 17mFrontier
Sun 1/46:37 pmONT - PHX
1 stop13h 11mFrontier
Deal found 12/3$173
This CheapOair deal was found by Cheapflights users on 12/3. 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.
Mon 12/229:58 amPHX - ONT
1 stop8h 17mFrontier
Mon 12/296:00 amONT - PHX
1 stop25h 48mFrontier
Deal found 12/3$175

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 December 4, 2025.

Round-trip from

$107
(Kiwi.com)

One-way from

$48
(Kiwi.com)

Popular in

November

Cheapest in

September

Average price

$284
From Tempe to Ontario
Search Deals
One-way flight from Tempe to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($21 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 December 2025
Search Deals

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 December 4, 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

Sat 1/24

2:06 pm-6:40 pm

1 stop5h 34m

Ontario

Tue 1/27

7:15 am-1:40 pm

1 stop5h 25m

$128

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 2/6

1:20 pm-12:20 am

1 stop12h 00m

Ontario

Mon 2/9

1:05 pm-8:07 pm

1 stop6h 02m

$128

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Wed 1/7

8:48 am-9:08 am

Nonstop1h 20m

Ontario

Sat 1/10

4:45 pm-7:06 pm

Nonstop1h 21m

$151

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 1/20

9:55 am-12:15 pm

1 stop3h 20m

Ontario

Sat 2/7

1:45 pm-4:00 pm

Nonstop1h 15m

$161

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sun 12/21

10:26 pm-9:17 pm

1 stop23h 51m

Ontario

Tue 1/6

7:52 am-1:13 pm

1 stop4h 21m

$170

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 1/10

7:30 am-1:05 pm

1 stop6h 35m

Ontario

Mon 1/12

5:45 pm-8:00 pm

Nonstop1h 15m

$181

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 1/24

6:30 am-10:00 am

1 stop4h 30m

Ontario

Mon 1/26

3:20 pm-5:40 pm

Nonstop1h 20m

$181

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 12/25

7:00 am-11:59 pm

1 stop17h 59m

Ontario

Fri 12/26

6:45 am-12:29 am

1 stop16h 44m

$198

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 12/19

10:26 pm-4:31 pm

1 stop19h 05m

Ontario

Mon 1/5

6:00 pm-1:13 pm

1 stop18h 13m

$200

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 12/19

10:26 pm-4:31 pm

1 stop19h 05m

Ontario

Sat 1/3

6:45 am-9:41 pm

1 stop13h 56m

$200

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 23 results
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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 November 28, 2025.

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 $25). Flying from Tempe to Ontario in July 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 December 4, 2025.

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 morning tend to be the most expensive. A flight at noon could potentially save you up to 33% 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 December 16, 2024.

Travelers seeking maximum savings on their Tempe to Ontario flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday 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 December 4, 2025.

The most flights from TM9 to ONT are scheduled on a Monday (12 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 December 4, 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
4,252 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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
4,252 reviews
Southwest
8.0
Very good
4,252 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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
11,043 reviews
Southwest
8.0
Very good
4,252 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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
3,092 reviews
Southwest
8.0
Very good
4,252 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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 9 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 20m. Frontier provides one of the quickest options available for as low as $151. There are 324 mi between Tempe and Ontario. This flight may include one or multiple stops.

  • 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 Frontier and American Airlines, with prices starting from $50 and $63, respectively.

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

    The top 3 most reliable airlines when flying from Tempe to Ontario are SkyWest Airlines (100%), British Airways (85%) and American Airlines (75%).

  • What are the cheapest flights from Tempe to Ontario?

    On average you can expect to pay $292 for a flight from Tempe to Ontario. The cheapest flight overall is $115 while the most popular route, (Phoenix Sky Harbor Intl - Ontario) is currently priced at $128.

  • 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 $25). Flying from Tempe to Ontario in July 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.

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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$68Average$159FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$97Average$278FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$97Average$270FlexibilityNo cancel feeOn-time63%

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