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$60+ Cheap flights from Tucson to Ontario (TUS - 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — ONT
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap flight deals from Tucson to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Tucson (TUS) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 14, 2025.

Round-trip from

$144
(Frontier)

One-way from

$60
(Kiwi.com)

Popular in

May

Cheapest in

June

Average price

$336
From Tucson to Ontario
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One-way flight from Tucson to Ontario
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High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Tucson to Ontario

Cheapest flights from Tucson to Ontario
Explore the most affordable flight options available from Tucson to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This Frontier deal was found by Cheapflights users on 9/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/262:41 pmTUS - ONT
1 stop7h 14mFrontier
Mon 9/296:00 amONT - TUS
1 stop7h 51mFrontier
Deal found 9/12$144
This Frontier deal was found by Cheapflights users on 9/11. 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 9/1211:35 amTUS - ONT
1 stop8h 19mFrontier
Mon 9/156:00 amONT - TUS
1 stop7h 51mFrontier
Deal found 9/11$154
This Frontier deal was found by Cheapflights users on 9/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2712:24 pmTUS - ONT
1 stop9h 41mFrontier
Mon 11/36:00 amONT - TUS
1 stop6h 35mFrontier
Deal found 9/12$155
This Trip.com deal was found by Cheapflights users on 9/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:35 amTUS - ONT
1 stop8h 19mFrontier
Sat 9/208:59 pmONT - TUS
1 stop13h 46mFrontier
Deal found 9/12$157
This Trip.com deal was found by Cheapflights users on 9/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:35 amTUS - ONT
1 stop8h 19mFrontier
Sun 9/216:00 amONT - TUS
1 stop11h 35mFrontier
Deal found 9/12$163
This Frontier deal was found by Cheapflights users on 9/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/72:20 pmTUS - ONT
1 stop8h 35mFrontier
Mon 11/106:00 amONT - TUS
1 stop6h 35mFrontier
Deal found 9/12$172
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2611:35 amTUS - ONT
1 stop8h 19mFrontier
Sun 9/287:30 pmONT - TUS
1 stop18h 21mFrontier
Deal found 9/13$173
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:25 pmTUS - ONT
1 stop12h 52mFrontier
Sun 9/217:30 pmONT - TUS
1 stop18h 21mFrontier
Deal found 9/14$174
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:25 pmTUS - ONT
1 stop12h 52mFrontier
Mon 9/226:00 amONT - TUS
1 stop7h 51mFrontier
Deal found 9/14$180
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:25 pmTUS - ONT
1 stop12h 52mFrontier
Thu 10/27:30 pmONT - TUS
1 stop18h 21mFrontier
Deal found 9/12$188
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/152:41 pmTUS - ONT
1 stop6h 15mFrontier
Mon 9/226:00 amONT - TUS
1 stop7h 51mFrontier
Deal found 9/14$211
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 9/2511:35 amTUS - ONT
1 stop8h 19mFrontier
Sun 9/2810:28 pmONT - TUS
1 stop15h 23mFrontier
Deal found 9/11$214

Cheapflights Fare Finder

 
Customize your flight search to find flights from Tucson 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 September 14, 2025.
Use the filters below to find and compare flights from Tucson to Ontario that are best for you.

Fly from

Tucson

Fly to

Ontario

Route

Depart

Return

Price

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 10/2

11:35 am-7:54 pm

1 stop8h 19m

Ontario

Mon 10/6

6:00 am-1:51 pm

1 stop7h 51m

$154

TucsonOntario

TUS - ONT

TUSONT

Tucson

Mon 10/27

12:24 pm-10:05 pm

1 stop9h 41m

Ontario

Mon 11/3

6:00 am-1:35 pm

1 stop6h 35m

$155

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 9/25

11:35 am-7:54 pm

1 stop8h 19m

Ontario

Sun 9/28

10:28 pm-1:51 pm

1 stop15h 23m

$214

TucsonOntario

TUS - ONT

TUSONT

Tucson

Mon 11/24

5:15 pm-12:05 am

1 stop7h 50m

Ontario

Fri 11/28

4:15 pm-12:25 am

1 stop7h 10m

$231

TucsonOntario

TUS - ONT

TUSONT

Tucson

Wed 1/7

6:00 pm-10:52 pm

1 stop5h 52m

Ontario

Wed 1/14

5:05 pm-11:13 pm

1 stop5h 08m

$257

TucsonOntario

TUS - ONT

TUSONT

Tucson

Wed 10/8

2:59 pm-6:35 pm

1 stop3h 36m

Ontario

Wed 10/15

10:09 am-1:16 pm

1 stop3h 07m

$257

TucsonOntario

TUS - ONT

TUSONT

Tucson

Sat 1/10

6:00 pm-10:52 pm

1 stop5h 52m

Ontario

Wed 1/14

5:05 pm-11:13 pm

1 stop5h 08m

$257

TucsonOntario

TUS - ONT

TUSONT

Tucson

Wed 1/7

12:30 pm-4:19 pm

1 stop4h 49m

Ontario

Sat 1/10

6:00 am-11:25 am

1 stop4h 25m

$257

TucsonOntario

TUS - ONT

TUSONT

Tucson

Wed 11/5

7:30 am-8:53 pm

2 stops14h 23m

Ontario

Mon 11/10

6:00 am-1:35 pm

1 stop6h 35m

$274

TucsonOntario

TUS - ONT

TUSONT

Tucson

Sat 10/18

8:40 am-12:01 pm

1 stop3h 21m

Ontario

Mon 10/20

4:49 pm-7:47 pm

1 stop2h 58m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 20 results
1
2

Best time to book a flight from Tucson to Ontario

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

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

Currently, August is the cheapest month in which you can book a flight from Tucson to Ontario (average of $246). Flying from Tucson 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 TUS to ONT?

Find hourly flight availability from Tucson 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 September 14, 2025.

It’s typically best to fly out from Tucson to Ontario in the afternoon. Doing so could potentially save you 12% on the flight price compared to flying in the evening, which is usually more expensive.

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 September 14, 2025.
Peruse reviews from past customers who have flown with American Airlines and Frontier from Tucson to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Comfort

7.2

Overall

7.2

Crew

8.0

Boarding

7.5

Food

6.4

Reviews

1 / 20
4.0
Okay

Amanda,Sep 2023

PHX - OGG

The flight attendants only came thru twice for drink service the entire 6 hour flight. The first was 90 minutes in and the second was an hour before landing. It feels like it should be more.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Comfort

7.2

Overall

7.2

Crew

8.0

Boarding

7.5

Food

6.4

Reviews

1 / 20
4.0
Okay

Amanda,Sep 2023

PHX - OGG

The flight attendants only came thru twice for drink service the entire 6 hour flight. The first was 90 minutes in and the second was an hour before landing. It feels like it should be more.
Frontier
5.8
Fair
3,176 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Comfort

7.2

Overall

7.2

Crew

8.0

Boarding

7.5

Food

6.4

Reviews

1 / 20
4.0
Okay

Amanda,Sep 2023

PHX - OGG

The flight attendants only came thru twice for drink service the entire 6 hour flight. The first was 90 minutes in and the second was an hour before landing. It feels like it should be more.

Related info for your journey

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

  • How long is the flight from Tucson to Ontario?

    Departing from Tucson to Ontario will take you 5h 52m. The distance from Tucson to Ontario is about 408 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Tucson to Ontario round-trip?

    According to our current data, Frontier ($110), and American Airlines ($243) offers the cheapest pricing from Tucson to Ontario. Frontier is currently priced 67% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Tucson to Ontario (average of $246). Flying from Tucson 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 2 airlines flying from Tucson to Ontario

Discover the top 2 airlines that operate flights from Tucson 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 September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$110Average$210FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$243Average$357FlexibilityNo cancel feeOn-time71%

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