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$72+ Cheap flights from Ontario to Tucson (ONT - TUS)

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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — TUS
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Ontario to Tucson

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Tucson (TUS). 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 15, 2025.

Round-trip from

$144
(Frontier)

One-way from

$72
(Frontier)

Popular in

December

Cheapest in

July

Average price

$349
From Ontario to Tucson
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One-way flight from Ontario to Tucson
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Highest demand for flights based on searches. 8% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 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 Ontario to Tucson

Cheapest flights from Ontario to Tucson
Explore the most affordable flight options available from Ontario to Tucson. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:05 amONT - TUS
1 stop5h 34mFrontier
Sun 10/128:46 amTUS - ONT
1 stop6h 46mFrontier
Deal found 9/13$144
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.
Thu 10/166:54 pmONT - TUS
1 stop16h 45mFrontier
Mon 10/2012:24 pmTUS - ONT
1 stop9h 41mFrontier
Deal found 9/14$146
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/188:59 pmONT - TUS
1 stop13h 46mFrontier
Sun 9/216:25 pmTUS - ONT
1 stop19h 35mFrontier
Deal found 9/14$164
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:59 pmONT - TUS
1 stop13h 46mFrontier
Sun 9/146:25 pmTUS - ONT
1 stop19h 35mFrontier
Deal found 9/13$192
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.
Thu 10/307:44 pmONT - TUS
1 stop16h 51mFrontier
Mon 11/32:20 pmTUS - ONT
1 stop8h 35mFrontier
Deal found 9/14$198
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.
Sat 11/151:37 pmONT - TUS
1 stop22h 58mFrontier
Mon 11/172:20 pmTUS - ONT
1 stop8h 35mFrontier
Deal found 9/14$207
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/178:59 pmONT - TUS
1 stop13h 46mFrontier
Fri 9/1911:35 amTUS - ONT
1 stop8h 19mFrontier
Deal found 9/13$211
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 9/253:43 pmONT - TUS
1 stop19h 02mFrontier
Mon 9/292:41 pmTUS - ONT
1 stop6h 15mFrontier
Deal found 9/12$220
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/208:59 pmONT - TUS
1 stop13h 46mFrontier
Mon 9/222:41 pmTUS - ONT
1 stop6h 15mFrontier
Deal found 9/13$226
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:00 amONT - TUS
1 stop4h 40mUnited Airlines
Sat 11/15:15 pmTUS - ONT
1 stop5h 36mUnited Airlines
Deal found 9/12$238
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2012:55 pmONT - TUS
1 stop3h 20mAmerican Airlines
Sun 11/236:30 amTUS - ONT
1 stop3h 31mAmerican Airlines
Deal found 9/12$243

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Tucson 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 15, 2025.
Use the filters below to find and compare flights from Ontario to Tucson that are best for you.

Fly from

Ontario

Fly to

Tucson

Route

Depart

Return

Price

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Fri 11/7

6:00 am-1:35 pm

1 stop6h 35m

Tucson

Sun 11/9

2:20 pm-10:05 pm

1 stop8h 45m

$144

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Fri 10/17

6:05 am-11:39 am

1 stop5h 34m

Tucson

Sun 10/19

8:46 am-3:32 pm

1 stop6h 46m

$144

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Fri 9/19

6:00 am-1:51 pm

1 stop7h 51m

Tucson

Mon 9/22

2:41 pm-8:56 pm

1 stop6h 15m

$144

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Wed 9/24

8:59 pm-10:45 am

1 stop13h 46m

Tucson

Sun 9/28

11:35 am-7:59 pm

1 stop8h 24m

$164

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Thu 10/30

6:00 am-10:40 am

1 stop4h 40m

Tucson

Sat 11/1

5:15 pm-10:51 pm

1 stop5h 36m

$238

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Thu 10/30

7:44 pm-12:35 pm

1 stop16h 51m

Tucson

Mon 11/3

2:20 pm-11:50 pm

2 stops34h 30m

$256

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Thu 10/30

5:55 pm-10:45 pm

1 stop4h 50m

Tucson

Sat 11/1

5:45 am-2:35 pm

2 stops8h 50m

$282

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Sat 10/18

5:50 pm-12:35 pm

1 stop18h 45m

Tucson

Tue 10/21

4:47 pm-11:39 pm

1 stop6h 52m

$310

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Tue 10/14

6:00 am-10:33 am

1 stop4h 33m

Tucson

Wed 10/22

4:47 pm-11:39 pm

1 stop6h 52m

$316

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Tue 10/14

6:00 am-10:33 am

1 stop4h 33m

Tucson

Sat 10/18

4:47 pm-9:20 pm

1 stop4h 33m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 21 results
1
2
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Best time to book a flight from Ontario to Tucson

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

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Tucson (average of $362). Flying from Ontario to Tucson in March is currently the most expensive (average of $424). 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 TUS?

Find hourly flight availability from Ontario to Tucson. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

It’s typically best to fly out from Ontario to Tucson at noon. Doing so could potentially save you 22% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing Tucson

Get insights into the airlines that provide service to Tucson. 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 Tucson. Reviews last updated September 15, 2025.
See what other customers who have flown with Southwest, American Airlines, and Frontier from Ontario to Tucson have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

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
4,242 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

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
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

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 Ontario to Tucson. 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 Ontario to Tucson?

    Airlines like Frontier fly from Ontario to Tucson in about 6h 35m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 408 mi.

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

    Currently priced at $143, Frontier will fly you from Ontario to Tucson and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Southwest - these airlines can fly you to your destination from $271 and $284, respectively. Frontier is currently priced 60% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Ontario to Tucson (average of $362). Flying from Ontario to Tucson in March is currently the most expensive (average of $424). 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

Traveling to a place near Tucson?

Book flights to Tucson if you plan to visit one of these locations
Sierra Vista
Green Valley

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Alternative routes for Ontario to Tucson

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Top 3 airlines flying from Ontario to Tucson

Discover the top 3 airlines that operate flights from Ontario to Tucson. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$143Average$202FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$271Average$375FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$284Average$354FlexibilityNo cancel feeOn-time63%

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