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$55+ 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — TUS
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$142
(Frontier)

One-way from

$55
(Frontier)

Popular in

November

Cheapest in

July

Average price

$536
Provider with most accurate pricing for Ontario-Tucson flight deals.
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Provider most trusted by Cheapflights users for Ontario-Tucson flights.
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From Ontario to Tucson
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One-way flight from Ontario to Tucson
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 13, 2025.

This Frontier deal was found by Cheapflights users on 11/10. 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.
Sun 11/2312:58 amONT - TUS
1 stop9h 50mFrontier
Tue 11/252:26 pmTUS - ONT
1 stop7h 40mFrontier
Deal found 11/10$144
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Mon 11/245:06 pmONT - TUS
1 stop19h 35mFrontier
Sat 11/294:37 pmTUS - ONT
1 stop5h 29mFrontier
Deal found 11/12$164
This Frontier deal was found by Cheapflights users on 11/12. 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.
Tue 11/2512:58 amONT - TUS
1 stop9h 50mFrontier
Fri 11/281:48 pmTUS - ONT
1 stop8h 18mFrontier
Deal found 11/12$168
This Expedia deal was found by Cheapflights users on 11/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2712:23 pmONT - TUS
1 stop22h 25mFrontier
Mon 12/112:48 pmTUS - ONT
1 stop12h 09mFrontier
Deal found 11/12$180
This Frontier deal was found by Cheapflights users on 11/10. 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.
Sat 11/226:30 amONT - TUS
1 stop8h 12mFrontier
Tue 11/252:26 pmTUS - ONT
1 stop7h 40mFrontier
Deal found 11/10$183
This Frontier deal was found by Cheapflights users on 11/11. 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.
Tue 11/256:30 amONT - TUS
1 stop6h 11mFrontier
Sat 11/294:37 pmTUS - ONT
1 stop5h 29mFrontier
Deal found 11/11$203
This Frontier deal was found by Cheapflights users on 11/12. 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.
Sat 11/2211:06 amONT - TUS
1 stop3h 36mFrontier
Wed 11/2612:38 pmTUS - ONT
1 stop12h 19mFrontier
Deal found 11/12$207
This Frontier deal was found by Cheapflights users on 11/12. 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 11/176:00 amONT - TUS
1 stop6h 35mFrontier
Fri 11/211:48 pmTUS - ONT
1 stop8h 18mFrontier
Deal found 11/12$236
This Alaska Airlines deal was found by Cheapflights users on 11/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:00 amONT - TUS
1 stop8h 45mAlaska Airlines
Mon 12/86:00 amTUS - ONT
1 stop18h 29mAlaska Airlines
Deal found 11/11$246

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 November 13, 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 1/30

1:28 pm-9:09 pm

1 stop6h 41m

Tucson

Sun 2/1

11:29 am-6:01 pm

1 stop7h 32m

$142

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Mon 11/24

5:06 pm-1:41 pm

1 stop19h 35m

Tucson

Sat 11/29

4:37 pm-9:06 pm

1 stop5h 29m

$164

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Wed 2/18

7:30 am-10:27 pm

2 stops13h 57m

Tucson

Mon 2/23

2:55 pm-1:56 pm

1 stop24h 01m

$232

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Mon 11/24

5:06 pm-1:41 pm

1 stop19h 35m

Tucson

Tue 11/25

8:11 pm-7:20 am

1 stop12h 09m

$241

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Sat 12/6

6:00 am-3:45 pm

1 stop8h 45m

Tucson

Wed 12/10

6:00 am-6:33 pm

1 stop13h 33m

$246

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Thu 1/29

6:00 am-3:30 pm

1 stop8h 30m

Tucson

Sun 2/8

6:00 am-11:56 pm

1 stop18h 56m

$246

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Sat 12/6

6:00 am-3:45 pm

1 stop8h 45m

Tucson

Mon 12/8

6:00 am-11:29 pm

1 stop18h 29m

$246

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Thu 1/15

4:03 pm-11:59 pm

1 stop6h 56m

Tucson

Mon 1/26

6:00 am-11:56 pm

1 stop18h 56m

$246

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Tue 12/2

4:49 pm-10:45 pm

1 stop4h 56m

$129

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Wed 12/17

6:00 am-11:38 am

1 stop4h 38m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 20 results
1
2

Compare providers for flights from Ontario to Tucson

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Tucson in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Tucson flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Tucson flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Tucson flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Tucson flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Tucson flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, January is the cheapest month in which you can book a flight from Ontario to Tucson (average of $38). Flying from Ontario to Tucson in June is currently the most expensive (average of $158). 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 November 13, 2025.

It’s typically best to fly out from Ontario to Tucson at noon. Doing so could potentially save you 21% 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 November 13, 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
4,236 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

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
4,236 reviews
Southwest
8.0
Very good
4,236 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

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
11,049 reviews
Southwest
8.0
Very good
4,236 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

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
3,114 reviews
Southwest
8.0
Very good
4,236 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

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 and Delta fly from Ontario to Tucson in about 6h 41m. The time it takes to get you to your destination can typically vary by up to 7h 16m. Airlines will cover a distance of 408 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $141, 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 $312, respectively. Frontier is currently priced 61% 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, January is the cheapest month in which you can book a flight from Ontario to Tucson (average of $38). Flying from Ontario to Tucson in June is currently the most expensive (average of $158). 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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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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$141Average$181FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$271Average$367FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$312Average$392FlexibilityNo cancel feeOn-time63%

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