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Tucson

$78+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — TUS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This Trip.com deal was found by Cheapflights users on 12/16. 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.
Mon 12/296:00 pmONT - TUS
1 stop23h 35mFrontier
Sun 1/47:43 pmTUS - ONT
1 stop22h 32mFrontier
Deal found 12/16$185
This Expedia deal was found by Cheapflights users on 12/15. 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.
Mon 12/226:45 amONT - TUS
1 stop28h 10mFrontier
Tue 12/237:20 pmTUS - ONT
1 stop22h 55mFrontier
Deal found 12/15$225
This Booking.com deal was found by Cheapflights users on 12/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/218:19 amONT - TUS
1 stop8h 34mFrontier
Tue 12/237:20 pmTUS - ONT
1 stop22h 55mFrontier
Deal found 12/16$255
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 12/244:22 pmONT - TUS
1 stop22h 19mFrontier
Mon 12/2912:50 pmTUS - ONT
2 stops29h 32mFrontier
Deal found 12/18$443
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Mon 12/291:40 pmONT - TUS
1 stop7h 18mUnited Airlines
Tue 1/61:40 pmTUS - ONT
1 stop5h 11mUnited Airlines
Deal found 12/16$460
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/251:40 pmONT - TUS
1 stop7h 18mUnited Airlines
Thu 1/152:32 pmTUS - ONT
1 stop7h 26mUnited Airlines
Deal found 12/17$465
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:10 pmONT - TUS
1 stop4h 35mDelta
Thu 1/812:24 pmTUS - ONT
1 stop4h 48mDelta
Deal found 12/17$467
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/251:40 pmONT - TUS
1 stop7h 18mUnited Airlines
Wed 12/316:34 pmTUS - ONT
1 stop4h 59mUnited Airlines
Deal found 12/17$526

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$175
(Booking.com)

One-way from

$78
(Trip.com)

Popular in

April

Cheapest in

July

Average price

$374
Provider with most accurate pricing for Ontario-Tucson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Tucson flights.
Search Deals
From Ontario to Tucson
Search Deals
One-way flight from Ontario to Tucson
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 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 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 December 18, 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

Thu 1/22

11:53 am-11:59 pm

1 stop11h 06m

Tucson

Sat 1/24

6:00 am-3:08 pm

1 stop10h 08m

$246

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Thu 1/29

4:03 pm-11:59 pm

1 stop6h 56m

Tucson

Thu 2/5

6:00 am-11:56 pm

1 stop18h 56m

$246

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Fri 1/30

11:53 am-11:59 pm

1 stop11h 06m

Tucson

Wed 2/4

6:00 am-8:36 pm

1 stop15h 36m

$246

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Wed 1/14

5:07 pm-10:27 pm

1 stop4h 20m

Tucson

Tue 1/20

8:00 am-12:16 pm

1 stop5h 16m

$257

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Wed 1/21

6:22 am-11:15 am

1 stop3h 53m

Tucson

Wed 1/21

4:07 pm-6:20 pm

1 stop3h 13m

$257

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Tue 1/6

5:07 pm-10:27 pm

1 stop4h 20m

Tucson

Sat 1/10

5:55 pm-9:48 pm

1 stop4h 53m

$257

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Fri 1/16

11:53 am-11:59 pm

1 stop11h 06m

Tucson

Sun 1/18

6:00 am-11:56 pm

1 stop18h 56m

$265

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Fri 2/27

4:02 pm-11:59 pm

1 stop6h 57m

Tucson

Sat 2/28

6:00 am-11:32 pm

1 stop18h 32m

$267

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Fri 2/27

4:02 pm-11:59 pm

1 stop6h 57m

Tucson

Tue 3/3

6:00 am-10:44 pm

1 stop17h 44m

$267

OntarioTucson

ONT - TUS

ONTTUS

Ontario

Mon 2/2

6:00 am-11:59 pm

1 stop16h 59m

Tucson

Fri 2/6

6:08 pm-5:03 pm

1 stop23h 55m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 21 results
1
2
3

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 December.
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 December 18, 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 December 18, 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
7.9
Good
4,249 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
7.9
Good
4,249 reviews
Southwest
7.9
Good
4,249 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,054 reviews
Southwest
7.9
Good
4,249 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.8
Fair
3,082 reviews
Southwest
7.9
Good
4,249 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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 Alaska Airlines and Delta fly from Ontario to Tucson in about 4h 20m. The time it takes to get you to your destination can typically vary by up to 6h 46m. 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 $262 and $312, respectively. Frontier is currently priced 59% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Ontario to Tucson one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $76. Users have also found prices from $108 and $118 on Southwest and American Airlines, respectively.

  • 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$143Average$190FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$262Average$358FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$312Average$364FlexibilityNo cancel feeOn-time63%

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