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$55+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — ONT
Dec 15 — Dec 221
Mon 12/15
Mon 12/22
1 adult, Economy
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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 November 15, 2025.

This Frontier deal was found by Cheapflights users on 11/14. 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.
Tue 11/258:11 pmTUS - ONT
1 stop12h 09mFrontier
Sat 11/296:30 amONT - TUS
1 stop8h 12mFrontier
Deal found 11/14$183
This Frontier deal was found by Cheapflights users on 11/14. 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.
Fri 11/2112:33 pmTUS - ONT
1 stop12h 24mFrontier
Sat 11/226:30 amONT - TUS
1 stop8h 12mFrontier
Deal found 11/14$222
This Trip.com deal was found by Cheapflights users on 11/14. 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.
Sat 11/224:37 pmTUS - ONT
1 stop5h 29mFrontier
Mon 11/245:06 pmONT - TUS
1 stop19h 35mFrontier
Deal found 11/14$241
This Alaska Airlines deal was found by Cheapflights users on 11/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:00 amTUS - ONT
1 stop13h 33mAlaska Airlines
Sun 12/146:00 amONT - TUS
1 stop16h 59mAlaska Airlines
Deal found 11/14$246
This Frontier deal was found by Cheapflights users on 11/14. 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 11/172:20 pmTUS - ONT
1 stop8h 37mFrontier
Thu 11/2012:58 amONT - TUS
1 stop9h 50mFrontier
Deal found 11/14$256
This Delta deal was found by Cheapflights users on 11/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:45 amTUS - ONT
1 stop6h 49mDelta
Sat 12/134:49 pmONT - TUS
1 stop4h 56mDelta
Deal found 11/13$257
This Frontier deal was found by Cheapflights users on 11/14. 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.
Sun 11/1612:32 pmTUS - ONT
1 stop12h 18mFrontier
Tue 11/256:30 amONT - TUS
1 stop6h 11mFrontier
Deal found 11/14$262
This Alaska Airlines deal was found by Cheapflights users on 11/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:00 amTUS - ONT
1 stop13h 33mAlaska Airlines
Sun 12/146:00 amONT - TUS
1 stop16h 59mAlaska Airlines
Deal found 11/14$265
This Expedia deal was found by Cheapflights users on 11/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:00 amTUS - ONT
1 stop13h 33mMultiple Airlines
Sat 12/205:16 pmONT - TUS
1 stop24h 42mMultiple Airlines
Deal found 11/13$266
This Frontier deal was found by Cheapflights users on 11/13. 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 11/142:20 pmTUS - ONT
1 stop8h 37mFrontier
Mon 11/176:00 amONT - TUS
1 stop6h 35mFrontier
Deal found 11/13$276
This Alaska Airlines deal was found by Cheapflights users on 11/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:00 amTUS - ONT
1 stop13h 33mAlaska Airlines
Thu 12/116:00 amONT - TUS
1 stop16h 59mAlaska Airlines
Deal found 11/13$286
This Southwest deal was found by Cheapflights users on 11/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:45 amTUS - ONT
2 stops7h 05mSouthwest
Sat 12/136:10 amONT - TUS
1 stop7h 15mSouthwest
Deal found 11/13$292

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 November 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$138
(Frontier)

One-way from

$55
(Frontier)

Popular in

December

Cheapest in

September

Average price

$396
Provider with most accurate pricing for Tucson-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Tucson-Ontario flights.
Search Deals
From Tucson to Ontario
Search Deals
One-way flight from Tucson to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 15, 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

Fri 11/21

12:33 pm-11:57 pm

1 stop12h 24m

Ontario

Sat 11/22

6:30 am-3:42 pm

1 stop8h 12m

$222

TucsonOntario

TUS - ONT

TUSONT

Tucson

Sat 11/22

4:37 pm-9:06 pm

1 stop5h 29m

Ontario

Sun 11/23

12:58 am-11:48 am

1 stop9h 50m

$222

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 2/5

6:00 am-11:56 pm

1 stop18h 56m

Ontario

Sun 2/8

6:00 am-11:59 pm

1 stop16h 59m

$246

TucsonOntario

TUS - ONT

TUSONT

Tucson

Sat 1/10

6:00 am-8:36 pm

1 stop15h 36m

Ontario

Tue 2/3

11:53 am-11:59 pm

1 stop11h 06m

$246

TucsonOntario

TUS - ONT

TUSONT

Tucson

Sat 12/6

6:45 am-12:34 pm

1 stop6h 49m

Ontario

Sat 12/13

4:49 pm-10:45 pm

1 stop4h 56m

$257

TucsonOntario

TUS - ONT

TUSONT

Tucson

Sat 12/6

6:45 am-12:34 pm

1 stop6h 49m

Ontario

Sat 12/6

4:49 pm-10:45 pm

1 stop4h 56m

$257

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 1/1

6:01 am-12:14 am

1 stop19h 13m

Ontario

Thu 1/8

6:00 am-11:59 pm

1 stop16h 59m

$266

TucsonOntario

TUS - ONT

TUSONT

Tucson

Fri 1/30

6:00 am-3:08 pm

1 stop10h 08m

Ontario

Wed 2/18

6:14 am-11:59 pm

1 stop16h 45m

$266

TucsonOntario

TUS - ONT

TUSONT

Tucson

Sat 12/6

6:00 am-6:33 pm

1 stop13h 33m

Ontario

Thu 12/11

6:00 am-11:59 pm

1 stop16h 59m

$286

TucsonOntario

TUS - ONT

TUSONT

Tucson

Sat 12/6

6:45 am-12:50 pm

2 stops7h 05m

Ontario

Sat 12/13

6:10 am-2:25 pm

1 stop7h 15m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Showing 1-10 of 20 results
1
2

Compare providers for flights from Tucson to Ontario

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 Tucson to Ontario in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Tucson-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Tucson-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Tucson-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Tucson-Ontario 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 Tucson-Ontario 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 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, February is the cheapest month in which you can book a flight from Tucson to Ontario (average of $24). Flying from Tucson to Ontario in April is currently the most expensive (average of $197). 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 November 15, 2025.

It’s typically best to fly out from Tucson to Ontario in the afternoon. Doing so could potentially save you 11% 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 November 15, 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
11,050 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.2

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
11,050 reviews
American Airlines
7.2
Good
11,050 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.2

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
3,110 reviews
American Airlines
7.2
Good
11,050 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.2

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 6h 49m. 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 66% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $148. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Tucson to Ontario for a low price.

  • 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, February is the cheapest month in which you can book a flight from Tucson to Ontario (average of $24). Flying from Tucson to Ontario in April is currently the most expensive (average of $197). 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.

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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 November 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$110Average$170FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$243Average$364FlexibilityNo cancel feeOn-time71%

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