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$113+ 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — ONT
Jul 1 — Jul 81
Tue 7/1
Tue 7/8
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 June 26, 2025.

Round-trip from

$217
(Delta)

One-way from

$113
(Frontier)

Popular in

May

Cheapest in

April

Average price

$293
From Tucson to Ontario
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One-way flight from Tucson to Ontario
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High demand for flights, 4% 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 June 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 June 26, 2025.

This Delta deal was found by Cheapflights users on 6/25. 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.
Sun 8/311:33 pmTUS - ONT
1 stop9h 09mDelta
Wed 9/36:00 amONT - TUS
1 stop6h 53mDelta
Deal found 6/25$217
This Southwest deal was found by Cheapflights users on 6/25. 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.
Thu 8/216:50 amTUS - ONT
1 stop4h 15mSouthwest
Sun 8/248:25 pmONT - TUS
1 stop3h 40mSouthwest
Deal found 6/25$218
This Frontier deal was found by Cheapflights users on 6/24. 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 7/312:43 pmTUS - ONT
1 stop3h 35mFrontier
Sun 7/66:00 amONT - TUS
1 stop5h 50mFrontier
Deal found 6/24$239
This American Airlines deal was found by Cheapflights users on 6/25. 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.
Tue 7/298:43 amTUS - ONT
1 stop3h 17mAmerican Airlines
Wed 7/306:15 amONT - TUS
1 stop3h 06mAmerican Airlines
Deal found 6/25$252
This United Airlines deal was found by Cheapflights users on 6/24. 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 9/111:30 pmTUS - ONT
1 stop7h 13mUnited Airlines
Sat 9/135:10 amONT - TUS
1 stop7h 18mUnited Airlines
Deal found 6/24$261
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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.
Mon 8/1812:06 pmTUS - ONT
1 stop25h 20mAlaska Airlines
Fri 8/227:22 pmONT - TUS
1 stop15h 59mAlaska Airlines
Deal found 6/23$402
This Orbitz deal was found by Cheapflights users on 6/25. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2112:17 pmTUS - ONT
2 stops11h 36mMultiple Airlines
Sat 8/2312:59 amONT - TUS
1 stop9h 38mMultiple Airlines
Deal found 6/25$461

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 June 26, 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

Sun 8/31

1:33 pm-10:42 pm

1 stop9h 09m

Ontario

Wed 9/3

6:00 am-12:53 pm

1 stop6h 53m

$217

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 8/21

6:50 am-11:05 am

1 stop4h 15m

Ontario

Sun 8/24

8:25 pm-12:05 am

1 stop3h 40m

$218

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 7/17

12:45 pm-4:19 pm

1 stop3h 34m

Ontario

Thu 7/24

6:00 am-11:50 am

1 stop5h 50m

$246

TucsonOntario

TUS - ONT

TUSONT

Tucson

Tue 7/29

8:43 am-12:00 pm

1 stop3h 17m

Ontario

Wed 7/30

6:15 am-9:21 am

1 stop3h 06m

$252

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 9/11

1:30 pm-8:43 pm

1 stop7h 13m

Ontario

Sat 9/13

5:10 am-12:28 pm

1 stop7h 18m

$261

TucsonOntario

TUS - ONT

TUSONT

Tucson

Mon 8/18

12:06 pm-1:26 pm

1 stop25h 20m

Ontario

Fri 8/22

7:22 pm-11:21 am

1 stop15h 59m

$402

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 8/21

12:17 pm-11:53 pm

2 stops11h 36m

Ontario

Sat 8/23

12:59 am-10:37 am

1 stop9h 38m

$461

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 7/3

12:43 pm-4:18 pm

1 stop3h 35m

$113

TucsonOntario

TUS - ONT

TUSONT

Tucson

Fri 7/4

12:55 pm-10:46 pm

1 stop9h 51m

$119

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 8/7

6:28 am-12:14 pm

1 stop5h 46m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Showing 1-10 of 12 results
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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 June 26, 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 June 26, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,278 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,966 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,840 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    According to our current data, Delta ($217), Southwest ($218), and Frontier ($246) offers the cheapest pricing from Tucson to Ontario. Delta is currently priced 37% 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 Frontier, with whom users have recently found tickets for as low as $113. 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, 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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Alternative routes for Tucson to Ontario

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Top airline flying from Tucson to Ontario

Discover the top airline 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 June 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$250Average$353FlexibilityNo cancel feeOn-time71%

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