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$71+ Cheap flights from Utah to Ontario (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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ONT
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Utah to Ontario

Keep the following information in mind while searching for Utah to Ontario flight deals. Data was last updated September 16, 2025.

Round-trip from

$143
(CheapOair)

One-way from

$71
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$141

Good round-trip deal

$199 or less

Good one-way deal

$248 or less
From Utah to Ontario
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One-way flight from Utah to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Utah to Ontario.
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Price to beat on a one-way flight from Utah to Ontario.
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Find flight deals from Utah to Ontario

Cheapest flights from Utah to Ontario
Explore the most affordable flight options available from Utah to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/39:45 pmSLC - ONT
1 stop23h 09mFrontier
Sun 10/58:59 pmONT - SLC
1 stop26h 15mFrontier
Deal found 9/14$143
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/224:02 pmSLC - ONT
1 stop4h 52mFrontier
Thu 9/259:16 amONT - SLC
1 stop5h 04mFrontier
Deal found 9/15$144
This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:33 pmSLC - ONT
1 stop8h 23mFrontier
Mon 9/298:59 pmONT - SLC
1 stop14h 47mFrontier
Deal found 9/16$145
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/202:07 pmSLC - ONT
1 stop8h 49mFrontier
Mon 9/226:00 amONT - SLC
1 stop3h 42mFrontier
Deal found 9/14$150
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.
Wed 9/176:05 pmSLC - ONT
1 stop4h 51mFrontier
Thu 9/189:16 amONT - SLC
1 stop9h 12mFrontier
Deal found 9/14$156
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:32 amSLC - ONT
1 stop26h 03mFrontier
Wed 10/226:53 amONT - SLC
1 stop14h 26mFrontier
Deal found 9/15$157
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/129:18 amSLC - ONT
1 stop3h 36mFrontier
Sun 10/126:44 pmONT - SLC
1 stop12h 49mFrontier
Deal found 9/14$158
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:32 amSLC - ONT
1 stop26h 03mFrontier
Sun 10/1910:40 pmONT - SLC
1 stop21h 30mFrontier
Deal found 9/14$160
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:05 pmSLC - ONT
1 stop4h 51mFrontier
Wed 9/178:59 pmONT - SLC
1 stop26h 15mFrontier
Deal found 9/14$164
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:45 amSLC - ONT
1 stop26h 08mFrontier
Sun 9/213:43 pmONT - SLC
1 stop14h 49mFrontier
Deal found 9/15$166
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/141:25 pmSLC - ONT
1 stop18h 52mFrontier
Mon 9/158:59 pmONT - SLC
1 stop24h 27mFrontier
Deal found 9/13$172
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.
Fri 9/261:25 pmSLC - ONT
1 stop9h 30mFrontier
Mon 9/296:00 amONT - SLC
1 stop3h 42mFrontier
Deal found 9/14$174

Cheapflights Fare Finder

 
Customize your flight search to find flights from Utah 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 September 16, 2025.
Use the filters below to find and compare flights from Utah to Ontario that are best for you.

Fly from

Utah

Fly to

Ontario

Route

Depart

Return

Price

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 10/3

9:45 pm-7:54 pm

1 stop23h 09m

Ontario

Mon 10/6

10:28 pm-4:39 pm

1 stop17h 11m

$143

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 10/3

9:45 pm-7:54 pm

1 stop23h 09m

Ontario

Fri 10/10

5:15 pm-6:43 pm

1 stop24h 28m

$143

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 11/7

4:50 pm-11:10 am

1 stop19h 20m

Ontario

Sun 11/9

7:44 pm-9:35 pm

1 stop24h 51m

$143

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 11/8

8:00 am-11:50 pm

1 stop16h 50m

Ontario

Sun 11/9

7:44 pm-9:35 pm

1 stop24h 51m

$143

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 10/30

9:28 am-9:55 pm

1 stop13h 27m

Ontario

Sun 11/2

5:53 am-6:32 am

1 stop23h 39m

$143

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 10/1

1:42 pm-7:54 pm

1 stop7h 12m

Ontario

Sun 10/5

8:59 pm-7:32 am

1 stop9h 33m

$144

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 10/18

12:30 pm-11:50 pm

1 stop12h 20m

Ontario

Sat 10/25

8:00 am-6:43 pm

1 stop9h 43m

$144

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sun 10/12

8:13 pm-11:47 am

1 stop16h 34m

Ontario

Mon 10/13

10:47 pm-4:39 pm

1 stop16h 52m

$158

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 11/27

10:40 am-2:30 pm

1 stop4h 50m

Ontario

Mon 12/1

4:20 pm-11:55 pm

1 stop6h 35m

$257

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 10/31

8:35 pm-9:20 pm

Nonstop1h 45m

Ontario

Mon 11/3

1:15 pm-4:00 pm

Nonstop1h 45m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 23 results
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Best time to book a flight from Utah to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Utah 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 Utah to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Utah to Ontario (average of $246). Flying from Utah to Ontario in March is currently the most expensive (average of $327). 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 UT to ONT?

Find hourly flight availability from Utah 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 September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Utah to Ontario as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Utah to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Utah?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from Utah.

  • How popular is this Utah to Ontario flight route?

    Flights from Utah to Ontario have been viewed 3 times in the past calendar month.

  • How long is the flight from Utah to Ontario?

    Airlines like Frontier fly from Utah to Ontario in about 23h 09m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 557 mi.

  • What are the most reliable airlines from Utah to Ontario?

    Before booking your flight to Ontario from Utah, check out the most reliable airlines to get you to your destination on time: LATAM Airlines (100%), Air France (97%), KLM( 95%).

  • What are the cheapest flights from Utah to Ontario?

    Looking at all options, your cheapest flight can be booked for $148. While the most popular route (Salt Lake City - Ontario) can be booked for $143 on average, our data indicates $324 when flying from Utah to Ontario.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Utah to Ontario (average of $246). Flying from Utah to Ontario in March is currently the most expensive (average of $327). 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 Utah to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Utah to Ontario

Discover the top 4 airlines that operate flights from Utah 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$70Average$158FlexibilityNo cancel feeOn-time62%
DeltaCheapest$199Average$300FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$214Average$292FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$216Average$388FlexibilityNo cancel feeOn-time71%

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