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Ontario

$72+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ONT
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
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 August 1, 2025.

Round-trip from

$178
(Frontier)

One-way from

$72
(Trip.com)

Popular in

November

Cheapest in

September

Average price

$152

Good round-trip deal

$239 or less

Good one-way deal

$208 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 ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 1, 2025.

This Frontier deal was found by Cheapflights users on 7/30. 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 9/231:42 pmSLC - ONT
1 stop7h 12mFrontier
Fri 10/1012:59 amONT - SLC
1 stop10h 48mFrontier
Deal found 7/30$178
This Delta deal was found by Cheapflights users on 7/30. 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.
Thu 9/48:10 amSLC - ONT
Nonstop1h 45mDelta
Sun 9/76:05 amONT - SLC
Nonstop1h 47mDelta
Deal found 7/30$197
This Southwest deal was found by Cheapflights users on 7/30. 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.
Wed 8/2711:20 amSLC - ONT
1 stop7h 15mSouthwest
Wed 9/36:20 amONT - SLC
1 stop6h 10mSouthwest
Deal found 7/30$213

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 August 1, 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

Tue 9/23

1:42 pm-7:54 pm

1 stop7h 12m

Ontario

Tue 10/14

8:00 am-4:39 pm

1 stop7h 39m

$178

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 9/4

8:10 am-8:55 am

Nonstop1h 45m

Ontario

Sun 9/7

6:05 am-8:52 am

Nonstop1h 47m

$197

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 8/27

11:20 am-5:35 pm

1 stop7h 15m

Ontario

Wed 9/3

6:20 am-1:30 pm

1 stop6h 10m

$213

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 9/4

12:12 pm-4:05 pm

1 stop4h 53m

Ontario

Sun 9/7

4:45 pm-9:39 pm

1 stop3h 54m

$219

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 8/26

9:15 am-2:09 pm

1 stop5h 54m

Ontario

Tue 8/26

5:49 pm-10:01 am

1 stop15h 12m

$294

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 9/27

3:34 pm-9:56 pm

1 stop7h 22m

$72

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 9/17

1:42 pm-7:54 pm

1 stop7h 12m

$89

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 12/2

5:45 am-9:15 am

1 stop4h 30m

$107

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 12/9

5:50 pm-10:37 pm

1 stop5h 47m

$147

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sun 11/2

8:35 pm-9:20 pm

Nonstop1h 45m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 12 results
1
2

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 $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 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 August 1, 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.

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 August 1, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Utah to Ontario by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

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

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

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
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

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
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

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
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

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

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

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 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.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $89. However, be on the lookout for offers from Southwest and Alaska Airlines, as they are both options that can get you from Utah to Ontario for a low price.

  • 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: Air France (98%), SkyWest Airlines (96%), Aeromexico( 90%).

  • 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 $179 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 $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 Utah to Ontario

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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 August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$64Average$128FlexibilityNo cancel feeOn-time62%
DeltaCheapest$200Average$301FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$388FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$218Average$307FlexibilityNo cancel feeOn-time63%

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