HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$82+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ONT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Utah to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$153
(Frontier)

One-way from

$82
(Trip.com)

Popular in

November

Cheapest in

September

Average price

$197

Good round-trip deal

$239 or less

Good one-way deal

$178 or less
From Utah to Ontario
Search Deals
One-way flight from Utah to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($21 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 June 2025
Search Deals
Price to beat on a round-trip flight from Utah to Ontario.
Search Deals
Price to beat on a one-way flight from Utah to Ontario.
Search Deals

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 June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/12. 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 9/44:53 pmSLC - ONT
1 stop5h 01mFrontier
Mon 9/86:00 amONT - SLC
1 stop8h 53mFrontier
Deal found 6/12$153
This Delta deal was found by Cheapflights users on 6/10. 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 7/2211:30 amSLC - ONT
Nonstop1h 44mDelta
Tue 7/295:09 pmONT - SLC
Nonstop1h 51mDelta
Deal found 6/10$239
This American Airlines deal was found by Cheapflights users on 6/12. 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 7/2212:29 pmSLC - ONT
1 stop6h 39mAmerican Airlines
Tue 7/2912:55 pmONT - SLC
1 stop4h 39mAmerican Airlines
Deal found 6/12$259
This Southwest deal was found by Cheapflights users on 6/12. 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.
Fri 6/278:10 pmSLC - ONT
1 stop4h 45mSouthwest
Sun 6/298:45 pmONT - SLC
1 stop3h 25mSouthwest
Deal found 6/12$307
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 11/11:59 pmSLC - ONT
1 stop7h 49mAlaska Airlines
Tue 11/411:39 amONT - SLC
2 stops21h 20mAlaska Airlines
Deal found 6/12$320

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 June 12, 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

Thu 9/4

4:53 pm-8:54 pm

1 stop5h 01m

Ontario

Mon 9/8

6:00 am-3:53 pm

1 stop8h 53m

$153

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 7/22

11:30 am-12:14 pm

Nonstop1h 44m

Ontario

Tue 7/29

5:09 pm-8:00 pm

Nonstop1h 51m

$239

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 7/22

12:29 pm-4:14 pm

1 stop4h 45m

Ontario

Tue 7/29

6:15 am-11:40 am

1 stop4h 25m

$259

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 6/27

8:10 pm-11:55 pm

1 stop4h 45m

Ontario

Sun 6/29

8:45 pm-1:10 am

1 stop3h 25m

$307

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 9/5

4:03 pm-11:50 pm

1 stop8h 47m

$82

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Mon 8/4

7:35 pm-10:15 pm

1 stop3h 40m

$108

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 7/12

11:56 am-4:20 pm

1 stop5h 24m

$112

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Mon 9/8

12:39 pm-5:37 pm

1 stop5h 58m

$113

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 8/16

7:50 pm-11:59 pm

1 stop5h 09m

$134

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sun 7/13

10:55 pm-11:42 pm

Nonstop1h 47m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 11 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 June 12, 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.

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 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Utah to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

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

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

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 13 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 $82. However, be on the lookout for offers from Southwest and United 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: LATAM Airlines (100%), Korean Air (100%), Aeromexico( 98%).

  • 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 $173 on average our data indicates $279 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Utah to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
Seattle to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Dallas/Fort Worth to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
O'Hare Intl to Las Vegas flights
Newark to Las Vegas flights
Los Angeles to San Francisco flights
Hobby to Las Vegas flights
San Francisco to Las Vegas flights
Newark to San Francisco flights
O'Hare Intl to Los Angeles flights
LaGuardia to Los Angeles flights
Los Angeles to Las Vegas flights
Seattle to Las Vegas flights
San Jose to Los Angeles flights
San Francisco to Los Angeles flights
Dulles Intl to Los Angeles flights
Reagan-National to Los Angeles flights
George Bush Intcntl to Las Vegas flights
Boston to Los Angeles flights
Los Angeles to San Jose flights
Denver to Las Vegas flights
Oakland to Santa Ana flights
Atlanta to Las Vegas flights
LaGuardia to Las Vegas flights
Boston to Las Vegas flights
Santa Ana to Las Vegas flights
Oakland to Las Vegas flights
Oakland to Los Angeles flights
Baltimore to Las Vegas flights
Dallas/Fort Worth to San Francisco flights
Seattle to Santa Ana flights
Burbank to Las Vegas flights
Seattle to San Francisco flights
Los Angeles to Oakland flights
John F Kennedy Intl to Ontario flights
Newark to Burbank flights
Dulles Intl to San Francisco flights
LaGuardia to San Francisco flights
Dulles Intl to Las Vegas flights
Seattle to San Diego flights
O'Hare Intl to San Francisco flights
Baltimore to Los Angeles flights
Newark to Santa Ana flights
Portland to Los Angeles flights
Hobby to Los Angeles flights
John F Kennedy Intl to San Diego flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$45Average$114FlexibilityNo cancel feeOn-time62%
DeltaCheapest$159Average$299FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$388FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$224Average$307FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.