HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$79+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ONT
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$156
(Cheapflightsfares)

One-way from

$79
(Frontier)

Popular in

November

Cheapest in

September

Average price

$169

Good round-trip deal

$239 or less

Good one-way deal

$148 or less
Provider with most accurate pricing for Salt Lake City-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Salt Lake City-Los Angeles flights.
Search Deals
From Utah to Ontario
Search Deals
One-way flight from Utah to Ontario
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 28, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/248:19 pmSLC - ONT
1 stop4h 40mFrontier
Wed 4/3012:59 amONT - SLC
1 stop5h 38mFrontier
Deal found 3/27$156
This Expedia deal was found by Cheapflights users on 3/27. 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.
Tue 4/296:00 amSLC - ONT
1 stop6h 20mMultiple Airlines
Tue 5/64:29 pmONT - SLC
1 stop5h 23mMultiple Airlines
Deal found 3/27$216
This Southwest deal was found by Cheapflights users on 3/27. 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.
Mon 5/265:55 amSLC - ONT
1 stop4h 15mSouthwest
Thu 5/298:10 amONT - SLC
1 stop3h 45mSouthwest
Deal found 3/27$217
This Delta deal was found by Cheapflights users on 3/27. 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.
Fri 10/38:10 amSLC - ONT
Nonstop1h 48mDelta
Wed 10/86:00 amONT - SLC
Nonstop1h 51mDelta
Deal found 3/27$239
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/293:29 pmSLC - ONT
1 stop3h 58mAmerican Airlines
Tue 5/61:14 pmONT - SLC
1 stop3h 58mAmerican Airlines
Deal found 3/27$259
This Hawaiian Airlines deal was found by Cheapflights users on 3/27. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/64:40 pmSLC - ONT
1 stop8h 18mHawaiian Airlines
Tue 5/1311:46 amONT - SLC
1 stop8h 08mHawaiian Airlines
Deal found 3/27$264
This Alaska Airlines deal was found by Cheapflights users on 3/28. 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.
Fri 5/307:33 pmSLC - ONT
1 stop16h 24mAlaska Airlines
Mon 6/27:20 pmONT - SLC
2 stops17h 04mAlaska Airlines
Deal found 3/28$369
This United Airlines deal was found by Cheapflights users on 3/27. 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 4/107:05 amSLC - ONT
1 stop6h 33mUnited Airlines
Sat 4/121:35 pmONT - SLC
1 stop6h 11mUnited Airlines
Deal found 3/27$377

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 March 28, 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 4/24

8:19 pm-11:59 pm

1 stop4h 40m

Ontario

Wed 4/30

12:59 am-7:37 am

1 stop5h 38m

$156

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 4/29

6:00 am-11:20 am

1 stop6h 20m

Ontario

Tue 5/6

4:29 pm-10:52 pm

1 stop5h 23m

$216

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Mon 5/26

5:55 am-9:10 am

1 stop4h 15m

Ontario

Thu 5/29

8:10 am-12:55 pm

1 stop3h 45m

$217

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 6/27

8:00 am-8:50 am

Nonstop1h 50m

Ontario

Tue 7/1

9:40 am-12:30 pm

Nonstop1h 50m

$239

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 4/29

3:29 pm-6:27 pm

1 stop3h 58m

Ontario

Tue 5/6

1:14 pm-6:12 pm

1 stop3h 58m

$259

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 5/6

4:40 pm-11:58 pm

1 stop8h 18m

Ontario

Tue 5/13

11:46 am-8:54 pm

1 stop8h 08m

$264

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 9/4

8:35 am-12:33 pm

1 stop4h 58m

Ontario

Sun 9/7

6:00 am-11:33 am

1 stop4h 33m

$329

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 5/30

7:33 pm-10:57 am

1 stop16h 24m

Ontario

Mon 6/2

7:20 pm-1:24 pm

2 stops17h 04m

$369

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 5/7

4:13 pm-11:08 pm

1 stop7h 55m

$79

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 6/12

6:30 am-12:14 pm

1 stop6h 44m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 15 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 $326). 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 March 28, 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.

Weekly flight availability from Utah to Ontario

Explore weekly flight availability from Utah to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 28, 2025.

The most flights from USUT to ONT are scheduled on a Wednesday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

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 March 28, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Hawaiian Airlines
7.9
Good
2,336 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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 16 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 $79. However, be on the lookout for offers from United Airlines and Southwest, 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%), KLM( 99%).

  • 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 $156 on average our data indicates $272 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 $326). 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 Las Vegas flights
Newark to Las Vegas flights
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
LaGuardia to Las Vegas flights
O'Hare Intl to Las Vegas flights
LaGuardia to Los Angeles flights
Dallas/Fort Worth to Las Vegas flights
Seattle to Las Vegas flights
Newark to San Francisco flights
Denver to Las Vegas flights
Los Angeles to Las Vegas flights
Seattle to Los Angeles flights
Burbank to Las Vegas flights
Boston to Las Vegas flights
Dulles Intl to Las Vegas flights
San Francisco to Los Angeles flights
Boston to Los Angeles flights
Atlanta to Las Vegas flights
San Francisco to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Hobby to Las Vegas flights
O'Hare Intl to Los Angeles flights
Dallas/Fort Worth to Los Angeles flights
San Jose to Los Angeles flights
Minneapolis to Las Vegas flights
John F Kennedy Intl to San Diego flights
Los Angeles to San Francisco flights
Reagan-National to Las Vegas flights
Seattle to San Diego flights
Reagan-National to Los Angeles flights
Los Angeles to San Jose flights
Newark to Burbank flights
Santa Ana to Las Vegas flights
Dulles Intl to Los Angeles flights
Newark to San Diego flights
Hobby to Los Angeles flights
George Bush Intcntl to Las Vegas flights
Los Angeles to Oakland flights
San Francisco to Ontario flights
LaGuardia to San Francisco flights
Dulles Intl to San Francisco flights
Baltimore to Las Vegas flights
Seattle to Santa Ana flights
Oakland to Las Vegas flights
Detroit to Las Vegas flights
Portland to Los Angeles flights
Seattle to Burbank flights
Oakland to Los Angeles flights
Baltimore to Los Angeles flights

Top 5 airlines flying from Utah to Ontario

Discover the top 5 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$91FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$48Average$73FlexibilityNo cancel feeOn-time65%
DeltaCheapest$138Average$288FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$237Average$308FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$242Average$359FlexibilityNo cancel feeOn-time71%
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.