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$80+ 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ONT
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$170
(Frontier)

One-way from

$80
(Frontier)

Popular in

November

Cheapest in

September

Average price

$138

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.
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Provider most trusted by Cheapflights users for Salt Lake City-Los Angeles flights.
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From Utah to Ontario
Search Deals
One-way flight from Utah to Ontario
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Frontier deal was found by Cheapflights users on 4/30. 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.
Wed 5/144:13 pmSLC - ONT
1 stop7h 55mFrontier
Fri 5/1612:16 pmONT - SLC
1 stop11h 19mFrontier
Deal found 4/30$180
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/254:39 pmSLC - ONT
1 stop7h 06mUnited Airlines
Thu 6/265:05 amONT - SLC
1 stop7h 12mUnited Airlines
Deal found 4/30$235
This Delta deal was found by Cheapflights users on 4/30. 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.
Fri 5/3011:25 amSLC - ONT
Nonstop1h 50mDelta
Fri 6/61:10 pmONT - SLC
Nonstop1h 45mDelta
Deal found 4/30$239
This Southwest deal was found by Cheapflights users on 4/29. 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 7/36:10 amSLC - ONT
1 stop5h 15mSouthwest
Mon 7/77:35 pmONT - SLC
1 stop4h 30mSouthwest
Deal found 4/29$247
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/118:47 amSLC - ONT
1 stop4h 13mAmerican Airlines
Tue 6/174:50 pmONT - SLC
1 stop3h 47mAmerican Airlines
Deal found 4/30$259
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/303:46 pmSLC - ONT
2 stops8h 00mAlaska Airlines
Sat 5/3111:51 amONT - SLC
1 stop5h 53mAlaska Airlines
Deal found 4/30$329
This Orbitz deal was found by Cheapflights users on 4/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/69:10 amSLC - ONT
2 stops15h 48mMultiple Airlines
Thu 5/812:59 amONT - SLC
1 stop5h 38mMultiple Airlines
Deal found 4/30$387
This lol.travel deal was found by Cheapflights users on 4/30. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/223:37 pmSLC - ONT
1 stop8h 09mHawaiian Airlines
Sun 5/254:45 pmONT - SLC
1 stop5h 33mHawaiian Airlines
Deal found 4/30$518

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 May 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

Wed 5/14

4:13 pm-11:08 pm

1 stop7h 55m

Ontario

Fri 5/16

12:16 pm-12:35 am

1 stop11h 19m

$180

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 5/21

4:50 pm-10:30 pm

2 stops6h 40m

Ontario

Tue 5/27

6:45 am-2:30 pm

1 stop6h 45m

$198

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 6/25

4:39 pm-10:45 pm

1 stop7h 06m

Ontario

Thu 6/26

5:05 am-1:17 pm

1 stop7h 12m

$235

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 5/30

11:25 am-12:15 pm

Nonstop1h 50m

Ontario

Fri 6/6

1:10 pm-3:55 pm

Nonstop1h 45m

$239

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 6/11

8:47 am-12:00 pm

1 stop4h 13m

Ontario

Tue 6/17

4:50 pm-9:37 pm

1 stop3h 47m

$259

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 5/30

3:46 pm-10:46 pm

2 stops8h 00m

Ontario

Sat 5/31

11:51 am-6:44 pm

1 stop5h 53m

$329

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 5/6

9:10 am-11:58 pm

2 stops15h 48m

Ontario

Thu 5/8

12:59 am-7:37 am

1 stop5h 38m

$387

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 5/22

3:37 pm-10:46 pm

1 stop8h 09m

Ontario

Sun 5/25

4:45 pm-11:18 pm

1 stop5h 33m

$518

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 5/21

4:13 pm-11:08 pm

1 stop7h 55m

$80

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 7/8

5:15 am-8:55 am

1 stop4h 40m

$97

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 13 results
1
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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 $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 May 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.

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 May 1, 2025.

The most flights from USUT to ONT are scheduled on a Wednesday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 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 May 1, 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
9,972 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

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
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

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
4,294 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

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
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

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
2,408 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

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 15 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 $80. 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: SkyWest Airlines (98%), Air France (98%), 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 $191 on average our data indicates $248 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

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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$43Average$104FlexibilityNo cancel feeOn-time62%
DeltaCheapest$159Average$297FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$388FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$224Average$307FlexibilityNo cancel feeOn-time63%

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