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$39+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ONT
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$203
(Alaska Airlines)

One-way from

$39
(Trip.com)

Popular in

November

Cheapest in

April

Average price

$143

Good round-trip deal

$143 or less

Good one-way deal

$124 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. 21% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 3/148:40 pmSLC - ONT
1 stop25h 20mAlaska Airlines
Mon 3/176:00 amONT - SLC
1 stop12h 45mAlaska Airlines
Deal found 2/19$203
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Mon 3/175:50 amSLC - ONT
1 stop3h 57mAmerican Airlines
Wed 3/196:10 amONT - SLC
1 stop4h 11mAmerican Airlines
Deal found 2/20$217
This Southwest deal was found by Cheapflights users on 2/20. 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.
Tue 3/113:40 pmSLC - ONT
1 stop3h 40mSouthwest
Fri 3/147:10 pmONT - SLC
1 stop3h 55mSouthwest
Deal found 2/20$232
This Delta deal was found by Cheapflights users on 2/20. 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.
Sat 3/223:40 pmSLC - ONT
Nonstop1h 54mDelta
Sun 3/236:00 amONT - SLC
Nonstop1h 46mDelta
Deal found 2/20$239
This Frontier deal was found by Cheapflights users on 2/20. 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.
Sat 5/312:33 pmSLC - ONT
1 stop9h 54mFrontier
Thu 5/88:24 amONT - SLC
1 stop7h 13mFrontier
Deal found 2/20$250
This United Airlines deal was found by Cheapflights users on 2/19. 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 5/110:55 amSLC - ONT
1 stop5h 14mUnited Airlines
Tue 5/64:15 pmONT - SLC
1 stop5h 00mUnited Airlines
Deal found 2/19$288
This Expedia deal was found by Cheapflights users on 2/19. 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.
Fri 3/148:20 amSLC - ONT
2 stops16h 04mMultiple Airlines
Sat 3/1512:59 amONT - SLC
1 stop5h 59mMultiple Airlines
Deal found 2/19$322
This Hawaiian Airlines deal was found by Cheapflights users on 2/20. 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.
Thu 3/65:54 pmSLC - ONT
1 stop6h 30mHawaiian Airlines
Sun 4/137:00 amONT - SLC
1 stop6h 53mHawaiian Airlines
Deal found 2/20$494

Find flights from Utah to Ontario within your budget

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 February 20, 2025.

Fly from

Utah

Fly to

Ontario

Route

Depart

Return

Price

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 3/14

8:40 pm-9:00 pm

1 stop25h 20m

Ontario

Mon 3/17

6:00 am-7:45 pm

1 stop12h 45m

$203

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Mon 3/17

5:50 am-8:47 am

1 stop3h 57m

Ontario

Wed 3/19

6:10 am-11:21 am

1 stop4h 11m

$217

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 3/11

3:40 pm-6:20 pm

1 stop3h 40m

Ontario

Fri 3/14

7:10 pm-12:05 am

1 stop3h 55m

$232

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 3/22

3:40 pm-4:34 pm

Nonstop1h 54m

Ontario

Sun 3/23

6:00 am-8:46 am

Nonstop1h 46m

$239

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 5/3

12:33 pm-9:27 pm

1 stop9h 54m

Ontario

Thu 5/8

8:24 am-4:37 pm

1 stop7h 13m

$250

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 5/1

10:55 am-3:09 pm

1 stop5h 14m

Ontario

Tue 5/6

4:15 pm-10:15 pm

1 stop5h 00m

$288

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 3/14

8:20 am-11:24 pm

2 stops16h 04m

Ontario

Sat 3/15

12:59 am-7:58 am

1 stop5h 59m

$322

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 3/6

5:54 pm-11:24 pm

1 stop6h 30m

Ontario

Sun 4/13

7:00 am-2:53 pm

1 stop6h 53m

$494

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 4/9

9:26 am-8:19 pm

1 stop11h 53m

$39

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 3/11

3:40 pm-6:20 pm

1 stop3h 40m

$104

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 16 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.

Travel insights for flights from Utah to Ontario

Get recent, data-driven insights about flights from Utah to Ontario including ideal travel times, pricing trends, and more.

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 $315). 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 February 20, 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 February 20, 2025.

The most flights from USUT to ONT are scheduled on a Tuesday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 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 February 20, 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
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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 17 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 $39. 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 (99%), SkyWest Airlines (98%), KLM( 95%).

  • What are the cheapest flights from Utah to Ontario?

    Looking at all options, your cheapest flight can be booked for $53. While the most popular route (Salt Lake City - Ontario) can be booked for $239 on average our data indicates $239 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 $315). 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 6 airlines flying from Utah to Ontario

Discover the top 6 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$92FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$48Average$105FlexibilityNo cancel feeOn-time65%
Breeze AirwaysCheapest$72Average$99FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$132Average$287FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$238Average$309FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$388FlexibilityNo cancel feeOn-time71%
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