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$73+ Cheap flights from Salt Lake City to Ontario (SLC - 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ONT
Aug 16 — Aug 231
Sat 8/16
Sat 8/23
1 adult, Economy
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Cheapflights Tip: The best prices from Salt Lake City to Ontario are usually found in January or September, booked 77 days in advance, depart on a Sunday or Thursday and return on a Thursday

Cheap flight deals from Salt Lake City to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Salt Lake City (SLC) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 11, 2025.

Round-trip from

$145
(CheapOair)

One-way from

$73
(CheapOair)

Popular in

November

Cheapest in

January

Average price

$239

Good round-trip deal

$239 or less

Good one-way deal

$278 or less
From Salt Lake City to Ontario
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One-way flight from Salt Lake City to Ontario
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Highest demand for flights based on searches. 12% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 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 Salt Lake City to Ontario.
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Price to beat on a one-way flight from Salt Lake City to Ontario.
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Find flight deals from Salt Lake City to Ontario

Cheapest flights from Salt Lake City to Ontario
Explore the most affordable flight options available from Salt Lake City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2025.

This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/62:07 pmSLC - ONT
1 stop8h 49mFrontier
Mon 9/82:45 pmONT - SLC
1 stop25h 30mFrontier
Deal found 8/9$145
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/812:55 pmSLC - ONT
1 stop9h 01mFrontier
Mon 9/1510:28 pmONT - SLC
1 stop17h 47mFrontier
Deal found 8/9$150
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:40 pmSLC - ONT
1 stop26h 16mFrontier
Fri 9/1210:28 pmONT - SLC
1 stop19h 15mFrontier
Deal found 8/9$154
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:00 amSLC - ONT
1 stop16h 50mFrontier
Mon 9/82:45 pmONT - SLC
1 stop25h 30mFrontier
Deal found 8/9$155
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/268:00 amSLC - ONT
1 stop16h 50mFrontier
Fri 9/510:28 pmONT - SLC
1 stop13h 44mFrontier
Deal found 8/9$159
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1912:52 pmSLC - ONT
1 stop11h 58mFrontier
Thu 8/216:00 amONT - SLC
1 stop3h 52mFrontier
Deal found 8/9$160
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/167:38 pmSLC - ONT
1 stop13h 09mFrontier
Sun 10/196:44 pmONT - SLC
1 stop12h 49mFrontier
Deal found 8/9$163
This Mytrip deal was found by Cheapflights users on 8/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/78:40 pmSLC - ONT
1 stop11h 37mFrontier
Sun 9/1410:28 pmONT - SLC
1 stop11h 14mFrontier
Deal found 8/8$164
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/177:44 pmSLC - ONT
1 stop17h 09mFrontier
Fri 8/2212:59 amONT - SLC
1 stop20h 25mFrontier
Deal found 8/9$165
This CheapOair deal was found by Cheapflights users on 8/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/115:03 pmSLC - ONT
1 stop24h 17mFrontier
Wed 8/137:22 pmONT - SLC
1 stop22h 27mFrontier
Deal found 8/9$169
This Frontier deal was found by Cheapflights users on 8/9. 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.
Mon 8/185:03 pmSLC - ONT
1 stop4h 49mFrontier
Mon 9/112:59 amONT - SLC
1 stop9h 53mFrontier
Deal found 8/9$170
This FlightHub deal was found by Cheapflights users on 8/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:10 pmSLC - ONT
1 stop5h 46mFrontier
Thu 9/119:16 amONT - SLC
1 stop5h 04mFrontier
Deal found 8/9$172

Cheapflights Fare Finder

 
Customize your flight search to find flights from Salt Lake City 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 11, 2025.
Use the filters below to find and compare flights from Salt Lake City to Ontario that are best for you.

Fly from

Salt Lake City

Fly to

Ontario

Route

Depart

Return

Price

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 9/6

2:07 pm-9:56 pm

1 stop8h 49m

Ontario

Mon 9/8

2:45 pm-5:15 pm

1 stop25h 30m

$145

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Mon 9/8

12:55 pm-8:56 pm

1 stop9h 01m

Ontario

Mon 9/15

10:28 pm-5:15 pm

1 stop17h 47m

$150

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Mon 9/8

8:40 pm-9:56 pm

1 stop26h 16m

Ontario

Fri 9/12

10:28 pm-6:43 pm

1 stop19h 15m

$154

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 9/3

8:00 am-11:50 pm

1 stop16h 50m

Ontario

Mon 9/8

2:45 pm-5:15 pm

1 stop25h 30m

$155

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 8/26

8:00 am-11:50 pm

1 stop16h 50m

Ontario

Fri 9/5

10:28 pm-1:12 pm

1 stop13h 44m

$159

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 8/19

12:52 pm-11:50 pm

1 stop11h 58m

Ontario

Thu 8/21

6:00 am-10:52 am

1 stop3h 52m

$160

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 10/16

7:38 pm-7:47 am

1 stop13h 09m

Ontario

Sun 10/19

6:44 pm-8:33 am

1 stop12h 49m

$163

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sun 9/7

8:40 pm-7:17 am

1 stop11h 37m

Ontario

Sun 9/14

10:28 pm-10:42 am

1 stop11h 14m

$164

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sun 8/17

7:44 pm-11:53 am

1 stop17h 09m

Ontario

Fri 8/22

12:59 am-10:24 pm

1 stop20h 25m

$165

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 8/21

7:34 pm-7:33 am

1 stop12h 59m

Ontario

Tue 9/2

12:59 am-10:24 pm

1 stop20h 25m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

Showing 1-10 of 22 results
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The best insider tips for Salt Lake City to Ontario flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Salt Lake City to Ontario trip
Airports
SLC

SLC's expanded security checkpoint ensures a smooth departure. Enjoy local dining options like craft beer and tacos at The Plaza post-security.

Read more about SLCby Ramsey Qubein
ONT

For arrivals at ONT, rental cars are convenient with ten major companies on-site, offering quick access to I-10 for easy travel.

Read more about ONTby Bill Fink
Our travel experts
Bill Fink

Bill Fink

Expert on ONT

Bill Fink

Bill Fink

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on SLC

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from Salt Lake City to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Salt Lake City 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 Salt Lake City to Ontario

How far ahead should I book a flight from Salt Lake City to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Salt Lake City to Ontario. Price data was last updated on August 8, 2025.

The price you pay for your flight from Salt Lake City to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 77 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Salt Lake City to Ontario?

Currently, August is the cheapest month in which you can book a flight from Salt Lake City to Ontario (average of $246). Flying from Salt Lake City 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 SLC to ONT?

Find hourly flight availability from Salt Lake City 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 11, 2025.

It’s typically best to fly out from Salt Lake City to Ontario at noon. Doing so could potentially save you 68% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Salt Lake City to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Salt Lake City to Ontario. Price data was last updated on August 3, 2025.

Travelers seeking maximum savings on their Salt Lake City to Ontario flight should consider departing on Saturday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 11, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and Frontier from Salt Lake City to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
7,978 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Frontier
5.8
Fair
3,222 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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 Salt Lake City to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Salt Lake City to Ontario?

    Booking a flight from Salt Lake City (SLC) to Ontario (ONT) is your only option if you wish to fly from Salt Lake City to Ontario. On a typical day, there are 5 flights from Salt Lake City to Ontario, all of which are around 1h 44m for a nonstop flight. You can also purchase a plane ticket from 4 airlines when you book a flight from Salt Lake City to Ontario.

  • How popular is this Salt Lake City to Ontario flight route?

    The Salt Lake City to Ontario flight path was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What is the cheapest airline to fly from Salt Lake City to Ontario round-trip?

    Frontier, at $145, was found to be the cheapest airline from Salt Lake City to Ontario.. Frontier is 43% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Salt Lake City to Ontario?

    Before booking your flight to Ontario from Salt Lake City, check out the most reliable airlines to get you to your destination on time: Air France (98%), SkyWest Airlines (98%), Delta( 89%).

  • What are the cheapest flights from Salt Lake City to Ontario?

    On average you can expect to pay $323 for a flight from Salt Lake City to Ontario. The cheapest flight overall is $199 while the most popular route, (Salt Lake City - Ontario) is currently priced at $154.

  • Can I find deals for flights from Salt Lake City to Ontario that include hotel bookings?

    Yes. In addition to deals on Salt Lake City to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Salt Lake City to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Salt Lake City to Ontario.

  • Can I find deals for business class flights from Salt Lake City to Ontario?

    Yes. Cheapflights offers flight deals from Salt Lake City 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 Salt Lake City to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Salt Lake City to Ontario (average of $246). Flying from Salt Lake City 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 Salt Lake City to Ontario

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Top 4 airlines flying from Salt Lake City to Ontario

Discover the top 4 airlines that operate flights from Salt Lake City 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$67Average$140FlexibilityNo cancel feeOn-time62%
DeltaCheapest$204Average$302FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$214Average$296FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$216Average$388FlexibilityNo cancel feeOn-time71%

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