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$55+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ONT
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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Cheapflights Tip: The best prices from Salt Lake City to Ontario are usually found in January or June, booked 27 days in advance, depart on a Thursday or Sunday and return on a Thursday

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 November 10, 2025.

This Frontier deal was found by Cheapflights users on 11/9. 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.
Sat 12/67:20 amSLC - ONT
1 stop8h 05mFrontier
Mon 12/156:15 amONT - SLC
1 stop4h 26mFrontier
Deal found 11/9$110
This Frontier deal was found by Cheapflights users on 11/9. 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 12/82:38 pmSLC - ONT
1 stop9h 53mFrontier
Mon 12/156:15 amONT - SLC
1 stop4h 26mFrontier
Deal found 11/9$111
This Frontier deal was found by Cheapflights users on 11/9. 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.
Sat 12/67:20 amSLC - ONT
1 stop8h 05mFrontier
Fri 12/126:15 amONT - SLC
1 stop6h 10mFrontier
Deal found 11/9$124
This Frontier deal was found by Cheapflights users on 11/9. 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.
Fri 12/52:20 pmSLC - ONT
1 stop10h 28mFrontier
Sat 12/63:20 pmONT - SLC
1 stop7h 47mFrontier
Deal found 11/9$126
This Frontier deal was found by Cheapflights users on 11/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/252:22 pmSLC - ONT
1 stop7h 44mFrontier
Thu 12/46:15 amONT - SLC
1 stop6h 28mFrontier
Deal found 11/8$127
This Frontier deal was found by Cheapflights users on 11/9. 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.
Thu 12/42:38 pmSLC - ONT
1 stop7h 39mFrontier
Mon 12/156:15 amONT - SLC
1 stop4h 26mFrontier
Deal found 11/9$128
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:20 amSLC - ONT
1 stop28h 49mFrontier
Sun 12/72:30 pmONT - SLC
1 stop24h 31mFrontier
Deal found 11/8$130
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:20 amSLC - ONT
1 stop28h 49mFrontier
Sat 12/63:20 pmONT - SLC
1 stop7h 47mFrontier
Deal found 11/8$132
This CheapOair deal was found by Cheapflights users on 11/7. 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.
Fri 12/54:56 pmSLC - ONT
1 stop22h 29mFrontier
Fri 12/126:15 amONT - SLC
1 stop6h 10mFrontier
Deal found 11/7$138
This Frontier deal was found by Cheapflights users on 11/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/252:22 pmSLC - ONT
1 stop7h 44mFrontier
Fri 12/56:15 amONT - SLC
1 stop6h 10mFrontier
Deal found 11/8$141
This CheapOair deal was found by Cheapflights users on 11/9. 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 12/116:32 pmSLC - ONT
1 stop20h 53mFrontier
Sun 12/145:18 pmONT - SLC
1 stop17h 23mFrontier
Deal found 11/9$142
This Expedia deal was found by Cheapflights users on 11/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/238:46 pmSLC - ONT
1 stop18h 40mFrontier
Thu 11/276:30 amONT - SLC
1 stop5h 57mFrontier
Deal found 11/9$144

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 November 10, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$110
(Frontier)

One-way from

$55
(Frontier)

Popular in

November

Cheapest in

January

Average price

$525

Good round-trip deal

$259 or less

Good one-way deal

$198 or less
Provider with most accurate pricing for Salt Lake City-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Salt Lake City-Ontario flights.
Search Deals
From Salt Lake City to Ontario
Search Deals
One-way flight from Salt Lake City to Ontario
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Salt Lake City to Ontario.
Search Deals
Price to beat on a one-way flight from Salt Lake City to Ontario.
Search Deals

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 November 10, 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

Mon 11/17

9:28 am-12:51 pm

1 stop4h 23m

Ontario

Mon 11/24

6:30 am-1:37 pm

1 stop6h 07m

$166

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 11/20

10:12 pm-6:53 pm

1 stop21h 41m

Ontario

Sat 11/22

7:08 pm-9:53 am

1 stop13h 45m

$167

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Mon 12/22

1:59 pm-12:12 am

1 stop11h 13m

Ontario

Fri 1/9

6:30 am-1:43 pm

1 stop6h 13m

$200

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 1/27

12:17 pm-8:36 pm

1 stop9h 19m

Ontario

Tue 2/3

4:03 pm-5:34 pm

1 stop24h 31m

$204

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 1/21

9:00 am-3:08 pm

1 stop7h 08m

Ontario

Mon 1/26

6:00 am-2:42 pm

1 stop7h 42m

$204

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 12/23

1:49 pm-5:22 pm

1 stop4h 33m

Ontario

Fri 1/9

6:30 am-1:43 pm

1 stop6h 13m

$204

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Mon 12/8

3:37 pm-11:19 am

1 stop20h 42m

Ontario

Mon 12/15

6:00 am-7:57 pm

1 stop12h 57m

$224

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 2/7

9:00 am-8:36 pm

1 stop12h 36m

Ontario

Thu 2/12

4:02 pm-11:58 pm

1 stop6h 56m

$244

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 11/13

10:20 pm-7:17 am

1 stop9h 57m

Ontario

Sat 11/15

12:05 pm-10:19 pm

1 stop9h 14m

$250

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 12/9

12:54 pm-11:19 am

1 stop23h 25m

Ontario

Fri 12/12

7:33 pm-12:00 pm

1 stop15h 27m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 24 results
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Compare providers for flights from Salt Lake City to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Salt Lake City to Ontario in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Salt Lake City-Ontario flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Salt Lake City-Ontario flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Salt Lake City-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Salt Lake City-Ontario flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Salt Lake City-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 November 7, 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 27 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, January is the cheapest month in which you can book a flight from Salt Lake City to Ontario (average of $48). Flying from Salt Lake City to Ontario in July is currently the most expensive (average of $91). 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 November 10, 2025.

It’s typically best to fly out from Salt Lake City to Ontario at noon. Doing so could potentially save you 67% 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 November 2, 2025.

Travelers seeking maximum savings on their Salt Lake City to Ontario flight should consider departing on Friday 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.

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

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 November 10, 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
4,236 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,236 reviews
Southwest
8.0
Very good
4,236 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
8,003 reviews
Southwest
8.0
Very good
4,236 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,111 reviews
Southwest
8.0
Very good
4,236 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 7 flights from Salt Lake City to Ontario, all of which are around 1h 47m for a nonstop flight. You can also purchase a plane ticket from 3 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.

  • How long is the flight from Salt Lake City to Ontario?

    A quick flight from Salt Lake City to Ontario can take about 4h 23m. Frontier provides one of the quickest options available for as low as $166. Airlines will cover a distance of 557 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Salt Lake City to Ontario round-trip?

    Frontier, at $76, was found to be the cheapest airline from Salt Lake City to Ontario.Alternate airlines to your destination round-trip include Delta and Southwest. Frontier is 72% 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 (100%), SkyWest Airlines (97%), Delta( 94%).

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

    On average you can expect to pay $299 for a flight from Salt Lake City to Ontario. The cheapest flight overall is $172 while the most popular route, (Salt Lake City - Ontario) is currently priced at $110.

  • 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, January is the cheapest month in which you can book a flight from Salt Lake City to Ontario (average of $48). Flying from Salt Lake City to Ontario in July is currently the most expensive (average of $91). 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 3 airlines flying from Salt Lake City to Ontario

Discover the top 3 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 November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$76Average$165FlexibilityNo cancel feeOn-time62%
DeltaCheapest$205Average$302FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$214Average$292FlexibilityNo cancel feeOn-time63%

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