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Ontario

$57+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ONT
Jun 9 — Jun 161
Tue 6/9
Tue 6/16
1 adult, Economy
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Cheapflights Tip: The best prices from Salt Lake City to Ontario are usually found in February or April, booked 67 days in advance, depart on a Thursday or Saturday and return on a Saturday

Cheap 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 May 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:50 pm
SLC
-
ONT
1 stop7h 01m
Frontier
Tue 6/303:34 pm
ONT
-
SLC
1 stop17h 01m
Frontier
Deal found 5/7$112
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/31:32 pm
SLC
-
ONT
1 stop7h 00m
Frontier
Mon 6/83:30 pm
ONT
-
SLC
1 stop17h 05m
Frontier
Deal found 5/5$113
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:32 pm
SLC
-
ONT
1 stop7h 00m
Frontier
Wed 6/34:39 pm
ONT
-
SLC
1 stop15h 51m
Frontier
Deal found 5/9$115
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/221:50 pm
SLC
-
ONT
1 stop26h 18m
Frontier
Tue 6/303:34 pm
ONT
-
SLC
1 stop17h 01m
Frontier
Deal found 5/7$123
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Sun 5/311:32 pm
SLC
-
ONT
1 stop26h 37m
Frontier
Wed 6/34:39 pm
ONT
-
SLC
1 stop15h 51m
Frontier
Deal found 5/8$124
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Tue 6/21:32 pm
SLC
-
ONT
1 stop7h 00m
Frontier
Sat 6/63:30 pm
ONT
-
SLC
1 stop17h 00m
Frontier
Deal found 5/5$147
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/291:32 pm
SLC
-
ONT
1 stop19h 32m
Frontier
Mon 6/13:30 pm
ONT
-
SLC
1 stop17h 00m
Frontier
Deal found 5/7$157
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 6/101:50 pm
SLC
-
ONT
1 stop7h 01m
Frontier
Tue 6/161:33 pm
ONT
-
SLC
1 stop19h 02m
Frontier
Deal found 5/8$159
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:32 pm
SLC
-
ONT
1 stop7h 00m
Frontier
Fri 6/53:30 pm
ONT
-
SLC
1 stop17h 00m
Frontier
Deal found 5/7$166
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:50 pm
SLC
-
ONT
1 stop7h 01m
Frontier
Mon 6/293:34 pm
ONT
-
SLC
1 stop17h 01m
Frontier
Deal found 5/7$169

Find 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 May 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$112
(Kiwi.com)

One-way from

$57
(WAYA)

Popular in

May

Cheapest in

February

Average price

$339

Good round-trip deal

$339 or less

Good one-way deal

$254 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. 8% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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 May 10, 2026.
Use the filters below to find and compare flights from Salt Lake City to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 5/30

6:20 am-12:20 pm

2 stops7h 00m

Ontario

Tue 6/2

11:05 am-6:55 pm

2 stops6h 50m

$297

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 6/11

8:00 am-8:50 am

Nonstop1h 50m

Ontario

Sun 6/14

6:00 am-8:51 am

Nonstop1h 51m

$339

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 7/24

8:00 am-8:47 am

Nonstop1h 47m

Ontario

Mon 7/27

9:40 am-12:28 pm

Nonstop1h 48m

$339

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 6/4

10:45 pm-11:34 pm

Nonstop1h 49m

Ontario

Sun 6/7

6:00 am-8:50 am

Nonstop1h 50m

$339

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 8/8

11:16 am-12:05 pm

Nonstop1h 49m

Ontario

Sun 8/16

12:55 pm-3:43 pm

Nonstop1h 48m

$339

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 7/2

11:19 am-12:10 pm

Nonstop1h 51m

Ontario

Mon 7/6

5:21 pm-8:17 pm

Nonstop1h 56m

$340

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 6/5

5:35 am-11:20 am

2 stops6h 45m

Ontario

Sat 6/13

3:50 pm-12:10 am

2 stops7h 20m

$348

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 7/16

10:59 pm-11:48 pm

Nonstop1h 49m

Ontario

Sun 7/19

1:00 pm-3:47 pm

Nonstop1h 47m

$349
Quickest round-trip

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Wed 6/3

10:45 pm-11:34 pm

Nonstop1h 49m

Ontario

Wed 6/10

1:00 pm-3:45 pm

Nonstop1h 45m

$389

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 5/29

7:15 am-3:09 pm

1 stop8h 54m

Ontario

Sat 5/30

11:15 am-5:31 pm

1 stop5h 16m

$423

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/9

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Salt Lake City-Ontario flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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?

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 66 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, February is the cheapest month in which you can book a flight from Salt Lake City to Ontario (average of $220). Flying from Salt Lake City to Ontario in May is currently the most expensive (average of $339). 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 May 10, 2026.

It’s typically best to fly out from Salt Lake City to Ontario at noon. Doing so could potentially save you 71% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost to fly round-trip from Salt Lake City to Ontario?

The best insider tips for Salt Lake City to Ontario flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Salt Lake City to Ontario trip
Our travel experts
Bill Fink

Bill Fink

Expert on ONT

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

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 May 10, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andFrontier 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
7.9
Good
4,301 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
7.9
Good
4,301 reviews
Southwest
7.9
Good
4,301 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,452 reviews
Southwest
7.9
Good
4,301 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.6
Fair
2,955 reviews
Southwest
7.9
Good
4,301 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 8 flights from Salt Lake City to Ontario, all of which are around 1h 49m 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 1 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 1h 50m. Southwest provides one of the quickest options available for as low as $339. 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 $69, 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 75% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Salt Lake City to Ontario one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $55. However, be on the lookout for offers from Southwest and Delta, as they are both options that can get you from Salt Lake City to Ontario for a low price.

  • 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: LATAM Airlines (100%), Scandinavian Airlines (100%), Air France( 96%).

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

    On average you can expect to pay $475 for a flight from Salt Lake City to Ontario. The cheapest flight overall is $99 while the most popular route, (Salt Lake City - Ontario) is currently priced at $224.

  • 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, February is the cheapest month in which you can book a flight from Salt Lake City to Ontario (average of $220). Flying from Salt Lake City to Ontario in May is currently the most expensive (average of $339). 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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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 May 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$69Average$184FlexibilityNo cancel feeOn-time62%
DeltaCheapest$199Average$339FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$214Average$275FlexibilityNo cancel feeOn-time63%

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