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$61+ Cheap flights from Ontario to Salt Lake City (ONT - SLC)

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SLC
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Salt Lake City are usually found in January or September, booked 90 days in advance, depart on a Thursday or Saturday and return on a Thursday

Cheap flight deals from Ontario to Salt Lake City

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Salt Lake City (SLC). 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 September 11, 2025.

Round-trip from

$127
(Kiwi.com)

One-way from

$61
(Kiwi.com)

Popular in

April

Cheapest in

January

Average price

$204

Good round-trip deal

$259 or less

Good one-way deal

$189 or less
From Ontario to Salt Lake City
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One-way flight from Ontario to Salt Lake City
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Highest demand for flights based on searches. 10% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ontario to Salt Lake City.
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Price to beat on a one-way flight from Ontario to Salt Lake City.
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Find flight deals from Ontario to Salt Lake City

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

This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 10/29:46 pmONT - SLC
1 stop13h 44mFrontier
Mon 10/69:22 amSLC - ONT
1 stop13h 16mFrontier
Deal found 9/10$127
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/1010:30 amONT - SLC
1 stop7h 48mFrontier
Mon 10/1310:05 pmSLC - ONT
1 stop26h 45mFrontier
Deal found 9/10$129
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/147:04 amONT - SLC
1 stop14h 15mFrontier
Fri 10/173:43 pmSLC - ONT
1 stop9h 29mFrontier
Deal found 9/10$134
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Sun 11/212:05 pmONT - SLC
1 stop23h 52mFrontier
Wed 11/512:35 pmSLC - ONT
1 stop12h 15mFrontier
Deal found 9/9$135
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:00 amONT - SLC
1 stop3h 52mFrontier
Tue 10/75:34 pmSLC - ONT
1 stop4h 08mFrontier
Deal found 9/8$142
This CheapOair deal was found by Cheapflights users on 9/10. 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 10/166:53 amONT - SLC
1 stop7h 09mFrontier
Mon 10/2010:05 pmSLC - ONT
1 stop26h 45mFrontier
Deal found 9/10$143
This CheapOair deal was found by Cheapflights users on 9/11. 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 9/208:59 pmONT - SLC
1 stop9h 33mFrontier
Mon 9/228:40 pmSLC - ONT
1 stop26h 16mFrontier
Deal found 9/11$144
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:28 pmONT - SLC
1 stop13h 44mFrontier
Mon 9/299:45 pmSLC - ONT
1 stop23h 09mFrontier
Deal found 9/10$145
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:00 amONT - SLC
1 stop3h 42mFrontier
Mon 9/224:02 pmSLC - ONT
1 stop4h 52mFrontier
Deal found 9/10$150
This Mytrip deal was found by Cheapflights users on 9/8. 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.
Fri 9/1210:28 pmONT - SLC
1 stop13h 44mFrontier
Tue 9/161:42 pmSLC - ONT
1 stop7h 12mFrontier
Deal found 9/8$151
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:05 amONT - SLC
1 stop4h 37mFrontier
Thu 11/68:10 pmSLC - ONT
1 stop4h 40mFrontier
Deal found 9/10$152
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/111:37 pmONT - SLC
1 stop4h 06mFrontier
Tue 10/145:34 pmSLC - ONT
1 stop4h 08mFrontier
Deal found 9/10$153

Cheapflights Fare Finder

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

Fly from

Ontario

Fly to

Salt Lake City

Route

Depart

Return

Price

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 9/25

9:46 pm-12:30 pm

1 stop13h 44m

Salt Lake City

Sun 9/28

8:40 pm-8:56 pm

1 stop25h 16m

$143

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Tue 10/7

10:40 am-4:10 pm

1 stop4h 30m

Salt Lake City

Tue 10/7

7:10 pm-10:45 pm

1 stop4h 35m

$179

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 9/18

9:16 am-3:20 pm

1 stop5h 04m

Salt Lake City

Mon 9/22

12:54 pm-11:38 pm

2 stops11h 44m

$198

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Tue 9/30

2:55 pm-10:10 pm

2 stops6h 15m

Salt Lake City

Wed 10/1

4:20 pm-10:05 pm

1 stop6h 45m

$202

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 9/25

8:59 pm-7:32 am

1 stop9h 33m

Salt Lake City

Sat 9/27

7:38 pm-7:23 am

2 stops12h 45m

$214

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 11/15

1:20 pm-4:07 pm

Nonstop1h 47m

Salt Lake City

Sat 11/22

8:45 pm-9:35 pm

Nonstop1h 50m

$219

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 10/24

6:00 am-8:50 am

Nonstop1h 50m

Salt Lake City

Fri 11/7

8:35 pm-9:20 pm

Nonstop1h 45m

$219

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 11/5

9:55 am-6:50 pm

1 stop7h 55m

$73

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 11/19

5:55 am-11:35 am

1 stop4h 40m

$73

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Tue 11/11

9:55 am-6:50 pm

1 stop7h 55m

$73

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 17 results
1
2

The best insider tips for Ontario to Salt Lake City 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 Ontario to Salt Lake City trip
Airports
ONT

ONT's TSA security is smoother and quicker than LAX, making it ideal for weekday business travelers. Plan ahead for a stress-free departure.

Read more about ONTby Bill Fink
SLC

Use the TRAX light rail for quick access to downtown Salt Lake City from SLC airport. It's efficient and convenient for arrivals.

Read more about SLCby Ramsey Qubein
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 Ontario to Salt Lake City

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

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Salt Lake City. Price data was last updated on August 29, 2025.

The price you pay for your flight from Ontario to Salt Lake City may vary depending on when you book. For the best chance of a lower fare, look to book 90 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 Ontario to Salt Lake City?

Currently, October is the cheapest month in which you can book a flight from Ontario to Salt Lake City (average of $277). Flying from Ontario to Salt Lake City in March is currently the most expensive (average of $417). 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 ONT to SLC?

Find hourly flight availability from Ontario to Salt Lake City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 6% on flights from Ontario to Salt Lake City by exploring options for tickets in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Salt Lake City. Price data was last updated on September 7, 2025.

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

Reviews of airlines servicing Salt Lake City

Get insights into the airlines that provide service to Salt Lake City. 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 Salt Lake City. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from Ontario to Salt Lake City. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

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
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

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.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

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
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

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 Ontario to Salt Lake City. 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 Ontario to Salt Lake City?

    Salt Lake City is the airport most travelers will use when flying to Salt Lake City from Ontario. Booking flights from Ontario (ONT) to Salt Lake City (SLC) should be relatively easy as there are 5 daily flights to Salt Lake City from 4 different airlines. 1h 45m is how long a flight from Ontario to Salt Lake City will take if you book a nonstop flight.

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

    This flight path from Ontario to Salt Lake City was viewed by 6 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 Ontario to Salt Lake City?

    Departing from Ontario to Salt Lake City will take you 4h 30m. The distance from Ontario to Salt Lake City is about 557 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Frontier ($78), Delta ($199), and Southwest ($202) offers the cheapest pricing from Ontario to Salt Lake City. Users have found that Frontier is 70% cheaper than the other options available to this destination.

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

    Consider Air France (97%), Delta (94%) or Aeromexico (94%) when booking your flight. These represent the most reliable airlines when flying from Ontario to Salt Lake City.

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

    On average you can expect to pay $697 for a flight from Ontario to Salt Lake City. The cheapest flight overall is $144 while the most popular route, (Ontario - Salt Lake City) is currently priced at $143.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Ontario to Salt Lake City (average of $277). Flying from Ontario to Salt Lake City in March is currently the most expensive (average of $417). 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

Traveling to a place near Salt Lake City?

Book flights to Salt Lake City if you plan to visit one of these locations
Bountiful
Midvale
Lehi
Farmington
Layton
Logan
West Valley City
Evanston
West Jordan
South Jordan
Draper
Sandy

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Alternative routes for Ontario to Salt Lake City

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Top 4 airlines flying from Ontario to Salt Lake City

Discover the top 4 airlines that operate flights from Ontario to Salt Lake City. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$183FlexibilityNo cancel feeOn-time62%
DeltaCheapest$199Average$309FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$202Average$315FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$226Average$322FlexibilityNo cancel feeOn-time71%

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