SLC - ONT

$66 Find Cheap Flights from Salt Lake City to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Salt Lake City to Ontario departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$127
Typical prices: $217-$388
Frontier
Tue 8/25Tue 9/1
SLC - ONT • 1 stop
Cheapest non-stop
$298
Typical prices: $299-$469
Delta
Thu 8/20Mon 8/24
SLC - ONT • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier Economy Bundle adds a carry-on and seat choice for budget-friendly value.
Delta offers free Wi-Fi for SkyMiles members on domestic flights from Salt Lake City.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
You can fly direct with Delta. Average duration is 1h 50m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $190 (round-trip)
Shortest trip • 4h 07m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
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Flight Deals

Cheap Flights from Salt Lake City to Ontario (SLC-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Salt Lake City to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Salt Lake City to Ontario

Tue, Aug 25 - Tue, Sep 1
Frontier Logo
7:08 pm - 11:50 pm
SLC
-
ONT
5h 42m
1 stop
Frontier Logo
7:56 pm - 7:31 am
ONT
-
SLC
10h 35m
1 stop
$127Frontier
Thu, Aug 13 - Thu, Aug 20
Frontier Logo
8:16 am - 11:50 pm
SLC
-
ONT
16h 34m
1 stop
Frontier Logo
10:49 am - 11:59 pm
ONT
-
SLC
12h 10m
1 stop
$128Frontier
Wed, Aug 12 - Sat, Aug 22
Frontier Logo
3:41 pm - 11:50 pm
SLC
-
ONT
9h 09m
1 stop
Frontier Logo
6:00 am - 11:59 pm
ONT
-
SLC
16h 59m
1 stop
$129Frontier
Sat, Aug 15 - Sat, Aug 22
Frontier Logo
6:05 am - 11:50 pm
SLC
-
ONT
18h 45m
1 stop
Frontier Logo
6:00 am - 11:59 pm
ONT
-
SLC
16h 59m
1 stop
$130Frontier
Wed, Aug 5 - Tue, Aug 25
Frontier Logo
3:41 pm - 10:04 am
SLC
-
ONT
19h 23m
1 stop
Frontier Logo
7:56 pm - 7:31 am
ONT
-
SLC
10h 35m
1 stop
$132Frontier
Tue, Sep 8 - Tue, Sep 15
Frontier Logo
7:08 pm - 1:57 pm
SLC
-
ONT
19h 49m
1 stop
Frontier Logo
2:55 pm - 12:24 am
ONT
-
SLC
8h 29m
1 stop
$138Frontier
Wed, Aug 5 - Tue, Aug 25
Frontier Logo
3:41 pm - 10:04 am
SLC
-
ONT
19h 23m
1 stop
Frontier Logo
7:56 pm - 7:31 am
ONT
-
SLC
10h 35m
1 stop
$150Frontier
Thu, Aug 13 - Mon, Aug 17
Frontier Logo
8:16 am - 11:50 pm
SLC
-
ONT
16h 34m
1 stop
Frontier Logo
6:00 am - 2:55 pm
ONT
-
SLC
7h 55m
1 stop
$151Frontier
Sun, Aug 16 - Wed, Aug 19
Frontier Logo
8:16 am - 10:04 am
SLC
-
ONT
26h 48m
1 stop
Frontier Logo
7:56 pm - 7:31 am
ONT
-
SLC
10h 35m
1 stop
$155Frontier
Sun, Aug 16 - Sat, Aug 22
Frontier Logo
8:16 am - 10:04 am
SLC
-
ONT
26h 48m
1 stop
Frontier Logo
7:56 pm - 7:31 am
ONT
-
SLC
10h 35m
1 stop
$160Frontier
Booking Insights

KAYAK's insights & trends for Salt Lake City to Ontario flights

Get data-powered insights and trends into flights from Salt Lake City to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Salt Lake City to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Salt Lake City to Ontario departing in August.

What’s the cheapest day of the week to fly from Salt Lake City to Ontario?

The average price of all round-trip flights from Salt Lake City to Ontario clicked on KAYAK for each day over the last 12 months.

For Salt Lake City to Ontario, Saturday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Ontario back to Salt Lake City, the best deals are generally found on Thursday, with Monday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Salt Lake City to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Salt Lake City to Ontario is April, where tickets cost $244 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $419 and $389 respectively.

Can I save money by flying with a layover from Salt Lake City to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $360 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Salt Lake City to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Salt Lake City to Ontario, you should book around 2 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Salt Lake City to Ontario

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta and Frontier

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Jennifer Simonson

Jennifer Simonson

Expert on ONT

Jennifer Simonson is driven by her lifelong commitment to exploring the globe. Her insatiable curiosity had led her to immerse herself into diverse locations like Oklahoma City and Pismo. Her hotel recommendations are the result of the myriad hotels she's stayed at across her travels. Along her journey, she cherishes engaging conversations with locals, indulging in the finest ice cream, trying her hand at surfing, and embarking on nature-filled hikes.

Harriet Baskas

Harriet Baskas

Expert on SLC

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low season

June

Cheapest flight

$66
Best time to beat the crowds but there is an average 39% increase in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Salt Lake City to Ontario

When to book flights from Salt Lake City to Ontario

Are your dates flexible? Find out the best times to travel from Salt Lake City to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Salt Lake City to Ontario

  • Delta Airlines, which has regular direct flights from Salt Lake City to Ontario, offers a selection of special meals onboard for travelers with special dietary needs. They include low-sodium, diabetic, gluten-free, kosher, vegetarian, vegan, and infant meals. You should make your meal request when booking your flight or contact the airline at least 72 hours in advance for availability.

    Travelers with reduced mobility flying through Salt Lake City International Airport (SLC) can access different services and amenities, including accessible restrooms, wheelchairs with attendants, boarding assistance, and elevators. The airport is also part of the Hidden Disabilities Sunflower for travelers with hidden disabilities.

  • How do I get to downtown Ontario from Ontario International Airport?

    You can take the OmniTrans Bus Route 61 to downtown Ontario and other parts of the city. The journey time is around 25 minutes. Several Southern California bus and rail providers offer connections from the airport to downtown California. Other options include shared ride shuttles, car rentals, taxis, and hotel shuttles.

  • Which airlines fly Business Class from Salt Lake City to Ontario?

    Consider booking Delta Airlines, United Airlines, American Airlines, and Alaska Airlines for Business Class flights from Salt Lake City to Ontario. Flying Business Class on these airlines offers several benefits, including dedicated service, priority service, onboard dining, comfortable seating, special baggage allowance, and access to specific lounges.

  • What lounges are available at Salt Lake City International Airport (SLC)?

    Salt Lake City International Airport (SLC) airport has one lounge available for travelers; the Delta Sky Club at Concourse A, Level 2. The lounge, accessible through lounge membership programs, features comfortable seating, complimentary food and snacks, free Wi-Fi, shower areas, sleeping areas, flight monitors, magazines, and newspapers.

  • What is the cheapest flight from Salt Lake City to Ontario?

    In the last 5 days, the lowest price for a flight from Salt Lake City to Ontario was $66 for a one-way ticket and $127 for a round-trip.

  • Do I need a passport to fly between Salt Lake City and Ontario?

    No, a passport isn't needed to fly from Salt Lake City to Ontario. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from Salt Lake City to Ontario?

    Delta, American Airlines, Alaska Airlines, and JetBlue offer inflight Wi-Fi service on the Salt Lake City to Ontario flight route.

  • Which aircraft models fly most regularly from Salt Lake City to Ontario?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Salt Lake City to Ontario flight route.

  • Which airline alliances offer flights from Salt Lake City to Ontario?

    SkyTeam is the only airline alliance operating flights between Salt Lake City and Ontario.

  • On which days can I fly direct from Salt Lake City to Ontario?

    There are nonstop flights from Salt Lake City to Ontario on a daily basis.

  • Which is the best airline for flights from Salt Lake City to Ontario, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Salt Lake City to Ontario are Southwest and Delta. With an average price for the route of $277 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $362 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Salt Lake City to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Salt Lake City to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Salt Lake City to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Salt Lake City is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Salt Lake City to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Salt Lake City with another airline. Booking your flights between Salt Lake City and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Salt Lake City to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Salt Lake City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Salt Lake City to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $339 or less round-trip.
  • In which other cities can I fly to from Tokyo?
  • From Tokyo, you can extend your trip to domestic destinations like Osaka, Sapporo, Fukuoka, Nagoya, Hiroshima, Niigata, Kumamoto, Toyama, Oita, Okinawa, Sendai, and Matsuyama or international destinations like Sydney, Bangkok, Kuala Lumpur, Beijing, Shanghai, Singapore, Los Angeles, New York City, Thailand, Paris, London, Frankfurt, Auckland, and Melbourne.
  • The Salt Lake City (SLC) to Ontario (ONT) flight route features several direct and connecting flights. If you opt for a connecting flight, you’ll likely have a layover at Denver (DEN), San Francisco (SFO), Las Vegas (LAS), Phoenix (PHX), Seattle (SEA), New York (JFK), Oakland (OAK), and Sacramento (SMF).
  • If you have a minor flying alone from Salt Lake City to Ontario, you can book them with Delta Airlines, which offers a special Unaccompanied Minor service on its direct flights. This service is available for children aged 5 to 17. Your young one will be escorted and receive special assistance throughout the flight.
  • Southwest Airlines, American Airlines, United Airlines, and Delta Airlines have the best carry-on weight allowance for flights from Salt Lake City to Ontario. There is no maximum carry-on weight limit on these airlines. Your carry-on bag and personal item should meet specific dimensions, which vary depending on the airline, and fit in the overhead storage unit. Your personal item should comfortably fit beneath the seat in front of you.

Prefer to fly direct from Salt Lake City to Ontario?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Salt Lake City to Ontario.
Find which airlines fly direct from Salt Lake City Airport to Ontario Airport, which days they fly and book direct flights.

Direct departures

Salt Lake City to Ontario

Monday

Delta

Delta

Tuesday

Delta

Delta

Wednesday

Delta

Delta

Thursday

Delta

Delta

Friday

Delta

Delta

Saturday

Delta

Delta

Sunday

Delta

Delta

See more direct flights

Direct returns

Ontario to Salt Lake City

Monday

Delta

Delta

Tuesday

Delta

Delta

Wednesday

Delta

Delta

Thursday

Delta

Delta

Friday

Delta

Delta

Saturday

Delta

Delta

Sunday

Delta

Delta

See more direct flights

Reviews of the top 3 airlines serving from Salt Lake City to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Salt Lake City to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Salt Lake City to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4241 reviews
7.0Food
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

2.0 MediocreIrene, Jun 2026
DEN - SFO
Read more Southwest reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

For the first time in a long time we had a flawless experience with Southwest. Both flights were early and no mechanical errors at all. We were shocked and pleasantly surprised 😮.

I stopped flying southwest a long time ago. I don’t care for their boarding process, especially when I have a family to try and seat together. The early bird check in made it so much easier. As long as you do that, it’s great.

Our flight to Oakland was great bc the plane was new but it was delayed by 15min not bad at all. Over all it was an 8/10

Everything was very good. I will fly Southwest again soon!

Nice and easy. You can't go wrong with the value and quality or Southwest.

The flight in it self was good. The delays looking for pilots was unexpected.

Flight was cancelled due to “inclement weather” even though all other carriers continued to operate as planned.

sw cancelled our flight 2 hours before we were to leave. Our bags were already checked. Only communication we had was a text that had a link to reschedule that did not work. When we finally got to front of line ticket agent said they could not get us on a flight until Wednesday. This was Sunday. 3 days. The. They stated since it was “weather” related they would not give us vouchers for food, hotel stay anything. So we had to book on a different airline costing us an extra $1000. Unacceptable.

We never made it on this flight because we missed our connection due to o delayed flight from Jackson.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Everything was great until I lost my water bottle and they can’t seem to locate it. I know I left it on the plane though.

Smaller plane for a longer flight than my first one. Doesn’t make sense.

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

NEVER MADE THE FLIGHT BECAUSE DELTA SAID THEY CAN NOT

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

They separated our seats and moved us to the back of the plane. Hundreds of dollars and thousands of miles used and this was my platinum member experience.

Got on the plane and then needed to deboard the plane because they didn’t have any pilots?

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

The delay was ridiculous because nary a word escaped from the gate attendant regarding our flight status. It was a complete joke.

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Plane was down graded and I lost my uncharged exit row with more leg room. No mention or offer of refund from podium. Flight attendant was nice to explain this happens often and that I could request a refund via online form submission. I did this and have heard nothing back.

Although we received an email from Kayak AND the airline, turns out we were not on Frontier’s manifest for the flight. We had to purchase tickets at the gate. Not sure where this transaction fell apart, but it did. We are now disputing the charges for the SLC to PDX flight originally booked through Kayak.

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

Our flight was cancelled and I spent $800 on a replacement ticket. No refund was awarded other than the cost of my original Frontier ticket. unacceptable...

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Was charged 99 dollars for a bag despite agents previously telling me it would be ok. Customer service was unhelpful

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

Everything you need to know for your flight from Salt Lake City to Ontario

Information on your arrival and departure airports