ONT - SLC

$57 Find Cheap Flights from Ontario to Salt Lake City

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Salt Lake City departing on 10/27. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Salt Lake City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Salt Lake City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Salt Lake City, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$124
Typical prices: $418-$249
Frontier
Tue 6/30Tue 7/7
ONT - SLC • 1 stop
Cheapest non-stop
$339
Typical prices: $449-$269
Delta
Fri 7/17Sun 7/19
ONT - SLC • 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 value.
Delta offers free Wi-Fi; Comfort Plus adds up to 3 extra inches of legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $124 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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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
+1
Top layover airports
Cheapest • Avg $245 (round-trip)
Shortest trip • 3h 58m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Salt Lake City 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 Ontario to Salt Lake City

Tue, Jun 30 - Tue, Jul 7
Frontier Logo
3:34 pm - 9:35 am
ONT
-
SLC
17h 01m
1 stop
Frontier Logo
1:47 pm - 8:03 am
SLC
-
ONT
19h 16m
1 stop
$124Frontier
Tue, Aug 11 - Wed, Aug 19
Frontier Logo
3:40 pm - 9:26 am
ONT
-
SLC
16h 46m
1 stop
Frontier Logo
1:50 pm - 7:48 pm
SLC
-
ONT
6h 58m
1 stop
$126Frontier
Wed, Jul 1 - Tue, Jul 7
Frontier Logo
3:34 pm - 9:35 am
ONT
-
SLC
17h 01m
1 stop
Frontier Logo
1:47 pm - 8:03 am
SLC
-
ONT
19h 16m
1 stop
$144Frontier
Tue, Jun 23 - Wed, Jun 24
Frontier Logo
3:34 pm - 9:35 am
ONT
-
SLC
17h 01m
1 stop
Frontier Logo
1:50 pm - 7:51 pm
SLC
-
ONT
7h 01m
1 stop
$145Frontier
Tue, Jun 23 - Wed, Jun 24
Frontier Logo
1:33 pm - 9:35 am
ONT
-
SLC
19h 02m
1 stop
Frontier Logo
1:50 pm - 7:51 pm
SLC
-
ONT
7h 01m
1 stop
$157Frontier
Thu, Oct 22 - Tue, Oct 27
Frontier Logo
11:16 am - 9:03 pm
ONT
-
SLC
8h 47m
1 stop
Frontier Logo
9:42 pm - 12:02 pm
SLC
-
ONT
15h 20m
1 stop
$158Frontier
Tue, Aug 4 - Sun, Aug 9
Frontier Logo
3:40 pm - 9:26 am
ONT
-
SLC
16h 46m
1 stop
Frontier Logo
1:47 pm - 8:03 am
SLC
-
ONT
19h 16m
1 stop
$161Frontier
Wed, Jul 29 - Mon, Aug 3
Frontier Logo
3:40 pm - 9:26 am
ONT
-
SLC
16h 46m
1 stop
Frontier Logo
1:47 pm - 8:03 am
SLC
-
ONT
19h 16m
1 stop
$172Frontier
Mon, Aug 10 - Thu, Aug 20
Frontier Logo
3:40 pm - 9:26 am
ONT
-
SLC
16h 46m
1 stop
Frontier Logo
1:50 pm - 7:48 pm
SLC
-
ONT
6h 58m
1 stop
$175Frontier
Sat, Aug 15 - Mon, Aug 17
Frontier Logo
8:58 am - 8:01 pm
ONT
-
SLC
10h 03m
1 stop
Frontier Logo
1:47 pm - 3:09 pm
SLC
-
ONT
26h 22m
1 stop
$180Frontier
Booking Insights

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

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

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

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

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

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

When flying from Ontario to Salt Lake City, you should consider leaving on a Thursday and avoid Mondays if you are looking for the best rates. For your return to Ontario, you’ll find the best rates on Thursdays and the most expensive ones on Wednesdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Salt Lake City, 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 Ontario to Salt Lake City is August, where tickets cost $239 (return) on average. On the other hand, the most expensive months are March and May, where the average cost of round-trip tickets is $398 and $359 respectively.

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

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.

No, with an average price for the route of $339, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Salt Lake City, 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 Ontario to Salt Lake City, you should book around 5 weeks before departure, which saves you about 44% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from Ontario to Salt Lake City

 
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 seasonMarch
Cheapest flight$57
Best time to beat the crowds but there is an average 27% increase in price.
Most popular time to fly with an average 8% increase in price.
Flight from Ontario to Salt Lake City

When to book flights from Ontario to Salt Lake City

Are your dates flexible? Find out the best times to travel from Ontario to Salt Lake City 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 Ontario to Salt Lake City

  • Where are the lounges at ONT Airport located?

    Ontario International Airport has three lounges where travelers can stop by and comfortably have a drink while waiting to board their flight. These lounges include two Aspire Lounges and a USO Lounge. The Aspire Lounges are located in Terminal 2 near Gate 209 and Terminal 4 behind Gate 410. The USO Lounge, on the other hand, is located in the Administration Building (Old Terminal 1) and is only open to military personnel and their families.

  • Is public transport available to ONT from downtown Ontario?

    Yes, you can take the bus from downtown Ontario to the airport. Head to the station at Holt @ Palm Eb and take the 61 bus which goes directly to the airport. Alternatively, you can take a taxi if you need to get to the airport as quickly as possible. They are available everywhere around downtown so finding one shouldn’t be difficult.

  • How do I get from SLC to the city center?

    There are a few transport options available from SLC to the city center. If you’re working with a tight budget, the metro is worth considering. Just head to the airport station and board the Green Line towards West Valley. If you would rather go for convenience, there are plenty of taxis available outside the arrivals terminal and they will drop you at any destination in the city.

  • How can I get cheaper flight tickets?

    If you’re looking to save a few dollars on flight tickets, try booking your flight a few months in advance. This is because ticket prices tend to increase as the demand for tickets increases, and the demand for tickets increases as the travel date approaches. Therefore, by booking in advance, you will be avoiding the price surges that happen over time. You should also try and be more flexible with travel dates. Avoid booking days with high demand such as holidays and weekends.

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

    In the last 5 days, the lowest price for a flight from Ontario to Salt Lake City was $57 for a one-way ticket and $124 for a round-trip.

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

    No

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

    All the following airlines offer inflight Wi-Fi service on the Ontario to Salt Lake City flight route: Delta, Alaska Airlines, JetBlue, American Airlines, Iberia, Finnair, and British Airways.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Salt Lake City are Southwest and Delta. With an average price for the route of $337 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 $341 and an overall rating of 7.9.

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

    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 Ontario to Salt Lake City.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Salt Lake City from Ontario 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 Ontario to Salt Lake City?

    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 Salt Lake City with an airline and back to Ontario with another airline. Booking your flights between Ontario and SLC 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 Ontario to Salt Lake City?

    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 Salt Lake City from Ontario 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 Ontario to Salt Lake City

  • Looking for a cheap flight? 25% of our users found flights on this route for $160 or less one-way and $337 or less round-trip.
  • Ontario International Airport (ONT) has baby care rooms for travelers with infants. These rooms are ideal for pumping and breastfeeding as well as changing diapers. They are located in Terminal 2 across from Gate 207 and Terminal 4 across from Gate 407.
  • If you plan on leaving your car at the ONT airport parking, you should reserve a spot in advance to avoid wasting a lot of time roaming the car park. You can also opt for the offsite parking lots which usually charge lower prices compared to airport parking.
  • ONT Airport has courtesy shuttles that help travelers move from one terminal to another as well as from the parking lots to the terminals and ConRAC facility. These shuttles run every five minutes and a free to use.
  • If you need any assistance while at Salt Lake City International Airport (SLC), just look for an information desk. They are located in both terminals across from baggage claim. These desks are usually staffed with airport officials who are always happy to help.
  • SLC Airport has baggage carts available to all travelers who need help carrying their luggage. to get these carts, you will have to pay a $5 fee for every cart and the amount is partially refundable if you return the cart. The refund ranges between $0.25 and $1.

Prefer to fly direct from Ontario to Salt Lake City?

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

Direct departures

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

Direct returns

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

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

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Salt Lake City. 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 Ontario to Salt Lake City? 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 4256 reviews
8.0Comfort
8.6Crew
8.1Boarding
7.0Food
7.5Entertainment
Airline reviews

Was fine, delayed and feels like southwest is always late

6.0 GoodAnonymous, Jun 2026
SMF - LAS
Read more Southwest reviews

Was fine, delayed and feels like southwest is always late

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

They didn’t offer a water, even after I asked

Remind customers of the need to have passport or new ID for boarding.

The flight never took off and we spent 7 hours at the airport

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

No way to get boarding pass on my phone. In order to print the bag ticket a boarding pass is needed. Asked the agent to print me one, they said they typically do not due this as its so much work. I showed the email confirmation and I asked how i could do it my self the agent replied he did not know as there was no link. The flight was delayed due to an attendant forgetting to come to work. On the flight no drinks were offered only for purchase meals.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

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

Information on your arrival and departure airports