Route guide · 558 miles
Cheap Flights from Salt Lake City to Ontario
SLC → ONT · Nonstop 1h 38m · Live round-trip fares
Plenty of travelers price out Salt Lake City to Ontario every day — here's how to beat the average fare. Nonstops run about 1h 38m, and the calendar matters more than the airline. Aim to book 2–4 weeks ahead, stay flexible on the day of the week, and set a free alert so a price drop never slips past you.
Live fares for SLC → ONT are updating. Use the search below for real-time prices.
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See live fares
Updated daily
Flight time
1h 38m
Nonstop, typical
Distance
558 mi
SLC → ONT
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
1
Delta Air Lines
Nonstop flights from Salt Lake City to Ontario
Nonstop service links Salt Lake City and Ontario directly — flights are flown by Delta Air Lines. Expect roughly 1h 38m in the air. If a nonstop is what you want, don't wait too long: booking 2–4 weeks ahead is when these seats are priced most kindly.
Booking insights: Salt Lake City → Ontario
- Distance: 558 miles · nonstop flight time: 1h 38m.
- Cheapest upcoming week in the live data starts around Oct 29, with fares from $156.
- Rule of thumb for this route: the sweet spot is usually 2–4 weeks before departure.
- Tuesday and Wednesday departures usually undercut Friday and Sunday fares on routes like this one.
- Set a free Airfare Deal alert instead of checking daily — the best fares can sell out in hours.
Price trend
Cheapest departure weeks ahead
Departing around Oct 29 is currently the cheapest window — about $53 less than the nearest weeks. Based on recent fares found for this route; prices change quickly.
Cheapest month · Salt Lake City → Ontario
November 2026
Every date's recent round-trip fare, at a glance.
Fares from
$156
Cheapest: Sun, Nov 1 — $156
Get this fare →Recent fares found for specific dates in November 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
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Flying from Salt Lake City to Ontario: what you need to know
The flight
Salt Lake City to Ontario covers 558 miles, and a nonstop gets it done in about 1h 38m. That's long enough to settle in with a coffee and a downloaded show, short enough that a connection rarely makes sense — a layover usually doubles your travel day to save very little.
Airlines on this route
Delta Air Lines flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Salt Lake City (SLC)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Salt Lake City airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Ontario (ONT)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Ontario airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Ontario to Salt Lake City fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 558 miles, booking 2–4 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Get to the airport two hours before departure; security, not the flight, is the part that runs late.
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 1h 38m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
- Tuesday and Wednesday departures are typically the cheapest days on domestic routes.
Salt Lake City to Ontario flight FAQs
How long is the flight from SLC to ONT?
A nonstop from SLC to ONT clocks in at around 1h 38m for the 558-mile trip. If you're connecting, budget an extra 2–4 hours depending on where you stop.
Are there nonstop flights from Salt Lake City to Ontario?
Yes — look for Delta Air Lines on this route. Nonstop seats are usually priced best 2–4 weeks before departure.
What is the cheapest month to fly from Salt Lake City to Ontario?
There's no single magic month, but prices on this route generally soften in the shoulder season, when demand dips after the holidays and again in early fall. A free fare alert is the easiest way to catch those windows.
How much are last minute flights from SLC to ONT?
Book inside the final week and you'll usually pay a premium on SLC to ONT. Fares booked 2–4 weeks ahead are almost always kinder.
What is a good round-trip deal from Salt Lake City to Ontario?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Salt Lake City to Ontario?
The main carriers on this route are Delta Air Lines. Comparing all of them on the live search below usually surfaces the lowest fare for your dates.
How early should I get to Salt Lake City airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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