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Cheap Flights from Salt Lake City to Ontario International

Compare Salt Lake City to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals from Salt Lake City Airport to Ontario International Airport

Looking for a cheap last-minute deal or the best return flight from Salt Lake City Airport to Ontario International Airport? If you want to travel next month, return fares start from R 1,976. Find the lowest prices on one-way and return tickets right here.
Ontario.R 971 per passenger.Departing Thu, 2 Apr.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Salt Lake City on Thu, 2 Apr, arriving in Ontario International.Price includes taxes and charges.From R 971, select.
Ontario.R 992 per passenger.Departing Tue, 17 Mar.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Salt Lake City on Tue, 17 Mar, arriving in Ontario International.Price includes taxes and charges.From R 992, select.
Ontario.R 1,390 per passenger.Departing Thu, 14 May.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Salt Lake City on Thu, 14 May, arriving in Ontario International.Price includes taxes and charges.From R 1,390, select.
Ontario.R 2,091 per passenger.Departing Tue, 11 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Salt Lake City on Tue, 11 Aug, arriving in Ontario International.Price includes taxes and charges.From R 2,091, select.
Ontario.R 2,271 per passenger.Departing Wed, 3 Jun.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Salt Lake City on Wed, 3 Jun, arriving in Ontario International.Price includes taxes and charges.From R 2,271, select.
Ontario.R 2,471 per passenger.Departing Tue, 6 Oct.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Salt Lake City on Tue, 6 Oct, arriving in Ontario International.Price includes taxes and charges.From R 2,471, select.
Ontario.R 2,471 per passenger.Departing Tue, 1 Sep.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Salt Lake City on Tue, 1 Sep, arriving in Ontario International.Price includes taxes and charges.From R 2,471, select.
Ontario.R 2,491 per passenger.Departing Tue, 14 Jul.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Salt Lake City on Tue, 14 Jul, arriving in Ontario International.Price includes taxes and charges.From R 2,491, select.
Ontario.R 3,199 per passenger.Departing Wed, 1 Jul.One-way flight with Delta.Outbound direct flight with Delta departs from Salt Lake City on Wed, 1 Jul, arriving in Ontario International.Price includes taxes and charges.From R 3,199, select.
Ontario.R 3,386 per passenger.Departing Thu, 5 Mar.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Salt Lake City on Thu, 5 Mar, arriving in Ontario International.Price includes taxes and charges.From R 3,386, select.
Ontario.R 3,432 per passenger.Departing Sun, 3 May.One-way flight with Delta.Outbound direct flight with Delta departs from Salt Lake City on Sun, 3 May, arriving in Ontario International.Price includes taxes and charges.From R 3,432, select.
Ontario.R 3,432 per passenger.Departing Tue, 11 Aug.One-way flight with Delta.Outbound direct flight with Delta departs from Salt Lake City on Tue, 11 Aug, arriving in Ontario International.Price includes taxes and charges.From R 3,432, select.

Find the cheapest month to fly from Salt Lake City to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Salt Lake City to Ontario International flights are currently cheapest in April.
Mar
from R 992
Apr
from R 971
May
from R 1,390
Jun
from R 2,271
Jul
from R 2,491
Aug
from R 2,091
Sep
from R 2,471
Oct
from R 2,471
Nov
Find prices
Dec
Find prices
Jan
Find prices
Feb
Find prices

Direct flights from Salt Lake City to Ontario International

Salt Lake City to Ontario International: Alternative routes

Compare routes from Salt Lake City to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Ontario International

4km from central Ontario
Closest
from R 971
Search flights

San Bernardino Norton AFB

39km from central Ontario
Search flights

Santa Ana John Wayne

48km from central Ontario
from R 1,026
Search flights

Long Beach Municipal

54km from central Ontario
from R 2,006
Search flights

Hawthorne

65km from central Ontario
from R 2,757
Search flights

Burbank

67km from central Ontario
from R 988
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Los Angeles International

71km from central Ontario
Cheapest
from R 451
Search flights

Salt Lake City to Ontario: Flight information

The things to know before you go.
Cheapest flight foundR 971
Cheapest month to flyApril
Average flight time1 hr, 52 mins
Most popular airlineDelta
Average flights per week114

Finding cheap flights from Salt Lake City to Ontario International: Frequently asked questions

The best price we found for a return flight from Salt Lake City to Ontario International is R 1,951. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 52 minutes is the average flight time from Salt Lake City to Ontario International.
Delta, SkyWest Airlines and Air France fly direct from Salt Lake City to Ontario International.
As of March 2026, there are 114 flights per week flying from Salt Lake City to Ontario International.
The cheapest month to fly from Salt Lake City to Ontario International is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Salt Lake City Airport to Ontario International Airport on Wednesday, 13 May 2026.
Yes – the average flight time is 1 hour and 52 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to Ontario International.

Flying from Salt Lake City International Airport (SLC) to Ontario International Airport (ONT): what you need to know

  • Around 1 hour 50 minutes is how long you'll be travelling on a direct flight from Salt Lake City International Airport to Ontario International Airport.

  • Ontario is one hour behind Salt Lake City and is in the UTC-7 timezone.

  • You can choose from 143 weekly Salt Lake City International Airport to Ontario International Airport flights. The 11:10 departure with Delta Air Lines is the earliest available. Delta Air Lines operates the latest service of the day at 23:25.

  • Arrive at the airport on time so you don't miss your SLC to ONT flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid a last-minute sprint to the gate.

  • Flying during a peak month such as July? Major public holidays and other popular seasons can result in longer lines and delays at security. Be extra cautious and get there up to four hours ahead of an international flight and two hours before domestic departures.

  • Getting to Ontario (and then seeing more of United States!) is a breeze with Delta Air Lines. This popular carrier has direct flights from Salt Lake City International Airport to Ontario International Airport.

  • Delta Air Lines tops the list for bookings on this route.

  • Delta Air Lines is the most punctual carrier that operates SLC to ONT flights. A reliable 93.14% of its departures on this route arrive as planned.

  • If you want to include a stop along the way, just deselect 'Direct flights only' when searching for your ticket from Salt Lake City International Airport to Ontario International Airport. These are the top stopovers between SLC and ONT:

    • Harry Reid Airport (formerly McCarran Airport)

    • Phoenix Sky Harbour International Airport

    • Norman Y. Mineta San Jose International Airport

How to find the cheapest flights from Salt Lake City International Airport (SLC) to Ontario International Airport (ONT)

  • R 971 is currently the lowest price for a one-way Salt Lake City International Airport to Ontario International Airport flight. Return flights start at R 1,951. These fares may change depending on demand.

  • Get cheap tickets from SLC to ONT by booking six months ahead. Based on our research, that's the sweet spot for finding a bargain.

  • Schedule your trip for May. That's the cheapest month for flights from Salt Lake City International Airport to Ontario International Airport. If you're flexible with your dates, try out the 'Whole month' tool to find the cheapest price across each month.

  • Save time searching for cheap flights from SLC to ONT by creating a Price Alert. You'll receive an email or notification through the app when a special offer becomes available.

  • Discover the perfect flight for you by using the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Salt Lake City International Airport to Ontario International Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Salt Lake City International Airport (SLC)

  • You'll find SLC at 776 North Terminal Drive.

  • Salt Lake City International Airport gets high marks for on-time performance. 82.4% of flights that depart SLC reach their destination on time.

  • Central Salt Lake City to Salt Lake City International Airport is around 13 kilometres. Depending on traffic, it'll take about 15 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Planning to catch public transport? Expect a trip time of around 2 hours 55 minutes.

  • Have an early flight from Salt Lake City International Airport to Ontario International Airport? Avoid rushing to the airport (and sneak in some extra precious sleep) by picking one of these stays close to SLC:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • The address for ONT is 2900 E. Airport Drive.

  • Ontario International Airport is approximately 6 kilometres from central Ontario. Driving there takes about 10 minutes.

  • Getting there by public transport typically takes 1 hour 30 minutes.

When to fly to Ontario International Airport (ONT)

  • The quietest month for a flight from Salt Lake City International Airport to Ontario International Airport is May, while August is the most popular. Pick the ideal time to visit Ontario based on whether you prefer a more relaxed vibe or a faster pace.

  • Book your flight from Salt Lake City International Airport to Ontario International Airport for August if you want to visit Ontario during its warmest month. You can expect temperatures of between 15ºC (59ºF) and 35ºC (95ºF).

  • If you'd rather travel in cooler conditions, search for a cheap ticket from SLC to ONT in January. Average temperatures are between 4ºC (39ºF) and 23ºC (73ºF) then.

Explore more of United States

  • You've done Ontario, now it's time to explore other corners of United States. Journey around 56 kilometres west to Los Angeles to check off its leading attractions. From Griffith Observatory to The Broad and La Brea Tar Pits & Museum, you'll have a packed itinerary ahead.

  • Around 153 kilometres south of Ontario, San Diego is another favourite stop in United States. Get a taste of what this destination has to offer at San Diego Zoo, USS Midway Museum and SeaWorld San Diego.

Plan the rest of your trip from Salt Lake City to Ontario

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.