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Good to Know: Cheapest and Fastest Flights from ONT
Useful information for finding cheap flights from Ontario International and booking your next trip
Cheapest Round Trip Flight
$145
Southwest Airlines
• nonstop
• 1h 55m
Oct 10 – Oct 17
The cheapest round trip flight from Ontario to Las Vegas (ONT-LAS-ONT) is currently $145
Cheapest One way Flight
$259
United Airlines
• 2 stops
• 20h 25m
Oct 11
The cheapest one way flight from Ontario to Greenville (ONT-GSP) is currently $259
Cheapest Direct Flight
$145
Southwest Airlines
• nonstop
• 1h 55m
Oct 10
The cheapest nonstop flight from Ontario to Las Vegas (ONT-LAS) is currently $145
Fastest Flight
1h 45m
The fastest nonstop flight from Ontario to Las Vegas (ONT-LAS) takes 1h 45m
Top Airlines Flying from Ontario International (ONT)
Most Recent Flight Deals from Ontario Now!
Compare and book low fare round-trip air tickets from Ontario. Ideal for travelers with confirmed return itineraries.
Oct 10 - Oct 17, Economy
Ontario → Las Vegas
1h 55m
7:00 AM - 8:15 AM • nonstop
Ontario → Las Vegas
1h 50m
2:45 PM - 3:55 PM • nonstop
Southwest Airlines
Oct 10 - Oct 17, Economy
Ontario → Las Vegas
10h 25m
9:25 AM - 3:50 PM • 1 stop
Ontario → Las Vegas
1h 45m
2:55 PM - 4:00 PM • nonstop
Southwest Airlines
Oct 10 - Oct 17, Economy
Ontario → Las Vegas
8h 50m
7:35 AM - 1:05 PM • 1 stop
Ontario → Las Vegas
1h 45m
2:55 PM - 4:00 PM • nonstop
Southwest Airlines
Oct 10 - Oct 17, Economy
Ontario → Las Vegas
12h 5m
11:30 AM - 6:55 PM • 1 stop
Ontario → Las Vegas
1h 45m
7:40 AM - 8:45 AM • nonstop
Southwest Airlines
Oct 11 - Oct 18, Economy
Ontario → Las Vegas
7h 7m
6:32 PM - 10:59 PM • 1 stop
Ontario → Las Vegas
7h 36m
5:55 PM - 10:51 PM • 1 stop
United Airlines
Explore competitive one-way airfare options from Ontario. Best suited for flexible or open-ended travel plans.
Oct 08, Economy
Ontario → Salt Lake City
17h 10m
12:00 PM - 11:30 PM • 1 stop
Southwest Airlines
Access real-time availability on last-minute departures from Ontario. Tailored for urgent or short-notice travel requirements.
Oct 10 - Oct 17, Economy
Ontario → Las Vegas
1h 55m
7:00 AM - 8:15 AM • nonstop
Ontario → Las Vegas
1h 50m
2:45 PM - 3:55 PM • nonstop
Southwest Airlines
Oct 10 - Oct 17, Economy
Ontario → Las Vegas
10h 25m
9:25 AM - 3:50 PM • 1 stop
Ontario → Las Vegas
1h 45m
2:55 PM - 4:00 PM • nonstop
Southwest Airlines
Oct 10 - Oct 17, Economy
Ontario → Las Vegas
8h 50m
7:35 AM - 1:05 PM • 1 stop
Ontario → Las Vegas
1h 45m
2:55 PM - 4:00 PM • nonstop
Southwest Airlines
Oct 10 - Oct 17, Economy
Ontario → Las Vegas
12h 5m
11:30 AM - 6:55 PM • 1 stop
Ontario → Las Vegas
1h 45m
7:40 AM - 8:45 AM • nonstop
Southwest Airlines
Oct 11 - Oct 18, Economy
Ontario → Las Vegas
7h 7m
6:32 PM - 10:59 PM • 1 stop
Ontario → Las Vegas
7h 36m
5:55 PM - 10:51 PM • 1 stop
United Airlines
Discover direct flight options from Ontario (ONT). Save time by avoiding layovers and reaching your destination directly.
Oct 10 - Oct 17, Economy
Ontario → Las Vegas
1h 55m
7:00 AM - 8:15 AM • nonstop
Ontario → Las Vegas
1h 50m
2:45 PM - 3:55 PM • nonstop
Southwest Airlines
Oct 10 - Oct 17, Economy
Ontario → Las Vegas
1h 45m
12:45 PM - 1:50 PM • nonstop
Ontario → Las Vegas
1h 50m
12:00 PM - 1:10 PM • nonstop
Southwest Airlines
Oct 11 - Oct 18, Economy
Ontario → Las Vegas
1h 45m
5:20 PM - 6:25 PM • nonstop
Ontario → Las Vegas
1h 45m
8:00 AM - 9:05 AM • nonstop
Southwest Airlines
Oct 10 - Oct 17, Economy
Ontario → Las Vegas
1h 45m
9:40 AM - 10:45 AM • nonstop
Ontario → Las Vegas
1h 45m
7:40 AM - 8:45 AM • nonstop
Southwest Airlines
Oct 11 - Oct 18, Economy
Ontario → Las Vegas
1h 50m
2:00 PM - 3:10 PM • nonstop
Ontario → Las Vegas
1h 50m
5:55 AM - 7:05 AM • nonstop
Southwest Airlines
FAQs on Flights from Ontario (ONT)
Which airlines fly from Ontario?
Airlines flying the most from Ontario (ONT)
What are the most popular destination from Ontario ( ONT )?
Travelers frequently travel to Greenville, Las Vegas, Salt Lake City, Guadalajara from Ontario
Hotels near Ontario International (ONT)
The Ritz-Carlton, Rancho Mirage
68900 Frank Sinatra Dr, Rancho Mirage, California, 92270
Ayres Hotel Chino Hills
4785 Chino Hills Pkwy, Chino hills, California, 91709
Pacific Palms Resort
1 Industry Hills Pkwy, City Of Industry, California, 91744
Arrowhead Inn & Suites
250 North 9th Street, Colton, California, 92324
Ayres Suites Diamond Bar
21951 Golden Springs Dr, Diamond Bar, California, 91765
Airport Information: Ontario International (ONT)
- IATA Code
- ONT
- Name
- Ontario International
- City
- Ontario
- Country
- US
- Latitude
- 34.055999755859375
- Longitude
- -117.60099792480469
More Flight Options from Ontario, ONT
Flights from Ontario (ONT)
to Dallas (DFW)
Flights from Ontario (ONT)
to Dallas (DFW)
Flights from Ontario (ONT)
to Las Vegas (LAS)
Flights from Ontario (ONT)
to Las Vegas (LAS)
Flights from Ontario (ONT)
to Seattle (SEA)
Flights from Ontario (ONT)
to Seattle (SEA)
Flights from Ontario (ONT)
to Nashville (BNA)
Flights from Ontario (ONT)
to Nashville (BNA)
Flights from Ontario (ONT)
to San Francisco (SFO)
Flights from Ontario (ONT)
to San Francisco (SFO)
Flights from Ontario (ONT)
to San Jose (SJC)
Flights from Ontario (ONT)
to Orlando (MCO)
Flights from Ontario (ONT)
to Orlando (MCO)
Flights from Ontario (ONT)
to New York (JFK)
Flights from Ontario (ONT)
to Dallas (DAL)
Flights from Ontario (ONT)
to Dallas (DAL)
Flights from Ontario (ONT)
to New York (LGA)
Flights from Ontario (ONT)
to New York (LGA)
Flights from Ontario (ONT)
to Pittsburgh (PIT)
Flights from Ontario (ONT)
to Pittsburgh (PIT)
Flights from Denver (DEN)
to Ontario (ONT)
Flights from Denver (DEN)
to Ontario (ONT)
Flights from Seattle (SEA)
to Ontario (ONT)
Flights from Seattle (SEA)
to Ontario (ONT)
Flights from San Francisco (SFO)
to Ontario (ONT)
Flights from San Francisco (SFO)
to Ontario (ONT)
Flights from Miami (MIA)
to Ontario (ONT)
Flights from Miami (MIA)
to Ontario (ONT)
Flights from Dallas (DFW)
to Ontario (ONT)
Flights from Dallas (DFW)
to Ontario (ONT)
Flights from Las Vegas (LAS)
to Ontario (ONT)
Flights from Las Vegas (LAS)
to Ontario (ONT)
Flights from Indianapolis (IND)
to Ontario (ONT)
Flights from Indianapolis (IND)
to Ontario (ONT)
Flights from Newark (EWR)
to Ontario (ONT)
Flights from New York (LGA)
to Ontario (ONT)
Flights from New York (LGA)
to Ontario (ONT)
Flights from New York (JFK)
to Ontario (ONT)
Flights from Boston (BOS)
to Ontario (ONT)
Flights from Boston (BOS)
to Ontario (ONT)
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