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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
$220
Delta Airlines
• nonstop
• 1h 53m
Dec 03 – Dec 06
The cheapest round trip flight from Ontario to Las Vegas (ONT-LAS-ONT) is currently $220
Cheapest One way Flight
$458
Delta Airlines
• 1 stop
• 12h 35m
Aug 11
The cheapest one way flight from Ontario to Chattanooga (ONT-CHA) is currently $458
Cheapest Direct Flight
$154
American Airlines
• nonstop
• 1h 52m
Dec 02
The cheapest nonstop flight from Ontario to Las Vegas (ONT-LAS) is currently $154
Fastest Flight
1h 40m
The fastest nonstop flight from Ontario to Las Vegas (ONT-LAS) takes 1h 40m
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.
Dec 03 - Dec 06, Economy
Ontario → Las Vegas
1h 53m
7:32 PM - 8:45 PM • nonstop
Ontario → Las Vegas
2h 1m
7:59 PM - 9:20 PM • nonstop
Delta Airlines
Dec 03 - Dec 06, Economy
Ontario → Las Vegas
1h 55m
11:00 AM - 12:15 PM • nonstop
Ontario → Las Vegas
1h 50m
5:30 AM - 6:40 AM • nonstop
Southwest Airlines
Dec 03 - Dec 06, Economy
Ontario → Las Vegas
10h 43m
4:46 PM - 11:29 PM • 1 stop
Ontario → Las Vegas
26h 50m
5:00 PM - 9:10 AM • 1 stop
Frontier Airlines
Dec 03 - Dec 06, Economy
Ontario → Las Vegas
1h 40m
8:40 AM - 9:40 AM • nonstop
Ontario → Las Vegas
15h 50m
5:30 AM - 3:20 PM • 1 stop
Southwest Airlines
Dec 03 - Dec 06, Economy
Ontario → Las Vegas
23h 51m
4:46 PM - 7:17 AM • 1 stop
Ontario → Las Vegas
1h 47m
4:26 PM - 5:33 PM • nonstop
Frontier Airlines
Explore competitive one-way airfare options from Ontario. Best suited for flexible or open-ended travel plans.
Access real-time availability on last-minute departures from Ontario. Tailored for urgent or short-notice travel requirements.
Discover direct flight options from Ontario (ONT). Save time by avoiding layovers and reaching your destination directly.
Dec 02 - Dec 05, Economy
Ontario → Las Vegas
1h 52m
3:00 PM - 4:12 PM • nonstop
Ontario → Las Vegas
1h 54m
5:02 PM - 6:16 PM • nonstop
American Airlines
Dec 03 - Dec 06, Economy
Ontario → Las Vegas
1h 53m
7:32 PM - 8:45 PM • nonstop
Ontario → Las Vegas
2h 1m
7:59 PM - 9:20 PM • nonstop
Delta Airlines
Dec 03 - Dec 06, Economy
Ontario → Las Vegas
1h 55m
11:00 AM - 12:15 PM • nonstop
Ontario → Las Vegas
1h 50m
5:30 AM - 6:40 AM • nonstop
Southwest Airlines
Dec 02 - Dec 05, Economy
Ontario → Las Vegas
1h 50m
5:45 AM - 6:55 AM • nonstop
Ontario → Las Vegas
1h 40m
12:30 PM - 1:30 PM • nonstop
Southwest Airlines
Dec 02 - Dec 05, Economy
Ontario → Las Vegas
1h 45m
1:25 PM - 2:30 PM • nonstop
Ontario → Las Vegas
1h 40m
12:30 PM - 1:30 PM • 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 Chattanooga, Las Vegas, Pittsburgh from Ontario
Essential Information for Booking Flights from Ontario (ONT) - AI Insights
What's the cheapest airline from ont?
You can find affordable flights from Ontario International Airport (ONT) on Frontier Airlines. For a one-way trip, you can expect to pay around $X for your 2-person group in Economy class, depending on the travel dates and availability. Please note that prices may vary based on the time of booking and flight schedules. To secure the best deals, we recommend booking at least 4 days in advance. For budget-friendly flights, consider flying during off-peak seasons or using our fare comparison tool to find the cheapest airfares.
What's the popular airline to fly from ont?
You can fly from Ontario International Airport (ONT) on Southwest Airlines.
What's the cheapest day of the week to fly from ont?
The cheapest day to fly from Ontario International Airport is Wednesday. Flying on this day can result in budget-friendly flights and airfares.
What's the cheapest month to fly from ont?
The cheapest month to fly from Ontario International Airport is October. Flying during this time can help you save on airfares as it's considered a low-cost period. You can find budget-friendly flights with airlines that offer affordable fares.
Which airline/airlines fly from ont?
You can fly from Ontario International Airport (ONT) to various destinations on airlines such as Southwest Airlines, Frontier Airlines, Mexicana, JetBlue Airways, Alaska Airlines, American Airlines, Hawaiian Airlines. For a one-way trip with 2 passengers in economy class, booking at least 4 days in advance can help you find budget-friendly airfares.
What is the cheapest airline to fly from Ontario International Airport (ONT) to our destination?
Frontier Airlines (F9)
How far in advance can I book my airfare for a one-way trip?
You can book your airfare up to 4 days in advance.
Can I find cheap flights on your website?
Yes, you can find affordable flights with Southwest Airlines (WN), Frontier Airlines (F9), and other airlines listed on our website.
What types of cabins are available on your flights?
Our flights offer Economy cabin options.
Do you offer any discounts or promotions for weekend getaways?
Yes, we offer special deals for weekend trips.
How do I track the status of my flight booking?
You can track your flight status on our website or through our mobile app.
Can I purchase airfare directly from your agency?
Yes, you can book flights directly with Southwest Airlines (WN), Frontier Airlines (F9), and other airlines listed on our website.
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
Ontario (ONT) Arrivals and Departures
| Airline | Flight code | Arrival time | Status |
|---|---|---|---|
|
American Airlines
AAL2031
|
A21N
|
3rd Aug, 2026 7:51 PM
|
Arriving |
|
Delta Airlines
DAL967
|
B738
|
3rd Aug, 2026 7:49 PM
|
Arriving |
|
Delta Airlines
DAL1517
|
A319
|
3rd Aug, 2026 7:47 PM
|
Arriving |
Southwest Airlines
SWA855
|
B738
|
3rd Aug, 2026 7:47 PM
|
Arriving |
Horizon Air
QXE2093
|
E75L
|
3rd Aug, 2026 7:50 PM
|
Arriving |
More Flight Options from Ontario, ONT
Flights from Ontario (ONT)
to Seattle (SEA)
Flights from Ontario (ONT)
to Seattle (SEA)
Flights from Ontario (ONT)
to San Francisco (SFO)
Flights from Ontario (ONT)
to San Francisco (SFO)
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to Honolulu (HNL)
Flights from Ontario (ONT)
to Honolulu (HNL)
Flights from Ontario (ONT)
to New York (JFK)
Flights from Ontario (ONT)
to Minneapolis (MSP)
Flights from Ontario (ONT)
to Minneapolis (MSP)
Flights from Ontario (ONT)
to Portland (PDX)
Flights from Ontario (ONT)
to Portland (PDX)
Flights from Ontario (ONT)
to Salt Lake City (SLC)
Flights from Ontario (ONT)
to Salt Lake City (SLC)
Flights from Ontario (ONT)
to Las Vegas (LAS)
Flights from Ontario (ONT)
to Las Vegas (LAS)
Flights from Ontario (ONT)
to Charlotte (CLT)
Flights from Ontario (ONT)
to Charlotte (CLT)
Flights from Ontario (ONT)
to Manila (MNL)
Flights from Ontario (ONT)
to Manila (MNL)
Flights from Ontario (ONT)
to Denver (DEN)
Flights from Seattle (SEA)
to Ontario (ONT)
Flights from Seattle (SEA)
to Ontario (ONT)
Flights from Salt Lake City (SLC)
to Ontario (ONT)
Flights from Salt Lake City (SLC)
to Ontario (ONT)
Flights from Dallas (DAL)
to Ontario (ONT)
Flights from Dallas (DAL)
to Ontario (ONT)
Flights from Baltimore (BWI)
to Ontario (ONT)
Flights from Baltimore (BWI)
to Ontario (ONT)
Flights from Houston (HOU)
to Ontario (ONT)
Flights from Houston (IAH)
to Ontario (ONT)
Flights from Houston (IAH)
to Ontario (ONT)
Flights from Las Vegas (LAS)
to Ontario (ONT)
Flights from Las Vegas (LAS)
to Ontario (ONT)
Flights from Boston (BOS)
to Ontario (ONT)
Flights from Boston (BOS)
to Ontario (ONT)
Flights from Oakland (OAK)
to Ontario (ONT)
Flights from Boise (BOI)
to Ontario (ONT)
Flights from Boise (BOI)
to Ontario (ONT)
Flights from New York (LGA)
to Ontario (ONT)
Flights from New York (LGA)
to Ontario (ONT)
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