Find Cheap Flights to Ontario (ONT) Starting from $125

Good to Know: Flights to ONT

Useful information for finding cheap flights to Ontario International and booking your next trip

Cheapest Round Trip Flight

$217

WN Southwest Airlines • 1 stop • 13h 55m

Apr 17 – Apr 24

The cheapest round trip flight from Eugene to Ontario (EUG-ONT-EUG) is currently $217

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Cheapest One way Flight

$303

DL Delta Airlines • 1 stop • 10h 16m

Oct 31

The cheapest one way flight from Oklahoma City to Ontario (OKC-ONT) is currently $303

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Cheapest Direct Flight

$125

WN Southwest Airlines • nonstop • 2h 5m

Nov 19

The cheapest nonstop flight from San Jose to Ontario (SJC-ONT) is currently $125

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Fastest Flight

2h

The fastest nonstop flight from Oakland to Ontario (OAK-ONT) takes 2h

Top Airlines Flying to Ontario International (ONT)

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

Alaska Airlines -AS

Alaska Airlines

American Airlines, AA

American Airlines

Avianca Airline - AV

Avianca

Sun Country Airlines (SY)

Sun Country Airlines

Best Flight Deals to Ontario

Identify the most efficient round-trip flights to Ontario. We present options balancing cost and convenience for your return journey.

Apr 17 - Apr 24, Economy
WN
Eugene → Ontario
13h 55m
10:30 AM - 7:05 PM • 1 stop
WN
Eugene → Ontario
13h 35m
10:30 AM - 6:45 PM • 3 stops
$217
Southwest Airlines
Apr 17 - Apr 24, Economy
AS
Eugene → Ontario
7h 31m
5:48 PM - 10:39 PM • 1 stop
AS
Eugene → Ontario
3h 35m
9:44 PM - 11:59 PM • nonstop
$338
Alaska Airlines
Apr 17 - Apr 17, Economy
AS
Eugene → Ontario
5h 55m
5:30 AM - 9:25 AM • 1 stop
AS
Eugene → Ontario
7h 1m
6:07 PM - 10:28 PM • 1 stop
$377
Alaska Airlines
Apr 17 - Apr 17, Economy
AS
Eugene → Ontario
8h 29m
6:00 AM - 11:09 AM • 1 stop
AS
Eugene → Ontario
7h 1m
6:07 PM - 10:28 PM • 1 stop
$377
Alaska Airlines
Apr 17 - Apr 24, Economy
WN
Eugene → Ontario
13h 55m
10:30 AM - 7:05 PM • 1 stop
WN
Eugene → Ontario
5h 30m
10:30 AM - 2:00 PM • 1 stop
$408
Southwest Airlines
Nov 23 - Nov 28, Economy
DL
Chicago → Ontario
10h 32m
7:17 PM - 11:49 PM • 1 stop
DL
Chicago → Ontario
5h 56m
5:59 PM - 11:55 PM • nonstop
$414
Delta Airlines

Fly to Ontario Easily with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight to Ontario? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Flights to Ontario (ONT)

Which airlines fly to Ontario?
Airlines flying the most to Ontario (ONT)
What is the cheapest flight to ONT Airport?
In the past couple of days, the cheapest tickets to ONT were found on DL : USD 662
What are the most popular origin to Ontario (ONT)?
Travelers frequently travel from Austin, Eugene, Oakland, Oklahoma City, Chicago, Louisville, San Jose, Salt Lake City, Honolulu to Ontario (ONT)

Essential Information for Booking Flights from Ontario (ONT) - AI Insights

What's the cheapest airline to ont?
Frontier Airlines offers budget-friendly flights from Ontario International Airport (ONT) to your destination. As you're booking a Round Trip (return journey) with 4 passengers, you can expect to pay for a Economy cabin class. To secure the cheapest fares, it's recommended to book at least 51 days in advance. You can find the latest airfares and cheapest flights on fareleaders.com.
What's the popular airline to fly to ont?
You can fly to Ontario International Airport with Southwest Airlines, which operates flights from various US cities. For a round-trip economy ticket, book in advance to secure the best Low Fares.
What's the cheapest day of the week to fly to ont?
The cheapest day to fly to Ontario is typically Thursday. Booking a round-trip flight on this day can help you save on airfares. For a budget-friendly option, consider flying into Ontario International Airport on a low-fares airline. You can find affordable airfare deals on flights to Ontario during the off-season, which usually falls in February or November.
What's the cheapest month to fly to ont?
The cheapest month to fly to Ontario is December, as it is typically the low season for air travel. You can expect to find budget-friendly flights during this time. For a round-trip journey, consider booking your flights in advance to secure the best airfares. Look for airlines offering Low Fares or Savings on their flights to Ontario in December.
Which airline/airlines fly to ont?
The airlines that fly to Ontario International Airport are United Airlines, Delta Airlines, Alaska Airlines, JetBlue Airways, Frontier Airlines, Southwest Airlines, and American Airlines.
What is the cheapest airline to fly from Ontario to Ontario?
Frontier Airlines (F9) is the cheapest airline to fly from Ontario to Ontario.
How far in advance can I book my Ontario flights?
You can book your Ontario flights up to 51 days in advance.
What is the best way to find the cheapest airfares for my Ontario trip?
The best way to find the cheapest airfares for your Ontario trip is to use airfare comparison platforms like FareLeaders.com.
Can I book flights for my Ontario trip online?
Yes, you can book flights for your Ontario trip online through the websites of the airlines listed as serving airlines.
How can I get the best deals on Ontario flights?
You can get the best deals on Ontario flights by booking in advance, using fare comparison platforms, and being flexible with your travel dates.
What is the process for booking flights with Ontario airlines?
The process for booking flights with Ontario airlines involves searching for flights on the airlines' websites, comparing prices, and booking the flight that suits your needs.
How do I know if I need to book a busco flight for my Ontario trip?
You do not need to book a busco flight for your Ontario trip. Busco flights are not a real thing.

Airport Information: Ontario International (ONT)

IATA Code
ONT
Name
Ontario International
City
Ontario
Country
US
Latitude
34.055999755859375
Longitude
-117.60099792480469

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