Cheap flights to Ontario International airport

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Flight deals to Ontario International

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

Find the cheapest time to fly to Ontario International

Flexible on travel dates? Find the cheapest month – or even day – to fly to Ontario International.

Airports near Ontario

Looking for an alternative route to Ontario? There are 6 more airports nearby. Compare them below to find the cheapest or fastest.

Frequently asked questions

Currently, there are no airlines that fly direct to Ontario International. But we found flights with one or more stops from C$309.
The cheapest month to fly to Ontario International is usually June.
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.
No airlines currently offer direct flights between Canada and United States. Most routes have one or more stops.
The best price we found for a round-trip flight to Ontario International is C$309. 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.
After crunching the numbers on our flight calendar, we found that the cheapest date to fly to Ontario International Airport is Tuesday, June 4, 2024.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Ontario International is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Flair Airlines offers the cheapest flight tickets to Ontario International.

Flying to Ontario International

The things to know before you go.
Cheapest flight foundC$165
Cheapest month to flyMay
Average flights per week0

Discover Ontario International

Cheap Flights to Ontario International Airport

If you're interested in visiting Los Angeles, but are intimidated by the hustle and bustle of the big city, a trip to Ontario, California is the perfect solution. Located less than an hour's drive from downtown LA, visiting Ontario is a great way to see all the attractions in southwestern California. To visit Ontario, you'll fly into Ontario International Airport (ONT), choosing from airlines like United Airlines and American Airlines.

You can find the cheapest ticket prices to Ontario International Airport with Skyscanner's flight search tools. Simply select airport code ONT and your travel dates and you will find the cheapest available flights.

What to See and Do in Ontario

Because of its close proximity to Los Angeles and San Diego, you can easily round out your trip to Ontario by visiting some of the big city attractions like Universal Studios or the San Diego Zoo. However, there is also lots to do and see in Ontario itself, like the incredible Ontario Museum of History & Art, or the beautiful Cucamonga-Guasti Regional Park.

The historic Graber Olive House has been packing fresh-grown Ontario olives since 1894 and is open all year for tours of the facility. If you prefer grapes to olives, Ontario also has many beautiful wineries to explore, like the San Antonio Winery.

Best Time to Book a Flight to Ontario International Airport

Ontario's semi-arid climate means temperatures range from mild to hot year-round. The months from June to September generally have the hottest weather, with temperatures often reaching uncomfortable highs.  The autumn and winter months regularly have high winds and high precipitation.

The spring months, from March to May, offer the most comfortable temperatures for visiting Ontario. When you've chosen your travel dates, be sure to use Skyscanner's Price Alert feature to monitor ticket prices and find the cheapest flights to Ontario International Airport.

Ontario International Airport Facilities

Ontario International Airport offers multiple vending machines and newsstands for snacks and shopping as well as a few cafés and delis. There are also a couple ATMs on site. Each terminal has a Nursing Room for mothers and children, located close to the restrooms. Free Wi-Fi is available throughout the airport.

For your convenience, taxis are always available just outside of baggage claim at both terminals. The airport is also accessible by public transport. If you'll be exploring cities outside of Ontario on your trip, it might be easiest to rent a car. A free shuttle service is available from the passenger terminals to the rental car center where companies like National and Hertz operate.

Tips for Travelling to Ontario International Airport

Canadians won't be required to obtain a visa to visit Ontario - just your boarding pass and valid passport will do.

While you're at the airport, don't forget to take pictures! Many movies and TV shows have been filmed at Ontario International Airport, including Dexter, Mad Men, and The Hangover 2.


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