Book cheap flights to Ontario, CA from $18

Last minute flights to Ontario, CA

Book now before it's too late

Prices shown below were available within the past 3 days for the period specified and should not be considered the final price offered. Please note that availability and prices are subject to change.

Chicago Ontario, CA

BEST

DEAL

Sat, 21 Dec ORD - ONT

Fri, 27 Dec ONT - ORD

-12 %

870$ 766$

Prime price per passenger

Las Vegas Ontario, CA

BEST

DEAL

Wed, 19 Mar LAS - ONT

-10 %

20$ 18$

Prime price per passenger

Seattle Ontario, CA

BEST

DEAL

Sun, 15 Dec SEA - ONT

Tue, 17 Dec ONT - SEA

337$ 316$

Prime price per passenger

Seattle Ontario, CA

BEST

DEAL

Sun, 15 Dec SEA - ONT

Mon, 16 Dec ONT - SEA

358$ 335$

Prime price per passenger

Seattle Ontario, CA

BEST

DEAL

Sun, 15 Dec SEA - ONT

Sun, 15 Dec ONT - SEA

439$ 412$

Prime price per passenger

Chicago Ontario, CA

BEST

DEAL

Sat, 21 Dec ORD - ONT

Fri, 27 Dec ONT - ORD

789$ 752$

Prime price per passenger

Chicago Ontario, CA

BEST

DEAL

Sat, 21 Dec ORD - ONT

Fri, 27 Dec ONT - ORD

789$ 753$

Prime price per passenger

Popular flight routes to Ontario, CA

Flights from Auckland to Ontario, CA

712$ 669$

Prime price per passenger

Book your cheap flights to Ontario, CA

About your flight to Ontario, CA

Ontario, CA stands out as one of the most sought-after destinations within America. Like other destinations in United States, Ontario, CA boasts a wealth of attractions, including a captivating culture, breathtaking architecture, and rich history, all waiting to enchant travellers.

How to find cheap tickets to Ontario, CA

Embark on your Ontario, CA (ONT) adventure without breaking the bank! Timing is key when it comes to smart spending on your travels. High season usually brings higher prices and larger crowds. For the best deals during peak times, consider booking well in advance.

By being flexible with your travel dates and taking advantage of early booking incentives, you can maximize your savings and make the most of your Ontario, CA experience without compromising on quality. Consider traveling in the low season for a more affordable trip with fewer tourists.

For additional savings, consider bundling a flight + hotel booking, accessing additional discounts not only for flights, but also for a variety of accommodations.

Most popular airline for Ontario, CA

X stands as the top choice for travellers heading to Ontario, CA. Begin crafting your next escapade with eDreams, where we're dedicated to making your travel fantasies a reality. Your expedition begins now – reserve your flight today and set course for unforgettable adventures!

Fly to Ontario, CA

If you're looking for a cheap plane ticket to Ontario, CA, then you've come to the right place! eDreams offers thousands of flights from the top standard and low-cost airlines bringing you all the best deals on airfares to exciting destinations across the world. Simply enter your preferences in our super speedy search engine and select the best deal. It's that easy! Alternatively, whether you're an early bird or just looking for some holiday inspiration, eDreams customers can enjoy competitive prices on flights with our last minute deals to Ontario, CA. Because we all love to save money!

Finally, and if that wasn't enough, we offer a range of other great products at low prices, including hotels and car hire, making preparing for your dream holiday with us a breeze. So what are you waiting for? Book your cheap flight to Ontario, CA now and get away for less with eDreams.

Frequently asked questions about flights to Ontario, CA

How can I find cheap flights to Ontario, CA on eDreams?

At eDreams you will find flights from 18$ to Ontario, CA. Thanks to the combination of various technologies, machine learning algorithms and real user searches on our platform, you will be able to choose between the different options that best suit your needs when you have to fly to Ontario, CA.

Which airlines fly to Ontario, CA?

Airlines flying direct from New Zeland to Ontario, CA include:

Frontier Airlines, with flights from Las Vegas, Seattle and from Houston, for example.

Airlines with indirect flights to Ontario, CA include:

Alaska Airlines, which flies from New York City, Austin, TX or Chicago.
Frontier Airlines, with flights from Washington, D.C. (Arlington County), VA and Dallas, as well as from Phoenix.

What is the weather like in Ontario, CA?

If you're looking for summer vibes, the best time to travel to Ontario, CA is in July, June and August, when the average temperature reaches 31.62 °C, while June, August and September are the 3 sunniest months of the year, with an average of 138.82 hours. However, if you prefer colder temperatures, make sure you visit Ontario, CA during January, March or February to experience an average of 5.81 °C. For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during June, August and January, when the average precipitation in Ontario, CA is 3.35 mm, while the months of January, February and March are drier, with an average of 0 mm.