CA $260 Cheap Flights from Buffalo (BUF) to Ontario Intl. Airport (ONT)

You can find cheap one-way flights from CA $260 and cheap return flights CA $522 BUF to ONT with Expedia. One-way flights typically cost between CA$624 and CA$2167, and return flights often range between CA$619 and CA$1668. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when BUF to ONT ticket fares go up or down.

August is typically the cheapest month to fly from Buffalo Niagara International Airport (BUF) to Ontario International Airport (ONT), with average return fares around CA$431. August often sees lower prices as the peak summer travel season begins to wind down. May and November are also good months to find deals on this route.

Enter BUF to ONT and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

Southwest Airlines is one of the cheapest airlines offering connecting return flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ontario Intl. Airport (ONT), with prices starting from around CA$409 for flights that can be booked for departure within the next year. These flights typically include a layover in Baltimore Washington Intl. Thurgood Marshall (BWI). These prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ontario Intl. Airport (ONT), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The cheapest months to fly from Buffalo Niagara International Airport (BUF) to Ontario International Airport (ONT) are typically August and November, with average return flights around CA$431. However, the most popular months for this route, meaning you'll have more flight options, are March and April. Since there isn't an overlap between the cheapest and most popular months, you might consider balancing your priorities: if saving money is key, aim for August or November; if having the most flight choices is important, March or April would be better.

There are approximately 40 connecting flights per day from Buffalo Niagara Intl. (BUF) to Ontario Intl. Airport (ONT). Some common connection points include Baltimore Washington Intl. Thurgood Marshall (BWI), Midway Intl. (MDW), and O'Hare Intl. (ORD).

The earliest flight from Buffalo Niagara Intl. (BUF) to Ontario Intl. Airport (ONT) typically departs around 5:00 AM local time, operated by American Airlines. This is a seasonal service active only in April. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

You'll typically find the most flights from Buffalo Niagara Intl. (BUF) to Ontario Intl. Airport (ONT) on a Thursday, with around 31 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include American Airlines, United, and Southwest Airlines. Flight schedules are quite consistent throughout the week, so you'll have plenty of choices no matter when you plan to fly.

The most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ontario Intl. Airport (ONT) are in the early morning, from 6am to 9am. Many major carriers, including American Airlines, Southwest Airlines and United, offer flights during this window. Many travellers prefer this time as it allows for an early start to their journey, giving them more time at their destination.

There are no nonstop flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ontario Intl. Airport (ONT). The distance between these two airports is approximately 3,489 kilometers. If you're looking for a flight with one stop, you can expect the journey to take around 7 hours 48 minutes. Flights with two or more stops typically take longer, averaging about 12 hours 18 minutes. Keep in mind that actual travel times can vary depending on your specific routing, layover durations, and factors like wind patterns.

You can fly first class between BUF and ONT. First class cabins are available on Delta, United, and American Airlines.

It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ontario Intl. Airport (ONT) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to Ontario from Buffalo Niagara Intl. (BUF), you can fly directly into Los Angeles - Ontario Intl. (ONT) which offers international flights and connections. Some flights may connect through major hubs like O'Hare Intl. (ORD), Baltimore Washington Intl. Thurgood Marshall (BWI), or LaGuardia (LGA) before reaching Ontario. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ontario Intl. Airport (ONT) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ontario Intl. Airport (ONT) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ontario Intl. Airport (ONT) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.