Cheap flights from Ontario to Buffalo from $144
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Buffalo departing on 9/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Ontario to Buffalo
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Buffalo?
If you aren’t able to travel during the month of May, then book flights to Buffalo from Ontario during September instead. Flights to Buffalo in September, while not as cheap as those in May, still average around $333.
What is the cheapest day to depart on your flight to Buffalo?
Our data shows that Saturday is the least expensive day to fly to Buffalo. Tickets to fly out on this day can be as low as $328. Flights from Ontario to Buffalo on a Sunday will generally be more expensive and average around $438. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Buffalo?
At noon is the cheapest time of day to fly from Ontario to Buffalo when you can find flight prices for as low as $298. Flying to Buffalo at noon is an ideal time because this is during off-peak travel hours. In the evening is when there is more demand to fly to Buffalo, so prices are often more expensive at around $390 per ticket.
How far in advance should I book a flight to Buffalo?
You are more likely to see cheaper flights to Buffalo from Ontario when booking 11 weeks ahead of your departure date. In general, you can expect to find flights to Buffalo for around $456 when searching 11 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buffalo from Ontario for as low as $302 on momondo.
What is the cheapest airline that flies from Ontario to Buffalo?
American Airlines, JetBlue, and Frontier are the most popular carriers operating from Ontario to Buffalo
What airlines fly to Buffalo?
American Airlines, JetBlue and Delta are the top three most popular airlines that fly to Buffalo from Ontario according to our data. American Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Buffalo. Keep in mind that there are 6 different airlines that fly to Buffalo on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to Buffalo
Cheap Ontario to Buffalo (ONT to BUF) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Buffalo
How far is Ontario to Buffalo by plane?
There are 2161.5 mi between Ontario and Buffalo. 6h 21m is a normal flight duration for this route.
When did momondo last update prices for flights from Ontario Airport to Buffalo Airport?
Prices for flights from Ontario Airport to Buffalo Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario Airport to Buffalo Airport?
As of June 2025, there are 4 operators available to choose from for flights from Ontario Airport to Buffalo Airport.
How old do you have to be to fly from Ontario Airport to Buffalo Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Buffalo Airport.
What documentation or ID do you need to fly to Buffalo Airport?
The required travel and health documents for your Buffalo Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buffalo Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Ontario to Buffalo?
momondo data reveals that the most frequently booked airline on the route from Ontario to Buffalo is American Airlines, representing 44% of all bookings. The subsequent popular airlines are Southwest at 38%, United Airlines at 10%, and Delta at 9%.
Best airlines flying from Ontario to Buffalo
Compare and see reviews for airlines that fly from Ontario to Buffalo with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $236 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $266 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $286 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $346 | Free Cancellation | Rating 8.0 4,287 reviews |
Traveling to a place near Buffalo?
Book flights to Buffalo if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to Buffalo?
It is quick and easy to find Ontario to Buffalo flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Buffalo that suits you.
Can I find flights from Ontario to Buffalo with flexible booking policies on momondo?
Yes. All flights to Buffalo from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Ontario to Buffalo?
momondo provides multiple filters to help you find the best flight to Buffalo from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Ontario to Buffalo right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Ontario to Buffalo flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.