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Cheap flights from Ontario to Buffalo from $136

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 5/12. 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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0 bags

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Find the cheapest flights from Ontario to Buffalo

Cheap round-trip flights

These are some of the best round-trip flight deals from Ontario to Buffalo that have been recently found on momondo from popular airlines, departing in the coming months.
2:50 pm - 12:55 amONT-BUF
7h 05m1 stop
5:10 pm - 12:10 amBUF-ONT
10h 00m1 stop
$279Southwest
Find Deal
Thu, Mar 13 - Sat, Mar 15
12:07 pm - 11:57 pmONT-BUF
8h 50m1 stop
12:05 pm - 7:28 pmBUF-ONT
10h 23m1 stop
$297Delta
Find Deal
Tue, Apr 15 - Tue, Apr 22
12:07 pm - 11:57 pmONT-BUF
8h 50m1 stop
10:47 am - 10:36 pmBUF-ONT
14h 49m2 stops
$302Delta
Find Deal
Tue, Apr 15 - Tue, Apr 22
8:30 am - 8:15 pmONT-BUF
8h 45m1 stop
7:55 pm - 12:05 amBUF-ONT
7h 10m1 stop
$314Southwest
Find Deal
Sat, Mar 15 - Sat, Mar 22
10:40 pm - 9:05 amONT-BUF
7h 25m1 stop
6:43 am - 11:46 amBUF-ONT
8h 03m1 stop
$322American Airlines
Find Deal
Tue, Apr 22 - Wed, Apr 30
10:27 pm - 11:14 amONT-BUF
9h 47m1 stop
5:45 pm - 9:44 pmBUF-ONT
6h 59m1 stop
$380American Airlines
Find Deal
Tue, Mar 11 - Sat, Aug 30
10:40 pm - 9:44 amONT-BUF
8h 04m1 stop
3:05 pm - 9:22 pmBUF-ONT
9h 17m1 stop
$392JetBlue
Find Deal
Sat, May 10 - Fri, May 23
10:40 pm - 9:44 amONT-BUF
8h 04m1 stop
3:05 pm - 9:22 pmBUF-ONT
9h 17m1 stop
$425JetBlue
Find Deal
Sun, May 11 - Sat, May 24
6:15 pm - 3:56 pmONT-BUF
18h 41m1 stop
5:16 pm - 11:59 pmBUF-ONT
9h 43m1 stop
$430Frontier
Find Deal
Thu, Jun 12 - Mon, Jun 16
12:59 am - 3:56 pmONT-BUF
11h 57m1 stop
5:16 pm - 11:59 pmBUF-ONT
9h 43m1 stop
$809Frontier
Find Deal
Tue, Jul 1 - Mon, Jul 14

United Airlines flights from Ontario to Buffalo

Our best United Airlines deals on Ontario to Buffalo flight tickets
United Airlines
Mar 12
ONT6:00 amOntario
14h 28m
2 stops
BUF11:28 pmBuffalo
Sep 9
BUF5:50 pmBuffalo
7h 36m
1 stop
ONT10:26 pmOntario
United Airlines
Mar 12
ONT5:05 amOntario
13h 04m
2 stops
BUF9:09 pmBuffalo
Sep 9
BUF8:30 amBuffalo
10h 16m
2 stops
ONT3:46 pmOntario
United Airlines
Apr 22
ONT5:00 amOntario
25h 40m
3 stops
BUF9:40 amBuffalo
Apr 30
BUF6:00 amBuffalo
11h 50m
2 stops
ONT2:50 pmOntario

American Airlines flights from Ontario to Buffalo

Our best American Airlines deals on Ontario to Buffalo flight tickets
American Airlines
Apr 22
ONT10:40 pmOntario
7h 25m
1 stop
BUF9:05 amBuffalo
Apr 30
BUF6:43 amBuffalo
8h 03m
1 stop
ONT11:46 amOntario
American Airlines
Mar 11
ONT10:27 pmOntario
9h 47m
1 stop
BUF11:14 amBuffalo
Aug 30
BUF5:45 pmBuffalo
6h 59m
1 stop
ONT9:44 pmOntario
American Airlines
Mar 12
ONT10:27 pmOntario
9h 47m
1 stop
BUF11:14 amBuffalo
Mar 14
BUF6:47 amBuffalo
10h 23m
1 stop
ONT2:10 pmOntario

See travel insights to Buffalo from

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 September, then book flights to Buffalo from Ontario during January instead. Flights to Buffalo in January, while not as cheap as those in September, still average around $346.

What is the cheapest day to depart on your flight to Buffalo?

Our data shows that Monday is the least expensive day to fly to Buffalo. Tickets to fly out on this day can be as low as $354. Flights from Ontario to Buffalo on a Sunday will generally be more expensive and average around $442. 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?

In the afternoon is the cheapest time of day to fly from Ontario to Buffalo when you can find flight prices for as low as $184. Flying to Buffalo in the afternoon is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to Buffalo, so prices are often more expensive at around $438 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 7 weeks ahead of your departure date. In general, you can expect to find flights to Buffalo for around $488 when searching 7 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 $275 on momondo.

How have Ontario to Buffalo flight prices changed over time?

As of February 2025, prices for Ontario to Buffalo flights are approximately 307% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Buffalo

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Buffalo according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$136

Fastest flight time

6h 12m

Direct flights

None

Airports in Buffalo

1 airport
The best one-way flight to Buffalo from Ontario in the past 72 hours is $136. The best round-trip flight deal from Ontario to Buffalo found on momondo in the last 72 hours is $279.
The fastest flight from Ontario to Buffalo takes 6h 12m
There are no direct flights from Ontario to Buffalo. Popular non-direct route for this connection is Ontario Airport - Buffalo Airport.
There is 1 airport near Buffalo: Buffalo (BUF)

  • How far is Ontario to Buffalo by plane?

    There are 2161.5 mi between Ontario and Buffalo. 6h 12m 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?

  • 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?


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
FrontierPriceFrom $138Free CancellationRating
6.0
3,340 reviews
Search Frontier flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $286Free CancellationRating
8.0
8,147 reviews
Search Delta flights
JetBluePriceFrom $288Free CancellationRating
7.4
3,038 reviews
Search JetBlue flights
SouthwestPriceFrom $306Free CancellationRating
8.1
4,369 reviews
Search Southwest flights

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Batavia
Williamsville
Amherst
Cheektowaga
Tonawanda
Lockport
West Seneca
East Aurora
Orchard Park
Grand Island
Bowmansville
Eden
Angola

Why 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.


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