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Cheap flights from Ontario to Buffalo from $154

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 4/22. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Buffalo.
JetBlue Logo
10:59 pm - 9:43 amONT-BUF
7h 44m1 stop
JetBlue Logo
3:05 pm - 9:11 pmBUF-ONT
9h 06m1 stop
$291JetBlue
Find Deal
Tue, May 6 - Tue, May 13
Frontier Logo
12:59 am - 4:29 pmONT-BUF
12h 30m1 stop
Frontier Logo
5:24 pm - 11:50 pmBUF-ONT
9h 26m1 stop
$298Frontier
Find Deal
Thu, Jun 5 - Mon, Jun 9
Delta Logo
10:15 pm - 11:00 amONT-BUF
9h 45m1 stop
Delta Logo
5:59 pm - 11:41 pmBUF-ONT
8h 42m2 stops
$312Delta
Find Deal
Wed, Apr 23 - Mon, Apr 28
Delta Logo
5:15 pm - 11:00 amONT-BUF
14h 45m2 stops
Delta Logo
12:50 pm - 11:41 pmBUF-ONT
13h 51m2 stops
$317Delta
Find Deal
Wed, Apr 23 - Mon, Apr 28
American Airlines Logo
7:25 pm - 9:38 amONT-BUF
11h 13m2 stops
American Airlines Logo
7:32 pm - 11:43 pmBUF-ONT
7h 11m1 stop
$348American Airlines
Find Deal
Thu, May 1 - Mon, May 5
American Airlines Logo
7:25 pm - 9:38 amONT-BUF
11h 13m2 stops
American Airlines Logo
2:25 pm - 9:57 pmBUF-ONT
10h 32m2 stops
$353American Airlines
Find Deal
Thu, May 1 - Mon, May 5
Southwest Logo
9:20 pm - 8:00 amONT-BUF
7h 40m1 stop
Southwest Logo
5:00 am - 9:15 amBUF-ONT
7h 15m1 stop
$381Southwest
Find Deal
Sat, Jul 19 - Sat, Jul 26
Southwest Logo
9:20 pm - 8:00 amONT-BUF
7h 40m1 stop
Southwest Logo
5:05 am - 8:55 amBUF-ONT
6h 50m1 stop
$392Southwest
Find Deal
Thu, Jul 17 - Thu, Jul 24
United Airlines Logo
6:39 pm - 9:54 amONT-BUF
12h 15m2 stops
United Airlines Logo
8:25 am - 12:32 pmBUF-ONT
7h 07m1 stop
$442United Airlines
Find Deal
Tue, Jul 1 - Fri, Jul 4
United Airlines Logo
6:39 pm - 9:54 amONT-BUF
12h 15m2 stops
United Airlines Logo
7:00 am - 5:38 pmBUF-ONT
13h 38m2 stops
$447United Airlines
Find Deal
Tue, Jul 1 - Fri, Jul 4

JetBlue flights from Ontario to Buffalo

Our best JetBlue deals on Ontario to Buffalo flight tickets
JetBlue
May 6
ONT10:59 pmOntario
7h 44m
1 stop
BUF9:43 amBuffalo
May 13
BUF3:05 pmBuffalo
9h 06m
1 stop
ONT9:11 pmOntario
JetBlue
May 1
ONT10:40 pmOntario
8h 08m
1 stop
BUF9:48 amBuffalo
May 5
BUF3:05 pmBuffalo
9h 20m
1 stop
ONT9:25 pmOntario
JetBlue
May 1
ONT10:40 pmOntario
8h 08m
1 stop
BUF9:48 amBuffalo
May 7
BUF3:05 pmBuffalo
9h 06m
1 stop
ONT9:11 pmOntario

Frontier flights from Ontario to Buffalo

Our best Frontier deals on Ontario to Buffalo flight tickets
Frontier
Jun 5
ONT12:59 amOntario
12h 30m
1 stop
BUF4:29 pmBuffalo
Jun 9
BUF5:24 pmBuffalo
9h 26m
1 stop
ONT11:50 pmOntario
Frontier
Jun 15
ONT12:59 amOntario
12h 30m
1 stop
BUF4:29 pmBuffalo
Jun 20
BUF5:24 pmBuffalo
9h 26m
1 stop
ONT11:50 pmOntario
Frontier
Jul 1
ONT12:59 amOntario
12h 30m
1 stop
BUF4:29 pmBuffalo
Jul 14
BUF5:24 pmBuffalo
9h 26m
1 stop
ONT11:50 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 Saturday is the least expensive day to fly to Buffalo. Tickets to fly out on this day can be as low as $350. Flights from Ontario to Buffalo on a Sunday will generally be more expensive and average around $471. 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 $430 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 $475 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 April 2025, prices for Ontario to Buffalo flights are approximately 4% 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

$154

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 $154. The best round-trip flight deal from Ontario to Buffalo found on momondo in the last 72 hours is $291.
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
5.9
3,276 reviews
Search Frontier flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
JetBluePriceFrom $259Free CancellationRating
7.3
2,921 reviews
Search JetBlue flights
DeltaPriceFrom $286Free CancellationRating
8.0
7,897 reviews
Search Delta flights
SouthwestPriceFrom $346Free CancellationRating
8.0
4,272 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
Cheektowaga
Amherst
Tonawanda
Lockport
Grand Island
West Seneca
East Aurora
Orchard Park
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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