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Cheap flights from Ontario to Buffalo from $105

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 6/5. 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.
Frontier Logo
5:21 pm - 4:29 pmONT-BUF
20h 08m1 stop
Frontier Logo
5:14 pm - 11:50 pmBUF-ONT
9h 36m1 stop
$242Frontier
Find Deal
jue., may. 29 - vie., jun. 6
JetBlue Logo
10:59 pm - 9:43 amONT-BUF
7h 44m1 stop
JetBlue Logo
12:29 pm - 9:59 pmBUF-ONT
12h 30m1 stop
$291JetBlue
Find Deal
lun., jun. 9 - vie., jun. 13
Delta Logo
10:59 pm - 11:16 amONT-BUF
9h 17m1 stop
Delta Logo
6:00 am - 11:07 amBUF-ONT
8h 07m1 stop
$297Delta
Find Deal
mar., jul. 8 - mar., jul. 15
Delta Logo
10:59 pm - 3:07 pmONT-BUF
13h 08m2 stops
Delta Logo
4:43 pm - 10:29 pmBUF-ONT
8h 46m1 stop
$302Delta
Find Deal
mar., jul. 8 - mar., jul. 15
Southwest Logo
9:20 pm - 8:00 amONT-BUF
7h 40m1 stop
Southwest Logo
7:50 pm - 11:30 pmBUF-ONT
6h 40m1 stop
$343Southwest
Find Deal
mié., jul. 9 - jue., jul. 17
Southwest Logo
1:45 pm - 12:50 amONT-BUF
8h 05m2 stops
Southwest Logo
7:50 pm - 11:30 pmBUF-ONT
6h 40m1 stop
$355Southwest
Find Deal
mié., jul. 9 - jue., jul. 17
United Airlines Logo
6:39 pm - 9:54 amONT-BUF
12h 15m2 stops
United Airlines Logo
5:54 pm - 10:11 pmBUF-ONT
7h 17m1 stop
$372United Airlines
Find Deal
mar., jul. 1 - vie., jul. 11
United Airlines Logo
1:34 pm - 10:55 pmONT-BUF
6h 21m1 stop
United Airlines Logo
8:25 am - 12:32 pmBUF-ONT
7h 07m1 stop
$387United Airlines
Find Deal
mié., ago. 6 - mié., ago. 13
American Airlines Logo
12:45 pm - 10:31 pmONT-BUF
6h 46m1 stop
American Airlines Logo
5:31 am - 12:00 pmBUF-ONT
9h 29m2 stops
$404American Airlines
Find Deal
jue., may. 29 - vie., jun. 6
American Airlines Logo
7:25 pm - 9:41 amONT-BUF
11h 16m2 stops
American Airlines Logo
2:34 pm - 10:14 pmBUF-ONT
10h 40m2 stops
$409American Airlines
Find Deal
jue., may. 29 - vie., jun. 6

JetBlue flights from Ontario to Buffalo

Our best JetBlue deals on Ontario to Buffalo flight tickets
JetBlue
Jun 9
ONT10:59 pmOntario
7h 44m
1 stop
BUF9:43 amBuffalo
Jun 13
BUF12:29 pmBuffalo
12h 30m
1 stop
ONT9:59 pmOntario
JetBlue
Jun 10
ONT10:55 pmOntario
7h 48m
1 stop
BUF9:43 amBuffalo
Jun 12
BUF12:29 pmBuffalo
12h 30m
1 stop
ONT9:59 pmOntario
JetBlue
Jun 9
ONT10:59 pmOntario
7h 44m
1 stop
BUF9:43 amBuffalo
Jun 16
BUF12:29 pmBuffalo
12h 30m
1 stop
ONT9:59 pmOntario

Alaska Airlines flights from Ontario to Buffalo

Our best Alaska Airlines deals on Ontario to Buffalo flight tickets
Alaska Airlines
Jun 11
ONT6:00 amOntario
14h 29m
2 stops
BUF11:29 pmBuffalo
Jun 14
BUF11:31 amBuffalo
15h 42m
2 stops
ONT12:13 amOntario
Alaska Airlines
Jun 11
ONT7:20 pmOntario
13h 46m
2 stops
BUF12:06 pmBuffalo
Jun 20
BUF1:00 pmBuffalo
14h 13m
2 stops
ONT12:13 amOntario
Alaska Airlines
Sep 18
ONT3:00 pmOntario
15h 36m
2 stops
BUF9:36 amBuffalo
Sep 21
BUF1:42 pmBuffalo
13h 17m
2 stops
ONT11:59 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 26 weeks ahead of your departure date. In general, you can expect to find flights to Buffalo for around $467 when searching 26 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 $306 on momondo.

How have Ontario to Buffalo flight prices changed over time?

As of April 2025, prices for Ontario to Buffalo flights are approximately 80% 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

$105

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 $105. The best round-trip flight deal from Ontario to Buffalo found on momondo in the last 72 hours is $242.
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 $209Free CancellationRating
5.9
3,283 reviews
Search Frontier flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
JetBluePriceFrom $259Free CancellationRating
7.3
2,924 reviews
Search JetBlue flights
DeltaPriceFrom $266Free CancellationRating
8.0
7,920 reviews
Search Delta flights
SouthwestPriceFrom $346Free CancellationRating
8.0
4,287 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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