What airlines fly to Buffalo?

American Airlines, JetBlue and Southwest 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 32% 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.

What is the cheapest airline that flies from Ontario to Buffalo?

United Airlines is the most popular carrier operating from Ontario to Buffalo

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 December 2025, there are 3 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.

$125 Cheap Flights from Ontario to Buffalo in 2025/26

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Find the cheapest flights from Ontario to Buffalo

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:25 pm - 11:29 amONT-BUF

9h 04m1 stop

4:00 pm - 10:09 pmBUF-ONT

9h 09m1 stop

$293JetBlue

Find Deal

dom., may. 3 - vie., may. 15

11:25 pm - 11:29 amONT-BUF

9h 04m1 stop

4:00 pm - 10:09 pmBUF-ONT

9h 09m1 stop

$300JetBlue

Find Deal

mié., abr. 29 - dom., may. 10

11:25 pm - 11:29 amONT-BUF

9h 04m1 stop

4:00 pm - 10:09 pmBUF-ONT

9h 09m1 stop

$303JetBlue

Find Deal

vie., may. 8 - lun., may. 11

10:20 pm - 11:18 amONT-BUF

9h 58m1 stop

6:00 am - 12:02 pmBUF-ONT

9h 02m1 stop

$307Delta

Find Deal

mié., feb. 18 - mar., feb. 24

10:20 pm - 11:18 amONT-BUF

9h 58m1 stop

6:03 am - 1:54 pmBUF-ONT

10h 51m2 stops

$312Delta

Find Deal

mié., feb. 18 - mar., feb. 24

9:59 am - 11:41 pmONT-BUF

10h 42m2 stops

7:30 am - 6:20 pmBUF-ONT

13h 50m2 stops

$316American Airlines

Find Deal

mié., ene. 7 - lun., ene. 12

10:20 pm - 2:56 pmONT-BUF

13h 36m2 stops

6:03 am - 1:54 pmBUF-ONT

10h 51m2 stops

$317Delta

Find Deal

mié., feb. 18 - mar., feb. 24

7:50 pm - 10:59 amONT-BUF

12h 09m2 stops

1:43 pm - 9:29 pmBUF-ONT

10h 46m1 stop

$320American Airlines

Find Deal

vie., feb. 20 - lun., feb. 23

1:00 pm - 10:00 pmONT-BUF

6h 00m1 stop

6:20 am - 10:40 amBUF-ONT

7h 20m1 stop

$325Southwest

Find Deal

mié., ene. 7 - lun., ene. 12

11:25 pm - 11:29 amONT-BUF

9h 04m1 stop

4:00 pm - 10:09 pmBUF-ONT

9h 09m1 stop

$327JetBlue

Find Deal

lun., may. 4 - mar., may. 12

JetBlue flights from Ontario to Buffalo

Our best JetBlue deals on Ontario to Buffalo flight tickets

JetBlue

May 3

ONT11:25 pmOntario

9h 04m

1 stop

BUF11:29 amBuffalo

May 15

BUF4:00 pmBuffalo

9h 09m

1 stop

ONT10:09 pmOntario

$293

Find similar

JetBlue

Apr 29

ONT11:25 pmOntario

9h 04m

1 stop

BUF11:29 amBuffalo

May 10

BUF4:00 pmBuffalo

9h 09m

1 stop

ONT10:09 pmOntario

$300

Find similar

JetBlue

May 8

ONT11:25 pmOntario

9h 04m

1 stop

BUF11:29 amBuffalo

May 11

BUF4:00 pmBuffalo

9h 09m

1 stop

ONT10:09 pmOntario

$303

Find similar

Delta flights from Ontario to Buffalo

Our best Delta deals on Ontario to Buffalo flight tickets

Delta

Feb 18

ONT10:20 pmOntario

9h 58m

1 stop

BUF11:18 amBuffalo

Feb 24

BUF6:00 amBuffalo

9h 02m

1 stop

ONT12:02 pmOntario

$307

Find similar

Delta

Feb 18

ONT10:20 pmOntario

9h 58m

1 stop

BUF11:18 amBuffalo

Feb 24

BUF6:03 amBuffalo

10h 51m

2 stops

ONT1:54 pmOntario

$312

Find similar

Delta

Feb 18

ONT10:20 pmOntario

13h 36m

2 stops

BUF2:56 pmBuffalo

Feb 24

BUF6:03 amBuffalo

10h 51m

2 stops

ONT1:54 pmOntario

$317

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

dom. 5/3

11:25 pm-11:29 am

1 stop9h 04m

Buffalo

vie. 5/15

4:00 pm-10:09 pm

1 stop9h 09m

$293

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

mié. 4/29

11:25 pm-11:29 am

1 stop9h 04m

Buffalo

dom. 5/10

4:00 pm-10:09 pm

1 stop9h 09m

$300

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

vie. 5/8

11:25 pm-11:29 am

1 stop9h 04m

Buffalo

lun. 5/11

4:00 pm-10:09 pm

1 stop9h 09m

$303

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

mié. 2/18

10:20 pm-11:18 am

1 stop9h 58m

Buffalo

mar. 2/24

6:00 am-12:02 pm

1 stop9h 02m

$307

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

mié. 2/18

10:20 pm-11:18 am

1 stop9h 58m

Buffalo

mar. 2/24

6:03 am-1:54 pm

2 stops10h 51m

$312

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

mié. 1/7

9:59 am-11:41 pm

2 stops10h 42m

Buffalo

lun. 1/12

7:30 am-6:20 pm

2 stops13h 50m

$316

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

mié. 2/18

10:20 pm-2:56 pm

2 stops13h 36m

Buffalo

mar. 2/24

6:03 am-1:54 pm

2 stops10h 51m

$317

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

vie. 2/20

7:50 pm-10:59 am

2 stops12h 09m

Buffalo

lun. 2/23

1:43 pm-9:29 pm

1 stop10h 46m

$320

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

mié. 1/7

1:00 pm-10:00 pm

1 stop6h 00m

Buffalo

lun. 1/12

6:20 am-10:40 am

1 stop7h 20m

$325

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

lun. 5/4

11:25 pm-11:29 am

1 stop9h 04m

Buffalo

mar. 5/12

4:00 pm-10:09 pm

1 stop9h 09m

$327

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Buffalo?

If you aren’t able to travel during the month of January, then book flights to Buffalo from Ontario during May instead. Flights to Buffalo in May, while not as cheap as those in January, 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 $309. Flights from Ontario to Buffalo on a Sunday will generally be more expensive and average around $394. 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 $290. Flying to Buffalo at noon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Buffalo, so prices are often more expensive at around $360 per ticket.

How have Ontario to Buffalo flight prices changed over time?

As of December 2025, prices for Ontario to Buffalo flights are approximately 124% 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

Fastest flight time	6h 48m
Direct flights	None

The fastest flight from Ontario to Buffalo takes 6h 48m

There are no direct flights from Ontario to Buffalo. There are no popular flight routes from Ontario to Buffalo.

Search flight deals

How far is Ontario to Buffalo by plane?
There are 2161.5 mi between Ontario and Buffalo. 6h 00m 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 December 2025, there are 3 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 Southwest, representing 60% of all bookings. The subsequent popular airlines are United Airlines at 25% and American Airlines at 16%.

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
American Airlines	PriceFrom $168	Free Cancellation	Rating 7.2 11,041 reviews	Search American Airlines flights
United Airlines	PriceFrom $297	Free Cancellation	Rating 7.4 9,065 reviews	Search United Airlines flights
Southwest	PriceFrom $353	Free Cancellation	Rating 8.0 4,253 reviews	Search Southwest flights

Batavia

Cheektowaga

Amherst

Tonawanda

Grand Island

Williamsville

Orchard Park

Lockport

West Seneca

East Aurora

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.