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

Frontier, Delta, and JetBlue are the most popular carriers operating from Buffalo to Ontario

What airlines fly to Ontario?

American Airlines, Southwest and JetBlue are the top three most popular airlines that fly to Ontario from Buffalo according to our data. American Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Buffalo Airport to Ontario Airport?

Prices for flights from Buffalo Airport to Ontario Airport are updated daily.

How many operators does momondo search for flights from Buffalo Airport to Ontario Airport?

As of July 2025, there are 2 operators available to choose from for flights from Buffalo Airport to Ontario Airport.

How old do you have to be to fly from Buffalo Airport to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$129 Cheap Flights from Buffalo to Ontario in 2025

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Find the cheapest flights from Buffalo to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

2:11 pm - 11:50 pmBUF-ONT

12h 39m1 stop

12:59 am - 4:17 pmONT-BUF

12h 18m1 stop

$268Frontier

Find Deal

Mon, Aug 11 - Tue, Aug 12

5:12 pm - 11:50 pmBUF-ONT

9h 38m1 stop

12:59 am - 1:16 pmONT-BUF

9h 17m1 stop

$275Frontier

Find Deal

Wed, Aug 13 - Sun, Aug 17

5:12 pm - 11:50 pmBUF-ONT

9h 38m1 stop

5:21 pm - 1:16 pmONT-BUF

16h 55m1 stop

$277Frontier

Find Deal

Wed, Aug 13 - Sun, Aug 17

4:55 pm - 11:50 pmBUF-ONT

9h 55m1 stop

12:59 am - 4:00 pmONT-BUF

12h 01m1 stop

$278Frontier

Find Deal

Fri, Aug 22 - Sun, Aug 24

5:31 pm - 10:48 pmBUF-ONT

8h 17m1 stop

11:29 pm - 12:04 pmONT-BUF

9h 35m1 stop

$287American Airlines

Find Deal

Wed, Aug 20 - Tue, Aug 26

2:44 pm - 9:10 pmBUF-ONT

9h 26m1 stop

10:50 am - 11:31 pmONT-BUF

9h 41m2 stops

$292American Airlines

Find Deal

Wed, Aug 20 - Tue, Aug 26

4:43 pm - 10:20 pmBUF-ONT

8h 37m1 stop

11:45 am - 11:57 pmONT-BUF

9h 12m1 stop

$297Delta

Find Deal

Wed, Aug 20 - Tue, Aug 26

6:00 am - 10:35 amBUF-ONT

7h 35m1 stop

7:05 am - 11:24 pmONT-BUF

13h 19m2 stops

$302Delta

Find Deal

Wed, Aug 20 - Tue, Aug 26

8:33 am - 12:32 pmBUF-ONT

6h 59m1 stop

1:15 pm - 10:56 pmONT-BUF

6h 41m1 stop

$387United Airlines

Find Deal

Wed, Aug 27 - Wed, Sep 3

5:54 pm - 10:30 pmBUF-ONT

7h 36m1 stop

5:10 am - 9:16 pmONT-BUF

13h 06m2 stops

$392United Airlines

Find Deal

Wed, Aug 27 - Wed, Sep 3

Frontier flights from Buffalo to Ontario

Our best Frontier deals on Buffalo to Ontario flight tickets

Frontier

Aug 11

BUF2:11 pmBuffalo

12h 39m

1 stop

ONT11:50 pmOntario

Aug 12

ONT12:59 amOntario

12h 18m

1 stop

BUF4:17 pmBuffalo

$268

Find similar

Frontier

Aug 13

BUF5:12 pmBuffalo

9h 38m

1 stop

ONT11:50 pmOntario

Aug 17

ONT12:59 amOntario

9h 17m

1 stop

BUF1:16 pmBuffalo

$275

Find similar

Frontier

Aug 13

BUF5:12 pmBuffalo

9h 38m

1 stop

ONT11:50 pmOntario

Aug 17

ONT5:21 pmOntario

16h 55m

1 stop

BUF1:16 pmBuffalo

$277

Find similar

American Airlines flights from Buffalo to Ontario

Our best American Airlines deals on Buffalo to Ontario flight tickets

American Airlines

Aug 20

BUF5:31 pmBuffalo

8h 17m

1 stop

ONT10:48 pmOntario

Aug 26

ONT11:29 pmOntario

9h 35m

1 stop

BUF12:04 pmBuffalo

$287

Find similar

American Airlines

Aug 20

BUF2:44 pmBuffalo

9h 26m

1 stop

ONT9:10 pmOntario

Aug 26

ONT10:50 amOntario

9h 41m

2 stops

BUF11:31 pmBuffalo

$292

Find similar

American Airlines

Aug 20

BUF2:44 pmBuffalo

9h 26m

1 stop

ONT9:10 pmOntario

Aug 25

ONT11:59 pmOntario

9h 33m

1 stop

BUF12:32 pmBuffalo

$312

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Mon 8/11

2:11 pm-11:50 pm

1 stop12h 39m

Ontario

Tue 8/12

12:59 am-4:17 pm

1 stop12h 18m

$268

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 8/13

5:12 pm-11:50 pm

1 stop9h 38m

Ontario

Sun 8/17

12:59 am-1:16 pm

1 stop9h 17m

$275

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 8/13

5:12 pm-11:50 pm

1 stop9h 38m

Ontario

Sun 8/17

5:21 pm-1:16 pm

1 stop16h 55m

$277

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 8/22

4:55 pm-11:50 pm

1 stop9h 55m

Ontario

Sun 8/24

12:59 am-4:00 pm

1 stop12h 01m

$278

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 8/20

5:31 pm-10:48 pm

1 stop8h 17m

Ontario

Tue 8/26

11:29 pm-12:04 pm

1 stop9h 35m

$287

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 8/20

2:44 pm-9:10 pm

1 stop9h 26m

Ontario

Tue 8/26

10:50 am-11:31 pm

2 stops9h 41m

$292

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 8/20

4:43 pm-10:20 pm

1 stop8h 37m

Ontario

Tue 8/26

11:45 am-11:57 pm

1 stop9h 12m

$297

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 8/20

6:00 am-10:35 am

1 stop7h 35m

Ontario

Tue 8/26

7:05 am-11:24 pm

2 stops13h 19m

$302

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 8/27

8:33 am-12:32 pm

1 stop6h 59m

Ontario

Wed 9/3

1:15 pm-10:56 pm

1 stop6h 41m

$387

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 8/27

5:54 pm-10:30 pm

1 stop7h 36m

Ontario

Wed 9/3

5:10 am-9:16 pm

2 stops13h 06m

$392

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 Buffalo to Ontario

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 Ontario?

In general, September is the cheapest month to fly from Buffalo to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $301. If you aren’t able to travel during the month of September, then book flights to Ontario from Buffalo during August instead. Flights to Ontario in August, while not as cheap as those in September, still average around $393.

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

The cheapest day to depart on your flight to Ontario is on a Saturday when prices can be found for as low as $286. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Buffalo to Ontario for around $626.

What is the cheapest time of day to depart on your flight to Ontario?

In the evening is the cheapest time of day to fly from Buffalo to Ontario when you can find flight prices for as low as $247. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $832 on average. Flights to Ontario from Buffalo at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Buffalo to Ontario

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

Estimated round-trip price

Cheap Buffalo to Ontario (BUF to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Ontario

Best Price Found	$129
Fastest flight time	6h 59m
Direct flights	None
Airports in Ontario	1 airport

The best one-way flight to Ontario from Buffalo in the past 72 hours is $129. The best round-trip flight deal from Buffalo to Ontario found on momondo in the last 72 hours is $268.

The fastest flight from Buffalo to Ontario takes 6h 59m

There are no direct flights from Buffalo to Ontario. Popular non-direct route for this connection is Buffalo Airport - Ontario Airport.

There is 1 airport near Ontario: Ontario (ONT)

Search flight deals

How far is Buffalo to Ontario by plane?
Ontario is 2161.5 mi away from Buffalo. 6h 59m is a normal flight duration for this route.
When did momondo last update prices for flights from Buffalo Airport to Ontario Airport?
Prices for flights from Buffalo Airport to Ontario Airport are updated daily.
How many operators does momondo search for flights from Buffalo Airport to Ontario Airport?
As of July 2025, there are 2 operators available to choose from for flights from Buffalo Airport to Ontario Airport.
How old do you have to be to fly from Buffalo Airport to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Buffalo to Ontario?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Buffalo to Ontario is Southwest (62% of total bookings). The next most popular airline is American Airlines (38%).

Best airlines flying from Buffalo to Ontario

Compare and see reviews for airlines that fly from Buffalo to Ontario with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $192	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights
Southwest	PriceFrom $370	Free Cancellation	Rating 8.0 4,246 reviews		Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to Ontario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Buffalo to Ontario for you.

Can I find flights from Buffalo to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Buffalo on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Buffalo to Ontario?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Buffalo.

I’m not ready to book a flight from Buffalo to Ontario right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Buffalo to Ontario 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.