Which airports can I use when flying from Ontario to Buffalo?

Flights from Ontario to Buffalo usually depart from Ontario (ONT) and arrive at Buffalo (BUF).

What cabin classes can I book on flights from Ontario to Buffalo?

Only Economy Class is available on flights from Ontario to Buffalo.

Which airports do connecting flights from Ontario to Buffalo pass through?

One-stop flights from Ontario to Buffalo most commonly connect through: • Chicago O'Hare Intl (ORD) - 53% of one-stop connections • Dallas/Fort Worth (DFW) - 16% of one-stop connections • Atlanta Hartsfield-Jackson (ATL) - 11% of one-stop connections • Denver Intl (DEN) - 5% of one-stop connections

Can I save money by using flexible dates for flights from Ontario to Buffalo?

Yes. Flexible dates can save you up to 66% on flights from Ontario to Buffalo. Monday is the cheapest departure day at $377 round-trip on average, while Sunday is the most expensive at $1,096, a difference of $719. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How long is a flight from Ontario to Buffalo?

A nonstop flight from Ontario to Buffalo takes 00m, covering 2,167 miles.

Do I need a passport to fly from Ontario to Buffalo?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

How are flight prices from Ontario to Buffalo looking right now?

One-way fares from Ontario to Buffalo are currently lower than usual. Average one-way flight prices are about $214, which is 28% below the typical average for this route.

How much time can I save by choosing a different layover airport from Ontario to Buffalo?

Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 6h 37m, compared with 7h 02m via Las Vegas Harry Reid Intl (LAS) and 7h 21m via Dallas/Fort Worth (DFW).

What is the time difference between Ontario and Buffalo?

Buffalo is 3 hours ahead of Ontario (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Buffalo Airport (BUF)?

Buffalo Airport (BUF) hosts 5 major car rental companies, with daily rates averaging $82 for economy cars. Top options include: • Dollar • Budget • Hertz • Thrifty • Alamo

How much should I expect to pay for a Ontario to Buffalo flight?

Round-trip flights from Ontario to Buffalo range from $428 to $655, with an average of $526 over the past 12 months. Anything below $428 counts as a good deal.

How much is a round-trip flight from Ontario to Buffalo?

Round-trip flights from Ontario to Buffalo typically range from $428 to $655. The lowest price found in the past 5 days was $304, on American Airlines.

What's the cheapest day of the week to fly from Ontario to Buffalo?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Ontario to Buffalo. It’s 29% cheaper than the average day, while Sunday is the most expensive, with prices 108% higher.

Which airline is the cheapest to fly from Ontario to Buffalo?

American Airlines ($304) and Frontier ($317) are the cheapest airlines to fly round-trip from Ontario to Buffalo according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Ontario to Buffalo?

Chicago O'Hare Intl (ORD) is the most popular layover for the Ontario to Buffalo route. 53% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via ORD.

What is the cheapest layover airport when flying from Ontario to Buffalo?

Flights via Las Vegas Harry Reid Intl (LAS) offer the most affordable fares, with an average round-trip price of $377. Based on KAYAK data over the past 3 months.

When flying from Ontario to Buffalo which airport offers the shortest layover?

Denver Intl (DEN) had the shortest average connection time for Ontario to Buffalo layovers at 3h 38m over the past 3 months.

$163 CHEAP FLIGHTS from Ontario to Buffalo (ONT - BUF)

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$304

Typical prices: $428-$655

American Airlines

Sat 12/1Wed 12/5

ONT - BUF • 1 stop

Cheapest one-way

$163

Typical prices: $238-$410

Delta

Fri 11/16

ONT - BUF • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Ontario and Buffalo. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

November

Cheapest • 33% price drop

July

Most popular

Good to know

Top layover airports

Las Vegas Harry Reid Intl (LAS)

Cheapest • Avg $377 (round-trip)

Denver Intl (DEN)

Shortest trip • 6h 37m (one-way)

Insights

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Buffalo!

Flight Deals

Cheap Flights from Ontario to Buffalo (ONT-BUF)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Ontario to Buffalo

Tue, Dec 1 - Sat, Dec 5

12:45 pm - 10:53 pmONT Ontario-BUF Buffalo

7h 08m1 stop Dallas/Fort Worth

7:00 am - 6:27 pmBUF Buffalo-ONT Ontario

14h 27m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

$304American Airlines

Tue, Dec 1 - Sat, Dec 5

7:45 pm - 10:56 amONT Ontario-BUF Buffalo

12h 11m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

7:00 am - 6:27 pmBUF Buffalo-ONT Ontario

14h 27m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

$309American Airlines

Tue, Dec 8 - Fri, Dec 11

6:00 am - 12:20 pmONT Ontario-BUF Buffalo

27h 20m2 stops Denver Intl Atlanta Hartsfield-Jackson

2:30 pm - 10:45 amBUF Buffalo-ONT Ontario

23h 15m2 stops Orlando Denver Intl

$317Frontier

Tue, Dec 8 - Sat, Dec 12

1:40 pm - 10:57 pmONT Ontario-BUF Buffalo

6h 17m1 stop Denver Intl

8:17 am - 12:34 pmBUF Buffalo-ONT Ontario

7h 17m1 stop Denver Intl

$325United Airlines

Tue, Dec 1 - Sat, Dec 5

1:40 pm - 10:57 pmONT Ontario-BUF Buffalo

6h 17m1 stop Denver Intl

8:17 am - 12:34 pmBUF Buffalo-ONT Ontario

7h 17m1 stop Denver Intl

$325United Airlines

Tue, Dec 1 - Sat, Dec 5

12:45 pm - 10:53 pmONT Ontario-BUF Buffalo

7h 08m1 stop Dallas/Fort Worth

7:00 am - 1:24 pmBUF Buffalo-ONT Ontario

9h 24m1 stop Dallas/Fort Worth

$325American Airlines

Tue, Dec 8 - Fri, Dec 11

1:40 pm - 10:57 pmONT Ontario-BUF Buffalo

6h 17m1 stop Denver Intl

8:17 am - 12:34 pmBUF Buffalo-ONT Ontario

7h 17m1 stop Denver Intl

$345United Airlines

Thu, Dec 3 - Sun, Dec 6

10:05 am - 8:50 pmONT Ontario-BUF Buffalo

7h 45m1 stop Denver Intl

7:20 am - 1:05 pmBUF Buffalo-ONT Ontario

8h 45m1 stop Chicago Midway

$379Southwest

Wed, Jan 6 - Tue, Jan 12

6:15 am - 3:55 pmONT Ontario-BUF Buffalo

6h 40m1 stop Las Vegas Harry Reid Intl

4:35 pm - 8:25 pmBUF Buffalo-ONT Ontario

6h 50m1 stop Las Vegas Harry Reid Intl

$393Southwest

Wed, Jan 6 - Mon, Jan 11

6:15 am - 3:55 pmONT Ontario-BUF Buffalo

6h 40m1 stop Las Vegas Harry Reid Intl

2:05 pm - 6:10 pmBUF Buffalo-ONT Ontario

7h 05m1 stop Chicago Midway

$412Southwest

Recent last minute flight deals from Ontario to Buffalo

Wed, Nov 4 - Wed, Nov 11

6:30 am - 5:52 pmONT Ontario-BUF Buffalo

32h 22m2 stops Denver Intl Orlando

2:00 pm - 11:51 pmBUF Buffalo-ONT Ontario

12h 51m2 stops Atlanta Hartsfield-Jackson Denver Intl

$786Frontier

Mon, Nov 2 - Mon, Nov 9

6:30 am - 9:40 pmONT Ontario-BUF Buffalo

12h 10m2 stops Phoenix Sky Harbor Intl Charlotte Douglas

7:14 am - 11:52 amBUF Buffalo-ONT Ontario

7h 38m1 stop Dallas/Fort Worth

$801American Airlines

Mon, Nov 2 - Mon, Nov 9

6:30 am - 9:40 pmONT Ontario-BUF Buffalo

12h 10m2 stops Phoenix Sky Harbor Intl Charlotte Douglas

12:10 pm - 9:32 pmBUF Buffalo-ONT Ontario

12h 22m2 stops Washington, D.C. Reagan-National Dallas/Fort Worth

$806American Airlines

Mon, Nov 2 - Mon, Nov 9

12:16 pm - 11:59 pmONT Ontario-BUF Buffalo

8h 43m1 stop Atlanta Hartsfield-Jackson

6:00 am - 11:03 amBUF Buffalo-ONT Ontario

8h 03m1 stop Atlanta Hartsfield-Jackson

$847Delta

Wed, Nov 4 - Wed, Nov 11

5:33 pm - 5:52 pmONT Ontario-BUF Buffalo

21h 19m2 stops Dallas/Fort Worth Orlando

2:00 pm - 11:16 amBUF Buffalo-ONT Ontario

24h 16m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl

$914Frontier

Sat, Oct 31 - Mon, Nov 2

5:33 pm - 6:52 pmONT Ontario-BUF Buffalo

22h 19m2 stops Dallas/Fort Worth Orlando

1:48 pm - 11:51 pmBUF Buffalo-ONT Ontario

13h 03m2 stops Atlanta Hartsfield-Jackson Denver Intl

$959Frontier

Wed, Nov 4 - Wed, Nov 11

6:00 am - 9:40 pmONT Ontario-BUF Buffalo

12h 40m2 stops Dallas/Fort Worth Charlotte Douglas

7:03 am - 10:12 pmBUF Buffalo-ONT Ontario

18h 09m1 stop Charlotte Douglas

$1,012American Airlines

Sun, Nov 1 - Fri, Nov 6

6:00 am - 9:37 pmONT Ontario-BUF Buffalo

12h 37m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

4:40 pm - 11:46 pmBUF Buffalo-ONT Ontario

10h 06m1 stop Dallas/Fort Worth

$1,035American Airlines

Sun, Nov 1 - Fri, Nov 6

6:57 am - 5:02 pmONT Ontario-BUF Buffalo

7h 05m1 stop Chicago O'Hare Intl

8:50 am - 12:30 pmBUF Buffalo-ONT Ontario

6h 40m1 stop Denver Intl

$1,112United Airlines

Thu, Nov 5 - Sat, Nov 7

7:00 am - 5:02 pmONT Ontario-BUF Buffalo

7h 02m1 stop Chicago O'Hare Intl

8:50 am - 12:33 pmBUF Buffalo-ONT Ontario

6h 43m1 stop Denver Intl

$1,112United Airlines

Booking Insights

Price, demand and travel trends for Ontario to Buffalo flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Ontario to Buffalo? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Buffalo departing in december.
What's the cheapest day of the week to fly from Ontario to Buffalo?: Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Ontario to Buffalo. It’s 29% cheaper than the average day, while Sunday is the most expensive, with prices 108% higher.

Find deals

Low season	March
High season	July
Cheapest flight	$163

Beat the crowds with an average 85% drop in travelers.

The most popular month to fly with an average 59% increase in travelers.

One-way flight from Ontario to Buffalo

When to book flights from Ontario to Buffalo

Are your dates flexible? Find out the best times to travel from Ontario to Buffalo based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Ontario to Buffalo?
Only Economy Class is available on flights from Ontario to Buffalo.
How long is a flight from Ontario to Buffalo?
A nonstop flight from Ontario to Buffalo takes 00m, covering 2,167 miles.
Do I need a passport to fly from Ontario to Buffalo?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
How much should I expect to pay for a Ontario to Buffalo flight?
Round-trip flights from Ontario to Buffalo range from $428 to $655, with an average of $526 over the past 12 months. Anything below $428 counts as a good deal.
How are flight prices from Ontario to Buffalo looking right now?
One-way fares from Ontario to Buffalo are currently lower than usual. Average one-way flight prices are about $214, which is 28% below the typical average for this route.
What car rental options are available at Buffalo Airport (BUF)?
Buffalo Airport (BUF) hosts 5 major car rental companies, with daily rates averaging $82 for economy cars. Top options include:

• Dollar
• Budget
• Hertz
• Thrifty
• Alamo
Which airports can I use when flying from Ontario to Buffalo?
Flights from Ontario to Buffalo usually depart from Ontario (ONT) and arrive at Buffalo (BUF).
Which airports do connecting flights from Ontario to Buffalo pass through?
One-stop flights from Ontario to Buffalo most commonly connect through:

• Chicago O'Hare Intl (ORD) - 53% of one-stop connections
• Dallas/Fort Worth (DFW) - 16% of one-stop connections
• Atlanta Hartsfield-Jackson (ATL) - 11% of one-stop connections
• Denver Intl (DEN) - 5% of one-stop connections
Can I save money by using flexible dates for flights from Ontario to Buffalo?
Yes. Flexible dates can save you up to 66% on flights from Ontario to Buffalo. Monday is the cheapest departure day at $377 round-trip on average, while Sunday is the most expensive at $1,096, a difference of $719.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport from Ontario to Buffalo?
Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 6h 37m, compared with 7h 02m via Las Vegas Harry Reid Intl (LAS) and 7h 21m via Dallas/Fort Worth (DFW).
What is the time difference between Ontario and Buffalo?
Buffalo is 3 hours ahead of Ontario (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

If your dates are flexible, aim for a Monday departure and avoid flying on Sunday. On this route, Monday flights average $377, about $719 less than Sunday fares (66% savings) based on the last 12 months.
If you can choose when to travel, plan your Ontario to Buffalo trip for November. Fares historically average $351 round-trip in that month - typically $540 less than the most expensive month, which is October (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Buffalo Airport.

• Aloft Buffalo Airport
• Comfort Inn and Suites Buffalo Airport
• TownePlace Suites by Marriott Buffalo Airport

More options for your flight from Ontario to Buffalo

Add a hotel or car rental

Airports

Cabin class

Direct Flights

Origins

Other destinations

Return flight

Complete your trip to Buffalo with a hotel stay or car rental

Car rentals in Buffalo

Hotels in Buffalo

Vacations in Buffalo

ONT - BUF

$163 Find Cheap Flights from Ontario to Buffalo - Compare and Save

Everything you should know

Cheap Flights from Ontario to Buffalo (ONT-BUF)

Recent round-trip flight deals from Ontario to Buffalo

Recent one-way flight deals from Ontario to Buffalo

Recent last minute flight deals from Ontario to Buffalo

Price, demand and travel trends for Ontario to Buffalo flights

How much is a round-trip flight from Ontario to Buffalo?

What's the cheapest day of the week to fly from Ontario to Buffalo?

Which airline is the cheapest to fly from Ontario to Buffalo?

What’s the most popular layover airport when flying from Ontario to Buffalo?

What is the cheapest layover airport when flying from Ontario to Buffalo?

When flying from Ontario to Buffalo which airport offers the shortest layover?

Key details for Ontario to Buffalo flights

Low season

High season

Cheapest flight

When to book flights from Ontario to Buffalo

Your Ontario to Buffalo flight questions, answered

Your guide to booking Ontario to Buffalo flights

More options for your flight from Ontario to Buffalo

Complete your trip to Buffalo with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to Buffalo

Find direct flights to and from Ontario and Buffalo

Flights from domestic origins to Buffalo

Flights to other popular destinations

Find deals for your return flight