ONT - BUF

$138 Find Cheap Flights from Ontario to Buffalo - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$310
Typical prices: $416-$576
American Airlines
Wed 10/10Wed 10/24
ONT - BUF • 1 stop
Cheapest one-way
$138
Typical prices: $234-$410
American Airlines
Sat 10/6
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
Insights
When to travel
April
Cheapest • 14% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Denver Intl (DEN)
Cheapest • Avg $297 (round-trip)
Chicago Midway (MDW)
Shortest trip • 7h 06m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Ontario to Buffalo (ONT-BUF)

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

Recent round-trip flight deals from Ontario to Buffalo

Sat, Oct 10 - Sat, Oct 24
American Airlines Logo
12:43 pm - 10:54 pmONT  Ontario-BUF Buffalo
7h 11m1 stop Dallas/Fort Worth
American Airlines Logo
3:56 pm - 10:59 pmBUF  Buffalo-ONT Ontario
10h 03m1 stop Charlotte Douglas
$310American Airlines
Sat, Oct 10 - Sat, Oct 24
American Airlines Logo
12:43 pm - 10:54 pmONT  Ontario-BUF Buffalo
7h 11m1 stop Dallas/Fort Worth
American Airlines Logo
11:38 am - 6:43 pmBUF  Buffalo-ONT Ontario
10h 05m2 stops Charlotte Douglas Phoenix Sky Harbor Intl
$317American Airlines
Wed, Oct 7 - Tue, Oct 27
Delta Logo
12:16 pm - 11:59 pmONT  Ontario-BUF Buffalo
8h 43m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 11:06 amBUF  Buffalo-ONT Ontario
8h 06m1 stop Atlanta Hartsfield-Jackson
$346Delta
Sat, Oct 10 - Sat, Oct 24
Delta Logo
7:07 am - 10:38 pmONT  Ontario-BUF Buffalo
12h 31m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County
Delta Logo
6:15 am - 12:36 pmBUF  Buffalo-ONT Ontario
9h 21m2 stops Detroit Metropolitan Wayne County Salt Lake City
$357Delta
Sat, Oct 24 - Tue, Oct 27
United Airlines Logo
5:00 am - 8:49 pmONT  Ontario-BUF Buffalo
12h 49m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
8:50 am - 12:33 pmBUF  Buffalo-ONT Ontario
6h 43m1 stop Denver Intl
$390United Airlines
Sat, Oct 24 - Tue, Oct 27
United Airlines Logo
5:00 am - 8:49 pmONT  Ontario-BUF Buffalo
12h 49m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
6:30 am - 6:01 pmBUF  Buffalo-ONT Ontario
14h 31m2 stops Chicago O'Hare Intl San Francisco
$395United Airlines
Tue, Nov 10 - Wed, Nov 11
United Airlines Logo
5:00 am - 10:59 pmONT  Ontario-BUF Buffalo
14h 59m2 stops Denver Intl Newark
United Airlines Logo
10:51 am - 8:51 pmBUF  Buffalo-ONT Ontario
13h 00m2 stops Newark Denver Intl
$395United Airlines
Thu, Oct 15 - Tue, Oct 20
Southwest Logo
1:30 pm - 12:20 amONT  Ontario-BUF Buffalo
7h 50m1 stop Las Vegas Harry Reid Intl
Southwest Logo
6:20 pm - 10:05 pmBUF  Buffalo-ONT Ontario
6h 45m1 stop Phoenix Sky Harbor Intl
$423Southwest
Wed, Oct 14 - Fri, Oct 30
Southwest Logo
10:55 am - 12:30 amONT  Ontario-BUF Buffalo
10h 35m1 stop Phoenix Sky Harbor Intl
Southwest Logo
4:50 pm - 11:50 pmBUF  Buffalo-ONT Ontario
10h 00m2 stops Denver Intl Phoenix Sky Harbor Intl
$454Southwest
Wed, Oct 14 - Fri, Oct 30
Southwest Logo
7:20 pm - 7:50 amONT  Ontario-BUF Buffalo
9h 30m2 stops Phoenix Sky Harbor Intl Baltimore/Washington
Southwest Logo
4:50 pm - 11:55 pmBUF  Buffalo-ONT Ontario
10h 05m2 stops Denver Intl Las Vegas Harry Reid Intl
$454Southwest
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 from Ontario to Buffalo with more confidence.

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

Round-trip flights from Ontario to Buffalo start at $310. Prices are below average for this route right now, with typical round-trip fares ranging from $416 to $576. The lowest price found in the past 5 days was $310 on American Airlines.

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

Tuesday is the cheapest day of the week to fly from Ontario to Buffalo, it is 10% cheaper than the average day. Friday is the most expensive day with flight prices 88% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Ontario to Buffalo flights

Low season

March

Cheapest flight

$138
Most popular time to fly with an average 13% increase in price.
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

Your Ontario to Buffalo flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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?

    Two cabin classes are available on flights from Ontario to Buffalo:

    • Economy Class
    • First Class

  • 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) - 45% of one-stop connections
    • Chicago Midway (MDW) - 14% of one-stop connections
    • Dallas/Fort Worth (DFW) - 10% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 10% of one-stop connections

    Chicago O'Hare Intl (ORD) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 52% on the Ontario to Buffalo route. Tuesday is the cheapest departure day at $428 round-trip on average, while Friday is the most expensive at $891, a difference of $463. 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 0h 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.

  • Have flight prices from Ontario to Buffalo changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $310 to $2,912. That means the highest observed fare was about 9x higher than the lowest one.

  • 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 $187, which is 33% 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 41m, compared with 7h 06m via Chicago Midway (MDW) and 7h 20m via Chicago O'Hare Intl (ORD).

  • 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 starting from around $19 for economy cars. Top options include:
    • Dollar
    • Budget
    • Hertz
    • Alamo
    • Thrifty

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

    Round-trip flights from Ontario to Buffalo range from $416 to $576, with an average of $473 over the past 12 months. Anything below $416 counts as a good deal.

Your guide to booking Ontario to Buffalo flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Tuesday departure instead of Friday. On this route, Tuesday flights average $428 - about $463 less than Friday (52% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Buffalo trip for April. Fares historically average $406 round-trip in that month - typically $249 less than the most expensive month, which is May (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

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

Car rentals in Buffalo
Hotels in Buffalo
Vacations in Buffalo