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Flight Deals from Ottawa to Buffalo from $332

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Bundle + Save

Top flight deals from leading airlines:

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Stops

  • Up to 1 stop
    $575
  • Up to 2 stops
    $585

Airlines

  • Air Canada
    $611
  • United Airlines
    $575

Cabin Class

  • Economy
    $575

Departure Airports

  • Ottawa Macdonald-Cartier International Airport
    $575

Arrival Airports

  • Buffalo Niagara International Airport
    $575

Layover Airports

  • Chicago O Hare Airport
    $599
  • Newark Liberty Airport
    $575
  • Toronto Pearson Airport
    $587
  • Washington Dulles Airport
    $575

Best Price. GUARANTEED.

Exclusively for Priceline Members
Tired of searching? Book now!
We'll refund the difference if you find a lower price.

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On average save $240 per traveler
United Airlines Logo
United Airlines

09/16/25

YOW
8h 49m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
15h 35m
EWR

09/23/25

YOW
$575
United Airlines Logo
United Airlines

09/16/25

YOW
8h 49m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
11h 29m
EWR

09/23/25

YOW
$575
United Airlines Logo
United Airlines

09/16/25

YOW
8h 49m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
10h 13m
EWR

09/23/25

YOW
$575
United Airlines Logo
United Airlines

09/16/25

YOW
11h 4m
EWR
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
10h 13m
EWR

09/23/25

YOW
$585
United Airlines Logo
United Airlines

09/16/25

YOW
8h 49m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
10h 34m
EWR
YYZ

09/23/25

YOW
$587
United Airlines Logo
United Airlines

09/16/25

YOW
6h 15m
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
10h 13m
EWR

09/23/25

YOW
$599
United Airlines Logo
United Airlines

09/16/25

YOW
6h 49m
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
11h 29m
EWR

09/23/25

YOW
$599
United Airlines Logo
United Airlines

09/16/25

YOW
4h 16m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
11h 29m
EWR

09/23/25

YOW
$599
United Airlines Logo
United Airlines

09/16/25

YOW
4h 16m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
11h 29m
EWR

09/23/25

YOW
$599
United Airlines Logo
United Airlines

09/16/25

YOW
6h 15m
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
11h 29m
EWR

09/23/25

YOW
$599
United Airlines Logo
United Airlines

09/16/25

YOW
4h 5m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
10h 13m
EWR

09/23/25

YOW
$599
United Airlines Logo
United Airlines

09/16/25

YOW
4h 5m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
11h 29m
EWR

09/23/25

YOW
$599
United Airlines Logo
United Airlines

09/16/25

YOW
4h 16m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
10h 13m
EWR

09/23/25

YOW
$599
United Airlines Logo
United Airlines

09/16/25

YOW
6h 49m
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
10h 13m
EWR

09/23/25

YOW
$599
United Airlines Logo
United Airlines

09/16/25

YOW
4h 16m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
10h 13m
EWR

09/23/25

YOW
$599
United Airlines Logo
United Airlines

09/16/25

YOW
6h 49m
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
4h 2m
IAD

09/23/25

YOW
$610
United Airlines Logo
United Airlines

09/16/25

YOW
4h 5m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
6h 11m
ORD

09/23/25

YOW
$610
United Airlines Logo
United Airlines

09/16/25

YOW
6h 15m
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
4h 2m
IAD

09/23/25

YOW
$610
United Airlines Logo
United Airlines

09/16/25

YOW
4h 16m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
6h 11m
ORD

09/23/25

YOW
$610
United Airlines Logo
United Airlines

09/16/25

YOW
4h 16m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
6h 11m
ORD

09/23/25

YOW
$610
United Airlines Logo
United Airlines

09/16/25

YOW
6h 15m
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
3h 35m
IAD

09/23/25

YOW
$610
United Airlines Logo
United Airlines

09/16/25

YOW
4h 5m
IAD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
7h 38m
ORD

09/23/25

YOW
$610
United Airlines Logo
United Airlines

09/16/25

YOW
6h 49m
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
3h 35m
IAD

09/23/25

YOW
$610
Air Canada Logo
Air Canada

09/16/25

YOW
6h 52m
YYZ
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
11h 29m
EWR

09/23/25

YOW
$611
Air Canada Logo
Air Canada

09/16/25

YOW
8h 17m
YYZ
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
11h 29m
EWR

09/23/25

YOW
$611
Air Canada Logo
Air Canada

09/16/25

YOW
6h 52m
YYZ
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
10h 13m
EWR

09/23/25

YOW
$611
Air Canada Logo
Air Canada

09/16/25

YOW
6h 52m
YYZ
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
15h 35m
EWR

09/23/25

YOW
$611
Air Canada Logo
Air Canada

09/16/25

YOW
8h 17m
YYZ
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
10h 13m
EWR

09/23/25

YOW
$611
Air Canada Logo
Air Canada

09/16/25

YOW
8h 17m
YYZ
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
15h 35m
EWR

09/23/25

YOW
$611
Air Canada Logo
Air Canada

09/16/25

YOW
8h 17m
YYZ
ORD

09/16/25

BUF
United Airlines Logo
United Airlines

09/23/25

BUF
10h 34m
EWR
YYZ

09/23/25

YOW
$622

Top Deals on flights from Ottawa to Buffalo

Ottawa, CA (YOW) - Buffalo, US (BUF)

United Airlines Logo
United Airlines

Sep 16

YOW
4h 16m
IAD

Sep 16

BUF

as low as

$332

Ottawa, CA (YOW) - Buffalo, US (BUF)

United Airlines Logo
United Airlines

Sep 16

YOW
6h 15m
ORD

Sep 16

BUF

as low as

$332

Ottawa, CA (YOW) - Buffalo, US (BUF)

United Airlines Logo
United Airlines

Sep 16

YOW
10h 19m
ORD

Sep 16

BUF

as low as

$332

Ottawa, CA (YOW) - Buffalo, US (BUF)

 Logo

Sep 16

YOW
16h 50m
BOS

Sep 17

BUF

as low as

$332

Ottawa, CA (YOW) - Buffalo, US (BUF)

United Airlines Logo
United Airlines

Sep 16

YOW
6h 49m
ORD

Sep 16

BUF

as low as

$332

Ottawa, CA (YOW) - Buffalo, US (BUF)

United Airlines Logo
United Airlines

Sep 16

YOW
3h 56m
EWR

Sep 16

BUF

as low as

$332

Ottawa, CA (YOW) - Buffalo, US (BUF)

United Airlines Logo
United Airlines

Sep 16

YOW
4h 16m
IAD

Sep 16

BUF

as low as

$332

Ottawa, CA (YOW) - Buffalo, US (BUF)

 Logo

Sep 16

YOW
24h 15m
BOS

Sep 17

BUF

as low as

$332

Ottawa, CA (YOW) - Buffalo, US (BUF)

United Airlines Logo
United Airlines

Sep 16

YOW
8h 49m
IAD

Sep 16

BUF

as low as

$332

Ottawa, CA (YOW) - Buffalo, US (BUF)

United Airlines Logo
United Airlines

Sep 16

YOW
6h 52m
EWR

Sep 16

BUF

as low as

$332

Ottawa, CA (YOW) - Buffalo, US (BUF)

Air Canada Logo
Air Canada

Sep 16

YOW
6h 15m
ORD

Sep 16

BUF

as low as

$360

Ottawa, CA (YOW) - Buffalo, US (BUF)

Air Canada Logo
Air Canada

Sep 16

YOW
10h 19m
ORD

Sep 16

BUF

as low as

$360

Frequently Asked Questions

Are there convenient layover flights from Ottawa to Buffalo?
Convenient 1 stop flights are available with United Airlines at $575 (8h 49m via Washington Dulles) and Air Canada at $625 (6h 49m via Chicago O Hare). If considering 2 stop options, United Airlines offers a flight at $585 (11h 4m via Newark and Washington) and Air Canada at $611 (6h 52m via Toronto and Chicago).
What are the most convenient layover airports for my flight from Ottawa to Buffalo?
Consider these convenient layover airports: Washington Dulles Airport (United), Newark Liberty Airport (Air Canada), Chicago O'Hare Airport (Air Canada), Toronto Pearson Airport (Air Canada), and Chicago O'Hare Airport (United).
What is the cheapest and fastest flight from Ottawa to Buffalo?
The cheapest flight is with United Airlines for $575, taking 8 hours 49 minutes. The fastest flight is with Air Canada for $664, taking 3 hours 56 minutes.
What are all possible destination arrival airports?
The possible destination arrival airport for your flight is Buffalo Niagara International Airport.
What is the time difference between destination and arrival?
The time difference between Ottawa and Buffalo is typically zero hours, as both cities are in the same time zone (Eastern Time).
Is there a direct flight from Ottawa to Buffalo?
There is no direct flight from Ottawa to Buffalo. The cheapest option is a 1 stop flight with United Airlines for $575, and the fastest is a 1 stop flight with Air Canada for $664.