What is the cheapest month to fly from Ottawa to Buffalo?

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Ottawa (YOW) to Buffalo (BUF), with fares starting from $346.

What is the lowest current fare from YOW to BUF?

The lowest currently-listed fare from Ottawa (YOW) to Buffalo (BUF) is $346 on 2026-05-29.

Is there a direct flight from Ottawa to Buffalo?

There is currently no non-stop service from YOW to BUF. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Ottawa to Buffalo

Cheapest current fares: $346 in May 2026 on connecting flights.

Last updated May 25, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Ottawa (YOW) to Buffalo (BUF). Refreshed daily.

Ottawa (YOW) → Buffalo (BUF)

May 2026 $346
June 2026 $400

Frequently asked questions

What is the cheapest month to fly from Ottawa to Buffalo?

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Ottawa (YOW) to Buffalo (BUF), with fares starting from $346.
What is the lowest current fare from YOW to BUF?

The lowest currently-listed fare from Ottawa (YOW) to Buffalo (BUF) is $346 on 2026-05-29.
Is there a direct flight from Ottawa to Buffalo?

There is currently no non-stop service from YOW to BUF. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.