Is a 45 min layover in Buffalo long enough?

BUF · Buffalo Niagara International · Buffalo, United States
Probably Enough

Yes, 45 minutes is probably enough for a layover at BUF (Buffalo).

Ample time even allowing for a short walk and modest security line.
Concourses
1
Max Transit
10m
Avg. Security
10m
Primary Hub
Domestic → Domestic
35min
Domestic → International
45min
tight
International → Domestic
60min
International → International
60min
AD PLACEMENT — CONTEXTUAL
Gates are all within a few minutes' walk, so you rarely need to rush even with a short layover.
If arriving on a seasonal international flight (e.g., from Mexico or the Caribbean), budget extra time for the small federal inspection facility, which can back up during peak leisure season.
BUF has limited daily frequencies on many routes, so missing a connection can mean a multi-hour wait for rebooking.
Security lines are usually light outside of early morning and early evening banks, making short connections comfortable.
There are no interterminal trains or buses to worry about — the whole airport is one building.
12a6a12p6p12a
Low risk
Moderate
High risk
Tight connections are safer outside peak hours. Morning rush (6–9a), midday (11a–2p), and evening (4–8p) are highest risk.
BUF has one compact terminal with two concourses connected by a short indoor concourse walk, so there are no trains, buses, or shuttles required. International arrivals (mainly seasonal leisure routes) use a small federal inspection station near the gates, and passengers continuing onward simply proceed to their next gate after clearing customs.
Is 45 minutes enough for a layover at Buffalo Niagara International (BUF)?

Ample time even allowing for a short walk and modest security line.

What is the minimum connection time at BUF?

Minimum connection times at Buffalo Niagara International: Domestic-to-Domestic is 35 minutes, International-to-International is 60 minutes. These are the shortest layovers airlines will sell.

Can I make a 45 minutes connection at BUF on an international flight?

45 minutes is below the 60-minute international MCT at Buffalo Niagara International. You may need to rush and could miss your connection. BUF has one compact terminal with two concourses connected by a short indoor concourse walk, so there are no trains, buses, or shuttles required. International arrivals (mainly seasonal leisure routes) use a small federal inspection station near the gates, and passengers continuing onward simply proceed to their next gate after clearing customs.

How much time do I need for a layover at BUF?

We recommend at least 40 minutes for a comfortable connection at Buffalo Niagara International. This gives you enough buffer for security (typically 10 minutes) and transit between terminals (up to 10 minutes).

What happens if I miss my connection at BUF?

If you miss a connection at BUF, go directly to your airline's gate agent or service desk in the main terminal, as there is no separate rebooking hall; because BUF has limited daily flights, you may be rebooked on a later same-day or next-day departure.

AD PLACEMENT — BEFORE FOOTER