Buffalo

BUF · KBUF

Buffalo Niagara International Airport

42.94°, -78.73°NY, United States

Passengers a year

5M

#64 busiest in the U.S.

29

nonstop destinations

36

airlines

71

departures a day

73.1%

arrivals on time

2.6%

flights cancelled

81.1%

load factor

The ten busiest routes from BUF, by passengers: MCO, ATL, JFK, BWI, ORD, CLT, LGA, DTW, MDW, BOSBUFBOSLGAJFKBWIMCOCLTATLDTWMDWORD
Nonstop routes — the ten busiest. Filed traffic, June 2025 – May 2026.

Airlines

Southwest Airlines is the largest carrier at Buffalo, with 29% of all passengers. 36 airlines fly from here.

Share of passengers · each carrier as a slice of the whole airport

Southwest Airlines holds 29% of the airport — the 24th most concentrated of 35 medium hubs. The nearest comparison is IND at 29%.

AirlineSharePassengersSeats YoY
WN
Southwest80% full
28.7%1.4M+3.9%
AA
American82% fullAmerican Eagle · operated by Republic, PSA, Piedmont, Envoy, SkyWest
21.0%1M+2.9%
DL
Delta82% fullDelta Connection · operated by Endeavor, Republic, SkyWest
18.6%930.5K+3.1%
B6
JetBlue83% full
15.7%786.3K-1.4%
UA
United83% fullUnited Express · operated by GoJet, CommuteAir, Republic, SkyWest, Mesa
10.1%507.8K+11%
+Other airlines
5.9%295.6K—

Share, passengers and destinations count each airline’s own flights plus the regional flying sold under its brand. On-time covers the airline's own aircraft only — regional affiliates report to the government separately. Seats year on year compares the latest twelve months against the twelve before them.

Destinations

29 nonstop destinations from Buffalo, all domestic.

100% domestic · 0% international · by departing passengers

Top domestic destinations

  • Orlando (MCO)

    258.9K departing · 86% full

    Southwest Airlines · JetBlue Airways · Frontier Airlines

  • Atlanta (ATL)

    219.9K departing · 82% full

    Delta Air Lines · Frontier Airlines

  • New York (JFK)

    218.8K departing · 81% full

    JetBlue Airways · Delta Air Lines

  • Baltimore (BWI)

    208.5K departing · 77% full

    Southwest Airlines

  • Chicago (ORD)

    196.2K departing · 78% full

    United Airlines · American Airlines

  • Charlotte (CLT)

    164.5K departing · 82% full

    American Airlines

  • New York (LGA)

    130.2K departing · 83% full

    Delta Air Lines · American Airlines

  • Detroit (DTW)

    109.7K departing · 81% full

    Delta Air Lines

  • Chicago (MDW)

    101.9K departing · 78% full

    Southwest Airlines

  • Boston (BOS)

    100.9K departing · 73% full

    JetBlue Airways · American Airlines

All nonstop destinations

29 nonstop · 7 airlines · 29 domestic / 0 intl

Aircraft

By share of departures at Buffalo.

Body class · share of departures

When Buffalo is busiest

Departures by month over the trailing year. Bars scale to the busiest month.

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Departures a month · peak August 2025

Annual passengers since 1990

Total passengers, arriving and departing, in every year on record.

Passengers a year

Every year
1990
3,522,400
1991
3,207,250
1992
3,129,402
1993
2,837,058
1994
3,223,061
1995
2,708,724
1996
2,616,594
1997
2,686,792
1998
2,935,560
1999
3,140,121
2000
3,822,326
2001
3,972,274
2002
3,746,271
2003
4,068,482
2004
4,408,646
2005
4,869,642
2006
5,041,667
2007
5,342,857
2008
5,497,160
2009
5,322,458
2010
5,199,565
2011
5,161,091
2012
5,200,681
2013
5,152,552
2014
4,765,292
2015
4,692,688
2016
4,647,571
2017
4,718,201
2018
5,068,903
2019
4,942,772
2020
1,438,388
2021
2,909,308
2022
4,044,849
2023
4,605,938
2024
5,017,111
2025
5,067,908
2026
1,844,495 so far

Arriving on time

Of every 100 flights landing at Buffalo, 73 touch down within 15 minutes of schedule, 24 arrive late, and 3 are cancelled.

See live FAA delays

Every 100 arrivals

On time 73Late 24Cancelled 3

20 min

average delay

549

flights cancelled

20.2K

arrivals measured

What holds flights up

Share of delay minutes

Most reliable here

Delta Air Lines 80.7%

Least reliable here

PSA Airlines 64.5%

Among US airports

#64

On time, month by month

Darker is better · 64.2%–82.3%

The weak spot is December 2025, when 64.2% of arrivals landed on time — 8.9 points below the year. The strongest was September 2025 at 82.3%.

Frequently asked

How busy is Buffalo Niagara International Airport (BUF)?

Buffalo Niagara International Airport handled about 5M passengers over the trailing 12 months, ranking #64 among U.S. airports by passengers, with roughly 71 departures a day.

Which airline is the largest at Buffalo Niagara International Airport (BUF)?

Southwest Airlines is the largest carrier at Buffalo (BUF), flying about 29% of its passengers. 36 airlines serve Buffalo in total.

How many places can you fly nonstop from Buffalo Niagara International Airport (BUF)?

Buffalo (BUF) has 29 nonstop destinations, all domestic.

How often do flights arrive on time at Buffalo Niagara International Airport (BUF)?

About 73.1% of flights arriving at Buffalo (BUF) touch down within 15 minutes of schedule, per US DOT figures. About 2.6% are cancelled.

What aircraft flies most from Buffalo Niagara International Airport (BUF)?

The Embraer E175 flew the largest share of departures from Buffalo (BUF), about 15% of the total.

Departing counts passengers leaving Buffalo. Data: traffic June 2025 – May 2026, on-time July 2025 – June 2026. Source: US DOT Bureau of Transportation Statistics (T-100 Segment, On-Time Performance).