Airport reliability
Buffalo (BUF) on-time performance
How reliably flights leave Buffalo, NY (BUF) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Buffalo, NY20,707 departures in 12 months
- Departures on time
- 74.8% U.S. average 75.6%
- Cancelled
- 2.9% U.S. average 1.9%
- 60+ minutes late
- 8.6% U.S. average 8.1%
- Scheduled departures
- 20,707 12 months
What this means
BUF departures ran below the U.S. average.
- 74.8% of the 20,707 scheduled departures from Buffalo (BUF) arrived at their destination on time, 0.8 points lower than the U.S. average of 75.6%.
- 2.9% of departures were cancelled (U.S. average 1.9%), and 8.6% arrived an hour or more late.
- Flights arriving at BUF were on time 70.0% of the time.
- Among airlines with at least 300 departures, Delta Air Lines was the most punctual from BUF (80.5%) and PSA Airlines the least (60.5%).
- Over the last 3 years, October was the most reliable month for departures from BUF (85.4% on time) and January the least reliable (66.1%).
- Cancellations peaked in January, when 8.1% of flights were cancelled.
- Flights scheduled to depart before 6 am were the most punctual (86.5% on time); flights scheduled to depart 9 pm to 10 pm were the least (48.8%).
Airlines at BUF
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Delta Air Lines | 80.5% | 2.2% | 5.2% | 66 min | 1,791 |
| United Airlines | 78.2% | 0.8% | 7.7% | 80 min | 956 |
| Southwest Airlines | 77.9% | 1.1% | 5.7% | 53 min | 5,439 |
| American Airlines | 76.6% | 2.3% | 8.1% | 94 min | 2,258 |
| Republic AirwaysSold as American Eagle, Delta Connection, United Express | 76.5% | 4.4% | 8.2% | 82 min | 3,436 |
| SkyWest AirlinesSold as United Express, Delta Connection, American Eagle, Alaska | 72.6% | 3.0% | 12.5% | 115 min | 1,235 |
| JetBlue Airways | 70.7% | 4.6% | 11.1% | 83 min | 3,447 |
| Frontier Airlines | 66.9% | 2.2% | 13.3% | 87 min | 804 |
| Envoy AirSold as American Eagle | 65.3% | 4.2% | 12.4% | 73 min | 590 |
| PSA AirlinesSold as American Eagle | 60.5% | 6.1% | 17.3% | 136 min | 751 |
Tap a heading to sort.
On-time rate by departure hour
Share of scheduled flights on time BUF average 74.8%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing before 6 am | 86.5% | 944 |
| Departing 6 am to 7 am | 84.9% | 3,599 |
| Departing 7 am to 8 am | 84.9% | 1,652 |
| Departing 8 am to 9 am | 81.5% | 1,154 |
| Departing 9 am to 10 am | 83.1% | 777 |
| Departing 10 am to 11 am | 82.0% | 1,268 |
| Departing 11 am to noon | 79.5% | 1,250 |
| Departing noon to 1 pm | 74.1% | 1,780 |
| Departing 1 pm to 2 pm | 73.4% | 860 |
| Departing 2 pm to 3 pm | 67.8% | 603 |
| Departing 3 pm to 4 pm | 69.0% | 810 |
| Departing 4 pm to 5 pm | 63.3% | 1,215 |
| Departing 5 pm to 6 pm | 58.3% | 1,774 |
| Departing 6 pm to 7 pm | 62.6% | 1,051 |
| Departing 7 pm to 8 pm | 65.7% | 1,344 |
| Departing 8 pm to 9 pm | 56.4% | 450 |
| Departing 9 pm to 10 pm | 48.8% | 166 |
| Departing 10 pm to 11 pm | Insufficient sample | 10 |
Best and worst months at BUF
Share of scheduled flights on time 12-month average 74.8%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 66.1% | 4,329 |
| February | 76.7% | 4,349 |
| March | 78.1% | 5,230 |
| April | 84.2% | 5,207 |
| May | 80.8% | 5,713 |
| June | 75.6% | 5,552 |
| July | 69.5% | 5,939 |
| August | 73.7% | 5,820 |
| September | 83.2% | 5,541 |
| October | 85.4% | 5,864 |
| November | 84.4% | 5,282 |
| December | 72.6% | 4,966 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 85.3% | 1,682 |
| Oct 2025 | 81.7% | 1,870 |
| Nov 2025 | 76.0% | 1,742 |
| Dec 2025 | 61.6% | 1,649 |
| Jan 2026 | 66.5% | 1,354 |
| Feb 2026 | 73.3% | 1,388 |
| Mar 2026 | 71.9% | 1,704 |
| Apr 2026 | 81.8% | 1,699 |
| May 2026 | 81.8% | 1,936 |
| Jun 2026 | 76.9% | 1,865 |
| Jul 2026 | 67.9% | 1,951 |
| Aug 2026 | 70.6% | 1,867 |
Busiest routes from BUF
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Chicago (ORD) | 72.0% | 3.1% | 5 | 2,205 |
| Orlando (MCO) | 73.7% | 1.8% | 3 | 1,813 |
| Baltimore (BWI) | 85.4% | 1.5% | 1 | 1,728 |
| New York (LGA) | 72.8% | 5.3% | 2 | 1,660 |
| Atlanta (ATL) | 78.5% | 2.0% | 3 | 1,533 |
| Boston (BOS) | 73.1% | 3.5% | 3 | 1,349 |
| Detroit (DTW) | 80.1% | 1.9% | 3 | 1,294 |
| New York (JFK) | 70.1% | 6.6% | 1 | 1,225 |
| Charlotte (CLT) | 77.9% | 1.6% | 2 | 1,164 |
| Washington (DCA) | 61.9% | 5.4% | 4 | 1,108 |
| Chicago (MDW) | 73.7% | 1.6% | 1 | 829 |
| Tampa (TPA) | 79.2% | 0.6% | 2 | 712 |
| Denver (DEN) | 73.5% | 0.2% | 3 | 573 |
| Dallas/Fort Worth (DFW) | 72.9% | 2.8% | 1 | 573 |
| Fort Lauderdale (FLL) | 70.8% | 3.0% | 2 | 534 |
| Newark (EWR) | 82.7% | 5.8% | 2 | 485 |
| Nashville (BNA) | 76.2% | 0.8% | 1 | 370 |
| Las Vegas (LAS) | 80.4% | 0.7% | 1 | 291 |
| Philadelphia (PHL) | 78.6% | 3.6% | 3 | 252 |
| Phoenix (PHX) | 77.5% | 0.6% | 1 | 178 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from Buffalo, NY (BUF) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.