Route
BUF → SJU
Buffalo Niagara International Airport Luis Munoz Marin International Airport
1,845 miles
Return route SJU → BUF →
How punctual is this route?
- On-time arrivals
- 84.4%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 64 min
- Flights arriving 15+ minutes late
- Flights tracked
- 91
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 37%
- Late-arriving aircraft 34%
- Airline (crew, maintenance, cleaning) 30%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Mar 2026
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| March 2026 | 66.7% | 3 |
| April 2026 | 88.2% | 17 |
| May 2026 | 66.7% | 18 |
| June 2026 | 94.1% | 17 |
| July 2026 | 94.1% | 18 |
| August 2026 | 83.3% | 18 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| JetBlue Airways | 91 | 84.4% | 1.1% | 64 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
B6635
16% late · 91 flights
Reviews
No reviews yet. Be the first to review this route.