Flight B6403
JetBlue Airways flight B6403
Looking for B6403 in the air…
New York (JFK) to San Juan (SJU)
Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 66 minutes. It was cancelled 3.4% of the time.
- On-time arrivals
- 75.8%
- Less than 15 minutes late
- Cancelled
- 3.4%
- Of scheduled flights
- Average delay when late
- 66 min
- Flights arriving 15+ minutes late
- Flights tracked
- 235
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 40%
- Late-arriving aircraft 37%
- Air traffic control & airport 23%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 100.0% | 2 |
| October 2025 | 50.0% | 6 |
| November 2025 | 79.3% | 29 |
| December 2025 | 63.3% | 31 |
| January 2026 | 0.0% | 5 |
| February 2026 | 60.0% | 17 |
| March 2026 | 73.3% | 30 |
| April 2026 | 84.6% | 13 |
| May 2026 | 100.0% | 11 |
| June 2026 | 85.7% | 29 |
| July 2026 | 67.7% | 31 |
| August 2026 | 93.1% | 31 |
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