Flight B61734
JetBlue Airways flight B61734
Looking for B61734 in the air…
Alerts at this flight's airports
San Francisco (SFO) to Boston (BOS)
Historically, this flight arrives 15+ minutes late 34% of the time, and when it is late the delay averages 65 minutes. It was cancelled 3.2% of the time.
- On-time arrivals
- 66.2%
- Less than 15 minutes late
- Cancelled
- 3.2%
- Of scheduled flights
- Average delay when late
- 65 min
- Flights arriving 15+ minutes late
- Flights tracked
- 342
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 62%
- Late-arriving aircraft 28%
- Airline (crew, maintenance, cleaning) 10%
- 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 | 63.3% | 30 |
| October 2025 | 48.4% | 31 |
| November 2025 | 76.0% | 29 |
| December 2025 | 83.9% | 31 |
| January 2026 | 79.3% | 31 |
| February 2026 | 88.0% | 28 |
| March 2026 | 67.7% | 31 |
| April 2026 | 53.6% | 28 |
| May 2026 | 36.4% | 11 |
| June 2026 | 60.0% | 30 |
| July 2026 | 64.5% | 31 |
| August 2026 | 58.6% | 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