B6859

B6859 (JetBlue Airways) is a multi-stop service on 3 routes, busiest Boston to Philadelphia. Of 160 departures recorded from October 2024 to May 2026, 75.5% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

Months without data are left blank.

The most recent periods8 periods
PeriodDepartures 2025Departures 2026Change vs last year
January25▲ 150.0%
February–––
March–20–
April–30–
May–20–
June–––
July–––
August–––
September–––
October6–in progress
November27––
December29––

according to the US BTS · October 2024 → May 2026

On-time departures by month

All legs combined

Months without data are left blank.

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods8 periods
PeriodOn time 2025On time 2026Change vs last year
January50.0%20.0%▼ 60.0%
February–––
March–60.0%–
April–76.7%–
May–70.0%–
June–––
July–––
August–––
September–––
October83.3%–in progress
November88.9%––
December82.1%––

according to the US BTS · October 2024 → May 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → May 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods8 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February–––
March–0–
April–0–
May–0–
June–––
July–––
August–––
September–––
October0–in progress
November0––
December1––

according to the US BTS · October 2024 → May 2026

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 99.4% 159
  • Cancelled 0.6% 1

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 20, 2026

On time, leg by leg

  1. BOS–PHL111 70.9%
  2. FLL–PHX41 95.1%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

2
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 15 15 100.0% 0
December 2024 6 6 33.3% 0
January 2025 2 2 50.0% 0
October 2025 6 6 83.3% 0
November 2025 27 27 88.9% 0
December 2025 29 28 82.1% 1
January 2026 5 5 20.0% 0
March 2026 20 20 60.0% 0
April 2026 30 30 76.7% 0
May 2026 20 20 70.0% 0

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