JFK → MIA

DL1428

DL1428 (Delta Air Lines) flies New York to Miami. Of 607 departures recorded from October 2024 to July 2026, 66.0% left on time, according to the US BTS.

Recorded departures by month

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January2324▲ 4.3%
February2024▲ 20.0%
March2631▲ 19.2%
April2830▲ 7.1%
May31310.0%
June30300.0%
July31310.0%
August31––
September30––
October31–in progress
November28––
December31––
Year to date (Jan–Jul)189201▲ 6.3%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

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

The most recent periods19 periods
PeriodOn time 2025On time 2026Change vs last year
January56.5%73.9%▲ 30.8%
February65.0%47.6%▼ 26.7%
March57.7%73.3%▲ 27.1%
April85.7%86.7%▲ 1.1%
May61.3%87.1%▲ 42.1%
June39.3%80.0%▲ 103.6%
July42.3%55.2%▲ 30.4%
August58.1%––
September73.3%––
October72.4%–in progress
November74.1%––
December62.1%––
Year-to-date average (Jan–Jul)58.3%72.0%▲ 23.5%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January01–
February03–
March01–
April00–
May00–
June20▼ 100.0%
July52▼ 60.0%
August0––
September0––
October2–in progress
November1––
December2––
Year to date (Jan–Jul)770.0%

according to the US BTS · October 2024 → July 2026

This is not a forecast

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

Cancellation share

  • Not cancelled 96.9% 588
  • Cancelled 3.1% 19

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026

Legs flown under this number

1
RoutesDistance (km)Avg delay On timeDepartures
JFK MIA John F. Kennedy International Airport – Miami International Airport 1,757 30.6 min 66.0% 607
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 65.0% 0
November 2024 23 23 73.9% 0
December 2024 23 23 47.8% 0
January 2025 23 23 56.5% 0
February 2025 20 20 65.0% 0
March 2025 26 26 57.7% 0
April 2025 28 28 85.7% 0
May 2025 31 31 61.3% 0
June 2025 30 28 39.3% 2
July 2025 31 26 42.3% 5
August 2025 31 31 58.1% 0
September 2025 30 30 73.3% 0
October 2025 31 29 72.4% 2
November 2025 28 27 74.1% 1
December 2025 31 29 62.1% 2
January 2026 24 23 73.9% 1
February 2026 24 21 47.6% 3
March 2026 31 30 73.3% 1
April 2026 30 30 86.7% 0
May 2026 31 31 87.1% 0
June 2026 30 30 80.0% 0
July 2026 31 29 55.2% 2

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