DTW → BOS

DL1163

DL1163 (Delta Air Lines) flies Detroit to Boston. Of 655 departures recorded from October 2024 to July 2026, 91.0% left on time, according to the US BTS.

Recorded departures by month

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January31310.0%
February28280.0%
March31310.0%
April2830▲ 7.1%
May31310.0%
June30300.0%
July31310.0%
August31––
September30––
October31–in progress
November30––
December31––
Year to date (Jan–Jul)210212▲ 1.0%

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
January100.0%78.6%▼ 21.4%
February78.6%88.5%▲ 12.6%
March87.1%93.6%▲ 7.4%
April92.9%93.3%▲ 0.5%
May93.6%100.0%▲ 6.9%
June89.7%96.7%▲ 7.8%
July83.9%93.1%▲ 11.0%
August90.3%––
September96.7%––
October93.6%–in progress
November86.2%––
December87.1%––
Year-to-date average (Jan–Jul)89.4%92.0%▲ 2.9%

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
January03–
February02–
March00–
April00–
May00–
June10▼ 100.0%
July02–
August0––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)17▲ 600.0%

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 98.6% 646
  • Cancelled 1.4% 9

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
DTW BOS Detroit Metropolitan Wayne County Airport – Boston Logan International Airport 1,015 0.5 min 91.0% 655
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 95.0% 0
November 2024 29 29 86.2% 0
December 2024 31 31 96.8% 0
January 2025 31 31 100.0% 0
February 2025 28 28 78.6% 0
March 2025 31 31 87.1% 0
April 2025 28 28 92.9% 0
May 2025 31 31 93.6% 0
June 2025 30 29 89.7% 1
July 2025 31 31 83.9% 0
August 2025 31 31 90.3% 0
September 2025 30 30 96.7% 0
October 2025 31 31 93.6% 0
November 2025 30 29 86.2% 1
December 2025 31 31 87.1% 0
January 2026 31 28 78.6% 3
February 2026 28 26 88.5% 2
March 2026 31 31 93.6% 0
April 2026 30 30 93.3% 0
May 2026 31 31 100.0% 0
June 2026 30 30 96.7% 0
July 2026 31 29 93.1% 2

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