DL1909

DL1909 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Detroit to Portland. Of 370 departures recorded from June 2025 to December 2025, 78.4% left on time, according to the US BTS.

Recorded departures by month

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

The most recent periods7 periods
PeriodDepartures 2024Departures 2025Change vs last year
January–––
February–––
March–––
April–––
May–––
June–42–
July–52–
August–60–
September–60–
October–60–
November–58–
December–38–

according to the US BTS · June 2025 → December 2025

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 periods7 periods
PeriodOn time 2024On time 2025Change vs last year
January–––
February–––
March–––
April–––
May–––
June–75.0%–
July–73.1%–
August–76.7%–
September–81.7%–
October–90.0%–
November–75.0%–
December–73.7%–

according to the US BTS · June 2025 → December 2025

Average departure delay by month

All legs combined

according to the US BTS · June 2025 → December 2025

Cancelled departures by month

All legs combined
The most recent periods7 periods
PeriodCancelled 2024Cancelled 2025Change vs last year
January–––
February–––
March–––
April–––
May–––
June–2–
July–0–
August–0–
September–0–
October–0–
November–2–
December–0–

according to the US BTS · June 2025 → December 2025

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 98.9% 366
  • Cancelled 1.1% 4

Share of all recorded flights in the period, all legs. · Jun 8, 2025 → Dec 19, 2025

On time, leg by leg

  1. PWM–DTW185 74.9%
  2. DTW–PWM185 82.0%

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

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
PWM DTW Portland International Jetport – Detroit Metropolitan Wayne County Airport 1,073 13.5 min 74.9% 185
DTW PWM Detroit Metropolitan Wayne County Airport – Portland International Jetport 1,073 5.6 min 82.0% 185
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
June 2025 42 40 75.0% 2
July 2025 52 52 73.1% 0
August 2025 60 60 76.7% 0
September 2025 60 60 81.7% 0
October 2025 60 60 90.0% 0
November 2025 58 56 75.0% 2
December 2025 38 38 73.7% 0

How to read this chart

Loading the guide…