DL691

DL691 (Delta Air Lines) is a multi-stop service on 10 routes, busiest Atlanta to Portland. Of 663 departures recorded from October 2024 to July 2026, 81.7% 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 periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January30300.0%
February2827▼ 3.6%
March3110▼ 67.7%
April3018▼ 40.0%
May3156▲ 80.6%
June3036▲ 20.0%
July5631▼ 44.6%
August39––
September30––
October31–in progress
November30––
December28––
Year to date (Jan–Jul)236208▼ 11.9%

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
January82.8%82.8%0.0%
February82.1%92.6%▲ 12.7%
March87.1%100.0%▲ 14.8%
April83.3%88.9%▲ 6.7%
May93.6%78.6%▼ 16.0%
June66.7%55.6%▼ 16.7%
July79.6%34.5%▼ 56.7%
August82.1%––
September80.0%––
October93.6%–in progress
November100.0%––
December85.7%––
Year-to-date average (Jan–Jul)82.2%76.1%▼ 7.4%

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
January110.0%
February00–
March01–
April00–
May00–
June00–
July220.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)34▲ 33.3%

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.

This number flies several legs

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

Cancellation share

  • Not cancelled 98.9% 656
  • Cancelled 1.1% 7

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

On time, leg by leg

  1. ATL–PDX242 82.1%
  2. JAC–SLC130 90.0%
  3. SFO–JFK79 53.3%
  4. RDU–ATL56 92.6%
  5. PDX–ATL35 79.4%
  6. SNA–SEA31 74.2%
  7. SEA–SNA31 83.9%

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

Legs flown under this number

7
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 90.0% 0
November 2024 21 21 100.0% 0
December 2024 20 20 95.0% 0
January 2025 30 29 82.8% 1
February 2025 28 28 82.1% 0
March 2025 31 31 87.1% 0
April 2025 30 30 83.3% 0
May 2025 31 31 93.6% 0
June 2025 30 30 66.7% 0
July 2025 56 54 79.6% 2
August 2025 39 39 82.1% 0
September 2025 30 30 80.0% 0
October 2025 31 31 93.6% 0
November 2025 30 30 100.0% 0
December 2025 28 28 85.7% 0
January 2026 30 29 82.8% 1
February 2026 27 27 92.6% 0
March 2026 10 9 100.0% 1
April 2026 18 18 88.9% 0
May 2026 56 56 78.6% 0
June 2026 36 36 55.6% 0
July 2026 31 29 34.5% 2

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