AA3166

AA3166 (American Airlines) is a multi-stop service on 22 routes, busiest San Francisco to Philadelphia. Of 748 departures recorded from November 2024 to July 2026, 77.6% 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
January5629▼ 48.2%
February4016▼ 60.0%
March3151▲ 64.5%
April3060▲ 100.0%
May3150▲ 61.3%
June30300.0%
July31310.0%
August30––
September30––
October55–in progress
November30––
December44––
Year to date (Jan–Jul)249267▲ 7.2%

according to the US BTS · November 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
January91.1%76.9%▼ 15.5%
February92.5%86.7%▼ 6.3%
March90.0%82.4%▼ 8.5%
April93.3%70.0%▼ 25.0%
May73.3%66.0%▼ 10.0%
June92.9%53.6%▼ 42.3%
July67.9%36.7%▼ 46.0%
August80.0%––
September90.0%––
October81.1%–in progress
November80.0%––
December56.8%––
Year-to-date average (Jan–Jul)85.9%67.5%▼ 21.4%

according to the US BTS · November 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · November 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January03–
February01–
March10▼ 100.0%
April00–
May10▼ 100.0%
June220.0%
July31▼ 66.7%
August0––
September0––
October2–in progress
November0––
December0––
Year to date (Jan–Jul)770.0%

according to the US BTS · November 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 97.7% 731
  • Cancelled 2.3% 17

Share of all recorded flights in the period, all legs. · Nov 5, 2024 → Jul 31, 2026

On time, leg by leg

  1. SFO–PHL189 83.0%
  2. PHL–SFO71 45.6%
  3. MCI–CLT44 65.9%
  4. CLT–MCI44 75.0%
  5. STL–PHX37 89.2%
  6. PHX–STL37 94.6%
  7. SLC–CLT30 70.0%
  8. SFO–DFW30 93.3%

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

Legs flown under this number

11
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
November 2024 26 26 92.3% 0
December 2024 17 16 87.5% 1
January 2025 56 56 91.1% 0
February 2025 40 40 92.5% 0
March 2025 31 30 90.0% 1
April 2025 30 30 93.3% 0
May 2025 31 30 73.3% 1
June 2025 30 28 92.9% 2
July 2025 31 28 67.9% 3
August 2025 30 30 80.0% 0
September 2025 30 30 90.0% 0
October 2025 55 53 81.1% 2
November 2025 30 30 80.0% 0
December 2025 44 44 56.8% 0
January 2026 29 26 76.9% 3
February 2026 16 15 86.7% 1
March 2026 51 51 82.4% 0
April 2026 60 60 70.0% 0
May 2026 50 50 66.0% 0
June 2026 30 28 53.6% 2
July 2026 31 30 36.7% 1

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