AA1188

AA1188 (American Airlines) is a multi-stop service on 19 routes, busiest Boston to Los Angeles. Of 510 departures recorded from October 2024 to July 2026, 75.0% left on time, according to the US BTS.

Recorded departures by month

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

Months without data are left blank.

The most recent periods17 periods
PeriodDepartures 2025Departures 2026Change vs last year
January1126▲ 136.4%
February–15–
March–26–
April2330▲ 30.4%
May3029▼ 3.3%
June3028▼ 6.7%
July2930▲ 3.4%
August31––
September30––
October31–in progress
November29––
December10––

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

Months without data are left blank.

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

The most recent periods17 periods
PeriodOn time 2025On time 2026Change vs last year
January81.8%72.0%▼ 12.0%
February–93.3%–
March–64.0%–
April73.9%70.0%▼ 5.3%
May76.7%79.3%▲ 3.4%
June48.3%82.1%▲ 70.1%
July82.8%63.3%▼ 23.5%
August77.4%––
September83.3%––
October80.7%–in progress
November93.1%––
December60.0%––

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods17 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January01–
February–0–
March–1–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November0––
December0––

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 99.4% 507
  • Cancelled 0.6% 3

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026

On time, leg by leg

  1. BOS–LAX92 82.6%
  2. PHX–PHL65 73.9%
  3. LAX–CLT44 72.7%
  4. MIA–ORD37 77.8%
  5. SFO–ORD31 74.2%
  6. PHX–MIA30 93.3%
  7. CLT–CLE30 62.1%

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 17 17 76.5% 0
November 2024 23 23 73.9% 0
December 2024 32 32 68.8% 0
January 2025 11 11 81.8% 0
April 2025 23 23 73.9% 0
May 2025 30 30 76.7% 0
June 2025 30 29 48.3% 1
July 2025 29 29 82.8% 0
August 2025 31 31 77.4% 0
September 2025 30 30 83.3% 0
October 2025 31 31 80.7% 0
November 2025 29 29 93.1% 0
December 2025 10 10 60.0% 0
January 2026 26 25 72.0% 1
February 2026 15 15 93.3% 0
March 2026 26 25 64.0% 1
April 2026 30 30 70.0% 0
May 2026 29 29 79.3% 0
June 2026 28 28 82.1% 0
July 2026 30 30 63.3% 0

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