AA1438

AA1438 (American Airlines) is a multi-stop service on 10 routes, busiest Boston to Dallas-Fort Worth. Of 967 departures recorded from October 2024 to July 2026, 74.0% 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
January3142▲ 35.5%
February2842▲ 50.0%
March3160▲ 93.5%
April4436▼ 18.2%
May3342▲ 27.3%
June5660▲ 7.1%
July6256▼ 9.7%
August61––
September59––
October33–in progress
November57––
December62––
Year to date (Jan–Jul)285338▲ 18.6%

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
January75.9%86.5%▲ 14.0%
February85.7%73.7%▼ 14.0%
March70.0%75.9%▲ 8.4%
April93.0%86.1%▼ 7.4%
May87.5%82.5%▼ 5.7%
June80.4%50.9%▼ 36.6%
July80.7%51.8%▼ 35.8%
August60.7%––
September69.5%––
October63.6%–in progress
November79.0%––
December62.9%––
Year-to-date average (Jan–Jul)81.9%72.5%▼ 11.5%

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
January25▲ 150.0%
February04–
March12▲ 100.0%
April10▼ 100.0%
May12▲ 100.0%
June05–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)518▲ 260.0%

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.

This number flies several legs

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

Cancellation share

  • Not cancelled 97.3% 941
  • Cancelled 2.7% 26

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

On time, leg by leg

  1. BOS–DFW269 71.4%
  2. DFW–BOS238 84.4%
  3. ROC–CLT136 76.2%
  4. CLT–ROC131 73.8%
  5. DFW–BDL69 56.1%
  6. BDL–DFW69 55.4%

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

Legs flown under this number

6
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 90.0% 0
November 2024 23 23 87.0% 0
December 2024 29 26 76.9% 3
January 2025 31 29 75.9% 2
February 2025 28 28 85.7% 0
March 2025 31 30 70.0% 1
April 2025 44 43 93.0% 1
May 2025 33 32 87.5% 1
June 2025 56 56 80.4% 0
July 2025 62 62 80.7% 0
August 2025 61 61 60.7% 0
September 2025 59 59 69.5% 0
October 2025 33 33 63.6% 0
November 2025 57 57 79.0% 0
December 2025 62 62 62.9% 0
January 2026 42 37 86.5% 5
February 2026 42 38 73.7% 4
March 2026 60 58 75.9% 2
April 2026 36 36 86.1% 0
May 2026 42 40 82.5% 2
June 2026 60 55 50.9% 5
July 2026 56 56 51.8% 0

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