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Flight AA1421

American Airlines flight AA1421

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Looking for AA1421 in the airโ€ฆ

Chicago (ORD) to New York (JFK)

Historically, this flight arrives 15+ minutes late 42% of the time, and when it is late the delay averages 103 minutes. It was cancelled 11.8% of the time.

On-time arrivals
57.6%
Less than 15 minutes late
Cancelled
11.8%
Of scheduled flights
Average delay when late
103 min
Flights arriving 15+ minutes late
Flights tracked
76
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 47%
  • Late-arriving aircraft 37%
  • Airline (crew, maintenance, cleaning) 15%
  • Extreme weather 1%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Boston (BOS) to Washington (DCA)

Historically, this flight arrives 15+ minutes late 62% of the time, and when it is late the delay averages 111 minutes. It was cancelled 6.5% of the time.

On-time arrivals
37.9%
Less than 15 minutes late
Cancelled
6.5%
Of scheduled flights
Average delay when late
111 min
Flights arriving 15+ minutes late
Flights tracked
62
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 69%
  • Airline (crew, maintenance, cleaning) 24%
  • Air traffic control & airport 7%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Milwaukee (MKE) to Dallas-Fort Worth (DFW)

Historically, this flight arrives 15+ minutes late 16% of the time, and when it is late the delay averages 174 minutes. It was cancelled 2.3% of the time.

On-time arrivals
83.7%
Less than 15 minutes late
Cancelled
2.3%
Of scheduled flights
Average delay when late
174 min
Flights arriving 15+ minutes late
Flights tracked
44
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 80%
  • Air traffic control & airport 13%
  • Late-arriving aircraft 7%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Miami (MIA) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 67 minutes. It was cancelled 8.1% of the time.

On-time arrivals
73.5%
Less than 15 minutes late
Cancelled
8.1%
Of scheduled flights
Average delay when late
67 min
Flights arriving 15+ minutes late
Flights tracked
37
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 58%
  • Air traffic control & airport 27%
  • Airline (crew, maintenance, cleaning) 14%
  • Security 0%
  • Extreme weather 0%

Share of delay minutes airlines attributed to each cause (BTS).

Washington (DCA) to Boston (BOS)

Historically, this flight arrives 15+ minutes late 58% of the time, and when it is late the delay averages 79 minutes. It was cancelled 5.7% of the time.

On-time arrivals
42.4%
Less than 15 minutes late
Cancelled
5.7%
Of scheduled flights
Average delay when late
79 min
Flights arriving 15+ minutes late
Flights tracked
35
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 48%
  • Late-arriving aircraft 25%
  • Extreme weather 23%
  • Airline (crew, maintenance, cleaning) 4%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Phoenix (PHX) to Austin (AUS)

Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 59 minutes. It was cancelled 0.0% of the time.

On-time arrivals
77.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
59 min
Flights arriving 15+ minutes late
Flights tracked
31
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 52%
  • Air traffic control & airport 27%
  • Airline (crew, maintenance, cleaning) 20%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Atlanta (ATL) to Miami (MIA)

Historically, this flight arrives 15+ minutes late 7% of the time, and when it is late the delay averages 114 minutes. It was cancelled 3.3% of the time.

On-time arrivals
93.1%
Less than 15 minutes late
Cancelled
3.3%
Of scheduled flights
Average delay when late
114 min
Flights arriving 15+ minutes late
Flights tracked
30
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 91%
  • Air traffic control & airport 9%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Washington (DCA) to Dallas-Fort Worth (DFW)

Historically, this flight arrives 15+ minutes late 33% of the time, and when it is late the delay averages 45 minutes. It was cancelled 0.0% of the time.

On-time arrivals
66.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
45 min
Flights arriving 15+ minutes late
Flights tracked
27
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 43%
  • Air traffic control & airport 37%
  • Airline (crew, maintenance, cleaning) 20%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Charlotte (CLT) to Miami (MIA)

Historically, this flight arrives 15+ minutes late 29% of the time, and when it is late the delay averages 87 minutes. It was cancelled 0.0% of the time.

On-time arrivals
70.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
87 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 80%
  • Airline (crew, maintenance, cleaning) 18%
  • Air traffic control & airport 2%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Charlotte (CLT) to Washington (DCA)

Only 15 flights on record, which is too few for reliable odds.

On-time arrivals
80.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
37 min
Flights arriving 15+ minutes late
Flights tracked
15
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 61%
  • Airline (crew, maintenance, cleaning) 22%
  • Security 10%
  • Air traffic control & airport 8%
  • Extreme weather 0%

Share of delay minutes airlines attributed to each cause (BTS).

In the news

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Headlines found by Google News; stories open on the publisher's site.

On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 28.6% 60
October 2025 66.7% 36
November 2025 80.0% 30
December 2025 76.9% 13
January 2026 70.4% 30
February 2026 71.4% 28
March 2026 96.7% 31
April 2026 82.8% 30
May 2026 80.6% 31
June 2026 50.0% 30
July 2026 52.0% 31
August 2026 55.2% 31

Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 โ€“ August 2026. Covers flights operated by reporting U.S. carriers. About our data

Latest airport & airline headlines

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Headlines found by Google News; stories open on the publisher's site.