Flight AA1187
American Airlines flight AA1187
Looking for AA1187 in the air…
Chicago (ORD) to Washington (DCA)
Historically, this flight arrives 15+ minutes late 43% of the time, and when it is late the delay averages 109 minutes. It was cancelled 9.1% of the time.
- On-time arrivals
- 56.7%
- Less than 15 minutes late
- Cancelled
- 9.1%
- Of scheduled flights
- Average delay when late
- 109 min
- Flights arriving 15+ minutes late
- Flights tracked
- 99
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 60%
- Airline (crew, maintenance, cleaning) 20%
- Extreme weather 15%
- Air traffic control & airport 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Washington (DCA) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 31% of the time, and when it is late the delay averages 80 minutes. It was cancelled 3.3% of the time.
- On-time arrivals
- 68.5%
- Less than 15 minutes late
- Cancelled
- 3.3%
- Of scheduled flights
- Average delay when late
- 80 min
- Flights arriving 15+ minutes late
- Flights tracked
- 92
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 72%
- Airline (crew, maintenance, cleaning) 17%
- Air traffic control & airport 11%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to Orlando (MCO)
Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 43 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 94.6%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 43 min
- Flights arriving 15+ minutes late
- Flights tracked
- 37
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 47%
- Late-arriving aircraft 37%
- Airline (crew, maintenance, cleaning) 17%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Newark (EWR) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 3% of the time, and when it is late the delay averages 39 minutes. It was cancelled 6.1% of the time.
- On-time arrivals
- 96.7%
- Less than 15 minutes late
- Cancelled
- 6.1%
- Of scheduled flights
- Average delay when late
- 39 min
- Flights arriving 15+ minutes late
- Flights tracked
- 33
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 100%
- Airline (crew, maintenance, cleaning) 0%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Milwaukee (MKE) to Phoenix (PHX)
Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 90 minutes. It was cancelled 3.3% of the time.
- On-time arrivals
- 72.4%
- Less than 15 minutes late
- Cancelled
- 3.3%
- Of scheduled flights
- Average delay when late
- 90 min
- Flights arriving 15+ minutes late
- Flights tracked
- 30
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 52%
- Late-arriving aircraft 45%
- Air traffic control & airport 2%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Miami (MIA)
Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 80 minutes. It was cancelled 4.2% of the time.
- On-time arrivals
- 73.9%
- Less than 15 minutes late
- Cancelled
- 4.2%
- Of scheduled flights
- Average delay when late
- 80 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 71%
- Airline (crew, maintenance, cleaning) 16%
- Air traffic control & airport 13%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Charlotte (CLT) to Washington (DCA)
Only 19 flights on record, which is too few for reliable odds.
- On-time arrivals
- 52.6%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 40 min
- Flights arriving 15+ minutes late
- Flights tracked
- 19
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 38%
- Air traffic control & airport 35%
- Late-arriving aircraft 27%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Raleigh/Durham (RDU)
Only 13 flights on record, which is too few for reliable odds.
- On-time arrivals
- 69.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 76 min
- Flights arriving 15+ minutes late
- Flights tracked
- 13
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 65%
- Air traffic control & airport 31%
- Airline (crew, maintenance, cleaning) 4%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 70.0% | 30 |
| October 2025 | 77.4% | 31 |
| November 2025 | 57.7% | 29 |
| December 2025 | 58.6% | 29 |
| January 2026 | 87.5% | 27 |
| February 2026 | 85.7% | 28 |
| March 2026 | 65.5% | 31 |
| April 2026 | 100.0% | 26 |
| May 2026 | 77.8% | 27 |
| June 2026 | 68.0% | 28 |
| July 2026 | 48.0% | 30 |
| August 2026 | 53.3% | 31 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data