Flight AA403
American Airlines flight AA403
Looking for AA403 in the air…
Chicago (ORD) to Buffalo (BUF)
Historically, this flight arrives 15+ minutes late 65% of the time, and when it is late the delay averages 80 minutes. It was cancelled 10.5% of the time.
- On-time arrivals
- 35.3%
- Less than 15 minutes late
- Cancelled
- 10.5%
- Of scheduled flights
- Average delay when late
- 80 min
- Flights arriving 15+ minutes late
- Flights tracked
- 76
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 76%
- Airline (crew, maintenance, cleaning) 20%
- Air traffic control & airport 4%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Boston (BOS) to Philadelphia (PHL)
Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 91 minutes. It was cancelled 1.6% of the time.
- On-time arrivals
- 77.4%
- Less than 15 minutes late
- Cancelled
- 1.6%
- Of scheduled flights
- Average delay when late
- 91 min
- Flights arriving 15+ minutes late
- Flights tracked
- 63
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 78%
- Air traffic control & airport 13%
- Airline (crew, maintenance, cleaning) 6%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Charlotte (CLT) to Chicago (ORD)
Only 12 flights on record, which is too few for reliable odds.
- On-time arrivals
- 50.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 57 min
- Flights arriving 15+ minutes late
- Flights tracked
- 12
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 47%
- Late-arriving aircraft 31%
- Air traffic control & airport 20%
- Security 2%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| November 2025 | 89.3% | 28 |
| December 2025 | 62.1% | 30 |
| January 2026 | 100.0% | 5 |
| April 2026 | 42.9% | 7 |
| May 2026 | 43.8% | 16 |
| June 2026 | 35.7% | 30 |
| July 2026 | 38.5% | 31 |
| August 2026 | 0.0% | 4 |
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