Flight UA1187
United Airlines flight UA1187
Looking for UA1187 in the airâŚ
PBI â EWR
Historically, this flight arrives 15+ minutes late 34% of the time, and when it is late the delay averages 88 minutes. It was cancelled 4.7% of the time.
- On-time arrivals
- 66.4%
- Less than 15 minutes late
- Cancelled
- 4.7%
- Of scheduled flights
- Average delay when late
- 88 min
- Flights arriving 15+ minutes late
- Flights tracked
- 150
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 48%
- Late-arriving aircraft 35%
- Airline (crew, maintenance, cleaning) 17%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
ORD â PBI
Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 73 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 75.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 73 min
- Flights arriving 15+ minutes late
- Flights tracked
- 140
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 47%
- Air traffic control & airport 27%
- Airline (crew, maintenance, cleaning) 16%
- Extreme weather 10%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
West Palm Beach (DJT) to Newark (EWR)
Historically, this flight arrives 15+ minutes late 54% of the time, and when it is late the delay averages 231 minutes. It was cancelled 4.0% of the time.
- On-time arrivals
- 45.8%
- Less than 15 minutes late
- Cancelled
- 4.0%
- Of scheduled flights
- Average delay when late
- 231 min
- Flights arriving 15+ minutes late
- Flights tracked
- 25
- Scheduled flights in the period
What caused the delays
- Extreme weather 53%
- Late-arriving aircraft 29%
- Air traffic control & airport 15%
- Airline (crew, maintenance, cleaning) 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Newark (EWR) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 91 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 91.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 91 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 91%
- Late-arriving aircraft 9%
- Airline (crew, maintenance, cleaning) 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 90.0% | 30 |
| October 2025 | 77.4% | 31 |
| November 2025 | 76.7% | 30 |
| December 2025 | 71.0% | 31 |
| January 2026 | 71.0% | 31 |
| February 2026 | 77.8% | 19 |
| March 2026 | 66.7% | 28 |
| April 2026 | 80.0% | 30 |
| May 2026 | 81.5% | 28 |
| June 2026 | 50.0% | 26 |
| July 2026 | 50.0% | 30 |
| August 2026 | 45.8% | 25 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 â August 2026. Covers flights operated by reporting U.S. carriers. About our data