Flight DL1638
Delta Air Lines flight DL1638
Looking for DL1638 in the air…
JFK → PBI
Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 85 minutes. It was cancelled 4.8% of the time.
- On-time arrivals
- 73.1%
- Less than 15 minutes late
- Cancelled
- 4.8%
- Of scheduled flights
- Average delay when late
- 85 min
- Flights arriving 15+ minutes late
- Flights tracked
- 333
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 35%
- Air traffic control & airport 34%
- Airline (crew, maintenance, cleaning) 31%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
PBI → JFK
Historically, this flight arrives 15+ minutes late 45% of the time, and when it is late the delay averages 117 minutes. It was cancelled 6.8% of the time.
- On-time arrivals
- 55.0%
- Less than 15 minutes late
- Cancelled
- 6.8%
- Of scheduled flights
- Average delay when late
- 117 min
- Flights arriving 15+ minutes late
- Flights tracked
- 162
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 48%
- Late-arriving aircraft 33%
- Air traffic control & airport 19%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
West Palm Beach (DJT) to New York (JFK)
Historically, this flight arrives 15+ minutes late 47% of the time, and when it is late the delay averages 100 minutes. It was cancelled 3.2% of the time.
- On-time arrivals
- 53.3%
- Less than 15 minutes late
- Cancelled
- 3.2%
- Of scheduled flights
- Average delay when late
- 100 min
- Flights arriving 15+ minutes late
- Flights tracked
- 31
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 74%
- Air traffic control & airport 22%
- Extreme weather 2%
- Airline (crew, maintenance, cleaning) 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
New York (JFK) to West Palm Beach (DJT)
Historically, this flight arrives 15+ minutes late 47% of the time, and when it is late the delay averages 88 minutes. It was cancelled 3.2% of the time.
- On-time arrivals
- 53.3%
- Less than 15 minutes late
- Cancelled
- 3.2%
- Of scheduled flights
- Average delay when late
- 88 min
- Flights arriving 15+ minutes late
- Flights tracked
- 31
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 43%
- Airline (crew, maintenance, cleaning) 37%
- Late-arriving aircraft 11%
- Extreme weather 9%
- 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 | 76.7% | 30 |
| October 2025 | 60.0% | 31 |
| November 2025 | 71.4% | 29 |
| December 2025 | 66.7% | 43 |
| January 2026 | 70.6% | 35 |
| February 2026 | 65.9% | 45 |
| March 2026 | 63.2% | 62 |
| April 2026 | 60.0% | 42 |
| May 2026 | 76.4% | 56 |
| June 2026 | 71.9% | 60 |
| July 2026 | 58.9% | 62 |
| August 2026 | 53.3% | 62 |
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