Flight DL1166
Delta Air Lines flight DL1166
Looking for DL1166 in the air…
San Antonio (SAT) to New York (JFK)
Historically, this flight arrives 15+ minutes late 20% of the time, and when it is late the delay averages 117 minutes. It was cancelled 4.7% of the time.
- On-time arrivals
- 79.9%
- Less than 15 minutes late
- Cancelled
- 4.7%
- Of scheduled flights
- Average delay when late
- 117 min
- Flights arriving 15+ minutes late
- Flights tracked
- 362
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 38%
- Air traffic control & airport 33%
- Extreme weather 15%
- Airline (crew, maintenance, cleaning) 14%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
New York (JFK) to San Antonio (SAT)
Historically, this flight arrives 15+ minutes late 13% of the time, and when it is late the delay averages 104 minutes. It was cancelled 4.7% of the time.
- On-time arrivals
- 87.0%
- Less than 15 minutes late
- Cancelled
- 4.7%
- Of scheduled flights
- Average delay when late
- 104 min
- Flights arriving 15+ minutes late
- Flights tracked
- 340
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 64%
- Air traffic control & airport 34%
- Extreme weather 3%
- Late-arriving aircraft 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 | 89.8% | 60 |
| October 2025 | 87.1% | 62 |
| November 2025 | 86.4% | 60 |
| December 2025 | 76.7% | 48 |
| January 2026 | 84.3% | 57 |
| February 2026 | 79.6% | 53 |
| March 2026 | 88.0% | 58 |
| April 2026 | 96.6% | 58 |
| May 2026 | 93.5% | 62 |
| June 2026 | 71.2% | 60 |
| July 2026 | 77.8% | 62 |
| August 2026 | 66.7% | 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