Flight DL917
Delta Air Lines flight DL917
Looking for DL917 in the air…
New York (JFK) to Salt Lake City (SLC)
Historically, this flight arrives 15+ minutes late 20% of the time, and when it is late the delay averages 57 minutes. It was cancelled 1.9% of the time.
- On-time arrivals
- 79.8%
- Less than 15 minutes late
- Cancelled
- 1.9%
- Of scheduled flights
- Average delay when late
- 57 min
- Flights arriving 15+ minutes late
- Flights tracked
- 364
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 43%
- Air traffic control & airport 32%
- Late-arriving aircraft 20%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 86.7% | 30 |
| October 2025 | 90.3% | 31 |
| November 2025 | 82.8% | 29 |
| December 2025 | 73.3% | 31 |
| January 2026 | 86.2% | 31 |
| February 2026 | 84.0% | 28 |
| March 2026 | 87.1% | 31 |
| April 2026 | 93.3% | 30 |
| May 2026 | 87.1% | 31 |
| June 2026 | 70.0% | 30 |
| July 2026 | 51.7% | 31 |
| August 2026 | 64.5% | 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