Flight DL346
Delta Air Lines flight DL346
Looking for DL346 in the air…
Denver (DEN) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 21% of the time, and when it is late the delay averages 55 minutes. It was cancelled 1.5% of the time.
- On-time arrivals
- 79.2%
- Less than 15 minutes late
- Cancelled
- 1.5%
- Of scheduled flights
- Average delay when late
- 55 min
- Flights arriving 15+ minutes late
- Flights tracked
- 339
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 34%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 21%
- Extreme weather 12%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Atlanta (ATL) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 46 minutes. It was cancelled 4.0% of the time.
- On-time arrivals
- 86.5%
- Less than 15 minutes late
- Cancelled
- 4.0%
- Of scheduled flights
- Average delay when late
- 46 min
- Flights arriving 15+ minutes late
- Flights tracked
- 100
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 45%
- Airline (crew, maintenance, cleaning) 40%
- Late-arriving aircraft 15%
- 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 | 86.7% | 30 |
| October 2025 | 73.1% | 27 |
| November 2025 | 84.6% | 26 |
| December 2025 | 75.0% | 29 |
| January 2026 | 73.3% | 31 |
| February 2026 | 88.9% | 45 |
| March 2026 | 83.3% | 62 |
| April 2026 | 86.2% | 60 |
| May 2026 | 77.1% | 37 |
| June 2026 | 76.7% | 30 |
| July 2026 | 60.0% | 31 |
| August 2026 | 93.1% | 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