Flight DL623
Delta Air Lines flight DL623
Looking for DL623 in the air…
Alerts at this flight's airports
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Advisory Coastal Flood Statement FLL
COASTAL FLOOD STATEMENT NOW IN EFFECT THROUGH THURSDAY EVENING
Weather
Salt Lake City (SLC) to Kahului (OGG)
Historically, this flight arrives 15+ minutes late 13% of the time, and when it is late the delay averages 119 minutes. It was cancelled 3.5% of the time.
- On-time arrivals
- 86.9%
- Less than 15 minutes late
- Cancelled
- 3.5%
- Of scheduled flights
- Average delay when late
- 119 min
- Flights arriving 15+ minutes late
- Flights tracked
- 142
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 88%
- Air traffic control & airport 6%
- Extreme weather 5%
- Late-arriving aircraft 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Fort Lauderdale (FLL) to New York (LGA)
Historically, this flight arrives 15+ minutes late 40% of the time, and when it is late the delay averages 61 minutes. It was cancelled 3.2% of the time.
- On-time arrivals
- 60.4%
- Less than 15 minutes late
- Cancelled
- 3.2%
- Of scheduled flights
- Average delay when late
- 61 min
- Flights arriving 15+ minutes late
- Flights tracked
- 94
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 67%
- Air traffic control & airport 22%
- Airline (crew, maintenance, cleaning) 11%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Indianapolis (IND) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 8.3% of the time.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 8.3%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
New York (JFK) to Chicago (ORD)
Only 5 flights on record, which is too few for reliable odds.
- On-time arrivals
- 50.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 151 min
- Flights arriving 15+ minutes late
- Flights tracked
- 5
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 50%
- Late-arriving aircraft 45%
- Air traffic control & airport 5%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Boston (BOS) to Atlanta (ATL)
Only 3 flights on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 33.3%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 3
- Scheduled flights in the period
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 77.8% | 27 |
| October 2025 | 63.0% | 27 |
| November 2025 | 54.5% | 24 |
| December 2025 | 33.3% | 16 |
| January 2026 | 100.0% | 14 |
| February 2026 | 100.0% | 13 |
| March 2026 | 66.7% | 4 |
| April 2026 | 85.0% | 20 |
| May 2026 | 92.9% | 31 |
| June 2026 | 83.3% | 30 |
| July 2026 | 75.9% | 31 |
| August 2026 | 93.5% | 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