Flight DL478
Delta Air Lines flight DL478
Looking for DL478 in the air…
Atlanta (ATL) to Portland (PDX)
Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 53 minutes. It was cancelled 0.8% of the time.
- On-time arrivals
- 72.7%
- Less than 15 minutes late
- Cancelled
- 0.8%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 263
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 41%
- Air traffic control & airport 33%
- Late-arriving aircraft 24%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Washington (DCA) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 32% of the time, and when it is late the delay averages 270 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 67.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 270 min
- Flights arriving 15+ minutes late
- Flights tracked
- 29
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 82%
- Late-arriving aircraft 15%
- Air traffic control & airport 3%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Key West (EYW) to New York (LGA)
Only 16 flights on record, which is too few for reliable odds.
- On-time arrivals
- 35.7%
- Less than 15 minutes late
- Cancelled
- 12.5%
- Of scheduled flights
- Average delay when late
- 180 min
- Flights arriving 15+ minutes late
- Flights tracked
- 16
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 73%
- Late-arriving aircraft 23%
- Air traffic control & airport 4%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
New York (LGA) to Key West (EYW)
Only 16 flights on record, which is too few for reliable odds.
- On-time arrivals
- 42.9%
- Less than 15 minutes late
- Cancelled
- 6.2%
- Of scheduled flights
- Average delay when late
- 81 min
- Flights arriving 15+ minutes late
- Flights tracked
- 16
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 44%
- Air traffic control & airport 39%
- Extreme weather 10%
- Late-arriving aircraft 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Orlando (MCO) to Minneapolis (MSP)
Only 3 flights on record, which is too few for reliable odds.
- On-time arrivals
- 66.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 148 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 100%
- Airline (crew, maintenance, cleaning) 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Washington (DCA) to Minneapolis (MSP)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 90.0% | 30 |
| October 2025 | 77.4% | 31 |
| November 2025 | 70.0% | 30 |
| December 2025 | 56.4% | 43 |
| January 2026 | 70.6% | 35 |
| February 2026 | 73.1% | 28 |
| March 2026 | 48.4% | 31 |
| April 2026 | 86.7% | 30 |
| May 2026 | 54.8% | 31 |
| June 2026 | 83.3% | 6 |
| July 2026 | 75.0% | 4 |
| August 2026 | 67.9% | 29 |
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