Flight DL514
Delta Air Lines flight DL514
Looking for DL514 in the air…
Boston (BOS) to Phoenix (PHX)
Historically, this flight arrives 15+ minutes late 29% of the time, and when it is late the delay averages 53 minutes. It was cancelled 1.4% of the time.
- On-time arrivals
- 71.2%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 359
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 43%
- Late-arriving aircraft 28%
- Airline (crew, maintenance, cleaning) 22%
- Extreme weather 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to Boston (BOS)
Historically, this flight arrives 15+ minutes late 30% of the time, and when it is late the delay averages 87 minutes. It was cancelled 1.2% of the time.
- On-time arrivals
- 70.3%
- Less than 15 minutes late
- Cancelled
- 1.2%
- Of scheduled flights
- Average delay when late
- 87 min
- Flights arriving 15+ minutes late
- Flights tracked
- 160
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 38%
- Air traffic control & airport 36%
- Late-arriving aircraft 25%
- 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 | 72.9% | 49 |
| October 2025 | 66.1% | 62 |
| November 2025 | 63.8% | 58 |
| December 2025 | 46.8% | 47 |
| January 2026 | 72.4% | 30 |
| February 2026 | 75.6% | 45 |
| March 2026 | 82.3% | 62 |
| April 2026 | 92.9% | 42 |
| May 2026 | 64.5% | 31 |
| June 2026 | 73.3% | 30 |
| July 2026 | 65.5% | 32 |
| August 2026 | 76.7% | 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