Flight DL303
Delta Air Lines flight DL303
Looking for DL303 in the air…
Dallas-Fort Worth (DFW) to Boston (BOS)
Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 87 minutes. It was cancelled 3.2% of the time.
- On-time arrivals
- 76.0%
- Less than 15 minutes late
- Cancelled
- 3.2%
- Of scheduled flights
- Average delay when late
- 87 min
- Flights arriving 15+ minutes late
- Flights tracked
- 251
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 44%
- Airline (crew, maintenance, cleaning) 34%
- Air traffic control & airport 19%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Boston (BOS) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 87 minutes. It was cancelled 1.1% of the time.
- On-time arrivals
- 71.7%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 87 min
- Flights arriving 15+ minutes late
- Flights tracked
- 185
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 42%
- Air traffic control & airport 42%
- Airline (crew, maintenance, cleaning) 15%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Orlando (MCO) to New York (LGA)
Only 4 flights on record, which is too few for reliable odds.
- On-time arrivals
- 66.7%
- Less than 15 minutes late
- Cancelled
- 25.0%
- Of scheduled flights
- Average delay when late
- 35 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 95%
- Late-arriving aircraft 5%
- Air traffic control & airport 0%
- 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 | 65.9% | 46 |
| October 2025 | 59.3% | 54 |
| November 2025 | 60.0% | 30 |
| December 2025 | 67.9% | 31 |
| January 2026 | 87.0% | 25 |
| February 2026 | 90.5% | 23 |
| March 2026 | 85.2% | 27 |
| April 2026 | 78.0% | 42 |
| May 2026 | 78.7% | 50 |
| June 2026 | 72.2% | 54 |
| July 2026 | 80.6% | 33 |
| August 2026 | 88.0% | 25 |
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