About 1 in 6 DL 551 flights from Dallas arrived 15+ minutes late, diverted or cancelled over the past year (16%); 1.5% were cancelled. The typical flight landed 7 minutes early.
DL 551: DFW → LGA
Scheduled to leave Dallas at 7:00 a.m. local time. Over the past year it arrived on time 84% of the time (201 flights), in line with other DL flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 33 | 70% |
| Tuesday | 32 | 84% |
| Wednesday | 32 | 88% |
| Thursday | 33 | 88% |
| Friday | 33 | 91% |
| Saturday | 19 | — |
| Sunday | 19 | — |
Why it was late
All flights DFW → LGA · Connecting off DL 551? Check the risk
Questions
How often is DL 551 from DFW to LGA late?
Delta Air Lines 551 from Dallas/Fort Worth, TX to New York, NY arrived 15 or more minutes late, was diverted or was cancelled on 16% of 201 scheduled flights between September 2025 and August 2026. 1.5% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.