About 1 in 7 DL 2351 flights from Dallas arrived 15+ minutes late, diverted or cancelled over the past year (14%); 2.6% were cancelled. The typical flight landed 11 minutes early.
DL 2351: DFW → BOS
Scheduled to leave Dallas at 7:05 a.m. local time. Over the past year it arrived on time 86% of the time (348 flights), in line with other DL flights on the route at that hour (86%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 51 | 86% |
| Tuesday | 50 | 88% |
| Wednesday | 50 | 84% |
| Thursday | 50 | 92% |
| Friday | 50 | 84% |
| Saturday | 49 | 80% |
| Sunday | 48 | 85% |
Why it was late
All flights DFW → BOS · Connecting off DL 2351? Check the risk
Questions
How often is DL 2351 from DFW to BOS late?
Delta Air Lines 2351 from Dallas/Fort Worth, TX to Boston, MA arrived 15 or more minutes late, was diverted or was cancelled on 14% of 348 scheduled flights between September 2025 and August 2026. 2.6% 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.