Flight Reliability
DL 2351 · Delta Air Lines
Dallas–Fort Worth → Boston (DFW–BOS)
89
Pretty Reliable
WanderNerd Reliability Score
- 91%
- Arrive within 15 minutes
- 5 min early
- Average arrival delay
- 2.3%
- Cancelled
- 13 min early
- Median arrival delay
Based on 348 historical flights. Data through May 2026.
What the data says
Saturday is the weak spot.
DL 2351 arrived on time 96% of the time on Sundays. On Saturdays: 83%.
Well ahead of the DFW–BOS route.
DL 2351 arrived on time 91% of the time, versus 68% across the DFW–BOS route.
Better than the Delta Air Lines network average.
DL 2351 arrived on time 91% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon94%(47 flights)
- Tue90%(49 flights)
- Wed90%(49 flights)
- Thu92%(49 flights)
- Fri92%(50 flights)
- Sat83%(48 flights)
- Sun96%(47 flights)
- 6–9 AM91%(338 flights)
- 9 AM–12 PM—(1 flights)
93%
May
Jun 100% → May 93% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 100% | 30 |
| July 2025 | 94% | 31 |
| August 2025 | 93% | 30 |
| September 2025 | 90% | 29 |
| October 2025 | 90% | 31 |
| November 2025 | 90% | 30 |
| December 2025 | 90% | 19 |
| January 2026 | 91% | 23 |
| February 2026 | 85% | 26 |
| March 2026 | 87% | 30 |
| April 2026 | 87% | 30 |
| May 2026 | 93% | 30 |
- Departures on time
- 91%
- Diverted
- 0.3%
- Flights flown
- 339
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 348 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.