Flight Reliability
DL 726 · Delta Air Lines
Atlanta → Boston (ATL–BOS)
69
Usually Fine
WanderNerd Reliability Score
- 69%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 1.1%
- Cancelled
- 1 min early
- Median arrival delay
Based on 354 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 726 arrived on time 77% of the time on Wednesdays and just 61% on Sundays. That gap is worth planning around.
A bit behind the ATL–BOS route.
DL 726 arrived on time 69% of the time, versus 74% across the ATL–BOS route.
Lagging the Delta Air Lines network.
DL 726 arrived on time 69% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon66%(50 flights)
- Tue69%(52 flights)
- Wed77%(52 flights)
- Thu62%(52 flights)
- Fri75%(51 flights)
- Sat74%(42 flights)
- Sun61%(49 flights)
- 9 AM–12 PM—(2 flights)
- 12–3 PM69%(346 flights)
76%
May
Jun 57% → May 76% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 57% | 30 |
| July 2025 | 70% | 30 |
| August 2025 | 84% | 31 |
| September 2025 | 50% | 30 |
| October 2025 | 42% | 31 |
| November 2025 | 73% | 30 |
| December 2025 | 71% | 31 |
| January 2026 | 88% | 25 |
| February 2026 | 70% | 23 |
| March 2026 | 87% | 30 |
| April 2026 | 64% | 28 |
| May 2026 | 76% | 29 |
- Departures on time
- 67%
- Diverted
- 0.6%
- Flights flown
- 348
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 354 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.