Flight Reliability
DL 2676 · Delta Air Lines
Boston → Chicago (BOS–ORD)83% of its flights flew this route. The rest (CLT–DTW, MSP–ORD) are included in these numbers.
- 52%
- Arrive within 15 minutes
- 32 min
- Average arrival delay
- 2.0%
- Cancelled
- 13 min
- Median arrival delay
Based on 203 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
DL 2676 departing between 12–3 PM arrived on time 93% of the time, versus 44% between 6–9 PM.
Thursdays have been rough.
DL 2676 arrived on time 80% of the time on Saturdays and just 41% on Thursdays. That gap is worth planning around.
Well behind the BOS–ORD route.
DL 2676 arrived on time 52% of the time, versus 73% across the BOS–ORD route.
Well behind the Delta Air Lines network.
DL 2676 arrived on time 52% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon44%(32 flights)
- Tue55%(33 flights)
- Wed64%(33 flights)
- Thu41%(29 flights)
- Fri50%(26 flights)
- Sat80%(15 flights)
- Sun43%(30 flights)
- 9 AM–12 PM—(5 flights)
- 12–3 PM93%(29 flights)
- 3–6 PM—(1 flights)
- 6–9 PM44%(163 flights)
Jun 44% → Apr 96% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 44% | 27 |
| July 2025 | 41% | 22 |
| August 2025 | 63% | 24 |
| September 2025 | 27% | 26 |
| October 2025 | 32% | 25 |
| November 2025 | 58% | 24 |
| December 2025 | 38% | 16 |
| April 2026 | 96% | 22 |
- Departures on time
- 53%
- Diverted
- 0.5%
- Flights flown
- 198
- Months covered
- 10
Same route, other flights
Keep nerding
Based on 203 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.