Flight Reliability
DL 1103 · Delta Air Lines
Boston → Minneapolis (BOS–MSP)
86
Pretty Reliable
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 2 min early
- Average arrival delay
- 1.4%
- Cancelled
- 10 min early
- Median arrival delay
Based on 357 historical flights. Data through May 2026.
What the data says
12–3 PM has a slight edge.
Departures between 12–3 PM arrived on time 86% of the time, against 83% between 9 AM–12 PM.
Tuesday is the weak spot.
DL 1103 arrived on time 89% of the time on Wednesdays. On Tuesdays: 77%.
Trending in the right direction.
DL 1103 arrived on time 89% of the time over the last three months in the data, compared with 77% in the three months before that.
The breakdown
- Mon88%(49 flights)
- Tue77%(51 flights)
- Wed89%(52 flights)
- Thu85%(52 flights)
- Fri84%(50 flights)
- Sat82%(49 flights)
- Sun80%(49 flights)
- 6–9 AM—(1 flights)
- 9 AM–12 PM83%(322 flights)
- 12–3 PM86%(29 flights)
94%
May
Jun 70% → May 94% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 70% | 30 |
| July 2025 | 77% | 31 |
| August 2025 | 94% | 31 |
| September 2025 | 83% | 30 |
| October 2025 | 97% | 31 |
| November 2025 | 77% | 30 |
| December 2025 | 65% | 26 |
| January 2026 | 78% | 27 |
| February 2026 | 89% | 26 |
| March 2026 | 79% | 29 |
| April 2026 | 93% | 30 |
| May 2026 | 94% | 31 |
- Departures on time
- 85%
- Diverted
- 0%
- Flights flown
- 352
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 357 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.