Flight Reliability
AA 5937 · American Airlines
MDT → Boston (MDT–BOS)
95
Nerd Approved
WanderNerd Reliability Score
- 92%
- Arrive within 15 minutes
- 9 min early
- Average arrival delay
- 1.3%
- Cancelled
- 14 min early
- Median arrival delay
Based on 304 historical flights. Data through May 2026.
What the data says
Mornings have a slight edge.
Departures between 6–9 AM arrived on time 93% of the time, against 86% between 3–6 AM.
Skip Tuesday if you can.
AA 5937 arrived on time 98% of the time on Wednesdays. On Tuesdays: 86%.
Well ahead of the American Airlines network.
AA 5937 arrived on time 92% of the time, versus 77% across the American Airlines network.
Ticking up lately.
AA 5937 arrived on time 94% of the time over the last three months in the data, compared with 90% in the three months before that.
The breakdown
- Mon93%(43 flights)
- Tue86%(43 flights)
- Wed98%(44 flights)
- Thu93%(43 flights)
- Fri89%(44 flights)
- Sat90%(39 flights)
- Sun96%(44 flights)
- 3–6 AM86%(28 flights)
- 6–9 AM93%(271 flights)
- 9 AM–12 PM—(1 flights)
94%
Mar
Jun 97% → Mar 94% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 97% | 30 |
| July 2025 | 97% | 31 |
| August 2025 | 90% | 31 |
| September 2025 | 83% | 30 |
| October 2025 | 94% | 31 |
| November 2025 | 90% | 30 |
| December 2025 | 87% | 30 |
| January 2026 | 88% | 25 |
| February 2026 | 100% | 25 |
| March 2026 | 94% | 31 |
- Departures on time
- 94%
- Diverted
- 0%
- Flights flown
- 300
- Months covered
- 11
Same route, other flights
Keep nerding
Based on 304 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.