Flight Reliability
DL 5653 · Delta Air Lines
Boston → Columbus (BOS–CMH)96% of its flights flew this route. The rest (JFK–CHS, CMH–BOS) are included in these numbers.
86
Pretty Reliable
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 2 min
- Average arrival delay
- 1.4%
- Cancelled
- 10 min early
- Median arrival delay
Based on 355 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 84% of the time, against 79% between 3–6 PM.
Monday is the weak spot.
DL 5653 arrived on time 90% of the time on Tuesdays. On Mondays: 78%.
The breakdown
- Mon78%(49 flights)
- Tue90%(50 flights)
- Wed84%(50 flights)
- Thu88%(49 flights)
- Fri78%(50 flights)
- Sat84%(49 flights)
- Sun83%(53 flights)
- 9 AM–12 PM—(1 flights)
- 12–3 PM84%(297 flights)
- 3–6 PM79%(52 flights)
87%
May
Jun 93% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 93% | 30 |
| July 2025 | 87% | 30 |
| August 2025 | 94% | 31 |
| September 2025 | 69% | 29 |
| October 2025 | 67% | 30 |
| November 2025 | 83% | 29 |
| December 2025 | 86% | 28 |
| January 2026 | 89% | 27 |
| February 2026 | 81% | 26 |
| March 2026 | 77% | 31 |
| April 2026 | 90% | 29 |
| May 2026 | 87% | 30 |
- Departures on time
- 84%
- Diverted
- 0%
- Flights flown
- 350
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 355 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.