Flight Reliability
DL 5831 · Delta Air Lines
Boston → New York (BOS–LGA)97% of its flights flew this route. The rest (CVG–BOS) are included in these numbers.
28
Bring Snacks
WanderNerd Reliability Score
- 66%
- Arrive within 15 minutes
- 19 min
- Average arrival delay
- 10.4%
- Cancelled
- 5 min early
- Median arrival delay
Based on 307 historical flights. Data through May 2026.
What the data says
Thursday is the weak spot.
DL 5831 arrived on time 69% of the time on Wednesdays. On Thursdays: 59%.
Lagging the BOS–LGA route.
DL 5831 arrived on time 66% of the time, versus 78% across the BOS–LGA route.
Well behind the Delta Air Lines network.
DL 5831 arrived on time 66% of the time, versus 81% across the Delta Air Lines network.
Keep a backup plan handy.
DL 5831 was cancelled 10.4% of the time. Typical for U.S. flights is around 1–2%.
The breakdown
- Mon64%(45 flights)
- Tue67%(48 flights)
- Wed69%(45 flights)
- Thu59%(41 flights)
- Fri67%(49 flights)
- Sat—(0 flights)
- Sun68%(47 flights)
- 12–3 PM—(9 flights)
- 6–9 PM65%(266 flights)
67%
May
Jun 59% → May 67% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 59% | 22 |
| July 2025 | 59% | 17 |
| August 2025 | 76% | 25 |
| September 2025 | 60% | 25 |
| October 2025 | 48% | 25 |
| November 2025 | 71% | 21 |
| December 2025 | 74% | 23 |
| January 2026 | 79% | 24 |
| February 2026 | 77% | 22 |
| March 2026 | 46% | 22 |
| April 2026 | 72% | 25 |
| May 2026 | 67% | 24 |
- Departures on time
- 63%
- Diverted
- 0%
- Flights flown
- 275
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 307 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.