Flight Reliability
DL 5531 · Delta Air Lines
New York → Tulsa (LGA–TUL)
35
Bring Snacks
WanderNerd Reliability Score
- 63%
- Arrive within 15 minutes
- 32 min
- Average arrival delay
- 6.1%
- Cancelled
- 3 min
- Median arrival delay
Based on 163 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 5531 arrived on time 73% of the time on Mondays and just 54% on Sundays. That gap is worth planning around.
Lagging the LGA–TUL route.
DL 5531 arrived on time 63% of the time, versus 70% across the LGA–TUL route.
Well behind the Delta Air Lines network.
DL 5531 arrived on time 63% of the time, versus 81% across the Delta Air Lines network.
Keep a backup plan handy.
DL 5531 was cancelled 6.1% of the time. Typical for U.S. flights is around 1–2%.
The breakdown
- Mon73%(26 flights)
- Tue64%(28 flights)
- Wed62%(26 flights)
- Thu61%(23 flights)
- Fri63%(24 flights)
- Sat—(0 flights)
- Sun54%(26 flights)
- 3–6 PM63%(147 flights)
- 6–9 PM—(6 flights)
44%
Dec
Jun 47% → Dec 44% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 47% | 19 |
| July 2025 | 52% | 21 |
| August 2025 | 84% | 25 |
| September 2025 | 84% | 25 |
| October 2025 | 62% | 26 |
| November 2025 | 52% | 21 |
| December 2025 | 44% | 16 |
- Departures on time
- 67%
- Diverted
- 0%
- Flights flown
- 153
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 163 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.