Flight Reliability
UA 5311 · United Airlines
Denver → Tulsa (DEN–TUL)100% of its flights flew this route. The rest (TUS–ORD) are included in these numbers.
92
Nerd Approved
WanderNerd Reliability Score
- 90%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 1.4%
- Cancelled
- 12 min early
- Median arrival delay
Based on 362 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
UA 5311 arrived on time 94% of the time on Tuesdays. On Sundays: 85%.
Better than the DEN–TUL route average.
UA 5311 arrived on time 90% of the time, versus 76% across the DEN–TUL route.
Better than the United Airlines network average.
UA 5311 arrived on time 90% of the time, versus 79% across the United Airlines network.
The breakdown
- Mon90%(51 flights)
- Tue94%(51 flights)
- Wed88%(50 flights)
- Thu86%(50 flights)
- Fri92%(51 flights)
- Sat92%(51 flights)
- Sun85%(53 flights)
- 9 AM–12 PM—(1 flights)
- 12–3 PM90%(356 flights)
97%
May
Jun 80% → May 97% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 80% | 30 |
| July 2025 | 90% | 31 |
| August 2025 | 90% | 31 |
| September 2025 | 93% | 30 |
| October 2025 | 94% | 31 |
| November 2025 | 93% | 28 |
| December 2025 | 90% | 30 |
| January 2026 | 90% | 30 |
| February 2026 | 85% | 27 |
| March 2026 | 83% | 29 |
| April 2026 | 90% | 29 |
| May 2026 | 97% | 31 |
- Departures on time
- 89%
- Diverted
- 0%
- Flights flown
- 357
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 362 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.