Route Reliability
Tulsa → Denver
TUL–DEN · 541 miles · Tulsa International Airport to Denver International Airport
- 80%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 1.0%
- Cancelled
- 2,410
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Southwest Airlines83%896 flights
- 2.United Airlines79%1,472 flights
Not enough history to rank: Frontier Airlines (42 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning-you made the right choice.
TUL–DEN flights departing between 6–9 AM arrived on time 93% of the time, versus 64% between 3–6 PM.
Friday has been the better bet.
A small edge: 83% on time on Fridays against 79% on Tuesdays.
Southwest Airlines has a slight edge here.
Southwest Airlines arrived on time 83% of the time on this route; United Airlines managed 79%.
Slipping a little lately.
TUL–DEN flights arrived on time 81% of the time over the last three months in the data, compared with 86% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon80%(347 flights)
- Tue79%(327 flights)
- Wed80%(317 flights)
- Thu80%(358 flights)
- Fri83%(343 flights)
- Sat80%(313 flights)
- Sun80%(376 flights)
- 3–6 AM93%(134 flights)
- 6–9 AM93%(601 flights)
- 9 AM–12 PM80%(749 flights)
- 12–3 PM80%(146 flights)
- 3–6 PM64%(381 flights)
- 6–9 PM72%(337 flights)
- 9 PM–12 AM82%(33 flights)
Jun 67% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 67% | 208 |
| July 2025 | 68% | 212 |
| August 2025 | 75% | 200 |
| September 2025 | 85% | 197 |
| October 2025 | 81% | 205 |
| November 2025 | 88% | 198 |
| December 2025 | 84% | 202 |
| January 2026 | 90% | 187 |
| February 2026 | 85% | 183 |
| March 2026 | 84% | 194 |
| April 2026 | 79% | 186 |
| May 2026 | 81% | 209 |
Keep nerding
Based on 2,410 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.