Southwest Airlines TUL to DEN on-time performance
Southwest Airlines nonstop flights from Tulsa to Denver · Aug 2025 – Jul 2026
On-time arrivals
84%
arrived < 15 min late
Cancelled
1.1%
10 flights
Avg arrival delay
11 min
59 min when late
Rank on route
#1 of 4
route average 81% on time
Key facts
- Southwest Airlines flights on TUL to DEN arrived on time 84% of the time in Aug 2025 – Jul 2026.
- 1.1% were cancelled, and 5% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 81% on time overall.
- The largest source of delay minutes was late-arriving aircraft (35%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft35%
- Air traffic control & airport congestion34%
- Airline (crew, maintenance, cleaning, fueling)20%
- Extreme weather11%
- Security0%
Other airlines on TUL to DEN
- SkyWest Airlines80% on time · 16 min avg delay
- United Airlines77% on time · 12 min avg delay
- Frontier Airlines74% on time · 18 min avg delay
Full TUL to DEN comparison →
Southwest Airlines on-time record across all routes →
893 Southwest Airlines flights tracked on this route; 10 cancelled, 1 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.