Southwest Airlines GEG to DEN on-time performance
Southwest Airlines nonstop flights from Spokane to Denver · Aug 2025 – Jul 2026
On-time arrivals
83%
arrived < 15 min late
Cancelled
0.1%
1 flights
Avg arrival delay
11 min
54 min when late
Rank on route
#3 of 4
route average 84% on time
Key facts
- Southwest Airlines flights on GEG to DEN arrived on time 83% of the time in Aug 2025 – Jul 2026.
- 0.1% were cancelled, and 5% arrived an hour or more late.
- That ranks #3 of 4 airlines on this route, which averaged 84% on time overall.
- The largest source of delay minutes was late-arriving aircraft (43%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft43%
- Air traffic control & airport congestion38%
- Airline (crew, maintenance, cleaning, fueling)17%
- Extreme weather2%
- Security0%
Other airlines on GEG to DEN
- United Airlines86% on time · 13 min avg delay
- SkyWest Airlines87% on time · 15 min avg delay
- Frontier Airlines80% on time · 8 min avg delay
Full GEG to DEN comparison →
Southwest Airlines on-time record across all routes →
858 Southwest Airlines flights tracked on this route; 1 cancelled, 6 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.