Southwest Airlines GEG to PHX on-time performance
Southwest Airlines nonstop flights from Spokane to Phoenix · Aug 2025 – Jul 2026
On-time arrivals
86%
arrived < 15 min late
Cancelled
0.5%
3 flights
Avg arrival delay
8 min
47 min when late
Rank on route
#1 of 4
route average 84% on time
Key facts
- Southwest Airlines flights on GEG to PHX arrived on time 86% of the time in Aug 2025 – Jul 2026.
- 0.5% were cancelled, and 3% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 84% on time overall.
- The largest source of delay minutes was late-arriving aircraft (55%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft55%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion17%
- Extreme weather0%
- Security0%
Other airlines on GEG to PHX
- American Airlines83% on time · 22 min avg delay
- Frontier Airlines64% on time · 24 min avg delay
- Envoy Air70% on time · 11 min avg delay
Full GEG to PHX comparison →
Southwest Airlines on-time record across all routes →
616 Southwest Airlines flights tracked on this route; 3 cancelled, 3 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.