Best Time to Fly PHX to GEG: On-Time Stats by Hour & Airline
Phoenix Sky Harbor International → Spokane International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.8% of Phoenix (PHX) to Spokane (GEG) flights arrived on time (1,257 scheduled flights). That is 2.8 points below the national average of 77.6%.
Among 3 airlines, American Airlines led with 75.6% on time and Frontier Airlines was last with 68.9%.
Over 24 months, Tuesday was the most reliable day (86% on time) and July the worst month (68%).
The cancellation rate was 0.2% (US average 1.8%).
PHX to GEG on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| American Airlines | 75.6% | 71 min | 0.2% | 586 |
| Southwest Airlines | 74.7% | 38 min | 0.3% | 616 |
| Frontier Airlines | 68.9% | 79 min | 0.0% | 45 |
| Envoy Air | Limited data | 10 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PHX to GEG
On-time arrival % by scheduled departure hour (local time), 2,526 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 90.6% | 0.0% | 32 |
| 8am–9am | 90.5% | 0.0% | 74 |
| 9am–10am | 89.6% | 0.0% | 250 |
| 10am–11am | 79.4% | 0.0% | 389 |
| 11am–12pm | 81.7% | 0.0% | 420 |
| 12pm–1pm | 79.7% | 0.0% | 173 |
| 1pm–2pm | 80.9% | 0.0% | 68 |
| 2pm–3pm | 76.5% | 0.8% | 134 |
| 3pm–4pm | 75.0% | 0.0% | 44 |
| 4pm–5pm | Limited data | 27 | |
| 5pm–6pm | 81.8% | 0.0% | 33 |
| 6pm–7pm | 63.3% | 0.0% | 30 |
| 7pm–8pm | 69.5% | 0.0% | 59 |
| 8pm–9pm | 74.4% | 0.2% | 443 |
| 9pm–10pm | 72.1% | 0.0% | 247 |
| 10pm–11pm | 63.3% | 0.0% | 98 |
| 11pm–12am | Limited data | 5 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PHX to GEG
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 77.4% | -2.5 pts | 0.0% | 53 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.4% | -4.5 pts | 0.0% | 114 |
| Summer peak (Jun 15 - Aug 15) | 72.5% | -7.4 pts | 0.2% | 405 |
| All other days | 79.9% | — | 0.1% | 1,954 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).