Best Time to Fly DEN to GEG: On-Time Stats by Hour & Airline
Denver International → Spokane International
Data through July 2026 · Last updated October 18, 2026
2,051 flights were scheduled from Denver (DEN) to Spokane (GEG) in the last 12 months, and 76.8% of those that flew arrived on time, 0.9 points below the US average of 77.6%.
SkyWest Airlines was the most punctual of the 4 airlines on the route at 90.3%, while Southwest Airlines trailed at 71.0%.
September has been the best month (88% on time) and Friday the weakest day of the week (73%).
0.3% of flights were cancelled, versus 1.8% nationally.
DEN 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 |
|---|---|---|---|---|
| SkyWest Airlines | 90.3% | 47 min | 0.8% | 250 |
| Frontier Airlines | 87.3% | 34 min | 0.0% | 110 |
| United Airlines | 77.3% | 56 min | 0.2% | 834 |
| Southwest Airlines | 71.0% | 47 min | 0.2% | 857 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to GEG
On-time arrival % by scheduled departure hour (local time), 4,024 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 2 | |
| 7am–8am | 83.7% | 0.0% | 208 |
| 8am–9am | 87.3% | 0.0% | 378 |
| 9am–10am | 86.2% | 0.0% | 210 |
| 10am–11am | 86.0% | 0.0% | 57 |
| 11am–12pm | 82.3% | 0.0% | 744 |
| 12pm–1pm | Limited data | 4 | |
| 1pm–2pm | 88.2% | 0.5% | 571 |
| 2pm–3pm | 85.2% | 0.0% | 61 |
| 3pm–4pm | 69.1% | 0.6% | 176 |
| 4pm–5pm | 65.1% | 2.6% | 156 |
| 5pm–6pm | Limited data | 12 | |
| 6pm–7pm | Limited data | 6 | |
| 7pm–8pm | 69.5% | 0.3% | 768 |
| 8pm–9pm | 57.3% | 0.4% | 248 |
| 9pm–10pm | 49.3% | 0.5% | 216 |
| 10pm–11pm | 59.7% | 0.5% | 207 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DEN 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) | 72.7% | -5.3 pts | 0.0% | 77 |
| Christmas & New Year (Dec 20 - Jan 3) | 72.9% | -5.1 pts | 0.0% | 170 |
| Summer peak (Jun 15 - Aug 15) | 67.8% | -10.3 pts | 0.9% | 772 |
| All other days | 78.1% | — | 0.2% | 3,005 |
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).