Spokane (GEG) to Las Vegas (LAS): On-Time Performance
Data through May 2026
When you fly GEG to LAS matters as much as anything else about the booking: the route swung from 96% on-time in April 2025 to just 71% in July 2024. Across the full period the route averages 85% on-time against a national 78%. Morning departures also hold up better than evening ones (93% vs 71%), which matters most in the rough months.
- On-time
- 85%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 0.2%
- Flights/day
- 2.3
- last 12 months
- Duration
- 2h 22m
- scheduled
- Distance
- 806 mi
Best airline from GEG to LAS
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 88% | 7 min | 0.2% | 1,489 |
| Allegiant Air | 71% | 21 min | 0.5% | 211 |
Monthly on-time trend
Best time to fly from GEG to LAS
Aim for departures around 6 a.m. (97% on-time); avoid 9 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 86% | 7 min |
| Tuesday | 90% | 8 min |
| Wednesday | 92% | 4 min |
| Thursday | 79% | 13 min |
| Friday | 79% | 10 min |
| Saturdaybest | 92% | 4 min |
| Sunday | 83% | 11 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft42%
- Airline operations28%
- National airspace system27%
- Weather3%
Frequently asked questions
- How often are flights from GEG to LAS delayed?
- 15% of GEG–LAS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 9 minutes.
- Which airline is most reliable from GEG to LAS?
- Southwest Airlines has the best on-time record on this route at 88%, based on 1,489 flights. 2 airlines flew GEG–LAS frequently enough to compare in this period.
- What is the best time of day to fly from GEG to LAS?
- Departures around 6 a.m. have the best record (97% on-time), while departures around 9 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from GEG to LAS?
- The scheduled GEG–LAS flight time averages 2h 22m over 806 miles. Actual arrival times vary — flights on this route land 15+ minutes late 15% of the time.
- How often are GEG to LAS flights cancelled?
- 0.2% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from GEG to LAS?
- July 2024 was the roughest month in this dataset, with only 71% of arrivals on time. The best was April 2025 at 96%. If your dates are flexible, that 25-point gap is worth planning around.
Explore related pages
More routes from GEG
Based on 1,700 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.