Spokane (GEG) to Las Vegas (LAS): On-Time Performance
Data through July 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 69%), 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 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 87% | 7 min | 0.2% | 1,552 |
| Allegiant Air | 67% | 24 min | 0.5% | 219 |
Monthly on-time trend
Best time to fly from GEG to LAS
Aim for departures around 5 a.m. (97% on-time); avoid 8 p.m. departures (43%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 86% | 7 min |
| Tuesday | 90% | 7 min |
| Wednesday | 92% | 4 min |
| Thursday | 77% | 15 min |
| Friday | 79% | 11 min |
| Saturdaybest | 92% | 4 min |
| Sunday | 83% | 12 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft43%
- Airline operations26%
- National airspace system28%
- Weather2%
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 2024-07 and 2026-07. 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 87%, based on 1,552 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 5 a.m. have the best record (97% on-time), while departures around 8 p.m. have the worst (43%). 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 2024-07 and 2026-07, 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.
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Based on 1,771 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.