Grand Rapids (GRR) to Las Vegas (LAS): On-Time Performance
Data through July 2026
The calendar drives reliability on GRR–LAS. April 2025 flights landed on schedule 96% of the time, but July 2025 dropped to 54% — a gap of 42 points. Across the full period the route averages 77% on-time against a national 78%.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 1.1
- last 12 months
- Duration
- 4h 14m
- scheduled
- Distance
- 1,642 mi
Best airline from GRR to LAS
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 80% | 12 min | 0.0% | 425 |
| Allegiant Air | 75% | 24 min | 0.0% | 447 |
Monthly on-time trend
Best time to fly from GRR to LAS
Aim for departures around 6 a.m. (92% on-time); avoid 10 p.m. departures (70%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 18 min |
| Tuesday | 78% | 14 min |
| Wednesday | 80% | 12 min |
| Thursday | 77% | 13 min |
| Friday | 73% | 29 min |
| Saturdaybest | 80% | 11 min |
| Sunday | 77% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft32%
- Airline operations42%
- National airspace system25%
- Weather1%
Frequently asked questions
- How often are flights from GRR to LAS delayed?
- 23% of GRR–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 18 minutes.
- Which airline is most reliable from GRR to LAS?
- Southwest Airlines has the best on-time record on this route at 80%, based on 425 flights. 2 airlines flew GRR–LAS frequently enough to compare in this period.
- What is the best time of day to fly from GRR to LAS?
- Departures around 6 a.m. have the best record (92% on-time), while departures around 10 p.m. have the worst (70%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from GRR to LAS?
- The scheduled GRR–LAS flight time averages 4h 14m over 1,642 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are GRR to LAS flights cancelled?
- 0% 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 GRR to LAS?
- July 2025 was the roughest month in this dataset, with only 54% of arrivals on time. The best was April 2025 at 96%. If your dates are flexible, that 42-point gap is worth planning around.
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Based on 872 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.