Route
STL → LAS
St. Louis Lambert International Airport Harry Reid International Airport
How punctual is this route?
- On-time arrivals
- 74.9%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 65 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,107
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 48%
- Airline (crew, maintenance, cleaning) 32%
- Air traffic control & airport 17%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 79.6% | 165 |
| October 2025 | 76.6% | 188 |
| November 2025 | 82.7% | 173 |
| December 2025 | 75.8% | 186 |
| January 2026 | 78.6% | 161 |
| February 2026 | 81.1% | 144 |
| March 2026 | 83.5% | 208 |
| April 2026 | 70.5% | 167 |
| May 2026 | 79.9% | 171 |
| June 2026 | 54.8% | 180 |
| July 2026 | 65.3% | 192 |
| August 2026 | 71.2% | 172 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 1,789 | 74.7% | 0.2% | 58 min |
| Frontier Airlines | 318 | 75.6% | 2.8% | 109 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
F92017
27% late · 184 flights
-
F93107
20% late · 133 flights
-
WN4433
22% late · 63 flights
-
WN2804
45% late · 58 flights
-
WN4205
28% late · 58 flights
-
WN4503
9% late · 58 flights
-
WN4473
38% late · 57 flights
-
WN3935
82% late · 52 flights
-
WN3936
42% late · 52 flights
-
WN3153
10% late · 51 flights
-
WN3934
12% late · 51 flights
-
WN4359
45% late · 51 flights
-
WN2464
18% late · 49 flights
-
WN4213
12% late · 49 flights
-
WN3066
15% late · 47 flights
-
WN382
2% late · 46 flights
-
WN4431
22% late · 46 flights
-
WN4472
38% late · 42 flights
-
WN4474
31% late · 42 flights
-
WN2198
44% late · 33 flights
-
WN3844
0% late · 33 flights
-
WN4545
18% late · 33 flights
-
WN1372
26% late · 31 flights
-
WN1511
16% late · 31 flights
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