Route
PIT → LAS
Pittsburgh International Airport Harry Reid International Airport
How punctual is this route?
- On-time arrivals
- 83.0%
- Less than 15 minutes late
- Cancelled
- 0.1%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 678
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 51%
- Airline (crew, maintenance, cleaning) 27%
- Air traffic control & airport 23%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 81.8% | 88 |
| October 2025 | 82.2% | 90 |
| November 2025 | 83.3% | 60 |
| December 2025 | 78.3% | 46 |
| January 2026 | 83.3% | 43 |
| February 2026 | 86.4% | 44 |
| March 2026 | 79.0% | 62 |
| April 2026 | 87.3% | 63 |
| May 2026 | 84.8% | 66 |
| June 2026 | 78.0% | 41 |
| July 2026 | 92.1% | 38 |
| August 2026 | 81.1% | 37 |
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 | 608 | 83.2% | 0.2% | 62 min |
| NK | 70 | 81.4% | 0.0% | 56 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN3484
2% late · 58 flights
-
NK1876
16% late · 56 flights
-
WN2261
9% late · 55 flights
-
WN3239
24% late · 54 flights
-
WN4350
2% late · 43 flights
-
WN2424
32% late · 31 flights
-
WN397
0% late · 31 flights
-
WN1657
3% late · 30 flights
-
WN4290
21% late · 30 flights
-
WN4288
29% late · 28 flights
-
WN4721
7% late · 28 flights
-
WN2680
4% late · 26 flights
-
WN3843
50% late · 24 flights
-
WN2031
9% late · 22 flights
-
WN2625
43% late · 21 flights
-
WN1717
5% late · 20 flights
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