PIT to LAS flight delays & on-time performance
Nonstop flights from Pittsburgh International Airport to Harry Reid International Airport · 1,910 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PIT or LAS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Pittsburgh (PIT) to Las Vegas (LAS) arrived on time 83% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.1% were cancelled, and 4% arrived an hour or more late.
- Southwest Airlines was the most punctual airline here (84% on time); Spirit Airlines was the least (81%).
- Departures scheduled around 7am did best (96% on time); around 7pm did worst (67%).
- Wednesday was the most reliable day to fly (91% on time) and Sunday the least (77%).
- The largest source of delay minutes was late-arriving aircraft (51%).
Which airline is most on time from PIT to LAS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 84% | 0.2% | 10 min | 4.1% | 632 |
| Spirit Airlines | 81% | 0.0% | 11 min | 4.7% | 87 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am92%92 flights
- 6am96%118 flights
- 7am96%104 flights
- 8am93%16 flights
- 12pm84%38 flights
- 2pm77%22 flights
- 3pm85%39 flights
- 4pm71%35 flights
- 5pm68%169 flights
- 6pm79%19 flights
- 7pm67%42 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday81%0.0% cancelled
- Tuesday90%0.0% cancelled
- Wednesday91%0.0% cancelled
- Thursday79%0.0% cancelled
- Friday80%0.0% cancelled
- Saturday87%0.0% cancelled
- Sunday77%0.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft51%
- Airline (crew, maintenance, cleaning, fueling)26%
- Air traffic control & airport congestion23%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
PIT to LAS: common questions
- How often are PIT to LAS flights on time?
- 83% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Pittsburgh to Las Vegas cancelled?
- 0.1% of scheduled flights were cancelled (1 of 719).
- How long are typical delays?
- Across all flights the average arrival delay was 10 min (early arrivals count as zero). Flights that were late arrived 53 min behind schedule on average, and 4.2% of flights were an hour or more late.
- How long is taxi time at PIT?
- Flights on this route spent 13 min taxiing from the gate to takeoff on average.
Related routes
Return trip: LAS to PIT — 76% on time
More flights from Pittsburgh
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PIT → LAS, nonstop flights by US airlines that report to the DOT. How we calculate this.