Portland (PDX) to Las Vegas (LAS): On-Time Performance
Data through July 2026
When you fly PDX to LAS matters as much as anything else about the booking: the route swung from 89% on-time in November 2024 to just 69% in July 2024. Across the full period the route averages 82% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 73%), which matters most in the rough months.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 8.1
- last 12 months
- Duration
- 2h 14m
- scheduled
- Distance
- 763 mi
Best airline from PDX to LAS
4 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlinesmost reliable | 83% | 12 min | 1.1% | 977 |
| Alaska Airlines | 83% | 11 min | 0.6% | 2,946 |
| Southwest Airlines | 81% | 10 min | 0.1% | 2,498 |
| Frontier Airlines | 77% | 21 min | 2.3% | 427 |
Monthly on-time trend
Best time to fly from PDX to LAS
Aim for departures around 6 a.m. (97% on-time); avoid 6 p.m. departures (65%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 12 min |
| Tuesdaybest | 88% | 7 min |
| Wednesday | 83% | 9 min |
| Thursday | 77% | 15 min |
| Friday | 78% | 16 min |
| Saturdaybest | 88% | 8 min |
| Sunday | 81% | 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 aircraft42%
- Airline operations31%
- National airspace system26%
Frequently asked questions
- How often are flights from PDX to LAS delayed?
- 18% of PDX–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 11 minutes.
- Which airline is most reliable from PDX to LAS?
- Spirit Airlines has the best on-time record on this route at 83%, based on 977 flights. 4 airlines flew PDX–LAS frequently enough to compare in this period.
- What is the best time of day to fly from PDX to LAS?
- Departures around 6 a.m. have the best record (97% on-time), while departures around 6 p.m. have the worst (65%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PDX to LAS?
- The scheduled PDX–LAS flight time averages 2h 14m over 763 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are PDX to LAS flights cancelled?
- 0.6% 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 PDX to LAS?
- July 2024 was the roughest month in this dataset, with only 69% of arrivals on time. The best was November 2024 at 89%. If your dates are flexible, that 20-point gap is worth planning around.
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Based on 6,875 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.