Route Reliability
Portland → Las Vegas
PDX–LAS · 763 miles · Portland International Airport to Harry Reid International Airport
- 82%
- Arrive within 15 minutes
- 5 min
- Average arrival delay
- 0.5%
- Cancelled
- 3,025
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Spirit Airlines84%188 flights
- 2.Alaska Airlines84%1,522 flights
- 3.Southwest Airlines80%1,150 flights
- 4.Frontier Airlines72%165 flights
What the data says
Morning-you made the right choice.
PDX–LAS flights departing between 3–6 AM arrived on time 98% of the time, versus 61% between 6–9 PM.
Skip Thursday if you can.
PDX–LAS flights arrived on time 88% of the time on Saturdays. On Thursdays: 78%.
Spirit Airlines runs this route best.
Spirit Airlines arrived on time 84% of the time on this route; Frontier Airlines managed 72%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon79%(476 flights)
- Tue86%(398 flights)
- Wed82%(391 flights)
- Thu78%(448 flights)
- Fri80%(464 flights)
- Sat88%(340 flights)
- Sun80%(490 flights)
- 3–6 AM98%(237 flights)
- 6–9 AM91%(511 flights)
- 9 AM–12 PM82%(736 flights)
- 12–3 PM79%(569 flights)
- 3–6 PM77%(548 flights)
- 6–9 PM61%(199 flights)
- 9 PM–12 AM80%(207 flights)
Jun 85% → May 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 85% | 291 |
| July 2025 | 78% | 301 |
| August 2025 | 83% | 273 |
| September 2025 | 80% | 263 |
| October 2025 | 77% | 248 |
| November 2025 | 81% | 235 |
| December 2025 | 75% | 239 |
| January 2026 | 86% | 223 |
| February 2026 | 86% | 206 |
| March 2026 | 82% | 256 |
| April 2026 | 82% | 237 |
| May 2026 | 86% | 235 |
Keep nerding
Based on 3,025 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.