Route
PHX → PAE
Phoenix Sky Harbor International Airport Seattle Paine Field International Airport
1,133 miles
Return route PAE → PHX →
How punctual is this route?
- On-time arrivals
- 88.7%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 49 min
- Flights arriving 15+ minutes late
- Flights tracked
- 597
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 64%
- Air traffic control & airport 18%
- Airline (crew, maintenance, cleaning) 12%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 83.3% | 7 |
| October 2025 | 87.9% | 59 |
| November 2025 | 72.3% | 66 |
| December 2025 | 83.6% | 67 |
| January 2026 | 83.7% | 51 |
| February 2026 | 88.2% | 51 |
| March 2026 | 87.1% | 62 |
| April 2026 | 96.4% | 55 |
| May 2026 | 97.4% | 38 |
| June 2026 | 100.0% | 30 |
| July 2026 | 100.0% | 53 |
| August 2026 | 91.4% | 58 |
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 |
|---|---|---|---|---|
| Alaska Airlines | 569 | 89.4% | 0.5% | 50 min |
| Frontier Airlines | 28 | 74.1% | 0.0% | 41 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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