Route · PHX → SEA · 2020–2025 BTS data
Phoenix to Seattle
The PHX–SEA corridor (Phoenix, AZ → Seattle, WA) runs ahead of the national average, served by 43 carriers across roughly 1,107 miles.
Data updated 2026-06-13
- 84.3%
- On-time
- +5.3 pts
- vs US avg
- 63 min
- Delay when late
- 38,561
- Flights
Cancelled
0.6%
Best Month
Oct 2024 90%
Worst Month
Jul 2024 69%
Distance
1,107 mi
Carriers
43
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 627 | 142 | 3 | 2 | DL,WN,F9,AS,AA,MQ,OO |
| Nov 2025 | 594 | 113 | 6 | 0 | OO,DL,F9,MQ,AA,AS,WN |
| Oct 2025 | 600 | 117 | 3 | 1 | AA,AS,DL,OO,WN,F9,MQ |
| Sep 2025 | 544 | 83 | 3 | 2 | MQ,WN,OO,DL,F9,AS |
| Aug 2025 | 584 | 115 | 3 | 0 | AA,OO,WN,F9,MQ,AS,DL |
| Jul 2025 | 621 | 110 | 3 | 0 | AA,AS,OO,WN,DL,F9,MQ |
| Jun 2025 | 618 | 141 | 1 | 1 | AA,AS,DL,OO,WN,F9,MQ |
| May 2025 | 653 | 115 | 3 | 0 | AS,DL,OO,WN,F9 |
| Apr 2025 | 665 | 97 | 0 | 0 | DL,F9,OO,WN,AS |
| Mar 2025 | 684 | 136 | 2 | 1 | AS,DL,OO,WN,F9,MQ |
| Feb 2025 | 572 | 109 | 6 | 0 | AS,DL,OO,WN,F9,MQ |
| Jan 2025 | 599 | 80 | 0 | 0 | AS,OO,WN,DL,F9,MQ |
| Dec 2024 | 608 | 109 | 3 | 0 | AA,AS,DL,F9,OO,WN |
| Nov 2024 | 579 | 88 | 0 | 0 | OO,MQ,WN,AS,DL,F9 |
| Oct 2024 | 597 | 60 | 0 | 0 | MQ,AS,OO,WN,DL,F9 |
| Sep 2024 | 569 | 108 | 1 | 0 | WN,OO,AS,DL,F9,MQ |
| Aug 2024 | 587 | 142 | 3 | 2 | AS,DL,F9,MQ,WN,OO |
| Jul 2024 | 613 | 190 | 10 | 1 | AA,AS,DL,F9,MQ,OO,WN |
| Jun 2024 | 594 | 148 | 1 | 1 | AA,AS,DL,F9,MQ,OO,WN |
| May 2024 | 609 | 120 | 1 | 2 | AS,DL,F9,MQ,OO,WN |
| Apr 2024 | 634 | 101 | 2 | 2 | AS,DL,F9,MQ,OO,WN |
| Mar 2024 | 670 | 96 | 1 | 0 | AS,DL,F9,MQ,OO,WN |
| Feb 2024 | 566 | 61 | 0 | 2 | AS,DL,F9,MQ,OO,WN |
| Jan 2024 | 535 | 110 | 35 | 1 | AA,AS,DL,F9,MQ,WN,OO |
Cancellation Rate
0.6%
90 of 14,522 flights
Diversion Rate
0.1%
18 of 14,522 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PHX - Phoenix
Full on-time, delay-cause, and seasonal performance for Phoenix, AZ.
Origin airport →SEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
Destination airport →Compare the two airports
See PHX and SEA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to PHX–SEA.
Routes with a similar on-time rate
What the Data Says About PHX to SEA
Bureau of Transportation Statistics records show Phoenix to Seattle (PHX to SEA) running a 84.3% on-time rate over 38,561 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 63.3 minutes. The 1,107-mile corridor is served by 43 carriers, and over the last 24 months 0.6% of 14,522 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 90% on-time, while Jul 2024 came in at just 69% - a 21-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.