Route
PHX → SEA
Phoenix Sky Harbor International Airport Seattle–Tacoma International Airport
How punctual is this route?
- On-time arrivals
- 82.2%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 7,202
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 47%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 16%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 84.6% | 544 |
| October 2025 | 80.4% | 600 |
| November 2025 | 80.8% | 594 |
| December 2025 | 77.2% | 627 |
| January 2026 | 85.3% | 586 |
| February 2026 | 90.3% | 568 |
| March 2026 | 80.1% | 685 |
| April 2026 | 87.7% | 667 |
| May 2026 | 86.2% | 623 |
| June 2026 | 77.6% | 570 |
| July 2026 | 78.5% | 578 |
| August 2026 | 76.9% | 560 |
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 | 2,886 | 84.4% | 0.8% | 63 min |
| Delta Air Lines | 1,767 | 87.5% | 1.0% | 79 min |
| Southwest Airlines | 1,039 | 62.2% | 0.8% | 49 min |
| Envoy Air | 761 | 87.6% | 0.0% | 57 min |
| SkyWest Airlines | 409 | 83.0% | 0.5% | 70 min |
| American Airlines | 224 | 82.5% | 0.4% | 70 min |
| Frontier Airlines | 116 | 83.6% | 0.0% | 90 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL2419
7% late · 365 flights
-
AS637
16% late · 364 flights
-
AS603
13% late · 347 flights
-
AS645
15% late · 330 flights
-
AS611
19% late · 327 flights
-
DL2444
6% late · 296 flights
-
DL2449
17% late · 245 flights
-
AS605
7% late · 239 flights
-
AS401
13% late · 232 flights
-
AS458
13% late · 225 flights
-
DL2447
22% late · 188 flights
-
DL2442
18% late · 181 flights
-
DL2374
11% late · 177 flights
-
OO5004
15% late · 156 flights
-
AS799
17% late · 149 flights
-
AS1423
8% late · 118 flights
-
AS609
17% late · 115 flights
-
F91723
17% late · 114 flights
-
MQ4291
7% late · 110 flights
-
DL1155
18% late · 109 flights
-
DL1406
12% late · 101 flights
-
MQ4307
17% late · 101 flights
-
MQ3793
13% late · 76 flights
-
MQ3440
15% late · 75 flights
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