Route
SEA → PHX
Seattle–Tacoma International Airport Phoenix Sky Harbor International Airport
How punctual is this route?
- On-time arrivals
- 78.2%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 7,205
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 43%
- Late-arriving aircraft 36%
- Air traffic control & airport 19%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 84.2% | 545 |
| October 2025 | 79.5% | 599 |
| November 2025 | 70.9% | 596 |
| December 2025 | 72.2% | 628 |
| January 2026 | 82.6% | 586 |
| February 2026 | 85.8% | 565 |
| March 2026 | 80.2% | 686 |
| April 2026 | 85.8% | 665 |
| May 2026 | 82.7% | 623 |
| June 2026 | 77.5% | 569 |
| July 2026 | 67.1% | 578 |
| August 2026 | 68.8% | 565 |
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 | 2,889 | 79.2% | 0.7% | 50 min |
| Delta Air Lines | 1,768 | 80.9% | 1.0% | 72 min |
| Southwest Airlines | 1,042 | 65.1% | 0.8% | 54 min |
| Envoy Air | 760 | 85.3% | 0.0% | 81 min |
| SkyWest Airlines | 409 | 78.5% | 0.5% | 83 min |
| American Airlines | 221 | 83.2% | 0.5% | 80 min |
| Frontier Airlines | 116 | 74.5% | 5.2% | 152 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL2419
10% late · 365 flights
-
AS700
22% late · 356 flights
-
DL2698
26% late · 348 flights
-
AS744
25% late · 333 flights
-
AS632
26% late · 323 flights
-
DL2442
20% late · 314 flights
-
DL2447
21% late · 312 flights
-
AS606
13% late · 296 flights
-
DL2449
21% late · 250 flights
-
AS449
17% late · 239 flights
-
AS604
14% late · 209 flights
-
AS417
24% late · 203 flights
-
AS644
30% late · 198 flights
-
OO5004
24% late · 152 flights
-
AS1433
23% late · 111 flights
-
DL1155
19% late · 109 flights
-
MQ4291
14% late · 100 flights
-
AS608
20% late · 91 flights
-
AS1422
15% late · 90 flights
-
MQ3792
4% late · 76 flights
-
MQ3440
29% late · 75 flights
-
MQ3793
20% late · 75 flights
-
AA3235
11% late · 71 flights
-
F91724
22% late · 71 flights
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