Route
SEA → ANC
Seattle–Tacoma International Airport Ted Stevens Anchorage International Airport
How punctual is this route?
- On-time arrivals
- 76.5%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 56 min
- Flights arriving 15+ minutes late
- Flights tracked
- 6,619
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 49%
- Late-arriving aircraft 29%
- Air traffic control & airport 19%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 88.4% | 624 |
| October 2025 | 76.7% | 553 |
| November 2025 | 84.9% | 483 |
| December 2025 | 54.6% | 478 |
| January 2026 | 75.5% | 478 |
| February 2026 | 79.7% | 414 |
| March 2026 | 66.8% | 478 |
| April 2026 | 84.1% | 452 |
| May 2026 | 79.2% | 587 |
| June 2026 | 76.0% | 665 |
| July 2026 | 75.2% | 721 |
| August 2026 | 75.0% | 686 |
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 | 4,999 | 76.3% | 0.7% | 53 min |
| Delta Air Lines | 1,609 | 77.5% | 0.6% | 68 min |
| Hawaiian Airlines | 11 | 54.5% | 0.0% | 35 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL922
21% late · 365 flights
-
DL928
27% late · 364 flights
-
DL936
27% late · 348 flights
-
AS99
25% late · 317 flights
-
AS83
30% late · 297 flights
-
AS189
22% late · 213 flights
-
DL931
23% late · 212 flights
-
AS225
25% late · 210 flights
-
AS136
29% late · 189 flights
-
AS144
23% late · 171 flights
-
AS79
9% late · 170 flights
-
AS85
13% late · 168 flights
-
AS247
22% late · 154 flights
-
AS78
24% late · 153 flights
-
AS93
37% late · 144 flights
-
AS228
22% late · 142 flights
-
AS105
26% late · 135 flights
-
AS149
23% late · 125 flights
-
DL2367
20% late · 117 flights
-
DL2768
7% late · 117 flights
-
AS59
18% late · 111 flights
-
AS131
21% late · 109 flights
-
AS77
22% late · 102 flights
-
DL1549
14% late · 86 flights
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