PlainFlights
SEA

Seattle, WA

Seattle, Washington

Data coverage: 2020 — 2024

Total Flights

1,541,486

On-Time Rate

84%

Avg Delay

63.7 min

Delayed

246,421

Cancelled

12,372

Delay Causes

Top delay cause: Carrier

Late Aircraft 27.8%
Carrier 45.4%
NAS (National Aviation System) 20.2%
Weather 6.4%
Security 0.3%

Monthly Performance

Recent 24 months of flight data.

Period Flights Dep Delayed Arr Delayed Cancelled Diverted
Dec 2024 25,185 2,557 2,250 63 37
Nov 2024 24,904 1,671 1,646 46 9
Oct 2024 27,519 1,950 1,797 53 23
Sep 2024 29,615 2,749 2,687 48 20
Aug 2024 31,967 3,882 3,766 128 44
Jul 2024 32,398 3,974 4,001 272 36
Jun 2024 30,369 4,058 4,056 70 33
May 2024 28,671 3,286 3,211 70 30
Apr 2024 25,842 2,432 2,147 25 13
Mar 2024 25,254 2,427 2,078 40 30
Feb 2024 22,199 1,506 1,360 33 20
Jan 2024 23,508 2,809 2,427 965 97
Dec 2023 25,462 2,044 1,707 68 34
Nov 2023 26,223 1,999 1,818 21 26
Oct 2023 28,622 1,882 1,854 15 22
Sep 2023 30,098 2,564 2,350 53 24
Aug 2023 31,942 3,014 2,825 61 52
Jul 2023 31,338 3,603 3,409 94 52
Jun 2023 29,348 3,123 2,893 102 38
May 2023 27,564 1,956 1,754 40 25
Apr 2023 25,638 2,241 2,233 130 33
Mar 2023 25,563 2,249 2,167 97 35
Feb 2023 22,052 1,911 1,941 211 17
Jan 2023 23,748 1,919 1,898 94 27

Top Routes

Busiest routes to and from SEA.

Route Flights On-Time Distance
SEA (Seattle) → LAX (Los Angeles) 34,465 84.2% 954 mi
LAX (Los Angeles) → SEA (Seattle) 34,423 86.5% 954 mi
SEA (Seattle) → ANC (Anchorage) 34,264 78.2% 1,448 mi
ANC (Anchorage) → SEA (Seattle) 34,187 86.1% 1,448 mi
PHX (Phoenix) → SEA (Seattle) 31,200 85% 1,107 mi
SEA (Seattle) → PHX (Phoenix) 31,190 83.1% 1,107 mi
PDX (Portland) → SEA (Seattle) 31,118 88.4% 129 mi
SEA (Seattle) → PDX (Portland) 30,787 84.1% 129 mi
SFO (San Francisco) → SEA (Seattle) 30,750 83.5% 679 mi
SEA (Seattle) → SFO (San Francisco) 30,728 80.2% 679 mi
DEN (Denver) → SEA (Seattle) 30,725 79.1% 1,024 mi
SEA (Seattle) → DEN (Denver) 30,713 82.3% 1,024 mi
LAS (Las Vegas) → SEA (Seattle) 30,302 81.7% 867 mi
SEA (Seattle) → LAS (Las Vegas) 30,278 81% 867 mi
GEG (Spokane) → SEA (Seattle) 26,462 87.4% 224 mi
SEA (Seattle) → GEG (Spokane) 26,364 84.2% 224 mi
ORD (Chicago) → SEA (Seattle) 22,505 81.8% 1,721 mi
SEA (Seattle) → ORD (Chicago) 22,500 83.7% 1,721 mi
SEA (Seattle) → SJC (San Jose) 21,892 85.8% 696 mi
SJC (San Jose) → SEA (Seattle) 21,871 87% 696 mi
Data Source: Bureau of Transportation Statistics, On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.