Airport profile SEA

SEA route loads

How full flights are at Seattle, using the latest 12 months of DOT T-100 data ending Mar 2026.

LATEST 12-MONTH WINDOW

SEA averages 82% full

Seattle (SEA) routes averaged 82% full across 50.8M passengers in the latest 12-month BTS window.

Load factor

82%

Passengers

50.8M

Routes

236

Biggest SEA routes

Route	Load	Passengers
PHX-SEA	84%	1.8M
DEN-SEA	88%	1.8M
LAX-SEA	78%	1.8M
ANC-SEA	79%	1.8M
LAS-SEA	83%	1.7M
SEA-SFO	82%	1.6M
ORD-SEA	87%	1.6M
DFW-SEA	89%	1.6M
SAN-SEA	82%	1.2M
SEA-SLC	82%	1.1M
HNL-SEA	83%	1.1M
ATL-SEA	88%	1.1M
GEG-SEA	77%	1.0M
PDX-SEA	79%	991k
MSP-SEA	86%	974k
SEA-SJC	78%	934k
JFK-SEA	88%	925k
SEA-SNA	84%	923k
SEA-SMF	78%	859k
BOS-SEA	88%	780k
SEA-TPE	80%	763k
BOI-SEA	77%	748k
DTW-SEA	89%	672k
EWR-SEA	89%	625k
IAH-SEA	86%	612k

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