Train
The Sounder goes from South of Seattle (Lakewood) to North of Seattle (Everett). This is a commuter train, so it only operates in the morning and afternoon, with the exception of game days. It's a good option if you are aren't staying in Seattle but want to see the city. The wedding is in Arlington, 23 miles north of Everett, the northernmost stop for the train.
Train
The light rail goes from just south of SeaTac airport (Angle Lake) to the University of Washington, in north Seattle. This includes a stop at the airport. The light rail runs from 5am to 1am everyday.
Flight
SeaTac airport is the closest airport- except Boeing field which is now open for commercial flights! The options are limited though.
Hotel
10.1 miles from wedding venue 2 Queen bed room: $103/night 1 King bed room: $94/night 1 Queen b3d room: $85/night
Hotel
10.7 miles from venue 2 Queen bed room: $149/night 1 King bed room: $149/night
Hotel
10.9 miles from venue 2 Queen bed room: $161/night 1 King bed room: $155/night
Hotel
15.3 miles from venue 2 Queen bed room: $339/night 1 King bed room: $339/night
Hotel
5.1 miles from venue Room block under Lewis/Ellsworth wedding 2 Queen bed room: $149/night 1 King bed room: $149/night