Note that if you’re arriving late Friday night, your trip will be affected by a weekend closure of the SR 520 floating bridge across Lake Washington, which begins at 11pm, ending 5am Sunday.
By the way, some map searches have been giving me a generic “Redmond” when I ask for “Redmond Town Center” or “Redmond Marriott Town Center”. What that defaults to is quite close to us, luckily.
A Taxi will run $70-80.
David Levine reports some good experiences with Aces For Hire town car service, 206-518-8411. Shuttle Express also has town cars/limos for 2 to 8 people that can be arranged in advance. They quoted David $45 for one person (round trip $80), or $51 for two (RT $92).
EastSide Town Car and Limousine charges a flat $fee per car from SeaTac to Redmond destinations. Call 206-853-6146 or see EastsideTowncars.com. On the web they say $55, on the phone $66. (Note that EastsideTowncar.com is someone else.)
Shuttle Express runs scheduled hourly service to its partner hotel the Redmond Inn for $22 per person. This puts you just over a mile away from the Marriott, so it might be right if you love to walk or can call on someone to pick you up. Call 425-981-7000 or see ShuttleExpress.com for more info, optional inbound reservations, mandatory outbound reservations.
Public transit costs $5.25 per person. 50 to 100 minutes depending on time of day. SoundTransit’s LINK light rail train runs between the airport and downtown; then walk about a block to transfer to bus #545 Redmond.
The airport light rail station is a bit of a schlep. It connects to the 4th floor of the main parking garage, which seems to be at the terminal’s Skybridge level. Look for Skybridge 6? (See their map.) Buy a $2.75 ticket before boarding. This is the terminus, so all trains are northbound.
International District, Pioneer Square, and Westlake stops all offer nearby transfers to the #545 bus, up at street level. (ID: 4th and Jackson. Pioneer Square: 4th & James. Westlake: 4th & Pike.) Pay $2.50 cash fare on boarding. Eez nize buss. Get off at 166th Avenue in Redmond, the first stop after the Redmond Transit Center. Walk south on 166th, west on 76th, then south on 164th to the hotel (about 1/3 mi. in all).