$2.75 gets you from SeaTac Main to Southcenter on Route 156
King County Metro Route 156 runs from SeaTac Main terminal to Southcenter Mall and Tukwila neighborhoods in about 20–35 minutes, with the trade-off that it winds through local streets instead of jumping on I‑5. This is the bus airport employees and nearby residents use when every dollar matters more than speed, not the fastest choice for first-time visitors. One r/SeattleTransit rider summed it up as fine for employees or friends nearby but too meandering for tourists.
The stop you want is at SeaTac on International Blvd, a short signed walk from the Main terminal and Link station, and the adult fare is a flat $2.75 with ORCA or cash. Weekday service runs roughly every 30 minutes, with headways stretching out in the evenings and on weekends, and there is no late-night service after about midnight depending on the day. A r/Seattle commenter called it “slow as molasses” compared with Uber or Link when heading to Southcenter.
Expect the 156 to weave through Tukwila side streets for a good chunk of the ride, which is why 20 minutes can quickly become 35 if you catch a stop-heavy trip. Transit nerds point out that the map makes it look more direct than it feels at street level, because it serves several residential loops before reaching Southcenter. That looping is also why missing one bus can hurt: several Reddit posts flag that, unlike the more frequent RapidRide A Line, gaps can feel long, especially on Sunday evenings.
Regulars often walk a few blocks to a RapidRide A Line stop, then transfer to the 156 further along the route to skip some of the slowest local segments. Some airport workers even plan their shifts around specific 156 trips and keep screenshots of the timetable because frequency drops hard after about 8–9 p.m. Both tactics aim to avoid standing 25–30 minutes at a pole on International Blvd after a long day.
How to ride it from SeaTac, step by step:
- 1. From baggage claim in the Main terminal, follow signs to Link light rail, then out toward International Blvd (about a 5–8 minute walk).
- 2. Find the posted King County Metro stop for Route 156 on International Blvd; check the stop ID and next-trip time on your phone or the sign.
- 3. Have $2.75 ready in cash (exact change) or tap an ORCA card when boarding through the front door.
- 4. Tell the driver “Southcenter” or your cross street in Tukwila if you’re unsure where to get off, and watch the stop display as you ride.
- 5. Exit at Southcenter Mall or your neighborhood stop, then walk the last block or two; if you’re transferring to the A Line, line up your departure time in the Metro app so you’re not standing around.
Tip: if your flight lands after 10 p.m., check the schedule before you commit; a $2.75 fare is nice, but missing the last 156 can turn into a surprise rideshare bill.