There are now six security checkpoints at the airport, though only four of them are in operation. The re-numbering is needed ...

Each of the current checkpoints at Seattle-Tacoma International Airport will be renumbered Thursday, April 17. Here's a guide ...

What To Know Due to ongoing construction at SeaTac Airport and the closure of Checkpoint 5, spots do fill up quickly. SEA Spot Saver is not available at Checkpoint A (general screening only ...