Unbelievably poor selection of shops etc. Do yourself a favor and do not make any last minute purchases at SeaTac, but rather leave early and go to the mall nearby in Southcenter.
Jet Blue-When they mean no boarding 15min to departure time they are not kidding,10min late, ramp still attached to plane.Wouldn't let me and my children on.Xtra $100 person will get on next flight:(
American Airlines mobile phone boarding ticket won't work! Couldn't pass security the officer tried to read my barcode from the iPhone but no success. had to go all the way back to check in!
Avoid having to go through a rapiscan or pat down by going through the far right security (by gate D). Then take the leftmost lane. It's the only lane in the airport without a porno scanner.
Even if you check in online, United bag check-in for early AM flights is a disastrous experience. Avoid at all costs, or at least leave yourself a good hour to stand in line. Ridic understaffed.