USA TODAY System outages in the wake of a potential cyberattack continue to affect Seattle-Tacoma International Airport, commonly known as SeaTac, inconveniencing flyers for a third day. Airport spokesperson Perry Cooper told USA TODAY Monday evening that there is still no timeline for a full restoration of the affected systems. "We are doing what we can to mitigate the impact to passengers and airline partners," Aviation Managing Director Lance Lyttle said at a Sunday press conference. Customs and Border Protection and Transportation Security Administration officials said at the press conference that their systems were not affected by the potential cyberattack. Cooper said that the primary customer facing systems impacted by the outages were flight information displays and baggage movement and information systems. The airport posted on X, formerly Twitter, about the potential attack shortly after 9 a.m. PT Saturday and said that it had "isolated critical systems" Lyttle said that multiple systems remained offline, including email. The airport's website remained offline as of 2:30 p.m. PT Monday.