Singapore Airlines’ Athens operations are managed by its GSA, Asian Aviation, located at 501 Vouliagmenis Avenue, Ilioupolis. Open Monday–Friday, 9:00 a.m.–5:00 p.m., they can be reached at +1-866-829-1086. Athens International Airport handles check-in only; for 24/7 ticketing support, visit the Singapore Airlines website. Jauntlet.comhttps://jauntlet.com/