Singapore Airlines' UK legal/corporate office is at Building 4, Chiswick Park, 566 Chiswick High Road, London W4 5YE, but this location handles legal/admin and not bookings for bookings/support, use their Contact Centre at +1-866-829-1086 (24/7) or visit their check-in counters at Heathrow Terminal 2 or Gatwick North Terminal. Jauntlet.comhttps://jauntlet.com/