Singapore Airlines operates at Newark Liberty International Airport (EWR) and provides a dedicated customer service phone number for passengers. To contact Singapore Airlines at Newark, you can reach their general customer service line in the U.S. at 1-800-742-3333. This number connects you to a representative who can assist with flight reservations, bookings, check-in, baggage inquir... https://askforairlines.com/singapore-airlines/singapore-airlines-newark-liberty-international-airport-ewr-terminal/