Spirit Airlines does not currently have an office in Singapore. As a budget carrier primarily operating in the U.S. and select international destinations, Spirit Airlines Singapore Office offers customer service through its website, mobile app, and regional contact centers. For assistance with bookings, cancellations, or any inquiries, passengers can visit the Spirit Airlines website or contact the airline's customer service team directly. If you're in Singapore and need help with a Spirit Airlines flight, consider reaching out to their customer support via online channels or calling their global service numbers for assistance.