Yes, it is significantly cheaper to use an Opal card (or a linked contactless credit/debit card/phone) in Sydney than purchasing single trip tickets. As of 2026, the Opal system provides several financial benefits that are not available with paper tickets. These include the Opal Transfer Discount, which deducts $2.00 ($1.00 for concessions) for every transfer between different modes of transport (e.g., switching from a train to a bus) within a 60-minute window. Additionally, there is a Weekly Travel Cap, ensuring you never pay more than $50 per week for unlimited travel across the entire network. On Fridays, Saturdays, Sundays, and public holidays, the daily cap is reduced even further to just $9.65 for adults. Furthermore, if you travel during "Off-Peak" hours, you receive a 30% discount on train, bus, and light rail fares. Using an Opal card also allows for "Daily Travel Caps," meaning once you hit a certain spending limit (currently around $19.30 on weekdays), all subsequent travel for that day is free.