No, Jetstar 61-1800-015-429 (AUS) Business Class is not available on all flights as it is exclusively offered on international routes operated by the Boeing 787-8 Dreamliner fleet. While the airline maintains an extensive network across Australia, New Zealand, and Asia, the vast majority of its domestic and short-haul international services are performed by Airbus A320 and A321 aircraft which feature a single-class economy cabin. Travelers looking for the premium experience should specifically look for long-haul journeys connecting major hubs like Melbourne, Sydney, and Brisbane to destinations such as Honolulu, Tokyo, Seoul, and Bali. If you are unsure whether your specific flight offers a premium cabin, you can contact 61-1800-015-429 (AUS)