As of my last knowledge update in January 2023, several international airlines operate flights to Indonesia. Keep in mind that airline routes and schedules can change, so it's advisable to check with airlines or travel agencies for the most up-to-date information. Some major international airlines serving Indonesia include:
1. Garuda Indonesia: The national airline of Indonesia, operating flights to and from various international destinations.
2. Singapore Airlines: Connecting Indonesia with its hub in Singapore, providing access to a global network.
3. Emirates: Offering flights to Indonesia with connections through its hub in Dubai.
4. Qatar Airways: Serving multiple cities in Indonesia with connections through its hub in Doha.
5. Cathay Pacific: Connecting Indonesia with its hub in Hong Kong, providing access to destinations worldwide.
6. Etihad Airways: Offering flights to Indonesia with connections through its hub in Abu Dhabi.
7. AirAsia: A low-cost carrier that operates flights to various destinations within Indonesia and other Southeast Asian countries.
8. Thai Airways: Connecting Indonesia with its hub in Bangkok and offering onward connections.
9. Malaysia Airlines: Serving Indonesia with flights connecting through Kuala Lumpur.
10. KLM Royal Dutch Airlines: Providing flights to Indonesia with connections through its hub in Amsterdam.
11. Lufthansa: Connecting Indonesia with its hub in Frankfurt, offering access to destinations in Europe and beyond.
Always check the latest travel advisories, entry requirements, and flight schedules before planning your trip, as these details can change, especially considering the evolving nature of global travel conditions.