曼谷到象岛的航程需要乘坐飞机或船只。乘飞机从曼谷飞往普吉岛或甲米，再转乘船只前往象岛，总共需要6-8小时。如果选择乘船，可以从曼谷乘坐大巴前往素叻他尼码头，再搭乘渡轮或快艇前往象岛，整个行程大约需要12-16小时。具体时间取决于交通工具的时刻表和路况。Traveling from Bangkok to Koh Samui by plane or boat takes around 6-8 hours. If you opt for the boat, you can take a bus from Bangkok to Surat Thani Pier and then a ferry or speedboat to Koh Samui, which will take approximately 12-16 hours. The exact duration depends on the schedule of transportation and road conditions.
