Bangkok Suvarnabhumi airport offers the cheapest routes to Amsterdam, from ฿437; whereas Phuket City airport is typically cheaper if you're flying to Bangkok, from ฿672. It's best to make sure you are flexible on dates to find the cheapest possible flight options for your journey.
Here are some of the cheapest flight destinations from Lombok:
Fly from Bangkok to Surat Thani from ฿437
Fly from Bangkok to Phuket City from ฿638
Fly from Phuket City to Bangkok from ฿672
Fly from Bangkok to Khon Kaen from ฿1,075
Fly from Bangkok to Chiang Mai from ฿1,108