Paris Charles de Gaulle airport offers the cheapest routes to Bangkok, from ฿14,473; whereas Lyon-Saint Exupéry airport is typically cheaper if you're flying to Bangkok, from ฿19,511. 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 France:
Fly from Paris to Nur-Sultan from ฿14,473
Fly from Paris to Bangkok from ฿18,772
Fly from Nice to Phuket City from ฿22,197
Fly from Paris to Chiang Mai from ฿22,600
Fly from Paris to Krabi from ฿23,708