Every previous trip I've gone through immigration at the airport I landed at. And leaving I've gone through at BKK. This time leaving I went through immigration at Chiang Rai even though I connected at BKK... And my bags were checked all the way through where previously I've had to collect and recheck in BKK. Now, returning, my bags are checked all the way to Chiang Rai. Do you think I will do immigration in BKK or CR?
TLDR : Answer Summary
The user is inquiring whether they will go through immigration at Bangkok or Chiang Rai on their return flight. Previous experiences suggest that immigration is typically done at the first entry point into a country, and since they are flying on a single international ticket, it's likely they will complete immigration formalities at Chiang Rai after arriving from Bangkok. Comments from other users provide insights based on their experiences with similar travel routes, indicating that travelers often clear immigration in the city where they first land.