With just a wallet and clothes, he'll soon need to spend via card. When he does, you've found him. Just monitor his recent transactions. Especially watch for hotel purchases.

If no purchases are made, then know there's been no flight... Unless there's another person involved.

With just a wallet and clothes, he'll soon need to spend via card. When he does, you've found him. Just monitor his recent transactions. Especially watch for hotel purchases.

If no purchases are made, then know there's been no flight. Additionally, if there continues to be no purchase then it's likely there's another person involved.