Google the reqirements of your travel companions Passport
Aug 9 at 7:58 PM
I have some knowledge of this, as I'm a Canadian that travels to Thailand and Vietnam from time to time. My wife is from Thailand. Even with her PR Card she cannot enter the USA without a VISA. So when we fly back to Thailand I have to be certain the connecting flight doesn't stop in the USA which isn't hard to do.
On the otherside of that is the fact that I need a VISA to go to Vietnam, and she doesn't. As far as Thailand goes a Canadian can travel to Thailand for up to 30 days on your Canadian Passport, any long you need a VISA.
Do a search online for the contry your travel partner is from and see if where your contecting flights are going if that will be an issue. Another great resource is
https://apply.joinsherpa.com/
Good luck and travel safe.