We had our US based
ABD guide, Chris, and then we had a local Vietnamese-born guide, Tony, that followed to all 3 countries. We had 25ish in our group (can't remember exactly). The internal flights are always as painless as possible with ABD! They tell you what time to have your luggage outside of your room in the morning, they pick it up, and usually you just see it in your next hotel room. Sometimes you have to grab it at the airport depending on the itenerary, and then ABD loads it on a cart right there at the luggage claim. As far as flight logistics, we all arrive at the airport together, ABD handles all the passports/boarding passes and once everythign is squared away they pass them out to us. We go through security and sometimes have access to the VIP lounges through ABD. ABD assigns the seats, but our family of 3 is usually together, or it's 2 together and 1 apart depending on the layout of the aircraft. Once you arrive, you just meet everyone at the exit of the plane and the guides take it from there