Originally Posted by
CPH-Flyer
With checked luggage yes, it will likely be an issue. Without checked baggage it will work fine. People travel on separate tickets on separate airlines with no issues. As long as they don't try have checked luggage across alliances or across non partner airlines.
Thank you! It is good to know about this. If I don't have any checked bags, I will have no problem board the BKK-HND flight. Do I have to provide HND-IAD flight ticket when check-in at BKK?