My wife and I are flying into Narita Airport, Japan, on a United Airlines flight arriving at 3:30 pm from San Francisco. We're supposed to catch an Air Japan flight at 4:45 pm to Ho Chi Minh City, Vietnam.
According to Narita's website, both airlines are supposed to operate from Terminal 1 South Wing (International). I understand that Narita is huge and very busy, and I have never been there.
I don't know if it matters, but I am American and my wife is not.
Is this doable, or should I try to find a later flight out of Narita?