Was a fun exercise.

Fukuoka, Japan (FUK) - Only into (Shinkansen out)
Nagoya, Japan (NGO) - Only into (Shinkansen out)
Sapporo (Okadama), Japan (SPK) - Only into (Bus/Train to Shin Chitose (CTS))
John Wayne, Orange County CA (SNA) - Only into, (Drove to LAX for return)
Kansai International, Japan (KIX) - Only out of, (train from Kyoto)
Charlotte, NC (CLT) - Transfer only (BOS-CLT-AUS)
Cleveland, OH (CLE) - Transfer only (BOS-CLE-DAY)
Detroit, MI (DTW) - Transfer only (ALB-DTW-NRT, NRT-DTW-ALB)
Newark, NJ (EWR) - Transfer only (SYR-EWR-NRT, NRT-EWR-SYR)
Montreal, QC (YUL) - Transfer only (PHL-YUL-YQB, YQB-YUL-PHL)