MA 16, I-93 South (Exits 31 to 24B), Callahan Tunnel, Logan Airport

I-93: 4:06 Zakim Bridge to O'Neill/Big Dig Tunnel: 8:01 Callahan Tunnel: 8:57 Drive to Boston Logan International Airport via MA 16 east to I-93 south (exits 31 to 24B) to Callahan Tunnel/1A north. We start by joining MA 16 from Mystic Valley Parkway in Medford.