FLORHAM PARK, N.J. — After landing at Heathrow Airport early Friday morning, the New York Jets will disembark and make a left toward customs, where six lines will be devoted to their delegation of 220 people. To safeguard against any mishaps later, passports will be collected after everyone clears, and then a brigade of Virgin Atlantic representatives will escort the Jets to seven buses waiting outside.

This will be the procedure because Aaron Degerness, the Jets’ senior manager of team operations, walked this route in June, when he made his second scouting trip to London in advance of their game Sunday against the Miami Dolphins at Wembley Stadium.

Degerness learned which gate the plane would pull into, which door the team would exit and where the jet bridge would deposit the group. He also learned that when the Jets flew home, their walkway would meander past duty-free shops, and that worries him, if only a little.

“It’s hard to tell the guys: ‘Don’t stop. Just keep walking,’ ” Degerness said. “Those are the things that keep us up at night — that we get through security, someone stops at duty free, and we leave Ryan Fitzpatrick because we didn’t know he wasn’t there.”