It changes. Unless you've made it a point to build a local client book, you'll still travel 3-4 days/week. Even with locally headquartered clients, you'll likely be travel to their other sites. The difference is that you might hit 2-3 cities in a week, instead of 1. If you travel directly between them, that means more travel with the same amount of time at home. Many of the Partners I know go home at least once midweek, which means far more time in transit, but more time at home.
Patterns observed during my internship:
Analysts/associate/consultants - To client Monday morning, back on Wednesday or Thursday afternoon.
CTL/Project leaders/engagement managers - Generally the same with an occasional Tuesday arrival or Tuesday/Wednesday departure to allow for a practice area meeting or proposal work.
Principal - Similar to above or splitting time between 2 projects. I.e. M-T and client 1 and W-Th are client 2 or in the office for ramp up.
Junior partners - Time split between 2 clients and office for business development or partner meetings. Maybe M at client 1, T in office, and W-Th at client 2 w/ project in full swing.
Senior partner - At least 3 clients per week, even to some without current projects. M client 1 with direct flight to client 2 in the evening for T-W, home for W night, client 3 daytrip on Thurs. "Extra" night at home in exchange for 1 additional flight.
"Flight" could also mean quick drive to local client or long drive to regional client.
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