When we toured and interviewed at boarding schools, it took some elaborate planning.
I am posting the itineraries I created in case these might be useful for other families.
I am not sure what is appropriate format so will try a few ways.
Trip A2
Date Time Where What
October Day 1   3:00 PM     Drive to airport
Wednesday   5:30 PM Southwest   Home to BOS Boston
11:30 PM    Alamo   Rent Car
Newton, MA  Crown Plaza Hotel
October Day 2           Drive to Southborough, MA
Thursday    9:30 AM A School    Tour
10:30 AM    Southborough, MA    Interview
12:00 PM        Drive to Gill, MA   Lunch on the way
1:45 PM B School    Tour
2:45 PM Gill, MA    Interview
Drive to Deerfield, MA
4:40 PM C Academy   Visit/Walk by C Academy
Drive to Andover, MA
Andover, MA Andover Inn Dinner
October Day 3   10:05 AM    D Academy   Tour
Friday  11:05 AM    Andover, MA Interview
12:30 PM        Leave Andover   Lunch on the way
Drive to Exeter, NH
1:40 PM E Academy   Tour
2:40 PM Exeter, NH  Interview
Drive to Concord, NH
Concord, NH Holiday Inn Dinner
October Day 4   9:15 AM F School    Tour
Saturday    10:15 AM    Concord, NH Interview
Drive to Groton, MA
G School    Visit/Walk by G school
    Boston, MA  Hampton Suites  
        Return Rental Car   
October Day 5   5:30 AM     Leave for Airport
Sunday  7:00 AM JetBlue BOS Boston to Home
Drive home
Trip A1
Date Time Where What
September Day1  3:00 PM     Drive to airport
Wednesday   5:30 PM Southwest   Home to BDL Hartford
Hertz   Rent Car    Drop off LGA Day 4
Farmington, CT  Courtyard Marriott Hotel
September Day2          Drive to Watertown, CT  Review  viewbook and Qns
Thursday    10:05 AM    A School    Tour A School
11:05 AM    Watertown, CT   Interview
12:30 PM        Lunch
1:15 PM     Drive to Wallington, CT
2:30 PM B School    Tour B School   Review  viewbook and Qns
3:30 PM Wallington, CT  Interview
5:00 PM C School    Drive to Windsor, CT    Drive by C School
        Dinner  
        Drive to Newton, NJ 
    Newton, NJ  Holiday Inn Express 
September Day3  9:30 AM D Academy   Tour D Academy  Review Blair viewbook and Qns
Friday  10:30 AM    Blairstown, NJ  Interview   Notetaking
11:30 AM        Leave Blairstown    Lunch on the way
Drive to Pottstown
1:30 PM E School    Tour
2:30 PM Pottstown, PA   Interview   Notetaking
3:30 PM     Leave Pottstown
        Dinner  
    Princeton, NJ   DoubleTree by HIlton    
    F, G School     Visit/Drive by F,G School
September Day4  1:00 PM NYC     Drop off Rental Car at LGA
Saturday
    New York, NY    Radisson Lexington Hotel    
September Day5  3:00 PM     Leave for Airport
Sunday  5:30 PM Frontier    LGA New York - Home
Drive home
For that application cycle A, we took two trips during public school in service days, interviewed at 9 schools, visited and walked by a few more, applied to all interviewed at, and was accepted at 2 schools and waitlested at 2.
We also did sidetrips visiting NYC and Boston.