Considering Specific Days Between Two Dates

Ryukatan10 
Here is a sample file with the solution https://www.dropbox.com/t/08giOHP4Wl2Oy6Q7

You need first to unpivote the weekday columns in the flights table:

Rename the "Value" column

Delete the "Attribute" column 

Filter out Zero values

Create the relationship with the Date table (Make sure the Weekday numbering system is the same in both tables). In your real data the relationship will be Many to Many

Create the table visual (Flight > from Flights table and Date > from Date table)

Create the Filter measure that will filter only the existing Dates between "Begining" and "End"

Flight Dates = 
COUNTROWS ( 
    FILTER (  
        'Date',
        'Date'[Date] >= MAX( Flights[Begin Operation] )
            && 'Date'[Date] <= MAX ( Flights[End Operation] )
    )
)

Place the measure in the Filter Pane and select "Is not blank" then apply