Difference between two flight arrival & departure

rkalantan ,

If this is what you're trying to achieve, you can try the next approach:

Create an Index column in Power Query:

Create a measure:

time_diff = 
VAR a_time = MAX ( 'Table'[Arvl Time] )
VAR b_time =
    CALCULATE (
        MIN ( 'Table'[Dept Time] ),
        FILTER ( ALL ( 'Table' ), 'Table'[Index] > SELECTEDVALUE ( 'Table'[Index] ) )
    )
VAR diff = DATEDIFF ( a_time, b_time, MINUTE )
RETURN
    RIGHT ( "0" & INT ( diff / 60 ), 2 ) & ":"
        & RIGHT ( "0" & INT ( MOD ( diff, 60 ) ), 2 )

If this post helps, then please consider Accept it as the solution ✔️to help the other members find it more quickly.

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