Power Query M - The Fill Down Hierarchies Challenge

/*
    Created By: Alex Powers
    Website: http://www.itsnotaboutthecell.com
    LinkedIn: https://www.linkedin.com/in/alexmpowers/
    Contact: [email protected]
*/

let
    Source = Web.Page(Web.Contents("https://www.bangkokairportonline.com/flight-status-departures/?fbclid=IwAR1_9FMoBsSaHPLitEdi0rwCSsBGqt0lGFMiPcw3RpXc0IM6NuKi_hoENsA")){0}[Data],
    #"Extract Number From Status" = Table.AddColumn(Source, "Status_b", each try Number.From(Text.Remove([Status], {" ", "-", "A".."z"})) otherwise null, type number),
    #"Split Column: ( and )" = Table.SplitColumn(#"Extract Number From Status", "To", Splitter.SplitTextByEachDelimiter({"(",")"}, QuoteStyle.Csv, false), {"City", "City Code"}),
    #"Changed Type" = Table.TransformColumnTypes(#"Split Column: ( and )",{{"Scheduled", type time}, {"Revised", type time}, {"Flight", type text}, {"Status", type text}})
in
    #"Changed Type"