>>>Do you mean "it leaves Newark in the afternoon" or "it leaves London in the afternoon" when you say afternoon flight?<<<
Look at your Topic Header - or do you want something else?
I have given you the details of VS001.
I can't find a VS018, but VS3019/CO019 to Newark is the afternoon flight that I also mentioned, departing 1400.
If you have a flight on hold, I would imagine you have at least some knowledge of the departure time - and, dare I mention it, the departure airport.
FYI - VS departs LHR, and CO leaves from LGW.
Per Ardua ad Astra! ........ Honi Soit Qui Mal y Pense!