Train from Gatwick to Charing Cross. Travelling approx 4:00 pm on a weekday. Best route appears to be Thameslink to London Bridge, change to Southeastern to Charing Cross.
Questions.
1. Is 4:00 on a weekday considered peak for a journey into London? Some sources say just 6:30-9:30, others say 4:00-6:00 also.
2. Which is cheaper, Oyster/contactless or paper ticket? Some sources say it makes a difference depending on whether the journey is peak or off-peak?
3. Assuming I am correct that it is all one ticket or one tap/tap. I don't tap out at London Bridge and tap back in again. Correct?
I've tried to research this myself, but am getting tons of contradictory information.