The busiest times for Gatwick to London are weekday rush hours, when the M23 and M25 carry commuter traffic alongside airport and local journeys. If you are travelling before 8am or after 5pm on a weekday, it pays to leave a little earlier; evenings, weekends and school holidays tend to move more freely. We plan the timing either way, so the fixed fare and the pickup time both hold.
On the day, your driver confirms the pickup point in advance so there is no last-minute searching, and for airport legs the flight is tracked so the car is ready whether you land early or late. Allow the usual airport routine either side of the drive itself: security and check-in on the way out, and passport control or baggage reclaim on the way in, both of which our free waiting allowance already covers.
A quick note on group size and luggage at booking saves any surprise on the day: a saloon is comfortable for four with two large cases, and an estate, MPV or 8-seater takes the extra bags, buggies or kit that a bigger trip brings. Since school holidays and summer tend to be busier for journeys like this, booking a little ahead makes securing the right vehicle straightforward.