The busiest times for Heathrow to Gatwick are weekday rush hours, when the M4, A4 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.
Your pickup point is confirmed ahead of time, removing any guesswork on the day, and flight tracking on airport journeys means the car adjusts to when you actually land rather than when the schedule says you should. The usual airport steps still apply either side of your drive — check-in and security, or passport control and baggage reclaim — and the included waiting time is there to cover them.
Telling us your group size and luggage at booking, rather than leaving it to the day, means the right vehicle is waiting: a saloon for up to four people and two large cases, or an estate, MPV or 8-seater for more bags, buggies or equipment. Journeys like this get busier in school holidays and summer, so booking ahead is the simplest way to secure the size of car you need.