Heathrow to Gatwick is about 25 miles, almost entirely on the M25, usually taking 45 to 60 minutes — though the M25 around this stretch can slow considerably at peak times, which is exactly the kind of thing a fixed fare protects you from. It's one of the most common airport-to-airport transfers in the country, and one we run constantly.
We track your inbound Heathrow flight so your pickup time reflects when you actually land, not an optimistic best case. If your connecting flight from Gatwick is on a tight schedule, let us know when booking and we'll build in the time you need rather than cutting it close.
Why book with Signature Taxis Heathrow
The UK's busiest airport link
A route we run constantly, with drivers who know the fastest M25 timing.
Both flights considered
Inbound Heathrow landing tracked, outbound Gatwick departure factored into pickup timing.
Fixed M25 fare
One agreed price whatever the M25's traffic is doing that day.
24/7 availability
Early or late connections covered at any hour.
Frequently asked questions
How much time should I allow between Heathrow and Gatwick?
With a 45–60 minute drive plus Gatwick check-in, most passengers allow at least 3 hours between landing and departure — tell us your exact timings and we'll advise.
Is the M25 usually busy on this route?
It can be, particularly around the Heathrow spur and the M23 interchange near Gatwick — your fixed fare doesn't change either way.
Can I book this transfer for a large group?
Yes — our MPV and minibus options are well suited to this route for groups with luggage.