London City Airport
Little London City Airport is actually in London—but few airlines use it.
How to get between London City Airport and central London
By DLR (public transit train): £3.30–£4.90 ($4.85–$7.20); 22 min.
London City Airport is on the Woolwich/Arsenal DLR line.
You can ride this into central London for 22 minutes to hook up with the larger Tube network at the Bank station (Circle, District, Central, Northern, Waterloo & City lines)—or, with a change at Canning Town, the Tower Gateway station near the Tower of London (Circle and District lines).
By private car: £13–£36 ($19–$52); 20–40 min.
The easiest way to book a private transfer is through Viator.com.
Note that the lowest lead price is per person, but for the entire vehicle—so you'll only pay that lowest per-person rate if you stuff it with eight people. The per-person price goes up the fewer people you have in the car, so it only really makes sense if you have a larger party. Otherwise, just grab a regular taxi cab and split the cost.
By taxi: £25–£45 ($37–$66); 20-40 min.
The priciest option—though not for three or more people—is to grab a London taxi cab.