Best Affordable Airport Transfers
Pawel Libera / Alamy
Best Taxi Alternative: Heathrow Express train.
Time to Downtown: 15 minutes to central London.
Drawback: A London cab ride can be a great experience.
Taxi Facts: Averages between 30 and 60 minutes and costs $60–$120.
Bottom Line: Not only is this the fastest way to get from the airport to central London, but the trains even have free Wi-Fi. They depart every 15 minutes, from just past 5 a.m. to nearly midnight. Take the train to Paddington Station, where you can also check in for your return flight and avoid the lines at the airport counter.