Main point
Stansted Airport is located 40 miles northeast of central London, making it highly dependent on the Stansted Express rail link. The train takes about 50 minutes to reach London Liverpool Street and runs every 15 minutes. It is the most reliable method of bypassing London's unpredictable traffic. However, at around £23.00 for a standard walk-up single, it is expensive. If you are staying in West London (e.g., Victoria or Earl's Court), you will also need to add a 30-minute Tube ride across the city from Liverpool Street.