Are there nonstop flights from Madrid (MAD) to London (STN)?

Yes. Ryanair fly this route. Flight time is about 2h 2m.

What is the fastest connection from Madrid (MAD) to London (STN)?

via Nantes ≈ 2h 31m, via Santander ≈ 2h 33m, via Paris ≈ 2h 40m (estimated flying time, excluding layovers).

from 15,000 JAL miles, from 15,000 ANA miles (economy, one way, based on the published award charts).

Adolfo Suárez Madrid–Barajas Airport (MAD) to London Stansted Airport (STN)・1,300 km

Nonstop flights available (1 airline). Flight time about 2h 2m. Nonstop return flights also operate.

With milesJAL 15,000 miles+ (via CMN)ANA 15,000 miles+ (via MUC)Economy, one way, estimate. Tap a connection for miles by cabin.

57 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.