Are there nonstop flights from London (STN) to Stockholm / Västerås (VST)?

Yes. Ryanair fly this route. Flight time is about 2h 4m.

London → Stockholm / Västerås

London Stansted Airport (STN) to Stockholm Västerås Airport (VST)・1,331 km

Nonstop flights available (1 airline). Flight time about 2h 4m. Nonstop return flights also operate.

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