Are there nonstop flights from London (STN) to Vaasa (VAA)?

No. The fastest connection is via Stockholm, about 3h 9m of total flying time.

What is the fastest connection from London (STN) to Vaasa (VAA)?

via Stockholm ≈ 3h 9m, via Helsinki ≈ 3h 30m (estimated flying time, excluding layovers).

London Stansted Airport (STN) to Vaasa Airport (VAA)・1,772 km

No nonstop flights. The fastest connection is via Stockholm (ARN), about 3h 9m of flying time (layover not included).

None.

2 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.