Are there nonstop flights from Hartford (BDL) to London (STN)?

No. The fastest connection is via Dublin, about 7h 22m of total flying time.

What is the fastest connection from Hartford (BDL) to London (STN)?

via Dublin ≈ 7h 22m (estimated flying time, excluding layovers).

Bradley International Airport (BDL) to London Stansted Airport (STN)・5,410 km

No nonstop flights. The fastest connection is via Dublin (DUB), about 7h 22m of flying time (layover not included).

None.

1 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.