Are there nonstop flights from Barcelona (BCN) to Rotterdam (RTM)?

Yes. Transavia fly this route. Flight time is about 1h 55m.

What is the fastest connection from Barcelona (BCN) to Rotterdam (RTM)?

via Geneva ≈ 2h 31m, via London ≈ 2h 43m, via London ≈ 2h 44m (estimated flying time, excluding layovers).

from 12,000 JAL miles (economy, one way, based on the published award charts).

Josep Tarradellas Barcelona-El Prat Airport (BCN) to Rotterdam The Hague Airport (RTM)・1,199 km

Nonstop flights available (1 airline). Flight time about 1h 55m. Nonstop return flights also operate.

With milesJAL 12,000 miles+ (via LCY)Economy, one way, estimate. Tap a connection for miles by cabin.

22 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.