Are there nonstop flights from Amsterdam (AMS) to Biarritz (BIQ)?

Yes. KLM fly this route. Flight time is about 1h 47m.

What is the fastest connection from Amsterdam (AMS) to Biarritz (BIQ)?

via Paris ≈ 2h 17m, via Paris ≈ 2h 17m, via Luxembourg ≈ 2h 26m (estimated flying time, excluding layovers).

from 12,000 JAL miles, from 15,000 ANA miles (economy, one way, based on the published award charts).

Amsterdam Airport Schiphol (AMS) to Biarritz Pays Basque airport (BIQ)・1,088 km

Nonstop flights available (1 airline). Flight time about 1h 47m. Nonstop return flights also operate.

With milesJAL 12,000 miles+ (via CDG)ANA 15,000 miles+ (via FRA)Economy, one way, estimate. Tap a connection for miles by cabin.

17 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.