Are there nonstop flights from Stockholm (ARN) to Santander (SDR)?

No. The fastest connection is via Charleroi, about 3h 45m of total flying time.

What is the fastest connection from Stockholm (ARN) to Santander (SDR)?

via Charleroi ≈ 3h 45m, via Paris ≈ 3h 45m, via London ≈ 3h 49m (estimated flying time, excluding layovers).

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

Stockholm-Arlanda Airport (ARN) to Seve Ballesteros-Santander Airport (SDR)・2,326 km

No nonstop flights. The fastest connection is via Charleroi (CRL), about 3h 45m of flying time (layover not included).

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

None.

21 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.