Are there nonstop flights from Barcelona (BCN) to Tehran (IKA)?

No. The fastest connection is via Istanbul, about 6h 1m of total flying time.

What is the fastest connection from Barcelona (BCN) to Tehran (IKA)?

via Istanbul ≈ 6h 1m, via İzmir ≈ 6h 5m, via Yerevan ≈ 6h 5m (estimated flying time, excluding layovers).

from 23,000 JAL miles, from 30,000 ANA miles (economy, one way, based on the published award charts).

Josep Tarradellas Barcelona-El Prat Airport (BCN) to Imam Khomeini International Airport (IKA)・4,271 km

No nonstop flights. The fastest connection is via Istanbul (SAW), about 6h 1m of flying time (layover not included).

With milesJAL 23,000 miles+ (via DOH)ANA 30,000 miles+ (via VIE)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

10 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.