Are there nonstop flights from Tehran (IKA) to Muscat (MCT)?

Yes. SalamAir, Qeshm Air, Varesh Airlines, Taban Air, Sepehran Airlines fly this route. Flight time is about 2h 15m.

What is the fastest connection from Tehran (IKA) to Muscat (MCT)?

via Sharjah ≈ 2h 48m, via Dubai ≈ 2h 49m, via Doha ≈ 3h 9m (estimated flying time, excluding layovers).

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

Imam Khomeini International Airport (IKA) to Muscat International Airport (MCT)・1,483 km

Nonstop flights available (5 airlines). Flight time about 2h 15m. Nonstop return flights also operate.

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

8 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.