Are there nonstop flights from Tehran (IKA) to St. Petersburg (LED)?

Yes. Mahan Air, Iran Airtour, Meraj Airlines fly this route. Flight time is about 4h 9m.

What is the fastest connection from Tehran (IKA) to St. Petersburg (LED)?

via Grozny ≈ 4h 39m, via Moscow ≈ 4h 39m, via Baku ≈ 4h 40m (estimated flying time, excluding layovers).

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

Imam Khomeini International Airport (IKA) to Pulkovo Airport (LED)・3,101 km

Nonstop flights available (3 airlines). Flight time about 4h 9m. Nonstop return flights also operate.

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

12 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.