Are there nonstop flights from Jammu (IXJ) to Guwahati (GAU)?

No. The fastest connection is via New Delhi, about 3h 19m of total flying time.

What is the fastest connection from Jammu (IXJ) to Guwahati (GAU)?

via New Delhi ≈ 3h 19m, via Kolkata ≈ 3h 38m, via Ahmedabad ≈ 4h 34m (estimated flying time, excluding layovers).

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

Jammu Airport (IXJ) to Lokpriya Gopinath Bordoloi International Airport (GAU)・1,777 km

No nonstop flights. The fastest connection is via New Delhi (DEL), about 3h 19m of flying time (layover not included).

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

None.

5 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.