Are there nonstop flights from Billund (BLL) to Athens (ATH)?

No. The fastest connection is via Budapest, about 3h 41m of total flying time.

What is the fastest connection from Billund (BLL) to Athens (ATH)?

via Budapest ≈ 3h 41m, via Tirana ≈ 3h 42m, via Katowice ≈ 3h 44m (estimated flying time, excluding layovers).

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

Billund Airport (BLL) to Athens Eleftherios Venizelos International Airport (ATH)・2,266 km

No nonstop flights. The fastest connection is via Budapest (BUD), about 3h 41m of flying time (layover not included).

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

None.

34 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.