Are there nonstop flights from Paris (CDG) to Belgrade (BEG)?

Yes. easyJet, Air Serbia fly this route. Flight time is about 2h 10m.

What is the fastest connection from Paris (CDG) to Belgrade (BEG)?

via Zagreb ≈ 2h 40m, via Zgornji Brnik ≈ 2h 41m, via Zurich ≈ 2h 41m (estimated flying time, excluding layovers).

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

Charles de Gaulle International Airport (CDG) to Belgrade Nikola Tesla Airport (BEG)・1,423 km

Nonstop flights available (2 airlines). Flight time about 2h 10m. Nonstop return flights also operate.

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

58 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.