Are there nonstop flights from Cologne (CGN) to Washington (IAD)?

No. The fastest connection is via Dublin, about 8h 33m of total flying time.

What is the fastest connection from Cologne (CGN) to Washington (IAD)?

via Dublin ≈ 8h 33m, via Edinburgh ≈ 8h 37m, via Zurich ≈ 9h 19m (estimated flying time, excluding layovers).

from 27,500 ANA miles (economy, one way, based on the published award charts).

Cologne Bonn Airport (CGN) to Washington Dulles International Airport (IAD)・6,420 km

No nonstop flights. The fastest connection is via Dublin (DUB), about 8h 33m of flying time (layover not included).

With milesANA 27,500 miles+ (via MUC)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

13 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.