Are there nonstop flights from Washington (DCA) to Amman (AMM)?

No. The fastest connection is via New York, about 12h 14m of total flying time.

What is the fastest connection from Washington (DCA) to Amman (AMM)?

via New York ≈ 12h 14m, via Montréal ≈ 12h 23m, via Toronto ≈ 12h 44m (estimated flying time, excluding layovers).

from 40,000 JAL miles (economy, one way, based on the published award charts).

Ronald Reagan Washington National Airport (DCA) to Queen Alia International Airport (AMM)・9,557 km

No nonstop flights. The fastest connection is via New York (JFK), about 12h 14m of flying time (layover not included).

With milesJAL 40,000 miles+ (via ORD)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

6 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.