Are there nonstop flights from Washington (DCA) to Columbus (CMH)?

Yes. Southwest Airlines, American Eagle (airline brand) fly this route. Flight time is about 1h 7m.

What is the fastest connection from Washington (DCA) to Columbus (CMH)?

via Philadelphia ≈ 2h, via Detroit ≈ 2h 4m, via Norfolk ≈ 2h 4m (estimated flying time, excluding layovers).

from 12,000 JAL miles, from 15,000 ANA miles (economy, one way, based on the published award charts).

Ronald Reagan Washington National Airport (DCA) to John Glenn Columbus International Airport (CMH)・519 km

Nonstop flights available (2 airlines). Flight time about 1h 7m. Nonstop return flights also operate.

With milesJAL 12,000 miles+ (via CLT)ANA 15,000 miles+ (via ORD)Economy, one way, estimate. Tap a connection for miles by cabin.

15 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.