Are there nonstop flights from Calgary (YYC) to Fayetteville/Springdale/Rogers (XNA)?

No. The fastest connection is via Denver, about 3h 52m of total flying time.

What is the fastest connection from Calgary (YYC) to Fayetteville/Springdale/Rogers (XNA)?

via Denver ≈ 3h 52m, via Minneapolis ≈ 4h 7m, via Salt Lake City ≈ 4h 16m (estimated flying time, excluding layovers).

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

Calgary International Airport (YYC) to Northwest Arkansas National Airport (XNA)・2,273 km

No nonstop flights. The fastest connection is via Denver (DEN), about 3h 52m of flying time (layover not included).

With milesANA 15,000 miles+ (via DEN)JAL 15,000 miles+ (via DFW)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.