Are there nonstop flights from St Louis (STL) to Hailey (SUN)?

No. The fastest connection is via Denver, about 3h 30m of total flying time.

What is the fastest connection from St Louis (STL) to Hailey (SUN)?

via Denver ≈ 3h 30m, via Salt Lake City ≈ 3h 36m, via Chicago ≈ 4h 1m (estimated flying time, excluding layovers).

from 23,000 JAL miles (economy, one way, based on the published award charts).

St. Louis Lambert International Airport (STL) to Friedman Memorial Airport (SUN)・2,065 km

No nonstop flights. The fastest connection is via Denver (DEN), about 3h 30m of flying time (layover not included).

With milesJAL 23,000 miles+ (via SEA)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

8 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.