Are there nonstop flights from Colorado Springs (COS) to Boston (BOS)?

No. The fastest connection is via Chicago, about 4h 21m of total flying time.

What is the fastest connection from Colorado Springs (COS) to Boston (BOS)?

via Chicago ≈ 4h 21m, via Chicago ≈ 4h 21m, via Denver ≈ 4h 27m (estimated flying time, excluding layovers).

from 15,000 ANA miles, from 23,000 JAL miles (economy, one way, based on the published award charts).

City of Colorado Springs Municipal Airport (COS) to Boston Logan International Airport (BOS)・2,854 km

No nonstop flights. The fastest connection is via Chicago (MDW), about 4h 21m of flying time (layover not included).

With milesANA 15,000 miles+ (via ORD)JAL 23,000 miles+ (via DFW)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

14 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.