Are there nonstop flights from Guadalajara (GDL) to Istanbul (IST)?

No. The fastest connection is via Houston, about 14h 35m of total flying time.

What is the fastest connection from Guadalajara (GDL) to Istanbul (IST)?

via Houston ≈ 14h 35m, via Detroit ≈ 14h 35m, via Toronto ≈ 14h 36m (estimated flying time, excluding layovers).

from 27,500 ANA miles (economy, one way, based on the published award charts).

Guadalajara International Airport (GDL) to İstanbul Airport (IST)・11,552 km

No nonstop flights. The fastest connection is via Houston (IAH), about 14h 35m of flying time (layover not included).

With milesANA 27,500 miles+ (via YYZ)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

21 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.