Are there nonstop flights from Seattle (SEA) to San Salvador (SAL)?

No. The fastest connection is via Houston, about 6h 51m of total flying time.

What is the fastest connection from Seattle (SEA) to San Salvador (SAL)?

via Houston ≈ 6h 51m, via Dallas-Fort Worth ≈ 6h 51m, via Mexico City ≈ 6h 54m (estimated flying time, excluding layovers).

from 23,000 JAL miles, from 30,000 ANA miles (economy, one way, based on the published award charts).

Seattle–Tacoma International Airport (SEA) to El Salvador International Airport Saint Óscar Arnulfo Romero y Galdámez (SAL)・4,875 km

No nonstop flights. The fastest connection is via Houston (IAH), about 6h 51m of flying time (layover not included).

With milesJAL 23,000 miles+ (via DFW)ANA 30,000 miles+ (via IAH)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

18 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.