Miami (MIA) to San Salvador (SAL): 1,026 miles (1,651 km) great-circle, about 2h 35m nonstop by our estimate. Cheapest fare observed: $329 round-trip on Avianca, nonstop, departing June 17, 2026.
$329 round-trip, Avianca AV311, departing 2026-06-17 at 15:50, returning 2026-06-24. The recorded itinerary left on a Wednesday, returning on a Wednesday 7 nights later; the fare was observed 53 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $329, it ranked 13th of the 30 round-trip fares we recorded from MIA (median $480). That is 32.1 cents per great-circle mile (round-trip price over one-way distance), above the MIA median of 18.9 cents across 30 round-trip routes.
Routes from MIA of similar length: Managua (1,018 mi) at $404 and San Juan (1,045 mi) at $202.
Avianca had the cheapest fare on 2 of 30 MIA routes. It is the 23rd longest of the 30 routes we track from MIA.
Of 13 departure airports with a fare to San Salvador, Miami (MIA) ranked 6th at $329. Lowest: $241 from Los Angeles (LAX); highest: $603 from Atlanta (ATL); 4 nonstop. Cheapest-fare airlines (routes): United Airlines (7), Avianca (4), American Airlines (1) and Copa (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, America/El_Salvador; flight time is our estimate.