Miami (MIA) to San Francisco (SFO): 2,581 miles (4,154 km) great-circle, about 5h 40m nonstop by our estimate. Cheapest fare observed: $288 round-trip on Frontier, with 1 stop, departing July 16, 2026.
$288 round-trip, Frontier F94551, departing 2026-07-16 at 20:18, returning 2026-07-21. The recorded itinerary left on a Thursday, returning on a Tuesday 5 nights later; the fare was observed 82 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $288, it ranked 12th of the 30 round-trip fares we recorded from MIA (median $480). That is 11.2 cents per great-circle mile (round-trip price over one-way distance), below the MIA median of 18.9 cents across 30 round-trip routes.
Routes from MIA of similar length: Lima (2,622 mi) at $399 and Los Angeles (2,338 mi) at $191.
Frontier had the cheapest fare on 7 of 30 MIA routes. It is the 15th longest of the 30 routes we track from MIA.
Of 19 departure airports with a fare to San Francisco, Miami (MIA) ranked 13th at $288. Lowest: $126 from Los Angeles (LAX); highest: $483 from New York (JFK); 6 nonstop. Cheapest-fare airlines (routes): Frontier (13), Southwest (3), American Airlines (1), United Airlines (1) and WestJet (1).
The reverse, San Francisco (SFO) to Miami (MIA), was $249 round-trip on Frontier, 1 stop, departing May 10, 2026. San Francisco to Miami flights.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, America/Los_Angeles; flight time is our estimate.