San Francisco (SFO) to Mexico City (MEX): 1,882 miles (3,029 km) great-circle, about 4h 15m nonstop by our estimate. Cheapest fare observed: $433 round-trip on Aeromexico, nonstop, departing May 13, 2026.
$433 round-trip, Aeromexico AM669, departing 2026-05-13 at 14:35, returning 2026-05-17. The recorded itinerary left on a Wednesday, returning on a Sunday 4 nights later; the fare was observed 18 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $433, it ranked 13th of the 30 round-trip fares we recorded from SFO (median $646). That is 23.0 cents per great-circle mile (round-trip price over one-way distance), above the SFO median of 16.9 cents across 30 round-trip routes.
Routes from SFO of similar length: Chicago (1,842 mi) at $364 and Toronto (2,254 mi) at $358.
SFO to MEX is the only one of 30 SFO routes where Aeromexico priced cheapest. It is the 25th longest of the 30 routes we track from SFO.
Of 24 departure airports with a fare to Mexico City, San Francisco (SFO) ranked 18th at $433. Lowest: $73 from Guadalajara (GDL); highest: $1375 from Addis Ababa (ADD); 13 nonstop. Cheapest-fare airlines (routes): Volaris (6), Viva Aerobus (5), Aeromexico (4), Arajet (2), Copa (1) and Ethiopian (1), plus 5 more.
That depends on your passport and trip, so check the official source for Mexico: Instituto Nacional de Migracion (Mexico). Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, America/Mexico_City; flight time is our estimate.