Cheap United flights Mexico City (MEX) to San Francisco (SFO)

Apply the "Price (lowest to highest)" filter on Expedia to find cheap United Airlines return flights from MEX to SFO. Affordable one-way options are also available.*

*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

February is one of the most affordable months to jet away to San Francisco with United Airlines. You could also find great prices on one-way and return tickets in April.

Easily travel from Mexico City Intl. Airport (MEX) to San Francisco Intl. Airport (SFO) on any of United Airlines's 21 direct weekly flights. Make use of our "Nonstop" and "Airline" filters to find the United Airlines flight that'll land at SFO at a time that suits you.

The journey time for a direct United Airlines flight from Mexico City Intl. Airport (MEX) to San Francisco Intl. Airport (SFO) takes around 4h 55m.

If flexibility is what you're after, Thursday offers the most choice for United Airlines flights from Mexico City Intl. Airport (MEX) to San Francisco Intl. Airport (SFO). You can select from 3 different departures.

Many United Airlines flights from Mexico City Intl. Airport (MEX) to San Francisco arrive at San Francisco Intl. Airport (SFO). This is the airline's main gateway to the city. It's also worth browsing Expedia for flights to nearby airports like Oakland Intl. Airport (OAK), as fares may be cheaper.

Hop on a United Airlines flight from Mexico City Intl. Airport (MEX) to San Francisco Intl. Airport (SFO), and you'll probably board an Airbus A320. Bear in mind though, that the aircraft type can change due to operational reasons.

Depending on the type of fare you purchased, a fee typically applies if you modify or cancel your flight more than 24 hours after confirmation. To find tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes while searching for flights. For additional information on canceling or modifying your reservation, head to "Trips," select your flight and tick "Manage Booking."