Find Cheap Flights to San Francisco

About Cheap Flights to San Francisco

San Francisco, United States is served by 43 airlines flying 250 scheduled routes inbound in our booking network. That breadth of coverage is what makes hunting a cheap fare here realistic, when multiple carriers compete on the same route, lead-in pricing drops.

You can book San Francisco flights through Aviafares at the same published fares you'd see on any airline's own site, and our US booking team also pulls unpublished consolidator rates on premium cabins. If you need help comparing routings, call our 24/7 line.

Cheapest times to fly to San Francisco

Shoulder-season pricing is almost always the move: the weeks immediately after peak demand softens but before the next peak ramps up. Avoid US school holiday weeks and the destination's own peak. Our search widget above shows live fares for your exact dates, which is the only way to know the cheapest window right now.

How to get the best fare

Flexibility is leverage. If your dates are fixed, flexibility comes from being willing to fly at a less-popular time of day, from a secondary airport, or with one connection instead of nonstop. Our agents can quickly show you the delta between these options on a live call. For premium cabins to San Francisco, consolidator rates often beat public fares by 30–50%, there's no price filter on public search that reveals them.

24/7 booking assistance

Changes, cancellations, and refunds on any San Francisco ticket are handled by our US-based booking team around the clock. For US-touching cancellations, DOT rules entitle you to a full refund on any fare, we file the request with the airline and follow through until it lands.

Airlines flying to San Francisco

Carriers with the most scheduled service to San Francisco in our network.

Frequently asked questions

When is the cheapest time of year to fly to San Francisco?

Cheap fares to San Francisco typically appear in shoulder seasons, roughly late January through March, and again September through early November. Holiday windows around Thanksgiving, Christmas/New Year, and July 4 always spike. Use the flexible-date option in the search widget to see a full seven-day grid.

How far in advance should I book flights to San Francisco?

For domestic US routes to San Francisco, booking 4–8 weeks out usually lands the best fare. For international trips, 2–4 months out is the sweet spot. Last-minute deals do happen but are the exception, if your dates are firm, book early.

Does Aviafares charge a booking fee?

No fee on standard domestic or simple international round-trips. For multi-city itineraries or agent-assisted bookings (including unpublished fares) we charge $25 per passenger, shown as a separate line at checkout. See our Fare Disclosure for the full breakdown.

What if the flight gets cancelled after I book?

US DOT rules entitle you to a full refund for a US-touching flight that the airline cancels, even on a non-refundable fare. We file the refund on your behalf. If you need to be rebooked same-day, call our 24/7 line.