Cheap flights from San Francisco to Madrid from $371

The month of February is, on average, the cheapest month to fly to Madrid from San Francisco, with most prices found around $531. If you don’t want to visit Madrid in February, then you should wait until October to fly from San Francisco, when ticket prices are also cheap, with an average price of $545.

The cheapest day to depart on your flight to Madrid is on a Wednesday when prices can be found for as low as $810. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Madrid on Friday is $1,142.

Fly from San Francisco to Madrid Barajas for the best San Francisco - Madrid Barajas flight prices

You are more likely to see cheaper flights to Madrid from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Madrid for around $745 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Madrid from San Francisco for as low as $695 on momondo.

There are 3 cabin classes available to choose from on San Francisco to Madrid Barajas flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of March 2026, prices for San Francisco to Madrid flights are approximately 32% more expensive when compared to flights at the same time last year.

LEVEL, TAP AIR PORTUGAL, and United Airlines are the most popular carriers operating from San Francisco to Madrid Barajas

Iberia, TAP AIR PORTUGAL and British Airways are the top three most popular airlines that fly to Madrid from San Francisco according to our data. Iberia is the first choice among our users, with 29% of people opting to fly with this airline when traveling to Madrid. Keep in mind that there are 20 different airlines that fly to Madrid on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% of flights between San Francisco and Madrid have experienced a delay on any given week. The average delay length over the past 12 months has been 187 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Iberia have had the least number of delays on this route over the last 12 months; with about 17% of their flights experiencing any sort of delay.

Lisbon (LIS) was the most common stop: 26% of momondo users choosing 1-stop flights on this route connected there.

Flights via Amsterdam (AMS) offer the lowest average round-trip price of $530.

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 13h 33m.

Zurich (ZRH) has the shortest average layover time for this route: 1h 14m.