Cheap flights from Philadelphia to San Francisco from $203

If you aren’t able to travel to San Francisco during the month of April, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $418.

The cheapest day to depart from Philadelphia to San Francisco is on a Wednesday when prices can be found for as low as $464. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $747.

Our data shows that the cheapest Philadelphia to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $394. Flights in the morning are often more expensive with an average ticket price of $547.

Fly from Philadelphia to San Francisco for the best Philadelphia - San Francisco flight prices

You are more likely to see cheaper flights to San Francisco from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $438 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Philadelphia for as low as $375 on momondo.

There are 4 cabin classes available to choose from on Philadelphia to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Philadelphia to San Francisco.

As of October 2026, prices for Philadelphia to San Francisco flights are approximately 27% more expensive when compared to flights at the same time last year.

Southwest and Alaska Airlines are the most popular carriers operating from Philadelphia to San Francisco

United Airlines, American Airlines and JetBlue are the top three most popular airlines that fly to San Francisco from Philadelphia according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 9 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Atlanta (ATL) was the most common stop: 57% of momondo users choosing 1-stop flights on this route connected there.

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $250.

Flights connecting via St. Louis (STL) have the shortest average one-way travel time: 7h 55m.

St. Louis (STL) has the shortest average layover time for this route: 1h 13m.

As of October 2026, 12 flights take off from Philadelphia and land in San Francisco each day. The most common flight departure time for this route is 6:00AM, with 37% of daily flights taking off at noon.

The number of flights available between Philadelphia and San Francisco is 86 per week as of October 2026. The most frequent departure day is Mon, with 21% of weekly flights leaving on this day.