Philadelphia to San Francisco flights
Round trip · Economy · Prices per person in USD
Prices updated
Prices are low right now
$299 is $61 (17%) below the usual $360 for Philadelphia → San Francisco.
Buy now or wait? We're still learning this route. We have 1 day of prices so far and need about a week to say whether to book or wait.
Not ready to book? Get an email when Philadelphia → San Francisco drops below your price.Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| September 2026 | No fares found yet |
| October 2026 | $401 |
| November 2026 | $299 (cheapest month) |
| December 2026 | $389 |
Cheapest dates in the next 4 months
Round trip, per person-
Nov 2 – 9 7 nights · leave Mon$299 −17% vs usual$299 −17% vs usual Book
Frontier Airlines 3 stops · 8h 09m -
Nov 2 – 8 6 nights · leave Mon$331 −8% vs usual$331 −8% vs usual Book
Frontier Airlines 3 stops · 8h 09m
-
Dec 1 – 6 5 nights · leave Tue$389 +8% vs usual$389 +8% vs usual Book
American Airlines Nonstop · 6h 35m -
Oct 3 – 7 4 nights · leave Sat$401 +11% vs usual$401 +11% vs usual Book
Frontier Airlines 1 stop · 7h 44m
-
Nov 20 – 30 10 nights · leave Fri$444 +23% vs usual$444 +23% vs usual Book
Southwest Airlines 2 stops · 7h 45m -
Nov 25 – 29 4 nights · leave Wed$521 +45% vs usual$521 +45% vs usual Book
Frontier Airlines 1 stop · 7h 28m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in San Francisco
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Airport transfer to San Francisco
Fixed prices from SFO on KiwitaxiTo see transfer prices here, turn on partner content in .
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Plan the rest of your trip
San Francisco · Nov 2 – 9Travel insurance · EKTA Airport transfer · Kiwitaxi
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Good to know
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Philadelphia to San Francisco: questions
How much is a flight from Philadelphia to San Francisco?
The cheapest round trip we have found right now is $299, leaving November 2 and returning November 9. The usual price on this route is about $360, so this fare is 17% less. Prices are per person, economy, in USD.
What is the cheapest month to fly from Philadelphia to San Francisco?
November 2026, with round trips from $299. The most expensive month in our data is October (from $401). Based on the 3 months ahead we have prices for.
About this route
We track round-trip economy fares from Philadelphia (United States) to San Francisco (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $299, departing November 2 and returning November 9, about 17% below the usual $360. Right now we're following 6 upcoming date combinations on this route. The cheapest month to fly in our data is November, from $299. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.