Cheap Flights to San Francisco
$149 round trip from New Yorkseen Aug 18 · 6–12 Oct
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Overview
Flying to San Francisco
Country
United States
Region
North America
Airport
SFO
Cheapest month we saw
October ($235)
Fares by month
When is it cheapest to fly to San Francisco?
Cheapest round trip we observed from New York, in USD, across the 6 months we hold fares for. Months we have not seen a fare for are not shown — they are not months without flights.
Climate
Weather in San Francisco, month by month
The warmest month in San Francisco is September, at an average high of 75°F; the coolest is January at 57°F. February brings the most rain.
| Month | High | Low | Rain | Ocean |
|---|---|---|---|---|
| January | 57°F | 43°F | 3.3 in | 54°F |
| February | 59°F | 45°F | 3.5 in | 52°F |
| March | 61°F | 46°F | 2.8 in | 52°F |
| April | 63°F | 48°F | 1.5 in | 54°F |
| May | 68°F | 52°F | 0.5 in | 55°F |
| June | 72°F | 54°F | 0.1 in | 59°F |
| July | 73°F | 55°F | 0.0 in | 59°F |
| August | 73°F | 55°F | 0.1 in | 61°F |
| Septemberthis month | 75°F | 57°F | 0.2 in | 63°F |
| October | 72°F | 54°F | 0.4 in | 61°F |
| November | 61°F | 48°F | 2.5 in | 57°F |
| December | 57°F | 45°F | 3.5 in | 55°F |
Ten-year average (2015–2024) of measured daily observations, not a brochure estimate.
Full San Francisco guide coming soon
We're writing an in-depth guide to San Francisco — attractions, food, hotels, transport and the best time to visit. Meanwhile, search live fares above and grab a deal.
Good to know
Flying to San Francisco — your questions answered
- How much is a round trip flight to San Francisco?
- The cheapest round trip we currently hold is $149 from New York (seen Aug 18 · 6–12 Oct). Across the 6 months we hold fares for, October is the cheapest month we have seen, at $235, and May the dearest at $474. These are prices a live search returned, not a standing offer, and they move daily.
- When is it warm in San Francisco?
- September is the warmest month in San Francisco, averaging a daily high of 75°F, and 1 of the 12 months average 75°F or warmer. The coolest is January at 57°F. These are ten-year averages (2015–2024) of measured observations, not estimates.
- What is the weather like in San Francisco in September?
- In September, San Francisco averages a daily high of 75°F and an overnight low of 57°F; about 0.2 inches of rain fall across the month; the sea averages 63°F. Ten-year measured averages — an individual week can differ.
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