Cheap flights from Zürich to San Francisco in May 2027
May 2027 sits below the usual range on this route. 17 May - 23 May looks strongest right now.
Lowest fare
€684
Typical fare
€901
Current signal
Below typical by 24%
High fare
€1,029
Destination view
May 2027 fares to San Francisco from Zürich.
Week by week
Which week looks strongest in May 2027?
Start with the strongest week, then compare the live fares below. This keeps the page focused on one question: when does this route usually open best inside May 2027?
Week window
26 Apr - 2 May
This week is trading near the route norm right now.
Week window
3 May - 9 May
This week is trading near the route norm right now.
Week window
10 May - 16 May
Current fares sit 1% below the usual range for this week.
Week window
17 May - 23 May
Current fares sit 4% below the usual range for this week.
Live fares now
Bookable fares for May 2027
Open a live fare first if you are ready to book. These cards keep the month page tied to real inventory, not filler copy.
Search intent answers
Quick answers for May 2027
Is May 2027 a good time to fly from Zürich to San Francisco?
Yes. Current fares in May 2027 are running 24% below the usual range on this route.
Which week looks cheapest in May 2027?
17 May - 23 May is the clearest week to open first based on the current fare spread.
Are direct flights available on this route in May 2027?
Yes. We currently see 7 direct fares in this month window.