May is the cheapest month to fly this route, with average fares around $841 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $841 | $750 | Best | |
| June 2026 | $979 | $800 | ||
| July 2026 | $992 | $955 | Peak | |
| August 2026 | $902 | $860 |
Departing on Monday offers the lowest average fares at $934. Friday departures are the most expensive at $988, a difference of $54.
The best time to fly is May. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from San Francisco to Frankfurt is May, with average round-trip fares around $841. The lowest fare found in May is $750.
Monday departures are the cheapest, averaging $934 round trip. The most expensive day is Friday at $988.
Based on current pricing trends, booking for May travel offers the best value. Avoid July if possible, as fares average $992 compared to $841 in the cheapest month. June is a solid middle-ground option at $979.
Flying in May instead of July can save you approximately $151 per round trip. The cheapest month averages $841 while the most expensive averages $992.
Airlines, flight times, price calendar, and more for San Francisco to Frankfurt
View SFO → FRA Details