For late summer travel, fly nonstop from San Francisco to London for $579 roundtrip on Virgin Atlantic.
Seen below, we found seats departing SFO on Monday, August 20, returning from SFO on Tuesday, August 28.
You'll find lower fares for travel from late September onward through the winter months.
Visit our San Francisco SFO fare listings for a complete look at current finds.
Need a room in London? Here's what's available for the above dates on Hotelwatchdog.