Fly nonstop from San Francisco to London for $489 round-trip on Delta.
Seen below, we found seats departing SFO on Tuesday, May 2, returning from LHR on Friday, May 12.
Other dates are available for travel through May, and again from September through December.
See our fare details for booking info.
Need a room in London? Here's what's available for the above dates on Hotelwatchdog.