Fly nonstop from San Francisco to Manchester, UK for $501 round-trip on Delta or Virgin Atlantic this Spring, Late Summer, or Fall.
This seasonal route is available at this price if you depart by end of May for travel through June 19, or if you travel from August 1 through October 26. Peak Summer flights are available for only $526 on a few dates in mid-June and others in late July, if you return in late August. Delta and Virgin only fly this route nonstop on Tuesdays, Fridays, and Sundays and a 7-day stay is required for this fare.
This fare books into Basic Economy which will only limit you to carry-on baggage, if you wish to check a bag it will cost additional, or you can sign up for the Gold Delta SkyMiles Credit Card from American Express which will allow a free checked bag for you and up to four people in your traveling party. That could amount to significant savings for a family of four.
Searching on the Delta site I was able to find flights departing SFO on Tuesday, August 7, and returning from MAN on Friday, August 24, 2018. There are other dates available in August at this price but your best luck for availability will be in September and October.
If you need a place to stay here is a list of all the hotel deals we have found in Manchester from Hotelwatchdog for the dates mentioned above.