Delta Airlines London London LHR San Francisco SFO Skyteam Alliance Star Alliance United Airlines Virgin Atlantic

Summer SFO to London $437 Delta July, United $420 August, lower fares to March 2020

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Amazing to see San Francisco to London LHR at $437 round trip flying Virgin Atlantic nonstop in late July with one-stop Delta flights in early August for the return. SkyTeam ticket prices drop to $415 round trip from August to March.

United Airlines has one-stop flights SFO-LHR beginning August 11 for as low as $420 round trip. Nonstop flights from $428 are available from August 18. Low United/Star Alliance fares are available through March 2020.

Delta Airlines  San Francisco SFO – London LHR (Virgin Atlantic) – Detroit DTW – San Francisco SFO (Delta)

$437.23 round trip Monday July 29 – Thursday August 8

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United Airlines  San Francisco SFO – London LHR – San Francisco nonstop flights

$427.13 round trip  Sunday August 18 – Wednesday August 28

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