London to San Francisco Flights on Aer Lingus from £227.41*

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Book London to San Francisco flight deals*

* Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.

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Book London to San Francisco flight deals*

Book London to San Francisco flight deals*
From
To
Fare Type
Dates
Price
London (LHR)San Francisco (SFO)Each way
/
Economy		10 Jul 2026 - 11 Aug 2026

From

£258.33

Seen: 8 hrs ago

*Roundtrip Restrictions apply.
Each way fare as part of a return trip including taxes and charges. One way fare including taxes and charges.

Testing Each way

Testing Each way
From
To
Fare Type
Dates
Price
London (LHR)San Francisco (SFO)Each way
/
Economy		27 Feb 2026 - 14 Mar 2026

From

£227.41

Seen: 5 hrs ago

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$407.67
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