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Cheap First Class flights to San Francisco

LHR — SFO
14 Jan — 21 Jan1
1 adult
1 adult, First, 0 bags

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Cheap first class flights to San Francisco in 2025

Find the latest flights to San Francisco in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data were last updated on 15 December 2025.

Average Price

£6,165

Cheapest Price

£4,002

Top Rated Airline

American Airlines

No. of Airlines

3

Arrival Airport

San Francisco Airport
Average for return first class flights in December 2025
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Cheapest first class flights to San Francisco
Explore the most affordable first class flight options available to San Francisco. Find the lowest fares based on data from user searches, with prices last updated on 15 December 2025.

Fri 1/518:05LHR - SFO
2 stops27h 56mFinnair
Mon 4/507:34SFO - LHR
1 stop15h 21mFinnair
Deal found 14/12£4,021
Fri 1/510:45LHR - SFO
Nonstop11h 05mAmerican Airlines
Mon 4/514:28SFO - LHR
1 stop13h 42mAmerican Airlines
Deal found 14/12£4,695
Fri 1/514:30LHR - SFO
Nonstop11h 10mBritish Airways
Mon 4/516:35SFO - LHR
Nonstop10h 25mBritish Airways
Deal found 14/12£4,876
Sun 11/114:45LHR - SFO
1 stop31h 05mBritish Airways
Tue 13/107:00SFO - LHR
1 stop15h 50mBritish Airways
Deal found 13/12£7,588
Thu 25/1208:20LHR - SFO
2 stops18h 17mFinnair
Thu 1/113:31SFO - LHR
1 stop33h 49mFinnair
Deal found 13/12£9,996
Thu 25/1211:45LHR - SFO
Nonstop11h 15mBritish Airways
Thu 1/120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 13/12£10,850

Travel insights for first class flights from United Kingdom to San Francisco

Get recent, data-driven insights about first class flights from United Kingdom to San Francisco including ideal travel times, pricing trends, and more.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Frequently asked questions about San Francisco first class tickets

Find answers to common questions related to first class tickets for flights to San Francisco. Get information on booking, amenities, upgrade options, and more. This FAQ section was last updated on 15 December 2025.

  • What is the cheapest price for a First Class ticket to San Francisco?

    Looking for cheap deals? The cheapest price last booked, £4,002/person, was for a First Class flight ticket going from London Heathrow Airport to San Francisco. First Class flights usually cost £6,165 per person.

  • How much do Business Class flight tickets to San Francisco cost?

    The average price for a Business Class ticket to San Francisco recently is £2,006. For what you get as travel perks, Business Class cabin is a great alternative to First Class. First Class tickets are also usually 68% more expensive.

  • How many premium cabins does Finnair have for flights to San Francisco?

    Finnair currently offers a couple premium cabin classes on flights to San Francisco: Business Class, Prem Economy Class and First Class. Still not enough? Try taking a look at other airlines or choosing a new departing point for more cabin options.

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