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Cheap First Class flights to San Francisco

LHR — SFO
21 Jun — 28 Jun1
1 adult
1 adult, First, 0 bags

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Cheap first class flights to San Francisco in 2026

Find the latest flights to San Francisco in 2026, 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 22 May 2026.

Top Rated Airline

American Airlines

No. of Airlines

3

Arrival Airport

San Francisco Airport
Most popular airline to fly first class with to San Francisco in the past 7 days
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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 22 May 2026.

Wed 16/918:05
LHR
-
SFO
1 stop23h 16m
British Airways
Wed 23/907:00
SFO
-
LHR
1 stop15h 25m
British Airways
Deal found 18/5£4,569
Fri 18/909:15
LHR
-
SFO
1 stop21h 25m
Finnair
Fri 25/915:05
SFO
-
LHR
1 stop22h 35m
Finnair
Deal found 19/5£4,770
Sun 2/818:05
LHR
-
SFO
1 stop27h 49m
Finnair
Fri 14/808:00
SFO
-
LHR
1 stop14h 55m
Finnair
Deal found 20/5£5,055
Tue 21/716:25
LHR
-
SFO
1 stop16h 18m
American Airlines
Sun 26/715:38
SFO
-
LHR
1 stop14h 47m
American Airlines
Deal found 21/5£5,236
Sun 2/814:25
LHR
-
SFO
1 stop16h 03m
American Airlines
Fri 14/811:00
SFO
-
LHR
1 stop14h 00m
American Airlines
Deal found 19/5£5,254
Wed 16/914:20
LHR
-
SFO
Nonstop11h 10m
Multiple Airlines
Wed 23/916:35
SFO
-
LHR
Nonstop10h 25m
Multiple Airlines
Deal found 18/5£5,460

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.

Which month is the cheapest to fly First Class from the United Kingdom to San Francisco?

For First Class flights, the cheapest month to fly this route is April. The most expensive months are January and September.

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 22 May 2026.

  • 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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