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Cheap flights from London to Sonoma from £359

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Sonoma are usually found in February or September, booked 51 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from London to Sonoma

Keep the following information in mind while searching for London to Sonoma flight deals. Data was last updated 16 January 2026.

Round-trip from

£390

One-way from

£359

Popular in

July

Cheapest in

February

Average price

£493
Air Canada
  • Air Canada
  • 26/1-3/2
  • 3 total stops
  • 45h 17m total
  • London to Sonoma
Search Deals
23/1
  • 23/1
  • 3 total stops
  • 26h 40m total
  • London to Sonoma
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from London to Sonoma

Enter your travel dates to find the best prices.

Cheapest flights from London to Sonoma
Explore the most affordable flight options available from London to Sonoma. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 January 2026.

Mon 26/118:00
LHR
-
SFO
2 stops31h 36m
Air Canada
Mon 2/214:30
SFO
-
LHR
1 stop32h 00m
Air Canada
Deal found 14/1£390
Wed 28/109:20
LCY
-
SFO
1 stop15h 10m
SWISS
Mon 2/219:25
SFO
-
LCY
1 stop13h 40m
SWISS
Deal found 14/1£390
Wed 28/109:50
LHR
-
SFO
1 stop13h 45m
British Airways
Sat 31/122:30
SFO
-
LHR
1 stop15h 40m
British Airways
Deal found 14/1£391
Sat 21/215:20
LHR
-
SFO
1 stop15h 44m
United Airlines
Sun 1/313:20
SFO
-
LHR
1 stop14h 30m
United Airlines
Deal found 14/1£392
Thu 8/1009:25
LGW
-
SFO
1 stop14h 50m
SWISS
Tue 13/1014:20
SFO
-
LGW
1 stop19h 30m
SWISS
Deal found 13/1£392
Sat 14/213:45
LHR
-
SFO
Nonstop11h 15m
Austrian Airlines
Thu 7/513:40
SFO
-
LHR
1 stop14h 10m
Austrian Airlines
Deal found 15/1£392
Wed 15/409:15
LGW
-
SFO
1 stop15h 00m
SWISS
Sun 26/419:35
SFO
-
LGW
1 stop14h 15m
SWISS
Deal found 15/1£392
Thu 29/115:00
LHR
-
SFO
2 stops26h 38m
Air Canada
Fri 13/223:31
SFO
-
LHR
1 stop22h 59m
Air Canada
Deal found 14/1£393
Mon 2/218:40
LGW
-
SFO
1 stop29h 50m
SWISS
Wed 18/219:25
SFO
-
LGW
1 stop14h 25m
SWISS
Deal found 14/1£393
Fri 20/213:45
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Sat 7/312:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 13/1£394
Thu 22/118:40
LGW
-
SFO
1 stop29h 50m
SWISS
Wed 18/219:25
SFO
-
LGW
1 stop14h 25m
SWISS
Deal found 15/1£394
Wed 25/313:45
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Mon 30/319:30
SFO
-
LHR
Nonstop10h 40m
Multiple Airlines
Deal found 14/1£394

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Sonoma that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 16 January 2026.
Use the filters below to find and compare flights from London to Sonoma that are best for you.

Fly from

London

Fly to

Sonoma

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 20/2

11:35-20:10

2 stops16h 35m

San Francisco

Sun 1/3

13:20-11:50

1 stop14h 30m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 28/1

11:35-20:07

2 stops16h 32m

San Francisco

Sun 1/2

21:30-20:35

1 stop15h 05m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 28/1

11:35-20:07

2 stops16h 32m

San Francisco

Wed 4/2

10:37-09:40

2 stops15h 03m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 12/2

11:35-20:10

2 stops16h 35m

San Francisco

Fri 20/2

16:15-13:30

1 stop13h 15m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 7/3

07:50-15:35

1 stop15h 45m

San Francisco

Sun 5/4

16:59-15:05

1 stop14h 06m

£394

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Tue 14/4

05:40-17:55

1 stop20h 15m

San Francisco

Sun 26/4

19:40-11:00

1 stop31h 20m

£396

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 27/1

09:50-15:35

1 stop13h 45m

San Francisco

Sat 14/2

14:27-12:15

1 stop13h 48m

£396

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 14/2

07:50-15:35

1 stop15h 45m

San Francisco

Fri 20/2

10:36-08:15

1 stop13h 39m

£397

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 28/2

11:35-20:10

2 stops16h 35m

San Francisco

Sat 7/3

08:30-06:30

1 stop14h 00m

£397

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 17/4

10:35-13:40

Nonstop11h 05m

San Francisco

Fri 24/4

16:35-11:10

Nonstop10h 35m

£398

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 60 results
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Best time to book a flight from London to Sonoma

Have a flexible travel schedule? Discover the best time to fly to Sonoma from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Sonoma

How far ahead should I book a flight from London to Sonoma?

Use this chart to determine the optimal time to book a return flight from London to Sonoma. Price data was last updated on 9 January 2026.

The price you pay for your flight from London to Sonoma may vary depending on when you book. For the best chance of a lower fare, look to book 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London to Sonoma?

Currently, February is the cheapest month in which you can book a flight from London to Sonoma (average of £353). Flying from London to Sonoma in July is currently the most expensive (average of £444). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to SN9?

Find hourly flight availability from London to Sonoma. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 January 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Sonoma as you normally would.

Weekly flight availability from London to Sonoma

Explore weekly flight availability from London to Sonoma. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 January 2026.

The most flights from LON to SN9 are scheduled on a Monday (31 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (25 on average).

How much does it cost for a return flight from London to Sonoma?

Reviews of airlines servicing Sonoma

Get insights into the airlines that provide service to Sonoma. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sonoma. Reviews last updated 16 January 2026.
See what other customers who have flown with KLM, Virgin Atlantic, andUnited Airlines from London to Sonoma have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,440 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
United Airlines
7.4
Good
9,164 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,718 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,680 reviews
KLM
7.7
Good
1,440 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.2

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from London to Sonoma. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to Sonoma?

    For as low as £457, United Airlines can have you in Sonoma from London in 15h 10m. Airlines will cover a distance of 5374 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from London to Sonoma one-way?

    To fly one-way, consider booking your trip with Scandinavian Airlines, which is currently one of the cheapest options available, starting at £250. TAP AIR PORTUGAL flights start at £271 while deals on WestJet start at £301 one-way.

  • What are the most popular routes from London to Sonoma?

    The most popular route from London to Sonoma is London Heathrow - San Francisco. You may also consider London Gatwick - San Francisco or London City - San Francisco.

  • What are the most reliable airlines from London to Sonoma?

    Consider Air Canada (88%), Austrian Airlines (88%) or United Airlines (88%) when booking your flight. These represent the most reliable airlines when flying from London to Sonoma.

  • What are the cheapest flights from London to Sonoma?

    The cheapest flight price from London to Sonoma is £341. On average you can expect to pay £1,990. The most popular route, (London Heathrow - San Francisco), can usually be booked for £323.

  • Can I find deals for flights from London to Sonoma that include hotel bookings?

    Yes. In addition to deals on London to Sonoma flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Sonoma?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Sonoma.

  • Can I find deals for business class flights from London to Sonoma?

    Yes. Cheapflights offers flight deals from London to Sonoma by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Sonoma?

    Currently, February is the cheapest month in which you can book a flight from London to Sonoma (average of £353). Flying from London to Sonoma in July is currently the most expensive (average of £444). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for London to Sonoma

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from London to Sonoma

Discover the top 10 airlines that operate flights from London to Sonoma. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£238Average£572FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£336Average£480FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£350Average£552FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£353Average£556FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£354Average£533FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
SWISSCheapest£358Average£440FlexibilityNo cancel feeOn-time79%
Search SWISS flights
TAP AIR PORTUGALCheapest£359Average£457FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
FinnairCheapest£374Average£523FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£376Average£639FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£376Average£564FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Sonoma?

Deals for London to Sonoma flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from London to Sonoma?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Sonoma for you. Better yet — we are completely free to use.

Can Cheapflights find flights from London to Sonoma with no change fees?

Need flexible booking options for your flight to Sonoma from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to Sonoma become cheaper?

Yes! Start tracking prices for London to Sonoma flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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