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Cheap flights from London to Sonoma from £336

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
17 Okt — 24 Okt1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from London to Sonoma are usually found in February or September, booked 86 days in advance, depart on a Tuesday or Thursday 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 17 September 2025.

Round-trip from

£383

One-way from

£336

Popular in

July

Cheapest in

February

Average price

£422
SWISS
  • SWISS
  • 2/10-29/10
  • 2 total stops
  • 33h 45m total
  • London to Sonoma
Search Deals
Aer Lingus
  • Aer Lingus
  • 23/9
  • 1 total stop
  • 26h 45m total
  • London to Sonoma
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£63 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from London to Sonoma

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 17 September 2025.

Do 2/1008:40LHR - SFO
1 stop15h 30mSWISS
Mi 29/1020:25SFO - LHR
1 stop18h 15mSWISS
Deal found 16/9£383
Mi 1/1006:30LHR - SFO
2 stops19h 15mUnited Airlines
Mi 8/1013:25SFO - LHR
1 stop13h 45mUnited Airlines
Deal found 16/9£383
Do 25/908:40LHR - SFO
1 stop15h 30mSWISS
Mi 8/1019:30SFO - LHR
2 stops28h 45mSWISS
Deal found 16/9£385
So 21/906:00LHR - SFO
1 stop18h 35mMultiple Airlines
Sa 13/1208:25SFO - LHR
1 stop14h 15mMultiple Airlines
Deal found 16/9£386
Do 25/908:30LHR - SFO
2 stops19h 21mAir Canada
Mi 8/1008:30SFO - LHR
1 stop14h 00mAir Canada
Deal found 16/9£386
Mi 24/912:20LGW - SFO
2 stops18h 55mMultiple Airlines
Mi 1/1007:00SFO - LGW
1 stop19h 40mMultiple Airlines
Deal found 16/9£386
Mi 24/906:30LHR - SFO
1 stop13h 15mDelta
Mo 3/1116:30SFO - LHR
Nonstop10h 10mDelta
Deal found 16/9£387
Di 18/1118:40LGW - SFO
1 stop29h 50mSWISS
Di 2/1219:25SFO - LGW
1 stop14h 25mSWISS
Deal found 15/9£387
Di 7/1006:30LHR - SFO
1 stop13h 15mDelta
Mo 3/1116:30SFO - LHR
Nonstop10h 10mDelta
Deal found 16/9£388
Di 25/1111:45LHR - SFO
Nonstop11h 15mBritish Airways
Di 2/1220:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 15/9£389
Mi 1/1009:30LHR - SFO
1 stop18h 21mAir Canada
Di 7/1008:30SFO - LHR
1 stop14h 00mAir Canada
Deal found 16/9£389
Mi 24/911:15LHR - SFO
Nonstop11h 00mVirgin Atlantic
Mo 29/916:05SFO - LHR
Nonstop10h 20mVirgin Atlantic
Deal found 15/9£390

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 17 September 2025.
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

Sa 4/10

06:30-17:45

2 stops19h 15m

San Francisco

Sa 11/10

11:40-09:35

1 stop13h 55m

£384

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Do 5/3

17:45-16:30

1 stop30h 45m

San Francisco

Mo 9/3

20:25-17:05

1 stop13h 40m

£386

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mi 5/11

10:05-13:20

Nonstop11h 15m

San Francisco

Sa 15/11

12:50-07:25

Nonstop10h 35m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sa 4/10

10:35-13:40

Nonstop11h 05m

San Francisco

Mo 13/10

13:05-07:25

Nonstop10h 20m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

So 28/9

10:35-13:40

Nonstop11h 05m

San Francisco

So 5/10

19:50-14:10

Nonstop10h 20m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fr 3/10

10:35-13:40

Nonstop11h 05m

San Francisco

So 12/10

13:05-07:25

Nonstop10h 20m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Do 9/10

10:35-13:40

Nonstop11h 05m

San Francisco

So 12/10

13:05-07:25

Nonstop10h 20m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mo 16/2

10:05-13:20

Nonstop11h 15m

San Francisco

Fr 6/3

12:50-07:25

Nonstop10h 35m

£393

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

So 15/2

06:30-11:50

1 stop13h 20m

San Francisco

Fr 6/3

16:30-10:40

Nonstop10h 10m

£394

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mi 8/10

16:15-19:20

Nonstop11h 05m

San Francisco

Mi 15/10

13:05-07:25

Nonstop10h 20m

£394

Flights are sorted by cheapest return flights first.

Deals found on 16/9

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 12 September 2025.

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 86 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 £538). Flying from London to Sonoma in July is currently the most expensive (average of £803). 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 17 September 2025.

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.

What is the cheapest day to fly from London to Sonoma?

Use this chart to determine the cheapest time to fly return from London to Sonoma. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to Sonoma flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 17 September 2025.

The most flights from LON to SN9 are scheduled on a Monday (42 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (36 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 17 September 2025.
See what other customers who have flown with KLM, United Airlines, andVirgin Atlantic 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
7.8
Good
1,386 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
KLM
7.8
Good
1,386 reviews
KLM
7.8
Good
1,386 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
United Airlines
7.4
Good
8,924 reviews
KLM
7.8
Good
1,386 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
Virgin Atlantic
7.4
Good
664 reviews
KLM
7.8
Good
1,386 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
Lufthansa
6.8
Okay
7,407 reviews
KLM
7.8
Good
1,386 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
British Airways
6.7
Okay
7,363 reviews
KLM
7.8
Good
1,386 reviews
Check prices

Food

7.3

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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 £384, United Airlines can have you in Sonoma from London in 19h 15m. Airlines will cover a distance of 5350 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 Virgin Atlantic, which is currently one of the cheapest options available, starting at £336. JetBlue flights start at £345 while deals on British Airways start at £348 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 KLM (86%), Air France (86%) or Delta (86%) 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 £373. On average you can expect to pay £1,777. The most popular route, (London Heathrow - San Francisco), can usually be booked for £344.

  • 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 £538). Flying from London to Sonoma in July is currently the most expensive (average of £803). 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

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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 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£234Average£483FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
TAP AIR PORTUGALCheapest£345Average£461FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
SWISSCheapest£347Average£432FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Aer LingusCheapest£348Average£552FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£349Average£540FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£353Average£470FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Air CanadaCheapest£354Average£483FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£359Average£528FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£362Average£558FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£362Average£623FlexibilityNo cancel feeOn-time70%
Search British Airways 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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