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Cheap flights from London to Sonoma from £381

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 14/12. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Sonoma are usually found in September or February, booked 51 days in advance, depart on a Thursday or Tuesday 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 14 November 2025.

Round-trip from

£411

One-way from

£381

Popular in

July

Cheapest in

September

Average price

£457
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 7/12-14/1
  • 2 total stops
  • 48h 45m total
  • London to Sonoma
Search Deals
14/12
  • 14/12
  • 1 total stop
  • 21h 10m total
  • London to Sonoma
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£64 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 November 2025
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 14 November 2025.

Sun 7/1219:55LHR - SFO
1 stop26h 40mTAP AIR PORTUGAL
Wed 14/116:35SFO - LHR
1 stop22h 05mTAP AIR PORTUGAL
Deal found 13/11£411
Fri 21/1116:40LGW - SFO
1 stop30h 05mTAP AIR PORTUGAL
Fri 28/1119:10SFO - LGW
2 stops29h 10mTAP AIR PORTUGAL
Deal found 11/11£413
Sat 6/1206:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Mon 12/116:40SFO - LHR
1 stop15h 20mScandinavian Airlines
Deal found 12/11£414
Thu 4/1216:00LGW - SFO
1 stop32h 05mTAP AIR PORTUGAL
Mon 8/1216:35SFO - LGW
2 stops20h 00mTAP AIR PORTUGAL
Deal found 11/11£418
Thu 4/1218:30LHR - SFO
1 stop29h 35mTAP AIR PORTUGAL
Wed 10/1216:35SFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 13/11£419
Fri 5/1219:30LHR - SFO
1 stop27h 05mScandinavian Airlines
Sun 7/1216:40SFO - LHR
1 stop15h 20mScandinavian Airlines
Deal found 12/11£426
Wed 3/1219:30LHR - SFO
1 stop27h 05mScandinavian Airlines
Sat 6/1216:40SFO - LHR
1 stop17h 00mScandinavian Airlines
Deal found 12/11£427
Thu 4/1206:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Mon 8/1216:40SFO - LHR
2 stops15h 45mScandinavian Airlines
Deal found 12/11£429
Thu 20/1116:00LGW - SFO
1 stop32h 05mTAP AIR PORTUGAL
Mon 1/1216:35SFO - LGW
2 stops20h 00mTAP AIR PORTUGAL
Deal found 12/11£429
Fri 5/1206:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Mon 8/1216:40SFO - LHR
2 stops15h 45mScandinavian Airlines
Deal found 13/11£429
Sun 7/1210:40LGW - SFO
1 stop35h 55mTAP AIR PORTUGAL
Wed 14/116:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 11/11£429
Thu 20/1119:55LHR - SFO
1 stop28h 10mTAP AIR PORTUGAL
Fri 28/1119:10SFO - LHR
1 stop15h 45mTAP AIR PORTUGAL
Deal found 12/11£430

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 14 November 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

LGW - SFO

LGWSFO

London Gatwick

Wed 4/2

09:35-16:05

2 stops62h 30m

San Francisco

Wed 18/2

16:35-09:50

1 stop33h 15m

£443

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Wed 3/12

06:50-15:35

1 stop16h 45m

San Francisco

Wed 10/12

17:20-23:05

1 stop21h 45m

£453

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Sat 7/3

10:10-14:35

2 stops60h 25m

San Francisco

Mon 16/3

17:35-15:45

1 stop15h 10m

£454

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 26/2

14:35-16:05

2 stops33h 30m

San Francisco

Mon 2/3

16:35-20:00

2 stops19h 25m

£464

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 11/3

18:40-17:30

1 stop29h 50m

San Francisco

Wed 18/3

20:25-17:50

1 stop14h 25m

£464

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 11/2

09:00-16:30

1 stop15h 30m

San Francisco

Wed 18/2

17:25-12:00

Nonstop10h 35m

£466

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 17/3

09:00-17:30

1 stop15h 30m

San Francisco

Tue 24/3

13:50-07:25

Nonstop10h 35m

£467

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 12/2

06:30-11:50

1 stop13h 20m

San Francisco

Thu 19/2

16:30-10:40

Nonstop10h 10m

£469

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 12/2

06:30-11:50

1 stop13h 20m

San Francisco

Wed 18/2

00:40-07:05

1 stop22h 25m

£470

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 2/2

07:40-14:50

1 stop15h 10m

San Francisco

Tue 28/4

16:40-11:10

Nonstop10h 30m

£470

Flights are sorted by cheapest return flights first.

Deals found on 12/11

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 7 November 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 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, April is the cheapest month in which you can book a flight from London to Sonoma (average of £347). Flying from London to Sonoma in July is currently the most expensive (average of £466). 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 14 November 2025.

One of the essential ways to save on airfare from London to Sonoma is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the evening could potentially save you up to 17% on airfare.

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 Friday evenings when fares are most often at their lowest. Sunday evenings 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 14 November 2025.

The most flights from LON to SN9 are scheduled on a Monday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (31 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 14 November 2025.
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
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
673 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
9,017 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,572 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,521 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 £466, TAP AIR PORTUGAL can have you in Sonoma from London in 15h 30m. 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 British Airways, which is currently one of the cheapest options available, starting at £382. Iberia flights start at £384 while deals on United Airlines start at £388 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 New Zealand (84%), Air Canada (82%) or Austrian Airlines (82%) 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 £329. On average you can expect to pay £2,186. The most popular route, (London Heathrow - San Francisco), can usually be booked for £363.

  • 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, April is the cheapest month in which you can book a flight from London to Sonoma (average of £347). Flying from London to Sonoma in July is currently the most expensive (average of £466). 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£242Average£523FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£342Average£504FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Aer LingusCheapest£358Average£574FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£358Average£484FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£361Average£535FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
United AirlinesCheapest£364Average£551FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
SWISSCheapest£365Average£449FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Brussels AirlinesCheapest£372Average£488FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
FinnairCheapest£378Average£505FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£378Average£528FlexibilityNo cancel feeOn-time75%
Search KLM 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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