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Cheap flights from London to Sonoma from £366

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 19/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
11 Jan — 18 Jan1
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 Tuesday and return on a Wednesday

Cheap 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 12 December 2025.

Tue 23/1208:15LHR - SFO
1 stop38h 15mTAP AIR PORTUGAL
Mon 19/116:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 10/12£473
Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Mon 12/116:35SFO - LHR
1 stop21h 00mTAP AIR PORTUGAL
Deal found 11/12£476
Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Mon 29/1216:35SFO - LHR
1 stop36h 05mTAP AIR PORTUGAL
Deal found 10/12£482
Thu 25/1218:30LHR - SFO
1 stop29h 35mTAP AIR PORTUGAL
Sat 10/116:35SFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 11/12£484
Wed 24/1215:25LHR - SFO
Nonstop11h 20mBritish Airways
Tue 6/120:40SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 10/12£486
Sat 13/1210:10LGW - SFO
2 stops60h 25mTAP AIR PORTUGAL
Fri 9/119:10SFO - LGW
1 stop30h 40mTAP AIR PORTUGAL
Deal found 11/12£490
Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Fri 9/119:10SFO - LHR
1 stop19h 30mTAP AIR PORTUGAL
Deal found 12/12£495
Sat 13/1210:10LGW - SFO
2 stops60h 25mTAP AIR PORTUGAL
Sat 10/116:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 10/12£495
Wed 24/1217:00LHR - SFO
1 stop29h 35mScandinavian Airlines
Sat 17/116:40SFO - LHR
1 stop17h 00mScandinavian Airlines
Deal found 10/12£497
Thu 25/1219:55LHR - SFO
1 stop28h 10mTAP AIR PORTUGAL
Fri 9/119:10SFO - LHR
1 stop15h 45mTAP AIR PORTUGAL
Deal found 12/12£497
Thu 25/1219:55LHR - SFO
1 stop28h 10mTAP AIR PORTUGAL
Mon 29/1216:35SFO - LHR
1 stop36h 05mTAP AIR PORTUGAL
Deal found 10/12£498
Sat 13/1210:10LGW - SFO
2 stops60h 25mTAP AIR PORTUGAL
Mon 19/116:35SFO - LGW
2 stops20h 00mTAP AIR PORTUGAL
Deal found 11/12£500

Find flight deals from London to Sonoma

Keep the following information in mind while searching for London to Sonoma flight deals. Data was last updated 12 December 2025.

Round-trip from

£470

One-way from

£366

Popular in

July

Cheapest in

February

Average price

£610
JetBlue
  • JetBlue
  • 9/1-17/1
  • 2 total stops
  • 37h 02m total
  • London to Sonoma
Search Deals
Finnair
  • Finnair
  • 19/3
  • Nonstop
  • 11h 15m total
  • London to Sonoma
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£57 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 December 2025
Search Deals

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 12 December 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

Mon 12/1

16:40-14:50

1 stop30h 10m

San Francisco

Mon 26/1

12:50-07:25

Nonstop10h 35m

£476

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Mon 26/1

09:15-16:30

1 stop15h 15m

San Francisco

Mon 2/2

19:25-17:05

1 stop13h 40m

£479

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 27/1

13:45-17:00

Nonstop11h 15m

San Francisco

Thu 19/2

17:25-12:00

Nonstop10h 35m

£491

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 28/1

13:45-17:00

Nonstop11h 15m

San Francisco

Mon 16/2

12:50-07:25

Nonstop10h 35m

£491

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 5/3

09:00-16:30

1 stop15h 30m

San Francisco

Mon 16/3

20:25-17:50

1 stop14h 25m

£494

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 28/1

09:00-16:30

1 stop15h 30m

San Francisco

Sat 21/2

16:15-13:30

1 stop13h 15m

£494

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 25/1

09:00-16:30

1 stop15h 30m

San Francisco

Thu 5/3

12:50-07:25

Nonstop10h 35m

£494

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 31/1

09:00-16:30

1 stop15h 30m

San Francisco

Tue 17/2

12:50-07:25

Nonstop10h 35m

£494

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 31/1

09:00-16:30

1 stop15h 30m

San Francisco

Wed 18/2

12:50-07:25

Nonstop10h 35m

£494

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Wed 21/1

09:20-16:30

1 stop15h 10m

San Francisco

Sun 15/2

19:25-17:10

1 stop13h 45m

£494

Flights are sorted by cheapest return flights first.

Deals found on 10/12

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 5 December 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, February is the cheapest month in which you can book a flight from London to Sonoma (average of £355). Flying from London to Sonoma in July is currently the most expensive (average of £455). 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 12 December 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 12 December 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).

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 12 December 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
1,432 reviews
Check prices

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,432 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Virgin Atlantic
7.5
Good
675 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
United Airlines
7.4
Good
9,095 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Lufthansa
6.8
Okay
7,626 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,571 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 £491, United Airlines can have you in Sonoma from London in 11h 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 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 New Zealand (85%), KLM (84%) or Air France (83%) 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 £337. On average you can expect to pay £1,931. The most popular route, (London Heathrow - San Francisco), can usually be booked for £336.

  • 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 £355). Flying from London to Sonoma in July is currently the most expensive (average of £455). 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

Browse thousands of different options on Cheapflights for your next trip

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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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£238Average£547FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£336Average£489FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Aer LingusCheapest£353Average£556FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£353Average£551FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Scandinavian AirlinesCheapest£354Average£532FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
SWISSCheapest£359Average£441FlexibilityNo cancel feeOn-time79%
Search SWISS flights
TAP AIR PORTUGALCheapest£359Average£463FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
FinnairCheapest£374Average£511FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£376Average£561FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£377Average£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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