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Cheap flights from London to Sonoma from £360

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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
25 Apr — 2 May1
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 Monday

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 26 March 2026.

Wed 27/517:45
LHR
-
SFO
1 stop14h 20m
Delta
Tue 2/607:05
SFO
-
LHR
1 stop15h 40m
Delta
Deal found 25/3£385
Thu 23/413:25
LHR
-
SFO
1 stop17h 24m
Delta
Wed 27/517:37
SFO
-
LHR
1 stop13h 58m
Delta
Deal found 24/3£386
Thu 23/410:45
LHR
-
SFO
Nonstop11h 05m
British Airways
Thu 28/516:35
SFO
-
LHR
Nonstop10h 25m
British Airways
Deal found 24/3£391
Sat 25/409:20
LHR
-
SFO
1 stop17h 49m
Delta
Wed 27/513:35
SFO
-
LHR
1 stop18h 00m
Delta
Deal found 24/3£393
Wed 8/414:20
LHR
-
SFO
Nonstop11h 10m
British Airways
Fri 24/416:35
SFO
-
LHR
Nonstop10h 25m
British Airways
Deal found 24/3£395
Thu 25/610:00
LHR
-
SFO
1 stop19h 44m
United Airlines
Wed 22/706:10
SFO
-
LHR
1 stop15h 45m
United Airlines
Deal found 24/3£399
Fri 29/517:45
LHR
-
SFO
1 stop14h 20m
Delta
Mon 1/617:39
SFO
-
LHR
1 stop13h 56m
Delta
Deal found 25/3£400
Thu 28/511:45
LHR
-
SFO
1 stop16h 32m
Delta
Tue 2/607:00
SFO
-
LHR
1 stop17h 50m
Delta
Deal found 25/3£401
Fri 26/608:30
LHR
-
SFO
1 stop14h 57m
Air Canada
Tue 21/711:40
SFO
-
LHR
1 stop13h 55m
Air Canada
Deal found 24/3£405
Sun 24/512:25
LHR
-
SFO
1 stop16h 12m
Delta
Mon 1/617:39
SFO
-
LHR
1 stop13h 56m
Delta
Deal found 25/3£408
Tue 21/406:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Sat 25/416:45
SFO
-
LHR
1 stop17h 45m
Scandinavian Airlines
Deal found 23/3£414
Sun 24/512:25
LHR
-
SFO
1 stop16h 12m
Delta
Tue 2/608:50
SFO
-
LHR
1 stop16h 00m
Delta
Deal found 25/3£417

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 26 March 2026.

Round-trip from

£385

One-way from

£360

Popular in

December

Cheapest in

February

Average price

£484
Delta
  • Delta
  • 27/5-2/6
  • 2 total stops
  • 30h 00m total
  • London to Sonoma
Search Deals
15/5
  • 15/5
  • 3 total stops
  • 42h 10m total
  • London to Sonoma
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£21 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
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 26 March 2026.
Use the filters below to find and compare flights from London to Sonoma that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 11/5

08:40-16:15

1 stop15h 35m

San Francisco

Mon 18/5

16:35-11:10

Nonstop10h 35m

£456

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 8/4

08:40-16:15

1 stop15h 35m

San Francisco

Fri 24/4

05:00-12:25

1 stop23h 25m

£462

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 30/8

08:45-16:15

1 stop15h 30m

San Francisco

Sat 12/9

12:50-09:40

1 stop12h 50m

£462

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 7/4

20:05-16:15

1 stop28h 10m

San Francisco

Tue 14/4

13:00-17:50

2 stops20h 50m

£468

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 4/4

08:45-16:15

1 stop15h 30m

San Francisco

Tue 14/4

13:00-17:50

2 stops20h 50m

£470

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 6/5

06:15-15:55

1 stop17h 40m

San Francisco

Sun 10/5

21:45-21:40

1 stop15h 55m

£472

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 6/5

18:40-16:15

1 stop29h 35m

San Francisco

Sun 10/5

19:35-21:30

2 stops17h 55m

£482

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 24/4

13:00-16:10

Nonstop11h 10m

San Francisco

Thu 7/5

11:10-09:40

1 stop14h 30m

£485

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 6/4

10:35-13:40

Nonstop11h 05m

San Francisco

Fri 24/4

16:35-11:10

Nonstop10h 35m

£490
Fastest return journey

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 23/6

13:00-16:05

Nonstop11h 05m

San Francisco

Tue 30/6

16:45-11:10

Nonstop10h 25m

£496

Flights are sorted by cheapest return flights first.

Deals found on 21/3

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 13 March 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 £355). Flying from London to Sonoma in July is currently the most expensive (average of £437). 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 26 March 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.

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 26 March 2026.
See what other customers who have flown with Austrian Airlines,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.
Austrian Airlines
7.6
Good
902 reviews
Check prices

Comfort

7.3

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
Austrian Airlines
7.6
Good
902 reviews
Austrian Airlines
7.6
Good
902 reviews
Check prices

Comfort

7.3

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
Virgin Atlantic
7.5
Good
685 reviews
Austrian Airlines
7.6
Good
902 reviews
Check prices

Comfort

7.3

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
United Airlines
7.4
Good
9,482 reviews
Austrian Airlines
7.6
Good
902 reviews
Check prices

Comfort

7.3

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
Lufthansa
6.8
Okay
7,870 reviews
Austrian Airlines
7.6
Good
902 reviews
Check prices

Comfort

7.3

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.
British Airways
6.7
Okay
7,820 reviews
Austrian Airlines
7.6
Good
902 reviews
Check prices

Comfort

7.3

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.

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 £456, United Airlines can have you in Sonoma from London in 15h 35m. 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 TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at £271. WestJet flights start at £301 while deals on Scandinavian Airlines start at £304 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 Stansted - San Francisco.

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

    Consider KLM (93%), Air France (93%) or Delta (93%) 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 £376. On average you can expect to pay £2,056. The most popular route, (London Heathrow - San Francisco), can usually be booked for £366.

  • 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 £437). 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 26 March 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£321Average£586FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£336Average£467FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£347Average£540FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£351Average£505FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
SWISSCheapest£352Average£451FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Scandinavian AirlinesCheapest£359Average£551FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£361Average£455FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest£373Average£489FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
FinnairCheapest£374Average£541FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£375Average£536FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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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