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Cheap flights from Sacramento to London from £243

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — LON
23 Jun — 30 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sacramento to London

Enter your travel dates to find the best prices.

Cheapest flights from Sacramento to London
Explore the most affordable flight options available from Sacramento to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 May 2026.

Mon 3/818:37
SMF
-
LHR
1 stop31h 03m
United Airlines
Tue 18/815:05
LHR
-
SMF
1 stop34h 18m
United Airlines
Deal found 20/5£721
Thu 27/806:56
SMF
-
LHR
1 stop20h 24m
Delta
Sat 12/906:30
LHR
-
SMF
2 stops21h 49m
Delta
Deal found 20/5£724
Tue 4/806:00
SMF
-
LHR
2 stops16h 30m
Air Canada
Fri 14/814:05
LHR
-
SMF
2 stops31h 12m
Air Canada
Deal found 19/5£725
Fri 6/1111:50
SMF
-
LHR
2 stops21h 00m
Lufthansa
Sat 14/1106:30
LHR
-
SMF
2 stops16h 52m
Lufthansa
Deal found 23/5£726
Sun 9/806:00
SMF
-
LHR
2 stops16h 30m
Multiple Airlines
Mon 17/820:25
LHR
-
SMF
2 stops29h 09m
Multiple Airlines
Deal found 20/5£726
Sun 30/808:00
SMF
-
LHR
1 stop23h 05m
Alaska Airlines
Sat 5/917:00
LHR
-
SMF
1 stop27h 06m
Alaska Airlines
Deal found 22/5£727
Tue 15/1215:53
SMF
-
LCY
2 stops17h 47m
Lufthansa
Tue 29/1209:50
LCY
-
SMF
2 stops21h 38m
Lufthansa
Deal found 24/5£729
Sun 16/814:59
SMF
-
LHR
1 stop15h 26m
Iberia
Sat 5/911:30
LHR
-
SMF
2 stops19h 39m
Iberia
Deal found 21/5£729
Mon 24/809:20
SMF
-
LCY
2 stops19h 15m
SWISS
Tue 1/919:15
LCY
-
SMF
2 stops31h 03m
SWISS
Deal found 19/5£729
Sat 26/1213:40
SMF
-
LHR
1 stop33h 25m
Delta
Fri 8/111:05
LHR
-
SMF
1 stop17h 18m
Delta
Deal found 21/5£730
Tue 13/1007:00
SMF
-
LCY
2 stops17h 40m
SWISS
Wed 21/1009:15
LCY
-
SMF
2 stops21h 31m
SWISS
Deal found 20/5£730
Wed 2/906:30
SMF
-
LHR
1 stop16h 55m
United Airlines
Fri 4/911:25
LHR
-
SMF
1 stop17h 35m
United Airlines
Deal found 22/5£731

Find flight deals from Sacramento to London

Discover tips and strategies to find the most affordable flight options for your journey from Sacramento (SMF) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 24 May 2026.

Round-trip from

£721

One-way from

£243

Popular in

June

Cheapest in

March

Average price

£701
United Airlines
  • United Airlines
  • 3/8-18/8
  • 2 total stops
  • 65h 21m total
  • Sacramento to London
Search Deals
British Airways
  • British Airways
  • 9/11
  • 1 total stop
  • 15h 00m total
  • Sacramento to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£127 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sacramento to London 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 24 May 2026.
Use the filters below to find and compare flights from Sacramento to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Sat 22/8

07:00-08:20

2 stops17h 20m

London Gatwick

Tue 1/9

09:25-22:48

2 stops21h 23m

£752

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Sun 4/10

07:00-08:25

2 stops17h 25m

London Gatwick

Fri 16/10

09:25-22:46

2 stops21h 21m

£796

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Tue 20/10

14:22-18:50

2 stops20h 28m

London Gatwick

Thu 5/11

09:55-21:55

2 stops20h 00m

£796

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Sat 8/8

07:50-09:20

2 stops17h 30m

London Gatwick

Sun 16/8

10:25-20:58

2 stops18h 33m

£808

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Fri 17/7

18:37-21:25

2 stops18h 48m

London Heathrow

Thu 30/7

14:05-21:12

2 stops39h 07m

£817

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 8/7

06:00-10:00

2 stops20h 00m

London Heathrow

Sun 19/7

09:30-22:15

2 stops44h 45m

£852

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Thu 30/7

13:00-12:25

1 stop15h 25m

London Heathrow

Sat 8/8

14:05-22:15

2 stops40h 10m

£866

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 8/7

05:00-06:30

2 stops17h 30m

London Heathrow

Sat 18/7

07:45-21:12

2 stops21h 27m

£870

SacramentoLondon

SMF - LCY

SMFLCY

Sacramento Intl

Mon 5/10

09:41-12:35

2 stops18h 54m

London City

Mon 19/10

09:15-22:46

2 stops21h 31m

£882

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Thu 27/8

07:00-08:25

2 stops17h 25m

London Gatwick

Mon 7/9

09:25-22:48

2 stops21h 23m

£886

Flights are sorted by cheapest return flights first.

Deals found on 19/5

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Sacramento to London

Have a flexible travel schedule? Discover the best time to fly to London from Sacramento 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 Sacramento to London

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

Currently, July is the cheapest month in which you can book a flight from Sacramento to London (average of £150). Flying from Sacramento to London in June is currently the most expensive (average of £606). 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.

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

What’s the top stopover airport for flights from Sacramento to London?

Share of one-stop return flights from Sacramento to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Denver (DEN) – chosen by Cheapflights users on 56% of one-stop itineraries from Sacramento to London on Cheapflights.

What’s the cheapest stopover airport for flights from Sacramento to London?

Average return fare for one-stop flights from Sacramento to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Salt Lake City (SLC) is the most affordable one-stop option, with an average return flight price of £441.

What’s the fastest stopover option from Sacramento to London?

Shortest average travel time for one-stop one-way flights from Sacramento to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for one-stop routes: 12h 12m.

Which airport typically offers the quickest stopover for flights from Sacramento to London?

Average stopover duration for one-stop one-way flights from Sacramento to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Salt Lake City (SLC) offer the fastest connection on this route, with an average stopover time of 1h 05m.

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

To ensure you get the cheapest price possible for a flight from Sacramento to London, you should look to book at least 6 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

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

  • What airport do you fly from for flights from Sacramento to London?

    Sacramento Intl (SMF), located 9.4 mi from the city center, is the airport you fly out of when you book flights from Sacramento to London. 0 airlines have flights from Sacramento Intl to London on a regular basis. Booking flights from Sacramento Intl to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.

  • How long is the flight from Sacramento to London?

    For as low as £752, SWISS can have you in London from Sacramento in 17h 20m. There are 5289 mi between Sacramento and London. This flight may include one or multiple stops.

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

    When deciding which route to take from Sacramento to London consider Sacramento Intl - London Heathrow, Sacramento Intl - London Gatwick or Sacramento Intl - London City as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sacramento to London 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 Sacramento to London?

    Currently, July is the cheapest month in which you can book a flight from Sacramento to London (average of £150). Flying from Sacramento to London in June is currently the most expensive (average of £606). 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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