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$304+ Cheap flights from Sacramento (SMF) to London (LON)

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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — LON
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheap flight deals from Sacramento to London

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 March 22, 2026.

This FlightHub deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:10 am
SMF
-
LHR
2 stops22h 30m
Scandinavian Airlines
Mon 10/126:40 am
LHR
-
SMF
2 stops23h 36m
Scandinavian Airlines
Deal found 3/17$742
This Scandinavian Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:10 am
SMF
-
LHR
2 stops23h 20m
Scandinavian Airlines
Tue 9/156:40 am
LHR
-
SMF
3 stops23h 33m
Scandinavian Airlines
Deal found 3/17$754
This KAYAK deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:29 am
SMF
-
LHR
2 stops44h 31m
Scandinavian Airlines
Mon 5/47:30 pm
LHR
-
SMF
2 stops35h 21m
Scandinavian Airlines
Deal found 3/17$759
This Scandinavian Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:55 am
SMF
-
LHR
2 stops44h 05m
Scandinavian Airlines
Tue 11/176:40 am
LHR
-
SMF
2 stops23h 36m
Scandinavian Airlines
Deal found 3/16$761
This Cheapflightsfares deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:00 pm
SMF
-
LHR
2 stops21h 40m
Lufthansa
Sun 8/237:25 am
LHR
-
SMF
2 stops23h 30m
Lufthansa
Deal found 3/18$770
This Cheapflightsfares deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:50 pm
SMF
-
LHR
2 stops16h 50m
Lufthansa
Tue 8/256:55 am
LHR
-
SMF
2 stops18h 39m
Lufthansa
Deal found 3/17$783
This Cheapflightsfares deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:50 pm
SMF
-
LHR
2 stops16h 50m
Lufthansa
Wed 9/26:55 am
LHR
-
SMF
2 stops22h 17m
Lufthansa
Deal found 3/18$784
This KAYAK deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/212:42 pm
SMF
-
LHR
2 stops41h 18m
Scandinavian Airlines
Mon 5/47:30 pm
LHR
-
SMF
2 stops35h 21m
Scandinavian Airlines
Deal found 3/17$789
This FlightHub deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:00 am
SMF
-
LHR
1 stop17h 10m
British Airways
Wed 8/2610:50 am
LHR
-
SMF
2 stops20h 42m
British Airways
Deal found 3/17$790
This FlightHub deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:50 pm
SMF
-
LHR
1 stop14h 00m
British Airways
Wed 10/76:15 am
LHR
-
SMF
2 stops25h 17m
British Airways
Deal found 3/16$792
This Cheapflightsfares deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/122:12 pm
SMF
-
LCY
2 stops19h 43m
Lufthansa
Wed 8/269:15 am
LCY
-
SMF
2 stops19h 57m
Lufthansa
Deal found 3/20$827
This KAYAK deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:09 am
SMF
-
LGW
2 stops25h 46m
SWISS
Wed 8/266:35 pm
LGW
-
SMF
2 stops35h 47m
SWISS
Deal found 3/20$833

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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$742
(FlightHub)

One-way from

$304
(FlightHub)

Popular in

June

Cheapest in

March

Average price

$649
Provider with most accurate pricing for Sacramento Intl-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sacramento Intl-London (LON) flights.
Search Deals
From Sacramento Intl to London (LON)
Search Deals
One-way flight from Sacramento Intl to London (LON)
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated March 22, 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 round-trip

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Tue 9/1

9:00 am-12:20 pm

1 stop19h 20m

London Heathrow

Tue 9/8

10:50 am-11:56 pm

2 stops21h 06m

$822

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Sat 9/5

6:50 pm-7:25 am

1 stop28h 35m

London Heathrow

Fri 9/11

5:40 pm-9:10 pm

1 stop35h 30m

$838

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Tue 4/14

6:00 am-8:05 am

1 stop18h 05m

London Heathrow

Tue 4/21

6:10 am-7:40 pm

2 stops21h 30m

$842

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Mon 8/17

6:10 am-3:05 pm

1 stop24h 55m

London Heathrow

Mon 8/31

5:00 pm-12:01 pm

1 stop27h 01m

$893

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Mon 4/13

1:55 pm-5:50 pm

2 stops19h 55m

London Gatwick

Tue 4/28

9:25 am-10:48 pm

2 stops21h 23m

$893
Quickest round-trip

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Sat 5/2

11:59 pm-9:20 pm

1 stop13h 21m

London Heathrow

Wed 5/13

8:00 am-6:46 pm

1 stop18h 46m

$912

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Fri 8/21

11:53 am-7:25 am

1 stop35h 32m

London Heathrow

Sun 8/23

3:05 pm-5:23 pm

1 stop34h 18m

$929

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Sun 4/19

1:55 pm-5:50 pm

2 stops19h 55m

London Gatwick

Tue 5/5

9:25 am-10:45 pm

2 stops21h 20m

$933

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Mon 4/20

1:55 pm-5:50 pm

2 stops19h 55m

London Gatwick

Sat 5/2

9:25 am-8:42 pm

2 stops19h 17m

$941

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Sun 4/19

1:55 pm-8:20 am

2 stops34h 25m

London Gatwick

Sun 4/26

6:35 pm-8:31 pm

2 stops33h 56m

$943

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Sacramento to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sacramento to London in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sacramento-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sacramento-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sacramento-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sacramento-London flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sacramento-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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

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

Use this chart to determine the optimal time to book a round-trip flight from Sacramento to London. Price data was last updated on March 13, 2026.

The price you pay for your flight from Sacramento to London may vary depending on when you book. For the best chance of a lower fare, look to book 7 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 Sacramento to London?

Currently, October is the cheapest month in which you can book a flight from Sacramento to London (average of $497). Flying from Sacramento to London in June is currently the most expensive (average of $696). 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.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated March 22, 2026.
Read reviews from past customers who have flown Delta,Virgin Atlantic, andUnited Airlines from Sacramento to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,313 reviews

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
7.9
Good
8,313 reviews
Delta
7.9
Good
8,313 reviews

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.5
Good
682 reviews
Delta
7.9
Good
8,313 reviews

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
9,452 reviews
Delta
7.9
Good
8,313 reviews

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
JetBlue
7.2
Good
2,909 reviews
Delta
7.9
Good
8,313 reviews

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.1
Good
11,488 reviews
Delta
7.9
Good
8,313 reviews

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    If you book a flight to London from Sacramento, you will be flying from Sacramento Intl, which is the city’s only airport. Sacramento Intl (SMF) is located 9.4 mi from the center of Sacramento. There are 0 flights from Sacramento Intl to London per day from 9 different airlines.

  • How long is the flight from Sacramento to London?

    Airlines like United Airlines, British Airways, and Alaska Airlines fly from Sacramento to London in about 18h 05m. The time it takes to get you to your destination can typically vary by up to 6h 50m. There are 5265 mi between Sacramento and London. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Sacramento to London round-trip?

    Virgin Atlantic, at $599, was found to be the cheapest airline from Sacramento to London.Alternate airlines to your destination round-trip include Air Canada and Lufthansa. Virgin Atlantic is 30% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Sacramento to London one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $222. Users have also found prices from $222 and $272 on Delta and British Airways, respectively.

  • 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 vacation 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, October is the cheapest month in which you can book a flight from Sacramento to London (average of $497). Flying from Sacramento to London in June is currently the most expensive (average of $696). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Borehamwood
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Sutton
Slough

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from Sacramento to London

Discover the top 9 airlines that operate flights from Sacramento to London. 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 2,558,603 searches. Data last updated March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$599Average$896FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$615Average$965FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$624Average$927FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$624Average$896FlexibilityNo cancel feeOn-time69%
DeltaCheapest$625Average$956FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$678Average$969FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$679Average$982FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$729Average$942FlexibilityNo cancel feeOn-time77%
JetBlueCheapest$743Average$1,005FlexibilityNo cancel feeOn-time62%

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