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$381+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — LON
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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Cheapflights Tip: The best prices from Sacramento Intl to London are usually found in October or September, booked 7 days in advance, depart on a Tuesday or Sunday and return on a Tuesday

Cheap 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 November 20, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$576
(FlightHub)

One-way from

$381
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$867
Provider with most accurate pricing for Sacramento Intl-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Sacramento Intl-London (LON) flights.
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From Sacramento Intl to London (LON)
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One-way flight from Sacramento Intl to London (LON)
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Highest demand for flights based on searches. 19% potential increase in price ($225 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 20, 2025.

This Virgin Atlantic deal was found by Cheapflights users on 11/18. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/72:35 pmSMF - LHR
1 stop18h 15mVirgin Atlantic
Thu 12/1811:20 amLHR - SMF
1 stop16h 18mVirgin Atlantic
Deal found 11/18$647
This Scandinavian Airlines deal was found by Cheapflights users on 11/19. 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.
Thu 11/272:34 pmSMF - LHR
2 stops23h 06mScandinavian Airlines
Sat 12/66:40 amLHR - SMF
3 stops24h 19mScandinavian Airlines
Deal found 11/19$663
This Delta deal was found by Cheapflights users on 11/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:25 amSMF - LHR
1 stop19h 05mDelta
Tue 12/26:30 amLHR - SMF
2 stops20h 31mDelta
Deal found 11/18$669
This Air Canada deal was found by Cheapflights users on 11/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:05 pmSMF - LHR
2 stops55h 05mAir Canada
Fri 1/92:30 pmLHR - SMF
1 stop29h 22mAir Canada
Deal found 11/19$723
This FlightHub deal was found by Cheapflights users on 11/19. 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 12/82:35 pmSMF - LHR
2 stops23h 05mScandinavian Airlines
Thu 12/116:40 amLHR - SMF
2 stops24h 19mScandinavian Airlines
Deal found 11/19$727
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:35 amSMF - LHR
1 stop12h 50mLufthansa
Thu 12/117:40 amLHR - SMF
2 stops18h 06mLufthansa
Deal found 11/18$750
This Cheapflightsfares deal was found by Cheapflights users on 11/18. 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 12/21:06 pmSMF - LHR
1 stop12h 34mLufthansa
Wed 12/107:40 amLHR - SMF
2 stops20h 00mLufthansa
Deal found 11/18$792
This Cheapflightsfares deal was found by Cheapflights users on 11/18. 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 12/22:26 pmSMF - LCY
2 stops18h 14mLufthansa
Wed 12/109:50 amLCY - SMF
2 stops17h 50mLufthansa
Deal found 11/18$844
This oojo deal was found by Cheapflights users on 11/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/28:16 amSMF - LGW
2 stops18h 39mIcelandair
Wed 12/1011:55 amLGW - SMF
2 stops20h 04mIcelandair
Deal found 11/19$884
This oojo deal was found by Cheapflights users on 11/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:00 amSMF - LGW
2 stops19h 55mIcelandair
Tue 12/911:55 amLGW - SMF
2 stops20h 04mIcelandair
Deal found 11/19$934
This Cheapflightsfares deal was found by Cheapflights users on 11/19. 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.
Mon 12/158:45 amSMF - LCY
2 stops24h 55mLufthansa
Thu 1/159:40 amLCY - SMF
2 stops17h 59mLufthansa
Deal found 11/19$1,041
This oojo deal was found by Cheapflights users on 11/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:15 amSMF - LGW
2 stops18h 40mIcelandair
Sat 12/611:55 amLGW - SMF
2 stops20h 04mIcelandair
Deal found 11/19$1,043

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 November 20, 2025.
Use the filters below to find and compare flights from Sacramento to London that are best for you.

Fly from

Sacramento

Fly to

London

Route

Depart

Return

Price

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 2/18

2:59 pm-5:40 pm

2 stops18h 41m

London Heathrow

Wed 2/25

10:20 am-10:20 pm

2 stops20h 00m

$599

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 1/7

12:30 pm-11:50 am

1 stop15h 20m

London Heathrow

Wed 1/21

2:30 pm-11:52 am

1 stop29h 22m

$616

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Thu 1/29

8:30 pm-7:25 am

1 stop26h 55m

London Heathrow

Sun 2/15

2:30 pm-11:52 am

1 stop29h 22m

$626

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Thu 1/22

11:10 am-12:00 pm

1 stop16h 50m

London Heathrow

Fri 1/30

7:40 am-5:46 pm

2 stops18h 06m

$626

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 1/28

8:45 am-9:40 am

1 stop16h 55m

London Heathrow

Sun 2/1

7:40 am-7:39 pm

2 stops19h 59m

$626

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Sun 2/8

12:30 pm-11:50 am

1 stop15h 20m

London Heathrow

Sat 2/21

2:30 pm-11:52 am

1 stop29h 22m

$632

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 2/4

11:11 am-9:35 pm

3 stops26h 24m

London Heathrow

Tue 2/10

7:05 am-10:24 pm

3 stops23h 19m

$636

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Tue 2/17

1:07 pm-9:40 am

1 stop12h 33m

London Heathrow

Sat 2/28

10:05 am-4:06 pm

1 stop14h 01m

$638

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 2/18

12:30 pm-11:50 am

1 stop15h 20m

London Heathrow

Sun 2/22

2:30 pm-11:52 am

1 stop29h 22m

$639

SacramentoLondon

SMF - LCY

SMFLCY

Sacramento Intl

Tue 1/20

11:10 am-5:35 pm

2 stops22h 25m

London City

Fri 1/30

9:55 am-7:39 pm

2 stops17h 44m

$653

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 58 results
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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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
GotogatePrice Accuracy3 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 Gotogate to be most consistent on Cheapflights vs. Gotogate Users can find the same prices on Sacramento-London flight deals on Cheapflights vs. Gotogate >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 Gotogate the most. Gotogate 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 November 14, 2025.

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, December is the cheapest month in which you can book a flight from Sacramento to London (average of $460). Flying from Sacramento to London in June is currently the most expensive (average of $806). 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 SMF to LON?

Find hourly flight availability from Sacramento to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2025.

When flying from Sacramento to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 36% versus a flight in the evening.

What is the cheapest day to fly from Sacramento to London?

Use this chart to determine the cheapest time to fly round-trip from Sacramento to London. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Sacramento to London flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Sacramento to London?

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 November 20, 2025.
Read reviews from past customers who have flown Delta, Virgin Atlantic, and United 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
8,002 reviews

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

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
8,002 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

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
673 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

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
9,028 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

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
7.2
Good
11,047 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

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
2,902 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

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 Scandinavian Airlines, United Airlines, and Lufthansa fly from Sacramento to London in about 16h 50m. The time it takes to get you to your destination can typically vary by up to 10h 05m. 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?

    Air Canada, at $615, was found to be the cheapest airline from Sacramento to London.Alternate airlines to your destination round-trip include Virgin Atlantic and Delta. Air Canada is 35% 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 United Airlines. According to our data, you can fly for as low as $399. Users have also found prices from $629 and $713 on Delta and Icelandair, 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, December is the cheapest month in which you can book a flight from Sacramento to London (average of $460). Flying from Sacramento to London in June is currently the most expensive (average of $806). 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
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone
Eastbourne
Sutton

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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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$615Average$1,029FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$630Average$962FlexibilityNo cancel feeOn-time72%
DeltaCheapest$679Average$1,037FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$683Average$786FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$689Average$970FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$697Average$996FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$702Average$906FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$743Average$1,058FlexibilityNo cancel feeOn-time62%
IberiaCheapest$825Average$1,054FlexibilityNo cancel feeOn-time77%

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