London

$216+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — LON
Jun 17 — Jun 241
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Cheapflights Tip: The best prices from Sacramento Intl to London are usually found in October or September, booked 45 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 June 12, 2025.

Round-trip from

$871
(Air Canada)

One-way from

$216
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,392
From Sacramento Intl to London (LON)
One-way flight from Sacramento Intl to London (LON)
Highest demand for flights based on searches. 17% potential increase in price ($210 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Average for round-trip flights in June 2025

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 June 12, 2025.

This Air Canada deal was found by Cheapflights users on 6/10. 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.
Sun 8/39:00 amSMF - LHR
2 stops17h 00mAir Canada
Sat 8/163:50 pmLHR - SMF
2 stops31h 29mAir Canada
Deal found 6/10$871
This British Airways deal was found by Cheapflights users on 6/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/256:34 pmSMF - LHR
1 stop13h 31mBritish Airways
Fri 8/12:45 pmLHR - SMF
1 stop15h 43mBritish Airways
Deal found 6/10$881
This Iberia deal was found by Cheapflights users on 6/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/206:00 amSMF - LHR
1 stop16h 25mIberia
Sat 8/23:10 pmLHR - SMF
1 stop15h 32mIberia
Deal found 6/10$882
This Delta deal was found by Cheapflights users on 6/10. 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.
Mon 7/2111:10 amSMF - LHR
2 stops18h 00mDelta
Fri 8/812:25 pmLHR - SMF
2 stops18h 55mDelta
Deal found 6/10$885
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2510:59 amSMF - LHR
2 stops16h 36mUnited Airlines
Fri 8/18:30 amLHR - SMF
2 stops17h 02mUnited Airlines
Deal found 6/11$886
This FlightHub deal was found by Cheapflights users on 6/11. 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.
Wed 10/82:54 pmSMF - LGW
2 stops15h 46mIcelandair
Tue 10/2811:55 amLGW - SMF
2 stops16h 57mIcelandair
Deal found 6/11$896
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
Thu 7/3112:58 pmSMF - LCY
2 stops19h 27mLufthansa
Tue 8/198:45 amLCY - SMF
2 stops21h 09mLufthansa
Deal found 6/12$897
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/28:00 amSMF - LCY
2 stops20h 30mMultiple Airlines
Tue 9/309:25 amLCY - SMF
3 stops21h 45mMultiple Airlines
Deal found 6/10$899
This Scandinavian Airlines deal was found by Cheapflights users on 6/10. 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 9/212:55 pmSMF - LHR
3 stops21h 35mScandinavian Airlines
Tue 9/3010:20 amLHR - SMF
2 stops19h 54mScandinavian Airlines
Deal found 6/10$900
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:30 amSMF - SEN
3 stops31h 20mMultiple Airlines
Mon 8/2511:30 amSEN - SMF
3 stops44h 26mMultiple Airlines
Deal found 6/10$900
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/217:26 pmSMF - LGW
3 stops35h 14mMultiple Airlines
Sun 7/271:00 pmLGW - SMF
3 stops30h 06mMultiple Airlines
Deal found 6/11$904
This SWISS deal was found by Cheapflights users on 6/10. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3012:58 pmSMF - LGW
2 stops20h 57mSWISS
Thu 8/76:40 pmLGW - SMF
2 stops34h 26mSWISS
Deal found 6/10$908

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 June 12, 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

Sun 8/3

9:00 am-10:00 am

2 stops17h 00m

London Heathrow

Sat 8/16

3:50 pm-3:19 pm

2 stops31h 29m

$871

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Fri 7/25

6:34 pm-4:05 pm

1 stop13h 31m

London Heathrow

Fri 8/1

2:45 pm-10:28 pm

1 stop15h 43m

$881

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Sun 7/20

6:00 am-6:25 am

1 stop16h 25m

London Heathrow

Sat 8/2

3:10 pm-10:42 pm

1 stop15h 32m

$882

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Mon 7/21

11:10 am-1:10 pm

2 stops18h 00m

London Heathrow

Fri 8/8

12:25 pm-11:20 pm

2 stops18h 55m

$885

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Fri 7/25

10:59 am-11:35 am

2 stops16h 36m

London Heathrow

Fri 8/1

8:30 am-5:32 pm

2 stops17h 02m

$886

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Wed 10/8

2:54 pm-2:40 pm

2 stops15h 46m

London Gatwick

Tue 10/28

11:55 am-9:52 pm

2 stops16h 57m

$896

SacramentoLondon

SMF - LCY

SMFLCY

Sacramento Intl

Thu 7/31

12:58 pm-4:25 pm

2 stops19h 27m

London City

Tue 8/19

8:45 am-9:54 pm

2 stops21h 09m

$897

SacramentoLondon

SMF - LCY

SMFLCY

Sacramento Intl

Tue 9/2

8:00 am-12:30 pm

2 stops20h 30m

London City

Tue 9/30

9:25 am-9:46 pm

2 stops20h 21m

$899

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Tue 9/2

12:55 pm-6:30 pm

3 stops21h 35m

London Heathrow

Tue 9/30

10:20 am-10:14 pm

2 stops19h 54m

$900

SacramentoLondon

SMF - SEN

SMFSEN

Sacramento Intl

Wed 8/20

5:30 am-8:50 pm

3 stops31h 20m

London Southend

Mon 8/25

11:30 am-11:56 pm

3 stops44h 26m

$900

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 55 results
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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 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 June 9, 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 45 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, November is the cheapest month in which you can book a flight from Sacramento to London (average of $661). Flying from Sacramento to London in June is currently the most expensive (average of $1,108). 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 June 12, 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 23% 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 June 23, 2024.

Travelers seeking maximum savings on their Sacramento to London flight should consider departing on Friday evenings 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.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 June 12, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from Sacramento to London to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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.
8.0
Very good
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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.
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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.
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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.
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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.
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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 11 different airlines.

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

    Air Canada, at $871, was found to be the cheapest airline from Sacramento to London.Alternate airlines to your destination round-trip include British Airways and Iberia. Air Canada is 10% 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 JetBlue. According to our data, you can fly for as low as $369. Users have also found prices from $413 and $458 on Icelandair and Air Canada, respectively.

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

  • 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, November is the cheapest month in which you can book a flight from Sacramento to London (average of $661). Flying from Sacramento to London in June is currently the most expensive (average of $1,108). 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 Sacramento?

Book flights to Sacramento if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Gatwick
Orpington
Watford
Croydon
Folkestone
Borehamwood
Sutton
Aylesbury
Chelmsford
Brentwood
Chichester
Wembley
Arundel

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sacramento to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Sacramento to London

Discover the top 10 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$578Average$943FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$643Average$965FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$647Average$887FlexibilityNo cancel feeOn-time70%
IberiaCheapest$677Average$1,087FlexibilityNo cancel feeOn-time77%
DeltaCheapest$683Average$931FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$683Average$770FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$702Average$1,013FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$703Average$971FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$703Average$963FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$738Average$947FlexibilityNo cancel feeOn-time62%

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