HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$263+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — LON
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sacramento to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Sacramento Intl to London are usually found in October or September, booked 8 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 August 14, 2025.

Round-trip from

$564
(Trip.com)

One-way from

$263
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$872
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. 16% potential increase in price ($191 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 August 14, 2025.

This Trip.com deal was found by Cheapflights users on 8/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:30 amSMF - LGW
2 stops20h 25mMultiple Airlines
Wed 9/1710:55 amLGW - SMF
2 stops29h 43mMultiple Airlines
Deal found 8/13$564
This lol.travel deal was found by Cheapflights users on 8/12. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/64:13 pmSMF - LHR
1 stop33h 27mUnited Airlines
Fri 9/1910:00 amLHR - SMF
1 stop20h 06mUnited Airlines
Deal found 8/12$588
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:06 amSMF - LGW
2 stops18h 29mAmerican Airlines
Wed 9/1710:40 amLGW - SMF
2 stops20h 00mAmerican Airlines
Deal found 8/13$592
This Gotogate deal was found by Cheapflights users on 8/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/64:05 pmSMF - LHR
2 stops35h 45mAir Canada
Fri 9/192:10 pmLHR - SMF
1 stop15h 39mAir Canada
Deal found 8/12$595
This Booking.com deal was found by Cheapflights users on 8/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:46 amSMF - LHR
2 stops18h 49mAir Canada
Thu 9/258:40 amLHR - SMF
2 stops21h 09mAir Canada
Deal found 8/11$600
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Mon 10/274:05 pmSMF - LHR
1 stop12h 45mUnited Airlines
Tue 11/111:25 pmLHR - SMF
2 stops41h 00mUnited Airlines
Deal found 8/14$602
This Air Canada deal was found by Cheapflights users on 8/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/19:00 amSMF - LHR
2 stops16h 35mMultiple Airlines
Wed 10/158:40 amLHR - SMF
2 stops20h 00mMultiple Airlines
Deal found 8/12$603
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Mon 8/189:05 amSMF - LHR
1 stop19h 15mUnited Airlines
Tue 8/262:05 pmLHR - SMF
2 stops33h 06mUnited Airlines
Deal found 8/11$606
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 11/125:00 amSMF - LHR
1 stop20h 40mUnited Airlines
Wed 11/191:25 pmLHR - SMF
2 stops41h 10mUnited Airlines
Deal found 8/14$607
This Mytrip deal was found by Cheapflights users on 8/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:30 amSMF - LGW
2 stops20h 25mMultiple Airlines
Wed 9/1010:55 amLGW - SMF
2 stops29h 43mMultiple Airlines
Deal found 8/12$607
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/74:13 pmSMF - LHR
1 stop33h 27mUnited Airlines
Thu 9/252:10 pmLHR - SMF
1 stop33h 04mUnited Airlines
Deal found 8/12$608
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 8/279:20 amSMF - LHR
1 stop18h 25mUnited Airlines
Wed 9/248:40 amLHR - SMF
2 stops23h 03mUnited Airlines
Deal found 8/14$611

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 August 14, 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 - LGW

SMFLGW

Sacramento Intl

Wed 9/10

6:30 am-10:55 am

2 stops20h 25m

London Gatwick

Wed 9/17

10:55 am-8:38 am

2 stops29h 43m

$564

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Sat 9/6

4:13 pm-9:40 am

1 stop33h 27m

London Heathrow

Fri 9/19

10:00 am-10:06 pm

1 stop20h 06m

$588

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Wed 9/10

6:06 am-8:35 am

2 stops18h 29m

London Gatwick

Wed 9/17

10:40 am-10:40 pm

2 stops20h 00m

$592

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Mon 10/27

4:05 pm-11:50 am

1 stop12h 45m

London Heathrow

Tue 11/11

1:25 pm-6:56 pm

2 stops37h 31m

$602

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Tue 10/28

4:05 pm-11:50 am

1 stop12h 45m

London Heathrow

Tue 11/18

1:25 pm-10:25 pm

2 stops41h 00m

$602

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 10/8

4:05 pm-1:20 pm

1 stop13h 15m

London Heathrow

Wed 10/22

12:40 pm-11:48 am

2 stops31h 08m

$602

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 10/8

4:05 pm-1:20 pm

1 stop13h 15m

London Heathrow

Tue 10/14

10:50 am-9:46 pm

2 stops18h 56m

$606

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Mon 8/18

9:05 am-12:20 pm

1 stop19h 15m

London Heathrow

Tue 8/26

2:05 pm-3:11 pm

2 stops33h 06m

$606

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 10/1

6:00 am-2:10 pm

1 stop24h 10m

London Heathrow

Wed 10/15

2:10 pm-3:14 pm

1 stop33h 04m

$607

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Wed 9/3

6:30 am-10:55 am

2 stops20h 25m

London Gatwick

Wed 9/10

10:55 am-8:38 am

2 stops29h 43m

$607

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 60 results
1
2
3
...
6

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 August 8, 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 8 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 $1,097). 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 August 14, 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 December 16, 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.

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 August 14, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and Virgin Atlantic 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
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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
7.4
Good
657 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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
2,913 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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.

  • 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 British Airways and Virgin Atlantic. Air Canada is 37% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, 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 $1,097). 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
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Orpington
Watford
Gatwick
Borehamwood
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Arundel
Eastbourne
Milton Keynes
Sutton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sacramento to London

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
San Francisco to Gatwick flights
San Francisco to London City flights
Los Angeles to London City flights
Los Angeles to Gatwick flights
Ontario to Heathrow flights
San Diego to Heathrow flights
Los Angeles to Luton flights
San Francisco to Stansted flights
San Francisco to Luton flights
Los Angeles to Stansted flights
Las Vegas to Heathrow flights
Oakland to Heathrow flights
San Diego to Gatwick flights
Los Angeles to Edinburgh flights
Sacramento to Heathrow flights
San Jose to Heathrow flights
San Diego to London City flights
San Francisco to Edinburgh flights
Sacramento to Gatwick flights
Santa Ana to Heathrow flights
Las Vegas to London City flights
San Jose to Gatwick flights
Las Vegas to Gatwick flights
Los Angeles to Manchester flights
Santa Rosa to Heathrow flights
Oakland to Gatwick flights
San Francisco to Manchester flights
Los Angeles to Southend flights
Sacramento to London City flights
Las Vegas to Luton flights
Reno to Heathrow flights
Burbank to Heathrow flights
San Diego to Edinburgh flights
San Francisco to Southampton flights
Reno to Gatwick flights
San Francisco to Birmingham flights
Los Angeles to Southampton flights
Ontario to Gatwick flights
Reno to London City flights
Las Vegas to Stansted flights
Las Vegas to Edinburgh flights
San Diego to Stansted flights
Long Beach to Heathrow flights
Ontario to Edinburgh flights
Fresno to Heathrow flights
Santa Ana to Manchester flights
Palm Springs to Heathrow flights
Oakland to London City flights

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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$615Average$965FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$642Average$936FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$674Average$998FlexibilityNo cancel feeOn-time72%
Scandinavian AirlinesCheapest$683Average$770FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$703Average$970FlexibilityNo cancel feeOn-time69%
DeltaCheapest$707Average$1,027FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$738Average$966FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$751Average$941FlexibilityNo cancel feeOn-time71%
IberiaCheapest$889Average$1,257FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.