Which airport is the most popular layover for flights between Sacramento and London?

Seattle (SEA) was the most common stop: 20% of momondo users choosing 1-stop flights on this route connected there.

What is the cheapest airline that flies from Sacramento Intl to London?

SWISS, JetBlue, and Delta are the most popular carriers operating from Sacramento Intl to London

Which layover airport offers the lowest fares from Sacramento to London?

Flights via New York (JFK) offer the lowest average round-trip price of $388.

Which layover airport has the shortest connection time from Sacramento to London?

Seattle (SEA) has the shortest average layover time for this route: 1h 03m.

What airlines fly to London?

United Airlines, British Airways and Virgin Atlantic are the top three most popular airlines that fly to London from Sacramento according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to London. Keep in mind that there are 21 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Sacramento to London?

Flights connecting via Seattle (SEA) have the shortest average one-way travel time: 12h 11m.

When did momondo last update prices for flights from Sacramento Intl Airport to London?

Prices for flights from Sacramento Intl Airport to London refresh daily.

How many operators does momondo search for flights from Sacramento Intl Airport to London?

As of July 2026, there are 6 operators available to choose from for flights from Sacramento Intl Airport to London.

How old do you have to be to fly from Sacramento Intl Airport to London?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sacramento Intl Airport to London.

What documentation or ID do you need to fly to London?

The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$246 Cheap Flights from Sacramento to London in 2026

Q: What is the typical price of a round-trip flight between Sacramento and London?

Prices are currently typical for flights on this route. Typical prices usually range from $566 to $1,173. The lowest price recently found on this route was $861.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sacramento to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 pm - 10:00 am

SMF

LHR

32h 00m

2 stops

6:35 am - 3:21 pm

LHR

SMF

39h 46m

2 stops

$861Multiple Airlines

Tue, Oct 20 - Thu, Oct 29

7:00 am - 6:25 am

SMF

LHR

15h 25m

1 stop

8:25 pm - 7:37 pm

LHR

SMF

30h 12m

2 stops

$863KLM

Tue, Oct 20 - Thu, Oct 29

11:07 am - 9:00 am

SMF

LHR

13h 53m

1 stop

9:15 am - 11:59 pm

LHR

SMF

22h 44m

2 stops

$869Iberia

Wed, Oct 14 - Thu, Oct 22

7:00 am - 6:25 am

SMF

LHR

15h 25m

1 stop

6:20 am - 4:22 pm

LHR

SMF

17h 02m

2 stops

$870Multiple Airlines

Mon, Oct 19 - Fri, Oct 30

11:07 am - 9:00 am

SMF

LHR

13h 53m

1 stop

8:25 am - 11:20 pm

LHR

SMF

21h 55m

2 stops

$878British Airways

Wed, Oct 21 - Wed, Oct 28

4:12 pm - 9:40 am

SMF

LHR

34h 28m

1 stop

11:10 am - 10:19 pm

LHR

SMF

19h 09m

2 stops

$879United Airlines

Sat, Oct 31 - Thu, Nov 5

6:15 am - 9:00 am

SMF

LGW

18h 45m

2 stops

10:00 am - 9:52 pm

LGW

SMF

19h 52m

2 stops

$884Delta

Tue, Nov 24 - Fri, Nov 27

6:15 am - 9:00 am

SMF

LGW

18h 45m

2 stops

10:00 am - 9:52 pm

LGW

SMF

19h 52m

2 stops

$885Delta

Tue, Nov 17 - Fri, Nov 27

6:05 am - 2:15 pm

SMF

LCY

24h 10m

2 stops

7:50 am - 10:51 pm

LCY

SMF

23h 01m

2 stops

$905British Airways

Mon, Jan 11 - Wed, Jan 20

11:59 pm - 6:55 am

SMF

LGW

22h 56m

2 stops

11:15 am - 12:34 am

LGW

SMF

21h 19m

2 stops

$919American Airlines

Thu, Oct 22 - Tue, Nov 3

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JetBlue flights from Sacramento to London

Our best JetBlue deals on Sacramento to London flight tickets

JetBlue

Aug 20

SMF11:35 pmSacramento Intl

13h 10m

1 stop

LHR8:45 pmLondon Heathrow

Sep 2

LHR11:55 amLondon Heathrow

18h 04m

1 stop

SMF9:59 pmSacramento Intl

$912

JetBlue

Sep 8

SMF11:10 pmSacramento Intl

13h 35m

1 stop

LHR8:45 pmLondon Heathrow

Sep 16

LHR11:55 amLondon Heathrow

17h 59m

1 stop

SMF9:54 pmSacramento Intl

$920

JetBlue

Jul 29

SMF10:56 pmSacramento Intl

13h 49m

1 stop

LHR8:45 pmLondon Heathrow

Aug 19

LHR8:15 amLondon Heathrow

21h 44m

1 stop

SMF9:59 pmSacramento Intl

$1,021

United Airlines flights from Sacramento to London

Our best United Airlines deals on Sacramento to London flight tickets

United Airlines

Oct 31

SMF4:12 pmSacramento Intl

34h 28m

1 stop

LHR9:40 amLondon Heathrow

Nov 5

LHR11:10 amLondon Heathrow

19h 09m

2 stops

SMF10:19 pmSacramento Intl

$879

United Airlines

Nov 17

SMF4:12 pmSacramento Intl

33h 28m

1 stop

LHR9:40 amLondon Heathrow

Nov 27

LHR2:30 pmLondon Heathrow

32h 51m

1 stop

SMF3:21 pmSacramento Intl

$880

United Airlines

Jan 9

SMF8:29 pmSacramento Intl

26h 56m

1 stop

LHR7:25 amLondon Heathrow

Jan 22

LHR2:30 pmLondon Heathrow

32h 51m

1 stop

SMF3:21 pmSacramento Intl

$889

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Tue 10/20

6:00 pm-10:00 am

2 stops32h 00m

London Heathrow

Thu 10/29

6:35 am-3:21 pm

2 stops39h 46m

$861

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Tue 10/20

7:00 am-6:25 am

1 stop15h 25m

London Heathrow

Thu 10/29

8:25 pm-7:37 pm

2 stops30h 12m

$863

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 10/14

11:07 am-9:00 am

1 stop13h 53m

London Heathrow

Thu 10/22

9:15 am-11:59 pm

2 stops22h 44m

$869

Quickest round-trip

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Mon 10/19

7:00 am-6:25 am

1 stop15h 25m

London Heathrow

Fri 10/30

6:20 am-4:22 pm

2 stops17h 02m

$870

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 10/21

11:07 am-9:00 am

1 stop13h 53m

London Heathrow

Wed 10/28

8:25 am-11:20 pm

2 stops21h 55m

$878

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Sat 10/31

4:12 pm-9:40 am

1 stop34h 28m

London Heathrow

Thu 11/5

11:10 am-10:19 pm

2 stops19h 09m

$879

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Tue 11/24

6:15 am-9:00 am

2 stops18h 45m

London Gatwick

Fri 11/27

10:00 am-9:52 pm

2 stops19h 52m

$884

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Tue 11/17

6:15 am-9:00 am

2 stops18h 45m

London Gatwick

Fri 11/27

10:00 am-9:52 pm

2 stops19h 52m

$885

SacramentoLondon

SMF - LCY

SMFLCY

Sacramento Intl

Mon 1/11

6:05 am-2:15 pm

2 stops24h 10m

London City

Wed 1/20

7:50 am-10:51 pm

2 stops23h 01m

$905

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Thu 10/22

11:59 pm-6:55 am

2 stops22h 56m

London Gatwick

Tue 11/3

11:15 am-12:34 am

2 stops21h 19m

$919

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Sacramento to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Sacramento and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Sacramento is in March. Flight prices, which tend to average around $660, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Sacramento averaging around $776.

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from Sacramento to London is on a Tuesday. Travelers who choose to depart for London on a Tuesday will often find tickets for as low as $888. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,030. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from Sacramento in the morning is the least expensive time of day to depart. momondo users have found prices as low as $898 when looking at flights departing in the morning. Flights to London are more costly at noon, with an average ticket price of $969. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to London from Sacramento when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $926 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Sacramento for as low as $735 on momondo.

Can stopping save me money on Sacramento to London flights?

You could potentially save up to 7% on your flight if you consider stops on a Sacramento to London flight.

How have Sacramento to London flight prices changed over time?

When to book flights from Sacramento to London

Are you open to changing your travel dates? Check out the ideal times to fly from Sacramento to London according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Sacramento to London (SMF to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sacramento to London

Fastest flight time	12h 43m
Direct flights	None

The fastest flight from Sacramento to London takes 12h 43m

There are no direct flights from Sacramento to London. There are no popular flight routes from Sacramento to London.

Search flight deals

Frequently asked questions about flying from Sacramento to London

How far is Sacramento Intl to London by plane?
The distance between Sacramento Intl and London is about 5276.7 mi. In terms of flight time, this usually takes a little over 12h 43m.
When did momondo last update prices for flights from Sacramento Intl Airport to London?
Prices for flights from Sacramento Intl Airport to London refresh daily.
How many operators does momondo search for flights from Sacramento Intl Airport to London?
As of July 2026, there are 6 operators available to choose from for flights from Sacramento Intl Airport to London.
How old do you have to be to fly from Sacramento Intl Airport to London?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sacramento Intl Airport to London.
What documentation or ID do you need to fly to London?
The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Sacramento to London?
momondo data reveals that the most frequently booked airline on the route from Sacramento to London is United Airlines, representing 39% of all bookings. The subsequent popular airlines are Virgin Atlantic at 19%, Delta at 16%, and British Airways at 9%.

Best airlines flying from Sacramento to London

Compare and see reviews for airlines that fly from Sacramento to London with momondo

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom $590	Free Cancellation	Rating 7.5 693 reviews	Search Virgin Atlantic flights
United Airlines	PriceFrom $622	Free Cancellation	Rating 7.4 10,008 reviews	Search United Airlines flights
Lufthansa	PriceFrom $624	Free Cancellation	Rating 6.8 8,148 reviews	Search Lufthansa flights
Delta	PriceFrom $624	Free Cancellation	Rating 7.8 8,479 reviews	Search Delta flights
British Airways	PriceFrom $625	Free Cancellation	Rating 6.7 8,126 reviews	Search British Airways flights
American Airlines	PriceFrom $675	Free Cancellation	Rating 7.1 11,822 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $933	Free Cancellation	Rating 7.9 12,673 reviews	Search Alaska Airlines flights

Hounslow

Gatwick

Milton Keynes

Luton

Hayes

Dover

Crawley

Wembley

Croydon

Stansted

Slough

Harrow

Kingston upon Thames

Watford

Brentwood

Ilford

Cobham

Folkestone

Guildford

Romford

Why use momondo?

Why should I use momondo to find a flight deal from Sacramento to London?

It is quick and easy to find Sacramento to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Sacramento to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Sacramento which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Sacramento to London?

Once you have performed a search for Sacramento to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Sacramento to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Sacramento to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Fly into one of these airports located in London

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London Heathrow Airport

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Cheap flights from Sacramento to London from $246

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sacramento to London departing on 10/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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JetBlue flights from Sacramento to London

Our best JetBlue deals on Sacramento to London flight tickets

United Airlines flights from Sacramento to London

Our best United Airlines deals on Sacramento to London flight tickets

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How to get the cheapest flight ticket from Sacramento to London

What is the typical price of a round-trip flight between Sacramento and London?

What is the cheapest month to fly to London?

What is the cheapest day to depart on your flight to London?

What is the cheapest time of day to depart on your flight to London?

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

Can stopping save me money on Sacramento to London flights?

How have Sacramento to London flight prices changed over time?

What is the cheapest airline that flies from Sacramento Intl to London?

What airlines fly to London?

Which airport is the most popular layover for flights between Sacramento and London?

Which layover airport offers the lowest fares from Sacramento to London?

Which layover airport has the shortest travel time from Sacramento to London?

Which layover airport has the shortest connection time from Sacramento to London?

When to book flights from Sacramento to London

Cheap Sacramento to London (SMF to LON) flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Sacramento to London

Best airlines flying from Sacramento to London

Compare and see reviews for airlines that fly from Sacramento to London with momondo

Traveling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Fly your favorite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

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