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

Flights via Boston (BOS) offer the lowest average round-trip price of $390.

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.

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

United Airlines, SWISS, and Lufthansa are the most popular carriers operating from Sacramento Intl to London

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 44% of people opting to fly with this airline when traveling to London. Keep in mind that there are 20 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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

New York (JFK) was the most common stop: 27% of momondo users choosing 1-stop flights on this route connected there.

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.

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 April 2026, there are 8 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.

$329 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 low for flights on this route. Typical prices usually range from $1,053 to $744. The lowest price recently found on this route was $805.

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Find the cheapest flights from Sacramento to London

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:15 pm - 5:40 pm

SMF

LHR

19h 25m

2 stops

6:40 am - 10:16 pm

LHR

SMF

23h 36m

2 stops

$805Scandinavian Airlines

Mon, Sep 28 - Mon, Oct 12

1:00 pm - 5:40 pm

SMF

LHR

20h 40m

2 stops

7:25 am - 10:55 pm

LHR

SMF

23h 30m

2 stops

$816Lufthansa

Fri, Aug 21 - Sun, Aug 23

2:12 pm - 4:40 pm

SMF

LHR

18h 28m

2 stops

7:25 am - 10:55 pm

LHR

SMF

23h 30m

2 stops

$817Lufthansa

Fri, Aug 21 - Sun, Aug 23

2:15 pm - 9:40 pm

SMF

LHR

23h 25m

2 stops

6:40 am - 10:16 pm

LHR

SMF

23h 36m

2 stops

$822Scandinavian Airlines

Mon, Sep 28 - Mon, Oct 12

6:00 am - 8:40 am

SMF

LGW

18h 40m

2 stops

2:30 pm - 1:45 pm

LGW

SMF

31h 15m

2 stops

$928American Airlines

Tue, Apr 28 - Tue, May 5

8:00 am - 2:40 pm

SMF

LGW

22h 40m

2 stops

1:00 pm - 10:08 pm

LGW

SMF

17h 08m

2 stops

$990Icelandair

Tue, May 5 - Tue, May 12

8:16 pm - 8:15 pm

SMF

LGW

39h 59m

2 stops

10:10 am - 7:31 pm

LGW

SMF

17h 21m

1 stop

$993Multiple Airlines

Wed, May 6 - Sat, Jun 6

12:11 pm - 2:40 pm

SMF

LGW

18h 29m

2 stops

3:40 pm - 10:25 pm

LGW

SMF

38h 45m

2 stops

$999Multiple Airlines

Tue, Apr 14 - Tue, Apr 21

2:58 pm - 2:40 pm

SMF

LGW

15h 42m

2 stops

3:40 pm - 4:13 pm

LGW

SMF

32h 33m

2 stops

$1,024Icelandair

Wed, Aug 26 - Mon, Aug 31

8:17 am - 9:10 pm

SMF

LCY

28h 53m

2 stops

7:15 pm - 9:14 pm

LCY

SMF

33h 59m

2 stops

$1,073British Airways

Thu, Apr 30 - Thu, May 7

United Airlines flights from Sacramento to London

Our best United Airlines deals on Sacramento to London flight tickets

United Airlines

Aug 16

SMF10:44 pmSacramento Intl

14h 51m

1 stop

LHR9:35 pmLondon Heathrow

Aug 27

LHR6:50 amLondon Heathrow

21h 49m

2 stops

SMF8:39 pmSacramento Intl

$872

United Airlines

Aug 18

SMF6:50 pmSacramento Intl

32h 20m

1 stop

LHR11:10 amLondon Heathrow

Aug 25

LHR3:05 pmLondon Heathrow

34h 18m

1 stop

SMF5:23 pmSacramento Intl

$878

United Airlines

Aug 10

SMF8:29 pmSacramento Intl

26h 56m

1 stop

LHR7:25 amLondon Heathrow

Aug 26

LHR3:05 pmLondon Heathrow

34h 18m

1 stop

SMF5:23 pmSacramento Intl

$879

Air Canada flights from Sacramento to London

Our best Air Canada deals on Sacramento to London flight tickets

Air Canada

Aug 18

SMF6:00 pmSacramento Intl

33h 50m

2 stops

LHR11:50 amLondon Heathrow

Aug 27

LHR9:30 amLondon Heathrow

34h 15m

2 stops

SMF11:45 amSacramento Intl

$873

Air Canada

Sep 5

SMF6:00 pmSacramento Intl

33h 50m

2 stops

LHR11:50 amLondon Heathrow

Sep 11

LHR2:10 pmLondon Heathrow

29h 35m

2 stops

SMF11:45 amSacramento Intl

$881

Air Canada

Aug 17

SMF6:00 pmSacramento Intl

33h 50m

2 stops

LHR11:50 amLondon Heathrow

Aug 21

LHR2:05 pmLondon Heathrow

35h 18m

2 stops

SMF5:23 pmSacramento Intl

$889

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Mon 9/28

2:15 pm-5:40 pm

2 stops19h 25m

London Heathrow

Mon 10/12

6:40 am-10:16 pm

2 stops23h 36m

$805

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Fri 8/21

1:00 pm-5:40 pm

2 stops20h 40m

London Heathrow

Sun 8/23

7:25 am-10:55 pm

2 stops23h 30m

$816

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Fri 8/21

2:12 pm-4:40 pm

2 stops18h 28m

London Heathrow

Sun 8/23

7:25 am-10:55 pm

2 stops23h 30m

$817

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Mon 9/28

2:15 pm-9:40 pm

2 stops23h 25m

London Heathrow

Mon 10/12

6:40 am-10:16 pm

2 stops23h 36m

$822

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Tue 4/28

6:00 am-8:40 am

2 stops18h 40m

London Gatwick

Tue 5/5

2:30 pm-1:45 pm

2 stops31h 15m

$928

Quickest round-trip

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Tue 5/5

8:00 am-2:40 pm

2 stops22h 40m

London Gatwick

Tue 5/12

1:00 pm-10:08 pm

2 stops17h 08m

$990

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Wed 5/6

8:16 pm-8:15 pm

2 stops39h 59m

London Gatwick

Sat 6/6

10:10 am-7:31 pm

1 stop17h 21m

$993

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Tue 4/14

12:11 pm-2:40 pm

2 stops18h 29m

London Gatwick

Tue 4/21

3:40 pm-10:25 pm

2 stops38h 45m

$999

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Wed 8/26

2:58 pm-2:40 pm

2 stops15h 42m

London Gatwick

Mon 8/31

3:40 pm-4:13 pm

2 stops32h 33m

$1,024

SacramentoLondon

SMF - LCY

SMFLCY

Sacramento Intl

Thu 4/30

8:17 am-9:10 pm

2 stops28h 53m

London City

Thu 5/7

7:15 pm-9:14 pm

2 stops33h 59m

$1,073

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 $649, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Sacramento averaging around $751.

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

The cheapest day to depart from Sacramento to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $809. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $941. 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 afternoon is the least expensive time of day to depart. momondo users have found prices as low as $856 when looking at flights departing in the afternoon. Flights to London are more costly at noon, with an average ticket price of $941. 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 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 $892 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 $796 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 25m
Direct flights	None

The fastest flight from Sacramento to London takes 12h 25m

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 25m.
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 April 2026, there are 8 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 37% of all bookings. The subsequent popular airlines are Virgin Atlantic at 17%, JetBlue at 13%, and Delta at 13%.

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 $599	Free Cancellation	Rating 7.5 685 reviews	Search Virgin Atlantic flights
Air Canada	PriceFrom $615	Free Cancellation	Rating 7.1 10,894 reviews	Search Air Canada flights
Lufthansa	PriceFrom $624	Free Cancellation	Rating 6.8 7,892 reviews	Search Lufthansa flights
United Airlines	PriceFrom $624	Free Cancellation	Rating 7.4 9,547 reviews	Search United Airlines flights
British Airways	PriceFrom $625	Free Cancellation	Rating 6.7 7,853 reviews	Search British Airways flights
Delta	PriceFrom $625	Free Cancellation	Rating 7.9 8,387 reviews	Search Delta flights
American Airlines	PriceFrom $678	Free Cancellation	Rating 7.1 11,557 reviews	Search American Airlines flights
JetBlue	PriceFrom $743	Free Cancellation	Rating 7.2 2,913 reviews	Search JetBlue flights

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Slough

Crawley

Hayes

Wembley

Stansted

Croydon

Dartford

Brentwood

Guildford

Cobham

Folkestone

Romford

Harrow

Watford

Richmond

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

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London Stansted Airport

Cheap flights from Sacramento to London from $329

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 9/28. 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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United Airlines flights from Sacramento to London

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See travel insights to London from

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 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

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

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.

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

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