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.

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 connection time from Sacramento to London?

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

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

New York (JFK) was the most common stop: 23% 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, Delta, and JetBlue are the most popular carriers operating from Sacramento Intl to London

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.

$292 Cheap Flights from Sacramento to London in 2026

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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.

6:44 am - 9:00 am

SMF

LHR

18h 16m

1 stop

11:00 am - 11:34 pm

LHR

SMF

20h 34m

1 stop

$958British Airways

Mon, Sep 7 - Fri, Sep 18

6:00 am - 2:10 pm

SMF

LHR

24h 10m

1 stop

3:05 pm - 5:21 pm

LHR

SMF

34h 16m

1 stop

$959United Airlines

Fri, Sep 25 - Fri, Oct 2

2:00 pm - 7:25 am

SMF

LHR

33h 25m

1 stop

3:05 pm - 5:21 pm

LHR

SMF

34h 16m

1 stop

$960United Airlines

Mon, Sep 28 - Mon, Oct 12

9:20 am - 12:35 pm

SMF

LCY

19h 15m

2 stops

7:15 pm - 6:18 pm

LCY

SMF

31h 03m

2 stops

$961SWISS

Mon, Aug 17 - Mon, Aug 31

6:00 pm - 6:30 am

SMF

LHR

28h 30m

2 stops

7:30 pm - 8:26 pm

LHR

SMF

32h 56m

2 stops

$961Multiple Airlines

Mon, Aug 17 - Mon, Aug 31

10:50 am - 9:40 am

SMF

LHR

14h 50m

1 stop

1:05 pm - 8:14 pm

LHR

SMF

15h 09m

1 stop

$962United Airlines

Wed, Aug 5 - Wed, Aug 19

9:20 am - 12:35 pm

SMF

LCY

19h 15m

2 stops

9:15 am - 10:48 pm

LCY

SMF

21h 33m

2 stops

$963SWISS

Wed, Aug 19 - Tue, Aug 25

7:46 am - 9:25 am

SMF

LGW

17h 39m

2 stops

10:25 am - 10:32 pm

LGW

SMF

20h 07m

2 stops

$965Delta

Thu, Oct 1 - Thu, Oct 8

1:30 pm - 1:05 pm

SMF

LHR

15h 35m

2 stops

6:30 am - 6:59 pm

LHR

SMF

20h 29m

2 stops

$966Delta

Wed, Aug 5 - Wed, Aug 12

11:53 am - 5:40 pm

SMF

LCY

21h 47m

2 stops

9:50 am - 9:10 pm

LCY

SMF

19h 20m

2 stops

$979Lufthansa

Tue, Nov 17 - Fri, Nov 27

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United Airlines flights from Sacramento to London

Our best United Airlines deals on Sacramento to London flight tickets

United Airlines

Sep 25

SMF6:00 amSacramento Intl

24h 10m

1 stop

LHR2:10 pmLondon Heathrow

Oct 2

LHR3:05 pmLondon Heathrow

34h 16m

1 stop

SMF5:21 pmSacramento Intl

$959

United Airlines

Sep 28

SMF2:00 pmSacramento Intl

33h 25m

1 stop

LHR7:25 amLondon Heathrow

Oct 12

LHR3:05 pmLondon Heathrow

34h 16m

1 stop

SMF5:21 pmSacramento Intl

$960

United Airlines

Aug 5

SMF10:50 amSacramento Intl

14h 50m

1 stop

LHR9:40 amLondon Heathrow

Aug 19

LHR1:05 pmLondon Heathrow

15h 09m

1 stop

SMF8:14 pmSacramento Intl

$962

Alaska Airlines flights from Sacramento to London

Our best Alaska Airlines deals on Sacramento to London flight tickets

Alaska Airlines

Aug 15

SMF8:34 pmSacramento Intl

34h 31m

1 stop

LHR3:05 pmLondon Heathrow

Aug 21

LHR5:00 pmLondon Heathrow

14h 13m

1 stop

SMF11:13 pmSacramento Intl

$968

Alaska Airlines

Oct 9

SMF11:09 amSacramento Intl

19h 56m

1 stop

LHR3:05 pmLondon Heathrow

Oct 18

LHR5:00 pmLondon Heathrow

14h 50m

1 stop

SMF11:50 pmSacramento Intl

$983

Alaska Airlines

Oct 8

SMF2:22 pmSacramento Intl

16h 43m

1 stop

LHR3:05 pmLondon Heathrow

Oct 18

LHR5:00 pmLondon Heathrow

14h 50m

1 stop

SMF11:50 pmSacramento Intl

$984

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Mon 9/7

6:44 am-9:00 am

1 stop18h 16m

London Heathrow

Fri 9/18

11:00 am-11:34 pm

1 stop20h 34m

$958

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Fri 9/25

6:00 am-2:10 pm

1 stop24h 10m

London Heathrow

Fri 10/2

3:05 pm-5:21 pm

1 stop34h 16m

$959

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Mon 9/28

2:00 pm-7:25 am

1 stop33h 25m

London Heathrow

Mon 10/12

3:05 pm-5:21 pm

1 stop34h 16m

$960

SacramentoLondon

SMF - LCY

SMFLCY

Sacramento Intl

Mon 8/17

9:20 am-12:35 pm

2 stops19h 15m

London City

Mon 8/31

7:15 pm-6:18 pm

2 stops31h 03m

$961

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Mon 8/17

6:00 pm-6:30 am

2 stops28h 30m

London Heathrow

Mon 8/31

7:30 pm-8:26 pm

2 stops32h 56m

$961

Quickest round-trip

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 8/5

10:50 am-9:40 am

1 stop14h 50m

London Heathrow

Wed 8/19

1:05 pm-8:14 pm

1 stop15h 09m

$962

SacramentoLondon

SMF - LCY

SMFLCY

Sacramento Intl

Wed 8/19

9:20 am-12:35 pm

2 stops19h 15m

London City

Tue 8/25

9:15 am-10:48 pm

2 stops21h 33m

$963

SacramentoLondon

SMF - LGW

SMFLGW

Sacramento Intl

Thu 10/1

7:46 am-9:25 am

2 stops17h 39m

London Gatwick

Thu 10/8

10:25 am-10:32 pm

2 stops20h 07m

$965

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 8/5

1:30 pm-1:05 pm

2 stops15h 35m

London Heathrow

Wed 8/12

6:30 am-6:59 pm

2 stops20h 29m

$966

SacramentoLondon

SMF - LCY

SMFLCY

Sacramento Intl

Tue 11/17

11:53 am-5:40 pm

2 stops21h 47m

London City

Fri 11/27

9:50 am-9:10 pm

2 stops19h 20m

$979

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 July. Flight prices, which tend to average around $201, are often lower during this time because this is during the off-season. The month of May is another great option to travel to London, with average flight prices from Sacramento averaging around $210.

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 $879. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,028. 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 $897 when looking at flights departing in the morning. Flights to London are more costly in the evening, with an average ticket price of $951. Departure times in the evening 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 $918 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 19m
Direct flights	None

The fastest flight from Sacramento to London takes 12h 19m

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

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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 19m.
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 40% of all bookings. The subsequent popular airlines are Virgin Atlantic at 20%, Delta at 15%, 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 7.5 691 reviews	Search Virgin Atlantic flights
United Airlines	PriceFrom $622	Free Cancellation	Rating 7.4 9,940 reviews	Search United Airlines flights
Lufthansa	PriceFrom $624	Free Cancellation	Rating 6.8 8,117 reviews	Search Lufthansa flights
Delta	PriceFrom $624	Free Cancellation	Rating 7.8 8,452 reviews	Search Delta flights
British Airways	PriceFrom $625	Free Cancellation	Rating 6.7 8,095 reviews	Search British Airways flights
American Airlines	PriceFrom $675	Free Cancellation	Rating 7.1 11,782 reviews	Search American Airlines flights

Hounslow

Gatwick

Milton Keynes

Luton

Hayes

Dover

Crawley

Croydon

Wembley

Stansted

Harrow

Slough

Watford

Ilford

Cobham

Brentwood

Folkestone

Guildford

Romford

Uxbridge

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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Cheap flights from Sacramento to London from $292

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 8/1. 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

Our best United Airlines deals on Sacramento to London flight tickets

Alaska Airlines flights from Sacramento to London

Our best Alaska Airlines deals on Sacramento to London flight tickets

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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 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

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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