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Heathrow

$279+ Cheap flights from Sacramento (SMF) to Heathrow (LHR)

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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — LHR
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Sacramento Intl to London Heathrow are usually found in April or October, booked 68 days in advance, depart on a Monday or Friday and return on a Friday

Cheap flight deals from Sacramento to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Sacramento (SMF) to Heathrow (LHR). 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

$588
(lol.travel)

One-way from

$279
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$876
From Sacramento Intl to London Heathrow
Search Deals
One-way flight from Sacramento Intl to London Heathrow
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Highest demand for flights based on searches. 18% potential increase in price ($230 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Sacramento to Heathrow

Cheapest flights from Sacramento to Heathrow
Explore the most affordable flight options available from Sacramento to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

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 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 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
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.
Sat 9/62:30 pmSMF - LHR
1 stop32h 55mUnited Airlines
Thu 9/189:30 amLHR - SMF
2 stops44h 25mUnited Airlines
Deal found 8/14$612
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.
Tue 8/264:13 pmSMF - LHR
1 stop12h 07mUnited Airlines
Tue 9/93:50 pmLHR - SMF
2 stops27h 57mUnited Airlines
Deal found 8/12$613
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.
Tue 10/74:05 pmSMF - LHR
2 stops30h 25mAir Canada
Thu 10/169:30 amLHR - SMF
2 stops37h 44mAir Canada
Deal found 8/12$614

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sacramento to Heathrow 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 Heathrow Airport that are best for you.

Fly from

Sacramento

Fly to

Heathrow

Route

Depart

Return

Price

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 - 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 - LHR

SMFLHR

Sacramento Intl

Mon 10/20

4:05 pm-1:20 pm

1 stop13h 15m

London Heathrow

Tue 10/28

9:00 am-9:41 pm

2 stops19h 41m

$607

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 11/5

5:00 am-9:40 am

1 stop20h 40m

London Heathrow

Wed 11/12

1:25 pm-10:25 pm

2 stops41h 00m

$607

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 9/10

4:13 pm-12:20 pm

1 stop12h 07m

London Heathrow

Wed 9/17

2:05 pm-9:55 pm

2 stops39h 50m

$607

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 19 results
1
2

Best time to book a flight from Sacramento to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 Heathrow Airport

How far ahead should I book a flight from Sacramento to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Sacramento to Heathrow. Price data was last updated on August 8, 2025.

Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sacramento to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Sacramento to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Sacramento to London Heathrow Airport (average of $661). Flying from Sacramento to London Heathrow Airport 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 LHR?

Find hourly flight availability from Sacramento to Heathrow. 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.

It’s typically best to fly out from Sacramento to London Heathrow Airport at noon. Doing so could potentially save you 17% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Sacramento to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Sacramento to Heathrow. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Sacramento to London Heathrow Airport flight should consider departing on Monday at noon when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Sacramento to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated August 14, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and Virgin Atlantic from Sacramento to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

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

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

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.
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

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.
Virgin Atlantic
7.4
Good
657 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

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.
British Airways
6.7
Okay
7,266 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

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 Heathrow. 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 Heathrow?

    For a flight from Sacramento to London Heathrow, you will be flying from Sacramento Intl. Sacramento Intl (SMF) is just 9.4 mi from the center of the city. Sacramento Intl is the only Sacramento airport and it handles 0 outbound flights to London Heathrow per day. 9 airlines have flights to London Heathrow from Sacramento Intl on a regular basis.

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

    Currently priced at $615, Air Canada will fly you from Sacramento to London Heathrow Airport and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and Virgin Atlantic - these airlines can fly you to your destination from $642 and $674, respectively. Air Canada is 37% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Sacramento to Heathrow that include hotel bookings?

    Yes. In addition to deals on Sacramento to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sacramento to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sacramento to Heathrow.

  • Can I find deals for business class flights from Sacramento to Heathrow?

    Yes. Cheapflights offers flight deals from Sacramento to Heathrow 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 Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Sacramento to London Heathrow Airport (average of $661). Flying from Sacramento to London Heathrow Airport 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Swindon

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sacramento to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Sacramento to Heathrow

Discover the top 9 airlines that operate flights from Sacramento to Heathrow. 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%

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