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Heathrow

$313+ 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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — LHR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Sacramento Intl to London Heathrow are usually found in October or April, 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 June 12, 2025.

Round-trip from

$871
(Air Canada)

One-way from

$313
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$1,409
From Sacramento Intl to London Heathrow
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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 ($231 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Air Canada deal was found by Cheapflights users on 6/10. 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.
Sun 8/39:00 amSMF - LHR
2 stops17h 00mAir Canada
Sat 8/163:50 pmLHR - SMF
2 stops31h 29mAir Canada
Deal found 6/10$871
This British Airways deal was found by Cheapflights users on 6/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/256:34 pmSMF - LHR
1 stop13h 31mBritish Airways
Fri 8/12:45 pmLHR - SMF
1 stop15h 43mBritish Airways
Deal found 6/10$881
This Iberia deal was found by Cheapflights users on 6/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/206:00 amSMF - LHR
1 stop16h 25mIberia
Sat 8/23:10 pmLHR - SMF
1 stop15h 32mIberia
Deal found 6/10$882
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2111:10 amSMF - LHR
2 stops18h 00mDelta
Fri 8/812:25 pmLHR - SMF
2 stops18h 55mDelta
Deal found 6/10$885
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 7/2510:59 amSMF - LHR
2 stops16h 36mUnited Airlines
Fri 8/18:30 amLHR - SMF
2 stops17h 02mUnited Airlines
Deal found 6/11$886
This Scandinavian Airlines deal was found by Cheapflights users on 6/10. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/212:55 pmSMF - LHR
3 stops21h 35mScandinavian Airlines
Tue 9/3010:20 amLHR - SMF
2 stops19h 54mScandinavian Airlines
Deal found 6/10$900
This KLM deal was found by Cheapflights users on 6/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/812:20 pmSMF - LHR
1 stop13h 30mKLM
Thu 7/3110:55 amLHR - SMF
1 stop15h 09mKLM
Deal found 6/12$910
This SWISS deal was found by Cheapflights users on 6/10. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2312:58 pmSMF - LHR
2 stops38h 27mSWISS
Wed 8/66:00 amLHR - SMF
2 stops23h 06mSWISS
Deal found 6/10$912
This CheapOair deal was found by Cheapflights users on 6/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/288:30 amSMF - LHR
1 stop14h 05mMultiple Airlines
Mon 9/159:30 amLHR - SMF
2 stops18h 59mMultiple Airlines
Deal found 6/11$918
This JetBlue deal was found by Cheapflights users on 6/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/411:37 pmSMF - LHR
1 stop13h 08mJetBlue
Fri 7/188:25 amLHR - SMF
1 stop19h 44mJetBlue
Deal found 6/10$922
This Lufthansa deal was found by Cheapflights users on 6/12. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/232:31 pmSMF - LHR
1 stop32h 54mLufthansa
Thu 9/189:30 amLHR - SMF
2 stops20h 19mLufthansa
Deal found 6/12$938
This Finnair deal was found by Cheapflights users on 6/11. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1110:36 amSMF - LHR
1 stop19h 49mFinnair
Wed 9/241:00 pmLHR - SMF
2 stops41h 52mFinnair
Deal found 6/11$1,000

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 June 12, 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

Sun 8/3

9:00 am-10:00 am

2 stops17h 00m

London Heathrow

Sat 8/16

3:50 pm-3:19 pm

2 stops31h 29m

$871

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Fri 7/25

6:34 pm-4:05 pm

1 stop13h 31m

London Heathrow

Fri 8/1

2:45 pm-10:28 pm

1 stop15h 43m

$881

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Sun 7/20

6:00 am-6:25 am

1 stop16h 25m

London Heathrow

Sat 8/2

3:10 pm-10:42 pm

1 stop15h 32m

$882

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Mon 7/21

11:10 am-1:10 pm

2 stops18h 00m

London Heathrow

Fri 8/8

12:25 pm-11:20 pm

2 stops18h 55m

$885

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Fri 7/25

10:59 am-11:35 am

2 stops16h 36m

London Heathrow

Fri 8/1

8:30 am-5:32 pm

2 stops17h 02m

$886

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Tue 9/2

12:55 pm-6:30 pm

3 stops21h 35m

London Heathrow

Tue 9/30

10:20 am-10:14 pm

2 stops19h 54m

$900

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Tue 7/8

12:20 pm-9:50 am

1 stop13h 30m

London Heathrow

Thu 7/31

10:55 am-6:04 pm

1 stop15h 09m

$910

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Wed 7/23

12:58 pm-11:25 am

2 stops38h 27m

London Heathrow

Wed 8/6

6:00 am-9:06 pm

2 stops23h 06m

$912

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Thu 8/28

8:30 am-6:35 am

1 stop14h 05m

London Heathrow

Mon 9/15

9:30 am-8:29 pm

2 stops18h 59m

$918

SacramentoLondon

SMF - LHR

SMFLHR

Sacramento Intl

Fri 7/4

11:37 pm-8:45 pm

1 stop13h 08m

London Heathrow

Fri 7/18

8:25 am-8:09 pm

1 stop19h 44m

$922

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 29 results
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2
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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 June 9, 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 $1,108). 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 June 12, 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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Sacramento to London by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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.
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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.
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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.
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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.
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

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. 11 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 $871, 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 Iberia - these airlines can fly you to your destination from $881 and $882, respectively. Air Canada is 11% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Sacramento to London Heathrow Airport one-way?

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $369. Icelandair flights start at $413 while deals on Air Canada start at $458 one-way.

  • 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 $1,108). 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 Sacramento?

Book flights to Sacramento if you plan to visit one of these locations
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Top 10 airlines flying from Sacramento to Heathrow

Discover the top 10 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$578Average$943FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$643Average$965FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$647Average$887FlexibilityNo cancel feeOn-time70%
IberiaCheapest$677Average$1,087FlexibilityNo cancel feeOn-time77%
DeltaCheapest$683Average$931FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$683Average$770FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$702Average$1,013FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$703Average$971FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$703Average$963FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$738Average$947FlexibilityNo cancel feeOn-time62%

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