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$743+ Cheap flights from Sacramento (SMF) to London, ON (YXU)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — YXU
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
1 adult, Economy
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Find flight deals from Sacramento to London

Best flights from Sacramento to London
Discover carefully curated flight deals from Sacramento to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 19, 2025.

This United Airlines deal was found by Cheapflights users on 11/18. 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 1/134:35 pmSMF - YXU
2 stops25h 46mUnited Airlines
Sat 1/175:10 amYXU - SMF
2 stops31h 38mUnited Airlines
Deal found 11/18$743
This United Airlines deal was found by Cheapflights users on 11/16. 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 5/410:25 amSMF - YXU
2 stops19h 52mUnited Airlines
Wed 5/63:35 pmYXU - SMF
2 stops21h 12mUnited Airlines
Deal found 11/16$845

Cheap flight deals from Sacramento to London

Discover tips and strategies to find the most affordable flight options for your journey from Sacramento (SMF) to London (YXU). 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 November 19, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$743
(United Airlines)

Popular in

December

Cheapest in

March
Provider with most accurate pricing for Sacramento Intl-London flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sacramento Intl-London flights.
Search Deals
From Sacramento Intl to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($91 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($40 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sacramento to London 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 November 19, 2025.
Use the filters below to find and compare flights from Sacramento to London that are best for you.

Fly from

Sacramento

Fly to

London

Route

Depart

Return

Price

SacramentoLondon

SMF - YXU

SMFYXU

Sacramento Intl

Tue 1/13

4:35 pm-9:21 pm

2 stops25h 46m

London

Sat 1/17

5:10 am-9:48 am

2 stops31h 38m

$743

SacramentoLondon

SMF - YXU

SMFYXU

Sacramento Intl

Mon 5/4

10:25 am-9:17 am

2 stops19h 52m

London

Wed 5/6

3:35 pm-9:47 am

2 stops21h 12m

$845

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Compare providers for flights from Sacramento to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sacramento to London in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sacramento-London, Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sacramento-London, Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Sacramento-London, Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sacramento-London, Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sacramento-London, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sacramento to London

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

What is the cheapest month to book a flight from Sacramento to London, Ontario?

Currently, February is the cheapest month in which you can book a flight from Sacramento to London, Ontario (average of $127). Flying from Sacramento to London, Ontario in December is currently the most expensive (average of $208). 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.

Related info for your journey

Find useful and relevant information for your journey from Sacramento to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Sacramento to London, Ontario?

    A quick flight from Sacramento to London, Ontario can take about 25h 46m. United Airlines provides one of the quickest options available for as low as $743. The distance between Sacramento and London, Ontario is about 2112 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sacramento to London 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, Ontario?

    Currently, February is the cheapest month in which you can book a flight from Sacramento to London, Ontario (average of $127). Flying from Sacramento to London, Ontario in December is currently the most expensive (average of $208). 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?

Book flights to London if you plan to visit one of these locations
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