SMF - LHR

$329 Find Cheap Flights from Sacramento to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sacramento to Heathrow departing on 8/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sacramento to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sacramento to London.
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Everything you should know

Cheapest round-trip
$899
Typical prices: $1,049-$735
Air Canada
Sat 9/12Thu 9/17
SMF - LHR • 2 stops
Cheapest one-way
$329
Typical prices: $361-$522
Air Canada
Mon 8/31
SMF - LHR • 2 stops
Top airlines
Cheapest • from $899 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Sacramento and Heathrow. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $932 (round-trip)
Shortest trip • 12h 47m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sacramento to Heathrow (SMF-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sacramento to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sacramento to Heathrow

Sat, Sep 12 - Thu, Sep 17
Air Canada Logo
11:07 pm - 6:35 am
SMF
-
LHR
23h 28m
2 stops
Air Canada Logo
2:10 pm - 3:06 pm
LHR
-
SMF
32h 56m
2 stops
$899Air Canada
Wed, Aug 5 - Wed, Aug 19
British Airways Logo
7:00 am - 10:50 am
SMF
-
LHR
19h 50m
1 stop
British Airways Logo
12:55 pm - 8:31 pm
LHR
-
SMF
15h 36m
1 stop
$900British Airways
Wed, Sep 16 - Wed, Sep 30
British Airways Logo
6:50 am - 12:45 pm
SMF
-
LHR
21h 55m
1 stop
British Airways Logo
11:00 am - 11:32 pm
LHR
-
SMF
20h 32m
1 stop
$901British Airways
Sat, Sep 5 - Fri, Sep 11
Air Canada Logo
6:00 pm - 6:30 am
SMF
-
LHR
28h 30m
2 stops
Air Canada Logo
5:40 pm - 5:21 pm
LHR
-
SMF
31h 41m
2 stops
$903Air Canada
Sat, Aug 15 - Mon, Aug 24
British Airways Logo
11:59 pm - 6:20 am
SMF
-
LHR
22h 21m
1 stop
British Airways Logo
8:00 pm - 8:31 pm
LHR
-
SMF
32h 31m
2 stops
$904British Airways
Sat, Sep 12 - Wed, Sep 16
United Airlines Logo
10:44 pm - 9:20 pm
SMF
-
LHR
14h 36m
1 stop
United Airlines Logo
1:00 pm - 7:39 pm
LHR
-
SMF
14h 39m
1 stop
$906United Airlines
Sat, Sep 5 - Fri, Sep 11
British Airways Logo
11:59 pm - 9:00 am
SMF
-
LHR
25h 01m
1 stop
British Airways Logo
2:25 pm - 11:32 pm
LHR
-
SMF
17h 07m
1 stop
$907British Airways
Wed, Sep 16 - Wed, Sep 30
Delta Logo
9:10 am - 10:20 am
SMF
-
LHR
17h 10m
2 stops
Delta Logo
10:55 am - 6:07 pm
LHR
-
SMF
15h 12m
1 stop
$911Delta
Wed, Aug 12 - Tue, Aug 18
United Airlines Logo
10:50 am - 11:55 am
SMF
-
LHR
17h 05m
2 stops
United Airlines Logo
8:45 am - 7:47 pm
LHR
-
SMF
19h 02m
2 stops
$914United Airlines
Thu, Oct 22 - Tue, Nov 3
Multiple Airlines Logo
6:00 pm - 10:00 am
SMF
-
LHR
32h 00m
2 stops
Multiple Airlines Logo
6:35 am - 3:22 pm
LHR
-
SMF
40h 47m
2 stops
$915Multiple Airlines
Booking Insights

KAYAK's insights & trends for Sacramento to Heathrow flights

Get data-powered insights and trends into flights from Sacramento to Heathrow to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Sacramento to London Heathrow Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sacramento to London Heathrow Airport departing in September.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sacramento to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sacramento to London Heathrow Airport is March, where tickets cost $666 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,374 and $1,066 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sacramento to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Sacramento to London Heathrow Airport, you should book around 4 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$329
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 53% increase in price.
Flight from Sacramento to London Heathrow Airport

When to book flights from Sacramento to Heathrow

Are your dates flexible? Find out the best times to travel from Sacramento to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Sacramento to London Heathrow Airport flights

  • Are there airports hotels at Sacramento International Airport (SMF)?

    Yes, there are hotels close to Sacramento International Airport (SMF) that provide travelers with convenient lodging choices. These hotels offer options for overnight stays or for people with early or late flights due to their proximity to the airport. They include the Westin— Sacramento and Holiday Inn Express Sacramento Airport—Natomas, both of which are situated about five miles from SMF, and the Hampton Inn & Suites Sacramento Airport—Natomas, which is located within a few miles of the airport.

  • Which airlines operate ecologically responsible flights between Sacramento (SMF) and London Heathrow Airport (LHR)?

    Significant efforts have been undertaken by Delta Air Lines to lessen their environmental impact. They have made investments in more recent, fuel-efficient aircraft, put in place sustainable fuel substitutes, and launched recycling and waste minimization initiatives. Additionally, they take part in numerous carbon offset initiatives.

  • How can I go from London Heathrow Airport (LHR) to my destination?

    There are many ways to get from LHR to your destination. At Heathrow Airport, taxis and private transportation are easily accessible. Taking the London Underground (tube) is another option for getting from Heathrow Airport to numerous areas in central London and elsewhere at a reasonable price. You might rent a car from one of the rental car companies located at the airport if having your own vehicle affords you more mobility.

  • Can I upgrade my class to higher class when flying from Sacramento (SMF) to London Heathrow Airport (LHR)?

    Passengers can request upgrades to a higher class on Delta Air Lines, Virgin Atlantic, British Airways, and United Airlines. Depending on availability, upgrades can be purchased with frequent flyer miles or by paying the difference in fare.

  • What is the cheapest flight from Sacramento to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Sacramento to London Heathrow Airport was $329 for a one-way ticket and $899 for a round-trip.

  • Do I need a passport to fly between Sacramento and London Heathrow Airport?

    Yes, you’ll need a passport to travel to London Heathrow Airport from Sacramento.

  • Which aircraft models fly most regularly from Sacramento to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sacramento to London Heathrow Airport?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Sacramento and London Heathrow Airport, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Sacramento to London, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Sacramento to London are Delta and United Airlines. With an average price for the route of $983 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $951 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Sacramento to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sacramento to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sacramento to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Sacramento is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sacramento to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Sacramento with another airline. Booking your flights between Sacramento and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sacramento to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Sacramento up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Sacramento to London Heathrow Airport

  • When traveling from Sacramento (SMF) to London Heathrow Airport (LHR), the most common layovers occur at Chicago O'Hare International Airport (ORD) in Chicago when flying with United Airlines and at Atlanta Hartsfield-Jackson International Airport (ATL) in Atlanta with Delta Air Lines. Another frequent layover option is John F. Kennedy International Airport (JFK) in New York City, often utilized by British Airways.
  • When traveling from Sacramento to London Heathrow Airport, many airlines, including British Airways, United Airlines, Delta Air Lines, and American Airlines, allow you to bring your pet. Depending on size and for an additional fee, they permit domestic pets like cats and dogs to fly either in the cabin or the cargo hold.
  • Virgin Atlantic, United Airlines, and American Airlines all offer special accommodations for travelers with disabilities, especially for those who have reduced mobility flying from Sacramento (SMF) to London Heathrow Airport (LHR). For passengers with disabilities, they provide a variety of services and assistance, such as wheelchair assistance, mobility aids, and accessible seating alternatives.
  • Airlines including Delta Air Lines, United Airlines, Virgin Atlantic, and British Airways provide special services on flights from Sacramento to London Heathrow Airport for families with children. They provide a range of amenities, including priority boarding, family check-in desks, and free activity packets for youngsters. Additionally, they serve kid-friendly meals and have a variety of age-appropriate in-flight entertainment selections.
  • On flights from Sacramento to London Heathrow Airport, British Airways has a carry-on policy that allows customers to bring one cabin bag and one personal item, such as a laptop bag or purse. The cabin bag's maximum measurements are usually 22 x 18 x 10 inches.

Reviews of the top 5 airlines serving from Sacramento to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Sacramento to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sacramento to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8452 reviews
8.1Boarding
7.2Food
8.5Crew
7.8Entertainment
7.8Comfort
Airline reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

10.0 ExcellentTeresa, Apr 2026
SMF - LAX
Read more Delta reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

The return flight was great. The flight out to CDG was overbooked, and we were forced to check in a small carry-on at the get immediately before the flight, before getting out the stuff we needed on the plane.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

No screens or meal options. Freezing cold. Dirty seats. Left late.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

Flight itself excellent, but delayed so missed connection & got to destination 2 hrs later

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

Flight was delayed an no one cares, or try to help passengers to get the conexión.

Our flight was cancelled while we are on our way to the airport. So, no notice. We were rescheduled to another airline with a 2 hour later takeoff and so arrived at our destination on time. We pre-paid American Airlines $190 to upgrade our seats. No refund. So no use for AA or Kayak.

Terrible, horrible, disappointing- without telling us they changed planes and moved and separated our seats to opposite sides - said they changed seats putting us together - got to airport to find no, they did not - we sat opposing sides of plane - food overly salty to inedible, never saw stewardess but once - it was terrible

The business class layout of chairs was weired. You are sitting directly across stranger.,

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

Tv screens and movie selection v good. Friendly staff. They were really worried about max capacity and room for carryons. That is never fun but i had no problem finding space when I boarded.

My flight to London from Philadelphia was cancelled due to weather.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

Cancelled flight and re booked seats were a downgrade. British Airways said the upgrade was t available but when I checked it was but then they wouldn’t make it right

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

All crew except 1 were excellent. When I asked assistance with business class seat conversion to a bed (not being familiar as never used before but have numerous times with other airlines) crew member helped very reluctantly. I should have told her that business class seat conversion is totally different in each airline such as Delta, New Zealand Air and United. Sorry it was my 1st time with America Airlines. Now I know, I won't bother asking assistance in future.

The seats in Premier Economy were very comfortable. The food was better than average. The way British Airways handled our seating was atrocious.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Wish the food and overall service was better. They treat Business class passengers same as economy

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

Everything you need to know for your flight from Sacramento to Heathrow

Information on your arrival and departure airports