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Cheap Flights from Sacramento (SMF) to London (LHR)

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      Travellers and cabin class, 1 Adult, Economy

      Compare Sacramento International to London Heathrow flight deals

      Find the cheapest month or even day of the year to fly to London Heathrow

      Book the best London Heathrow fare with no extra fees

      Flight deals from Sacramento International to London Heathrow

      Looking for a cheap last-minute deal or the best return flight from Sacramento International Airport to London Heathrow Airport? If you want to travel next month, return fares start from $1,035. Find the lowest prices on one-way and return tickets right here.
      London.$1,003 per passenger.Departing Wed, 9 Dec, returning Wed, 13 Jan.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Sacramento International on Wed, 9 Dec, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Wed, 13 Jan, arriving in Sacramento International.Price includes taxes and charges.From $1,003, select.
      London.$1,006 per passenger.Departing Tue, 27 Oct, returning Tue, 3 Nov.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Sacramento International on Tue, 27 Oct, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Tue, 3 Nov, arriving in Sacramento International.Price includes taxes and charges.From $1,006, select.
      London.$1,012 per passenger.Departing Wed, 4 Nov, returning Wed, 18 Nov.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Sacramento International on Wed, 4 Nov, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Wed, 18 Nov, arriving in Sacramento International.Price includes taxes and charges.From $1,012, select.
      London.$1,018 per passenger.Departing Wed, 24 Feb, returning Fri, 5 Mar.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Sacramento International on Wed, 24 Feb, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Fri, 5 Mar, arriving in Sacramento International.Price includes taxes and charges.From $1,018, select.
      London.$1,022 per passenger.Departing Tue, 1 Dec, returning Thu, 10 Dec.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Sacramento International on Tue, 1 Dec, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Thu, 10 Dec, arriving in Sacramento International.Price includes taxes and charges.From $1,022, select.
      London.$1,035 per passenger.Departing Mon, 12 Oct, returning Tue, 27 Oct.Return flight with Air France.Outbound indirect flight with Air France, departs from Sacramento International on Mon, 12 Oct, arriving in London Heathrow.Inbound indirect flight with Air France, departs from London Heathrow on Tue, 27 Oct, arriving in Sacramento International.Price includes taxes and charges.From $1,035, select.
      London.$1,042 per passenger.Departing Tue, 22 Sep, returning Tue, 6 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Sacramento International on Tue, 22 Sep, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Heathrow on Tue, 6 Oct, arriving in Sacramento International.Price includes taxes and charges.From $1,042, select.
      London.$1,052 per passenger.Departing Tue, 22 Sep, returning Wed, 30 Sep.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Sacramento International on Tue, 22 Sep, arriving in London Heathrow.Inbound indirect flight with Air France, departs from London Heathrow on Wed, 30 Sep, arriving in Sacramento International.Price includes taxes and charges.From $1,052, select.
      London.$1,052 per passenger.Departing Sun, 21 Mar, returning Tue, 30 Mar.Return flight with Air France.Outbound indirect flight with Air France, departs from Sacramento International on Sun, 21 Mar, arriving in London Heathrow.Inbound indirect flight with Air France, departs from London Heathrow on Tue, 30 Mar, arriving in Sacramento International.Price includes taxes and charges.From $1,052, select.
      London.$1,066 per passenger.Departing Tue, 17 Nov, returning Tue, 1 Dec.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Sacramento International on Tue, 17 Nov, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Tue, 1 Dec, arriving in Sacramento International.Price includes taxes and charges.From $1,066, select.
      London.$1,079 per passenger.Departing Thu, 11 Feb, returning Tue, 16 Feb.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Sacramento International on Thu, 11 Feb, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Tue, 16 Feb, arriving in Sacramento International.Price includes taxes and charges.From $1,079, select.
      London.$1,082 per passenger.Departing Fri, 29 Jan, returning Thu, 4 Feb.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Sacramento International on Fri, 29 Jan, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Thu, 4 Feb, arriving in Sacramento International.Price includes taxes and charges.From $1,082, select.
      London.$1,126 per passenger.Departing Mon, 12 Apr, returning Sat, 24 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Sacramento International on Mon, 12 Apr, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Heathrow on Sat, 24 Apr, arriving in Sacramento International.Price includes taxes and charges.From $1,126, select.
      London.$1,128 per passenger.Departing Tue, 27 Apr, returning Mon, 10 May.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Sacramento International on Tue, 27 Apr, arriving in London Heathrow.Inbound indirect flight with Finnair, departs from London Heathrow on Mon, 10 May, arriving in Sacramento International.Price includes taxes and charges.From $1,128, select.
      London.$1,139 per passenger.Departing Mon, 15 Mar, returning Sun, 4 Apr.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Sacramento International on Mon, 15 Mar, arriving in London Heathrow.Inbound indirect flight with Air France, departs from London Heathrow on Sun, 4 Apr, arriving in Sacramento International.Price includes taxes and charges.From $1,139, select.
      London.$1,190 per passenger.Departing Fri, 1 Jan, returning Fri, 8 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Sacramento International on Fri, 1 Jan, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Heathrow on Fri, 8 Jan, arriving in Sacramento International.Price includes taxes and charges.From $1,190, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Sacramento International to London Heathrow found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Sacramento International to London Heathrow

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sacramento International to London Heathrow flights are currently cheapest in November.
      Sep
      from $1,052
      Oct
      from $1,035
      Nov
      from $1,012
      Dec
      from $1,022
      Jan
      from $1,190
      Feb
      from $1,079
      Mar
      from $1,052
      Apr
      from $1,126
      May
      from $1,270
      Jun
      from $1,596
      Jul
      from $1,463
      Aug
      from $1,645

      Sacramento International to London Heathrow: Alternative routes

      Compare routes from Sacramento International to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

      London City

      12km from central London
      Closest
      from $1,152
      Search flights

      London Heathrow

      23km from central London
      Cheapest
      from $1,003
      Search flights

      London Gatwick

      40km from central London
      from $1,064
      Search flights

      London Luton

      45km from central London
      from $2,187
      Search flights

      London Stansted

      49km from central London
      from $1,266
      Search flights

      London Southend

      57km from central London
      Search flights

      Sacramento to London: Flight information

      The things to know before you go.
      Cheapest flight found$1,003
      Cheapest month to flyDecember

      Finding cheap flights from Sacramento International to London Heathrow: Frequently asked questions

      The best price we found for a return flight from Sacramento International to London Heathrow is $1,003. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Sacramento International to London Heathrow. But we found flights with one or more stops from $1,003.
      As of September 2026, there are no flights flying from Sacramento International to London Heathrow.
      The cheapest month to fly from Sacramento International to London Heathrow is usually December.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sacramento International Airport to London Heathrow Airport on Wednesday, 9 December 2026.
      No airlines currently offer direct flights between Sacramento International Airport and London Heathrow Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Iberia offers the cheapest flight tickets to London Heathrow.

      Flying from Sacramento International Airport (SMF) to London Heathrow Airport (LHR): what you need to know

      • London's timezone is UTC+0, making London eight hours ahead of Sacramento.

      • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Be at the airport with enough time to board your SMF to LHR flight.

      • You'll likely experience longer queues during popular months like July. Arriving up to four hours ahead of an international flight and two hours for domestic departures will give you ample time for security and boarding.

      • Think about adding a stopover when booking your ticket from Sacramento International Airport to London Heathrow Airport. Simply deselect 'Direct flights only' to break up your trip, or perhaps explore a new destination along the way. Check out these options between SMF and LHR:

        • Denver International Airport

        • San Francisco International Airport

        • Portland Airport

      How to find the cheapest flights from Sacramento International Airport (SMF) to London Heathrow Airport (LHR)

      • $456 is currently the best price for a one-way Sacramento International Airport to London Heathrow Airport flight. A return flight starts at $1,003. These prices can change depending on demand.

      • Don't leave everything to the last minute. You're more likely to find cheap tickets from SMF to LHR if you book ahead. Airlines often offer some amazing early bird discounts.

      • Getting cheap flights from Sacramento International Airport to London Heathrow Airport is easy if you can be flexible with your trip dates. Use the 'Whole month' search tool to see the lowest prices across every month and snap up a great deal.

      • Picking up cheap flights from SMF to LHR is a piece of cake with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch as soon as a new discounted fare appears.

      • Pick your ideal departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Sacramento International Airport to London Heathrow Airport.

      Handy information about Sacramento International Airport (SMF)

      • The address for SMF is 6900 Airport Boulevard.

      • Sacramento International Airport earns top marks for on-time performance. 81% of flights that depart SMF reach their destination on time.

      • To reach Sacramento International Airport from central Sacramento, it'll take about 20 minutes if you're going by car. Of course, this depends on traffic. It's approximately 19 kilometres from the airport to the city centre.

      • The journey on public transport takes about 50 minutes.

      • Booking a night at a hotel can take the hassle out of getting to the airport on time. If you're looking for somewhere to stay before your flight from Sacramento International Airport to London Heathrow Airport, have a look at Holiday Inn Express & Suites Sacramento Airport Natomas by IHG. It's a quick drive from SMF.

      Arriving at London Heathrow Airport (LHR)

      When to fly to London Heathrow Airport (LHR)

      • The quietest month for a flight from Sacramento International Airport to London Heathrow Airport is March, while July is the busiest. Choose the best time to go to London based on whether you prefer a laid-back vibe or a more bustling atmosphere.

      • The warmest month in London is July, with temperatures ranging between 11ºC (52ºF) and 26ºC (79ºF). Lock in your flights from Sacramento International Airport to London Heathrow Airport in this month if this is the type of weather you enjoy.

      • January has average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Search for cheap tickets from SMF to LHR around that time if you'd rather travel in cooler conditions.

      Explore more of the United Kingdom

      • You've visited London, now it's time to discover more of the United Kingdom. Journey around 257 kilometres north-west to Manchester to tick off its leading attractions. From Manchester United Museum & Stadium Tour to The Homes of Football and Museum of Science and Industry, you'll have a full itinerary ahead.

      • Around 161 kilometres north-west of London, Birmingham is another essential stop in the United Kingdom. Start your sightseeing at Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.

      Plan smart, explore more

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      Plan the rest of your trip from Sacramento to London

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.