Cheap flights from London Heathrow Airport to Singapore from $620

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 26/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SIN
6 Jan — 13 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Singapore Changi are usually found in May or September, booked 50 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Heathrow to Singapore

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Singapore
Explore the most affordable flight options available from Heathrow to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 December 2025.

Sat 6/1214:05LHR - SIN
1 stop18h 10mKLM
Sat 24/101:40SIN - LHR
1 stop17h 05mKLM
Deal found 6/12$1,017
Wed 31/1221:10LHR - SIN
1 stop31h 00mShenzhen Airlines
Thu 15/103:00SIN - LHR
1 stop24h 10mShenzhen Airlines
Deal found 6/12$1,029
Sat 6/1214:05LHR - SIN
2 stops18h 50mMultiple Airlines
Sun 18/110:55SIN - LHR
1 stop18h 30mMultiple Airlines
Deal found 6/12$1,068
Mon 8/1209:30LHR - SIN
1 stop19h 00mGulf Air
Wed 21/120:00SIN - LHR
1 stop18h 35mGulf Air
Deal found 6/12$1,089
Mon 8/1208:40LHR - SIN
1 stop23h 35mKLM
Sun 14/1201:40SIN - LHR
1 stop23h 20mKLM
Deal found 7/12$1,100
Sat 6/1216:25LHR - SIN
1 stop15h 50mKLM
Sat 13/1201:40SIN - LHR
1 stop22h 25mKLM
Deal found 5/12$1,101
Sat 6/1206:30LHR - SIN
1 stop25h 45mMultiple Airlines
Fri 12/1210:55SIN - LHR
1 stop18h 30mMultiple Airlines
Deal found 5/12$1,103
Sun 28/1221:10LHR - SIN
1 stop36h 20mShenzhen Airlines
Thu 15/118:30SIN - LHR
1 stop32h 40mShenzhen Airlines
Deal found 7/12$1,121
Sat 6/1214:05LHR - SIN
2 stops18h 50mMultiple Airlines
Sun 1/222:50SIN - LHR
1 stop17h 05mMultiple Airlines
Deal found 6/12$1,138

Find flight deals from Heathrow to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Singapore (SIN). 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 7 December 2025.

Round-trip from

$951

One-way from

$620

Popular in

July

Cheapest in

May

Average price

$1,661

Good round-trip deal

$2,111 or less

Good one-way deal

$837 or less
Air China
  • Air China
  • 9/4-27/4
  • 2 total stops
  • 53h 45m total
  • London to Singapore
26/3
  • 26/3
  • 1 total stop
  • 24h 20m total
  • London to Singapore
Highest demand for flights based on searches. 11% potential increase in price ($261 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($65 potential savings vs. average return price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from London Heathrow to Singapore Changi.
Price to beat on a one-way flight from London Heathrow to Singapore Changi.

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Singapore 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 647,157 searches. Data last updated 7 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Singapore that are best for you.

Fly from

Heathrow

Fly to

Singapore

Route

Depart

Return

Price

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 10/3

14:25-18:00

2 stops19h 35m

Singapore Changi

Mon 23/3

00:05-08:05

1 stop16h 00m

$978

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Thu 22/1

21:50-12:30

1 stop30h 40m

Singapore Changi

Mon 26/1

20:00-14:45

1 stop26h 45m

$993

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sun 1/2

09:30-12:30

1 stop19h 00m

Singapore Changi

Sat 7/2

20:00-06:35

1 stop18h 35m

$1,038

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sun 8/2

09:30-12:30

1 stop19h 00m

Singapore Changi

Wed 18/2

20:00-06:35

1 stop18h 35m

$1,113

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 20/1

14:25-18:00

2 stops19h 35m

Singapore Changi

Mon 26/1

00:05-13:40

2 stops21h 35m

$1,150

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Mon 9/2

14:25-18:00

2 stops19h 35m

Singapore Changi

Mon 16/2

00:05-13:40

2 stops21h 35m

$1,150

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Mon 19/1

14:25-18:00

2 stops19h 35m

Singapore Changi

Sun 25/1

00:05-13:40

2 stops21h 35m

$1,151

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sat 17/1

14:25-18:00

2 stops19h 35m

Singapore Changi

Thu 5/2

00:05-08:05

1 stop16h 00m

$1,151

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sat 28/2

20:10-17:40

Nonstop13h 30m

Singapore Changi

Sun 15/3

23:05-06:15

Nonstop15h 10m

$1,256

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Fri 13/2

09:30-12:30

1 stop19h 00m

Singapore Changi

Thu 19/2

20:00-06:35

1 stop18h 35m

$1,259

Flights are sorted by cheapest return flights first.

Deals found on 5/12

Showing 1-10 of 22 results
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Best time to book a flight from Heathrow to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Heathrow with our price prediction graph.
Estimated return 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 London Heathrow Airport to Singapore

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Singapore. Price data was last updated on 5 December 2025.

The best time to book flights from London Heathrow Airport to Singapore is 50 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Singapore (average of $806). Flying from London Heathrow Airport to Singapore in July is currently the most expensive (average of $1,115). 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 LHR to SIN?

Find hourly flight availability from Heathrow to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 December 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Singapore as you normally would.

How much does it cost for a return flight from London Heathrow Airport to Singapore?

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Singapore. 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 into for flights to Singapore from London Heathrow?

    Singapore Changi (SIN) is the airport you will fly into if you book a flight from London Heathrow to Singapore. You should not have trouble finding flights to Changi from London Heathrow; the airport handles an average of 34 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Singapore airport from London Heathrow. It is only a 16.9 km journey from Changi (SIN) to Singapore’s city centre.

  • How long is the flight from London Heathrow Airport to Singapore?

    A quick flight from London Heathrow Airport to Singapore can take about 19h 35m. SWISS provides one of the quickest options available for as low as $978. The distance between London Heathrow Airport and Singapore is about 10874 km. This flight may include one or multiple stops.

  • What are the most reliable airlines from London Heathrow Airport to Singapore?

    The top 3 most reliable airlines when flying from London Heathrow Airport to Singapore are Air Canada (90%), Croatia Airlines (87%) and Scandinavian Airlines (85%).

  • What are the cheapest flights from London Heathrow Airport to Singapore?

    Looking for the cheapest flight from London Heathrow Airport to Singapore? While on average our users pay $5,503, our data indicates the cheapest price to be $706. The most popular route (London Heathrow - Singapore Changi), is priced around $831.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Singapore 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 London Heathrow Airport to Singapore?

    Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Singapore (average of $806). Flying from London Heathrow Airport to Singapore in July is currently the most expensive (average of $1,115). 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.

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