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$426+ Cheap flights from Heathrow (LHR) to Singapore (SIN)

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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SIN
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Singapore Changi are usually found in May or March, booked 32 days in advance, depart on a Thursday or Sunday and return on a Wednesday

Cheap 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 June 18, 2025.

Round-trip from

$633
(Booking.com)

One-way from

$426
(Trip.com)

Popular in

July

Cheapest in

May

Average price

$760

Good round-trip deal

$1,109 or less

Good one-way deal

$553 or less
From London Heathrow to Singapore Changi
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One-way flight from London Heathrow to Singapore Changi
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Highest demand for flights based on searches. 12% potential increase in price ($122 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from London Heathrow to Singapore Changi.
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Price to beat on a one-way flight from London Heathrow to Singapore Changi.
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Find flight deals from Heathrow to Singapore

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 June 18, 2025.

This Booking.com deal was found by Cheapflights users on 6/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/218:25 pmLHR - SIN
1 stop27h 25mAir China
Sun 11/169:30 amSIN - LHR
1 stop38h 25mAir China
Deal found 6/18$633
This Gotogate deal was found by Cheapflights users on 6/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/3010:05 pmLHR - SIN
1 stop31h 15mGulf Air
Mon 7/78:00 pmSIN - LHR
1 stop26h 20mGulf Air
Deal found 6/16$657
This KLM deal was found by Cheapflights users on 6/17. 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.
Fri 11/215:05 pmLHR - SIN
1 stop15h 10mKLM
Sun 11/231:40 amSIN - LHR
1 stop17h 05mKLM
Deal found 6/17$666
This FlightHub deal was found by Cheapflights users on 6/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3012:30 pmLHR - SIN
1 stop23h 00mAir India
Mon 10/69:15 amSIN - LHR
1 stop18h 05mAir India
Deal found 6/18$679
This British Airways deal was found by Cheapflights users on 6/18. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:35 pmLHR - SIN
Nonstop13h 30mBritish Airways
Thu 11/1311:05 pmSIN - LHR
Nonstop14h 20mBritish Airways
Deal found 6/18$680
This Lufthansa deal was found by Cheapflights users on 6/18. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/87:25 amLHR - SIN
1 stop26h 15mLufthansa
Wed 9/1711:25 pmSIN - LHR
1 stop15h 50mLufthansa
Deal found 6/18$689
This Shenzhen Airlines deal was found by Cheapflights users on 6/17. 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 Shenzhen Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/810:05 pmLHR - SIN
1 stop21h 25mShenzhen Airlines
Fri 9/193:30 amSIN - LHR
1 stop23h 20mShenzhen Airlines
Deal found 6/17$695
This Lufthansa deal was found by Cheapflights users on 6/18. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:50 pmLHR - SIN
1 stop15h 50mMultiple Airlines
Mon 10/2712:05 amSIN - LHR
1 stop19h 10mMultiple Airlines
Deal found 6/18$703
This Austrian Airlines deal was found by Cheapflights users on 6/17. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:00 amLHR - SIN
2 stops30h 40mAustrian Airlines
Wed 11/129:00 pmSIN - LHR
2 stops19h 20mAustrian Airlines
Deal found 6/17$714
This SWISS deal was found by Cheapflights users on 6/18. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/65:10 pmLHR - SIN
1 stop16h 40mSWISS
Sat 11/812:05 amSIN - LHR
1 stop20h 55mSWISS
Deal found 6/18$718
This Trip.com deal was found by Cheapflights users on 6/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/55:00 pmLHR - SIN
2 stops19h 35mRoyal Brunei Airlines
Tue 11/2512:10 pmSIN - LHR
2 stops27h 10mRoyal Brunei Airlines
Deal found 6/17$728
This deal was found by Cheapflights users on 6/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/229:30 amLHR - SIN
1 stop17h 10mEtihad Airways
Mon 9/299:10 pmSIN - LHR
1 stop16h 50mEtihad Airways
Deal found 6/18$744

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 18, 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

Sun 9/21

8:25 pm-6:50 am

1 stop27h 25m

Singapore Changi

Sun 11/16

9:30 am-3:55 pm

1 stop38h 25m

$633

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Mon 6/30

10:05 pm-12:20 pm

1 stop31h 15m

Singapore Changi

Mon 7/7

8:00 pm-3:20 pm

1 stop26h 20m

$657

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Fri 11/21

11:45 am-4:15 pm

1 stop20h 30m

Singapore Changi

Sun 11/23

1:40 am-7:40 am

1 stop38h 00m

$666

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 9/30

12:30 pm-6:30 pm

1 stop23h 00m

Singapore Changi

Mon 10/6

9:15 am-8:20 pm

1 stop18h 05m

$679

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Wed 9/10

7:35 pm-4:05 pm

Nonstop13h 30m

Singapore Changi

Thu 11/13

11:05 pm-5:25 am

Nonstop14h 20m

$680

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Mon 9/8

7:25 am-4:40 pm

1 stop26h 15m

Singapore Changi

Mon 9/15

11:25 pm-9:55 am

1 stop17h 30m

$689

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Mon 9/8

10:05 pm-2:30 am

1 stop21h 25m

Singapore Changi

Fri 9/19

3:30 am-7:50 pm

1 stop23h 20m

$695

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Wed 10/1

5:50 pm-4:40 pm

1 stop15h 50m

Singapore Changi

Mon 10/27

12:05 am-11:15 am

1 stop19h 10m

$703

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Thu 11/6

5:10 pm-5:50 pm

1 stop16h 40m

Singapore Changi

Sat 11/8

12:05 am-1:00 pm

1 stop20h 55m

$718

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Wed 11/5

5:00 pm-8:35 pm

2 stops19h 35m

Singapore Changi

Tue 11/25

12:10 pm-7:20 am

2 stops27h 10m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 37 results
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The best insider tips for London Heathrow Airport to Singapore flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your London Heathrow Airport to Singapore trip
Airports
LHR

Expect long security lines at Heathrow. Ensure all liquids are in a small bag to avoid delays during manual screenings.

Read more about LHRby Ramsey Qubein
SIN

For a quick city transfer, use the Grab rideshare app from Changi. It's faster and cheaper than taxis, especially from Terminal 4.

Read more about SINby Yulia Denisyuk
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Yulia Denisyuk

Yulia Denisyuk

Expert on SIN

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more

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 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 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 round-trip flight from Heathrow to Singapore. Price data was last updated on June 13, 2025.

Booking 32 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Singapore. 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 London Heathrow Airport to Singapore?

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Singapore (average of $1,011). Flying from London Heathrow Airport to Singapore in December is currently the most expensive (average of $1,684). 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 June 18, 2025.

When flying from London Heathrow Airport to Singapore, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 48% versus a flight at noon.

Weekly flight availability from London Heathrow Airport to Singapore

Explore weekly flight availability from Heathrow to Singapore. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 18, 2025.

The most flights from LHR to SIN are scheduled on a Monday (38 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (37 on average).

Rainfall in Singapore by month

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

In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

Temperature in Singapore by month

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

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. 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 Singapore. Reviews last updated June 18, 2025.
Get a feel of what it's like to fly with Emirates, Hainan Airlines and Singapore Airlines from London to Singapore by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,273 reviews

Food

7.8

Crew

8.3

Comfort

8.0

Boarding

8.1

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Emirates
8.1
Very good
3,273 reviews
Emirates
8.1
Very good
3,273 reviews

Food

7.8

Crew

8.3

Comfort

8.0

Boarding

8.1

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Hainan Airlines
8.1
Very good
39 reviews
Emirates
8.1
Very good
3,273 reviews

Food

7.8

Crew

8.3

Comfort

8.0

Boarding

8.1

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Singapore Airlines
8.1
Very good
1,310 reviews
Emirates
8.1
Very good
3,273 reviews

Food

7.8

Crew

8.3

Comfort

8.0

Boarding

8.1

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
KLM
7.8
Good
1,364 reviews
Emirates
8.1
Very good
3,273 reviews

Food

7.8

Crew

8.3

Comfort

8.0

Boarding

8.1

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

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?

    Located just 10.5 mi from the city center, Singapore Changi is the airport most travelers will use when flying to Singapore from London Heathrow. Booking flights from London Heathrow to Changi (SIN) should be relatively easy as there are 37 daily inbound flights from London Heathrow from 6 different airlines.

  • What are the cheapest airlines flying from London Heathrow Airport to Singapore round-trip?

    According to our current data, Air China ($633), Gulf Air ($657), and KLM ($666) offers the cheapest pricing from London Heathrow Airport to Singapore. You may be able to fly from London Heathrow Airport to Singapore for 26% less than the average price by searching for these airlines.

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

    One-way options have recently been found by users for as low as $426 on Air India. Other airlines that offer cheap prices include Singapore Airlines from $434 and China Southern from $440 one-way.

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

    Before booking your flight to Singapore from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Qantas Airways (70%), American Airlines (70%), Iberia( 70%).

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

    While on average a flight from London Heathrow Airport to Singapore is generally $6,778, our data shows the cheapest flight currently is $491. When looking at the most popular route, (London Heathrow - Singapore Changi), you can expect to pay $576 for that flight.

  • 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 vacation 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Singapore (average of $1,011). Flying from London Heathrow Airport to Singapore in December is currently the most expensive (average of $1,684). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Singapore flights

Top 6 airlines flying from Heathrow to Singapore

Discover the top 6 airlines that operate flights from Heathrow to Singapore. 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 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Gulf AirCheapest$514Average$760FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$620Average$856FlexibilityNo cancel feeOn-time70%
Etihad AirwaysCheapest$652Average$698FlexibilityNo cancel feeOn-time75%
Singapore AirlinesCheapest$697Average$875FlexibilityNo cancel feeOn-time81%
Thai AirwaysCheapest$782Average$816FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,024Average$1,269FlexibilityNo cancel feeOn-time68%

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