$398 Cheap Flights from London (LHR) to Singapore (SIN)

View $398 flight on Wed, Sep 17, 2025Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Singapore Changi Airport (SIN)

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Find available prices by choosing your travel dates.

Cheap Flights from London to Singapore (LHR-SIN)

Prices were available within the past 7 days and start at $398 for one-way flights and $458 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hainan Airlines
Wed, May 28 - Tue, Jun 3
LHR
London
SIN
Singapore
$458 Roundtrip, found 1 day ago
$458
Roundtrip
found 1 day ago
Select Hainan Airlines flight, departing Wed, May 28 from London to Singapore, returning Tue, Jun 3, priced at $458 found 1 day ago
Gulf Air
Wed, May 28 - Tue, Jun 3
LHR
London
SIN
Singapore
$517 Roundtrip, found 1 day ago
$517
Roundtrip
found 1 day ago
Select Gulf Air flight, departing Wed, May 28 from London to Singapore, returning Tue, Jun 3, priced at $517 found 1 day ago
British Airways
Wed, May 28 - Tue, Jun 3
LHR
London
SIN
Singapore
$547 Roundtrip, found 1 day ago
$547
Roundtrip
found 1 day ago
Select British Airways flight, departing Wed, May 28 from London to Singapore, returning Tue, Jun 3, priced at $547 found 1 day ago
Shenzhen Airlines
Sat, May 3 - Wed, May 21
LHR
London
SIN
Singapore
$575 Roundtrip, found 1 day ago
$575
Roundtrip
found 1 day ago
Select Shenzhen Airlines flight, departing Sat, May 3 from London to Singapore, returning Wed, May 21, priced at $575 found 1 day ago
Air India
Wed, Jun 25 - Wed, Jul 9
LHR
London
SIN
Singapore
$583 Roundtrip, found 6 days ago
$583
Roundtrip
found 6 days ago
Select Air India flight, departing Wed, Jun 25 from London to Singapore, returning Wed, Jul 9, priced at $583 found 6 days ago
China Southern Airlines
Mon, May 12 - Tue, May 27
LHR
London
SIN
Singapore
$602 Roundtrip, found 3 days ago
$602
Roundtrip
found 3 days ago
Select China Southern Airlines flight, departing Mon, May 12 from London to Singapore, returning Tue, May 27, priced at $602 found 3 days ago
Air China
Wed, May 28 - Tue, Jun 3
LHR
London
SIN
Singapore
$619 Roundtrip, found 1 day ago
$619
Roundtrip
found 1 day ago
Select Air China flight, departing Wed, May 28 from London to Singapore, returning Tue, Jun 3, priced at $619 found 1 day ago
Etihad Airways
Mon, May 5 - Mon, May 19
LHR
London
SIN
Singapore
$632 Roundtrip, found 1 day ago
$632
Roundtrip
found 1 day ago
Select Etihad Airways flight, departing Mon, May 5 from London to Singapore, returning Mon, May 19, priced at $632 found 1 day ago
China Eastern Airlines
Wed, May 28 - Tue, Jun 3
LHR
London
SIN
Singapore
$633 Roundtrip, found 1 day ago
$633
Roundtrip
found 1 day ago
Select China Eastern Airlines flight, departing Wed, May 28 from London to Singapore, returning Tue, Jun 3, priced at $633 found 1 day ago
Lufthansa
Tue, Feb 10 - Wed, Mar 11
LHR
London
SIN
Singapore
$674 Roundtrip, found 6 days ago
$674
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Tue, Feb 10 from London to Singapore, returning Wed, Mar 11, priced at $674 found 6 days ago
Flights from London (LHR) to Singapore (SIN)
Origin airport
Heathrow
Destination airport
Changi
Airlines serving
Air China, Air India, Austrian Airlines, British Airways, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Emirates, Etihad Airways, Finnair, Gulf Air, Lufthansa, Malaysia Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, SriLankan Airlines, Swiss International Air Lines, Thai Airways International, Turkish Airlines
Roundtrip price
$457
Distance
6761 mi

London to Singapore Flights

The cheapest times to fly from London to Singapore

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Singapore are during the month of May. You can find some of the cheapest flights from London to Singapore with Expedia's search tool and vast selection of airlines.

The best time to book a flight from London to Singapore

Sunday is one of the best days to book for cheap flights from London to Singapore: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from London to Singapore

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Singapore in 2025. You can also book with separate airlines for your outbound and return journeys, from $398 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Singapore flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Singapore airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Changi Airport (SIN) cost?
Score cheap return tickets from Heathrow Airport (LHR) to Changi Airport (SIN) starting from $670. Grab your seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a British Airways flight leaving LHR on May 12 2025 and touching down at SIN. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from LHR to SIN?
The cheapest flights from LHR to SIN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Heathrow Airport (LHR) to Changi Airport (SIN)?
You can choose from 3 carriers that operate direct flights from Heathrow Airport (LHR) to Changi Airport (SIN). These include:

  • Singapore Airlines
  • British Airways
  • Qantas

What is the cheapest airline that flies from LHR to SIN?
Travel from LHR to SIN with Qantas Airways. This carrier currently offers the cheapest one-way ticket on this route, starting at $516. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LHR on June 5 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Heathrow Airport (LHR) to Changi Airport (SIN)?
With an average of 7 nonstop flights departing from Heathrow Airport (LHR) to Changi Airport (SIN) each day, you’ll be soaring through the skies in no time.
What are the most popular departure times for flights from Heathrow Airport (LHR) to Changi Airport (SIN)?
Flights between LHR and SIN are their busiest at 8 PM. If you want a more relaxed trip and possibly cheaper tickets, choose a departure that’s outside typical rush times.
What day of the week has the most flights from LHR to SIN?
Thursday has the most flights from Heathrow Airport (LHR) to Changi Airport (SIN). Consider taking off on this day and you’ll have a greater chance of finding a departure that fits your plans.
What is the earliest flight from Heathrow Airport (LHR) to Changi Airport (SIN)?
Heathrow Airport (LHR)’s earliest flight to Changi Airport (SIN) departs at approximately 9:10AM UTC+0. With a total travel time of 12h 50m, you’ll touch down at around 6:00AM UTC+8.
How long does it take to fly from Heathrow Airport (LHR) to Changi Airport (SIN)?
It usually takes 13 hours and 2 minutes to fly the 6,800 mi from LHR to SIN.
What is the best time to fly from Heathrow Airport (LHR) to Changi Airport (SIN)?
To reach Changi Airport (SIN) on schedule, pick a flight that leaves Heathrow Airport (LHR) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Singapore from Heathrow Airport (LHR)?
If you’re flying on a direct flight from Heathrow Airport (LHR) to Singapore, Changi Airport (SIN) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Changi Airport (SIN) last-minute?
Holding off until right before your break to book your flight from LHR to SIN often results in higher prices. While you may find some last-minute deals, they’re not always guaranteed. Keep your travel plans flexible for the best chance of landing a bargain.
Is it cheaper to book a LHR to SIN flight and hotel package?
Securing a LHR to SIN flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our impressive range of accommodations and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Changi Airport (SIN)?
If you reserved your LHR to SIN flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

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*Available to One Key members.