$311 Cheap Flights from Singapore (SIN) to London (LHR)

View $311 flight on Tue, Jun 3, 2025Opens in a new window

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

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Find available prices by choosing your travel dates.

Cheap Flights from Singapore to London (SIN-LHR)

Prices were available within the past 7 days and start at $311 for one-way flights and $571 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Gulf Air
Mon, Jun 9 - Thu, Jun 19
SIN
Singapore
LHR
London
$571 Roundtrip, found 1 day ago
$571
Roundtrip
found 1 day ago
Select Gulf Air flight, departing Mon, Jun 9 from Singapore to London, returning Thu, Jun 19, priced at $571 found 1 day ago
British Airways
Sun, Jun 8 - Wed, Jun 18
SIN
Singapore
LHR
London
$572 Roundtrip, found 1 day ago
$572
Roundtrip
found 1 day ago
Select British Airways flight, departing Sun, Jun 8 from Singapore to London, returning Wed, Jun 18, priced at $572 found 1 day ago
Etihad Airways
Sat, Jun 7 - Tue, Jun 17
SIN
Singapore
LHR
London
$600 Roundtrip, found 1 day ago
$600
Roundtrip
found 1 day ago
Select Etihad Airways flight, departing Sat, Jun 7 from Singapore to London, returning Tue, Jun 17, priced at $600 found 1 day ago
Shenzhen Airlines
Wed, Jun 4 - Fri, Jun 13
SIN
Singapore
LHR
London
$653 Roundtrip, just found
$653
Roundtrip
just found
Select Shenzhen Airlines flight, departing Wed, Jun 4 from Singapore to London, returning Fri, Jun 13, priced at $653 just found
Swiss International Air Lines
Wed, May 14 - Tue, May 20
SIN
Singapore
LHR
London
$678 Roundtrip, found 5 days ago
$678
Roundtrip
found 5 days ago
Select Swiss International Air Lines flight, departing Wed, May 14 from Singapore to London, returning Tue, May 20, priced at $678 found 5 days ago
Cathay Pacific
Sat, Jun 7 - Tue, Jun 17
SIN
Singapore
LHR
London
$685 Roundtrip, found 1 day ago
$685
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Sat, Jun 7 from Singapore to London, returning Tue, Jun 17, priced at $685 found 1 day ago
Turkish Airlines
Sun, Jun 8 - Wed, Jun 18
SIN
Singapore
LHR
London
$693 Roundtrip, found 1 day ago
$693
Roundtrip
found 1 day ago
Select Turkish Airlines flight, departing Sun, Jun 8 from Singapore to London, returning Wed, Jun 18, priced at $693 found 1 day ago
Air France
Sun, Jun 8 - Wed, Jun 18
SIN
Singapore
LHR
London
$700 Roundtrip, found 1 day ago
$700
Roundtrip
found 1 day ago
Select Air France flight, departing Sun, Jun 8 from Singapore to London, returning Wed, Jun 18, priced at $700 found 1 day ago
Hainan Airlines
Wed, May 7 - Wed, May 14
SIN
Singapore
LHR
London
$720 Roundtrip, found 7 hours ago
$720
Roundtrip
found 7 hours ago
Select Hainan Airlines flight, departing Wed, May 7 from Singapore to London, returning Wed, May 14, priced at $720 found 7 hours ago
Air India
Mon, Jun 9 - Fri, Jun 20
SIN
Singapore
LHR
London
$738 Roundtrip, found 1 day ago
$738
Roundtrip
found 1 day ago
Select Air India flight, departing Mon, Jun 9 from Singapore to London, returning Fri, Jun 20, priced at $738 found 1 day ago
Flights from Singapore (SIN) to London (LHR)
Origin airport
Changi
Destination airport
Heathrow
Airlines serving
Air India, Asiana Airlines, British Airways, Cathay Pacific, China Southern Airlines, Emirates, Etihad Airways, Finnair, Garuda Indonesia, Gulf Air, Japan Airlines, Lufthansa, Malaysia Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, SriLankan Airlines, Swiss International Air Lines, Thai Airways International, Turkish Airlines
Roundtrip price
$570
Distance
6761 mi

Singapore to London Flights

The cheapest times to fly from Singapore to London

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 Singapore to London are during the month of June. You can find some of the cheapest flights from Singapore to London with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Singapore to London

Sunday is one of the best days to book for cheap flights from Singapore to London: 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 Singapore to London

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 Singapore to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $311 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 Singapore to London 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 Singapore to London 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 Changi Airport (SIN) to Heathrow Airport (LHR) cost?
Cheap return flights from Changi Airport (SIN) to Heathrow Airport (LHR) start from $757. 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 SIN on May 15 2025 and touching down at LHR. The price was last updated on April 20 2025 and has not changed since.
What is the cheapest month to fly from SIN to LHR?
The cheapest flights from SIN to LHR 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 Changi Airport (SIN) to Heathrow Airport (LHR)?
Pick from 3 airlines that fly nonstop from Changi Airport (SIN) to Heathrow Airport (LHR). Including:

  • Singapore Airlines
  • British Airways
  • Qantas

What is the cheapest airline that flies from SIN to LHR?
Currently, the cheapest airline offering one-way flights from SIN to LHR is British Airways. You can jet off on this route from $646. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SIN on July 15 2025. Prices were last updated on April 20 2025 and have not changed since.
How many flights per day from Changi Airport (SIN) to Heathrow Airport (LHR)?
With, on average, 7 nonstop flights departing from Changi Airport (SIN) to Heathrow Airport (LHR) daily, you’ll be off on your next adventure in no time.
What are the most popular departure times for flights from Changi Airport (SIN) to Heathrow Airport (LHR)?
Flights between SIN and LHR are busiest at 11 PM. If you’d like a less crowded experience and potentially cheaper fares, choose a time outside the usual busy windows.
What day of the week has the most flights from SIN to LHR?
If you travel on a Thursday, you’ll get the biggest range of choices for flights from Changi Airport (SIN) to Heathrow Airport (LHR).
What is the earliest flight from Changi Airport (SIN) to Heathrow Airport (LHR)?
The first flight of the day departing from Changi Airport (SIN) is at around 1:10AM UTC+8. Board this plane and you’ll reach Heathrow Airport (LHR) at approximately 7:25AM UTC+0. The total time in the air is 14h 15m.
How long does it take to fly from Changi Airport (SIN) to Heathrow Airport (LHR)?
The average flight time from SIN to LHR is 14 hours and 28 minutes, covering a distance of 6,800 mi.
What airline has the least delays from SIN to LHR?
British Airways has the best track record for on-time direct flights from Changi Airport (SIN) to Heathrow Airport (LHR), with an on-time score of 89%. Use the Expedia App to view your journey status before you head off and get immediate updates about any changes.
What is the best time to fly from Changi Airport (SIN) to Heathrow Airport (LHR)?
Select a flight from Changi Airport (SIN) to Heathrow Airport (LHR) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**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 London from Changi Airport (SIN)?
If you’re traveling on a direct flight from Changi Airport (SIN) to London, you can touch down at either Heathrow Airport (LHR) or Gatwick Airport (LGW).
Is it cheaper to buy a plane ticket from Changi Airport (SIN) to Heathrow Airport (LHR) last-minute?
Booking your flight from SIN to LHR shortly before your trip is generally more expensive. But if there’s some wiggle room with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a SIN to LHR flight and hotel package?
You’ll generally save money by securing a SIN to LHR flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one convenient place. Once you’ve chosen your preferred flights and accommodations, consider adding extras including car rentals, tours and activities.
Can I cancel or change the date of my flight from Changi Airport (SIN) to Heathrow Airport (LHR)?
You can usually reschedule or cancel your SIN to LHR flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find more information on our Customer Service portal.

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*Available to One Key members.