$394 Cheap Flights from London (LHR) to Singapore (SIN)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
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 $394 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
Gulf Air
British Airways
Shenzhen Airlines
Air China
Etihad Airways
China Eastern Airlines
Air India
China Southern Airlines
Swiss International Air Lines

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 $675. 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 17 2025 and touching down at SIN. The price was last updated on April 27 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 $520. 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 9 2025. Prices were last updated on April 27 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.
*Available to One Key members.