S$ 421 Find Cheap Flights to London – Compare and Save

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Everything you should know

Cheapest return flight
S$ 871
Typical prices: S$ 938-S$ 1,290
Finnair
Mon 29-10Mon 5-11
SIN - LHR • 1 stop
Cheapest direct flights
S$ 1,035
Typical prices: S$ 1,046-S$ 1,458
British Airways
Wed 14-11Wed 21-11
SIN - LHR • Direct
Direct flights
You can fly direct with Singapore Airlines, British Airways, and Qantas Airways. Average duration is 14h 21m
FAQs
FAQs
Top airlines
Most flights • 42 per week
Best reviews • 8.2 score
Airline reviews
+1
Airline reviews
+1
When to book
in advance
Our data shows that travellers who book at least 18 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 9% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to London

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to London

Thu, 29 Oct - Thu, 5 Nov
Finnair Logo
22:05 - 09:10SIN  Singapore Changi-LHR London Heathrow
19h 05m1 stop Helsinki-Vantaa
Finnair Logo
10:20 - 18:40LHR  London Heathrow-SIN Singapore Changi
24h 20m1 stop Helsinki-Vantaa
S$ 871Finnair
Sat, 14 Nov - Sun, 29 Nov
Turkish Airlines Logo
23:15 - 09:55SIN  Singapore Changi-STN London Stansted
18h 40m1 stop Istanbul
Turkish Airlines Logo
17:20 - 17:40STN  London Stansted-SIN Singapore Changi
16h 20m1 stop Istanbul
S$ 874Turkish Airlines
Sat, 14 Nov - Sat, 28 Nov
Turkish Airlines Logo
23:15 - 09:55SIN  Singapore Changi-STN London Stansted
18h 40m1 stop Istanbul
Turkish Airlines Logo
17:20 - 17:40STN  London Stansted-SIN Singapore Changi
16h 20m1 stop Istanbul
S$ 874Turkish Airlines
Wed, 21 Oct - Wed, 28 Oct
Malaysia Airlines Logo
19:15 - 19:10SIN  Singapore Changi-LHR London Heathrow
30h 55m2 stops Kuala Lumpur Intl Muscat Seeb
Malaysia Airlines Logo
20:05 - 00:30LHR  London Heathrow-SIN Singapore Changi
20h 25m2 stops Muscat Seeb Kuala Lumpur Intl
S$ 875Malaysia Airlines
Sun, 20 Dec - Mon, 4 Jan
Hainan Airlines Logo
16:15 - 18:15SIN  Singapore Changi-LHR London Heathrow
34h 00m2 stops Haikou Meilan Intl Changsha Huanghua Intl
Hainan Airlines Logo
21:00 - 11:10LHR  London Heathrow-SIN Singapore Changi
30h 10m2 stops Changsha Huanghua Intl Haikou Meilan Intl
S$ 875Hainan Airlines
Sun, 1 Nov - Fri, 6 Nov
Hainan Airlines Logo
16:15 - 18:15SIN  Singapore Changi-LHR London Heathrow
34h 00m2 stops Haikou Meilan Intl Changsha Huanghua Intl
Hainan Airlines Logo
21:00 - 03:10LHR  London Heathrow-SIN Singapore Changi
22h 10m2 stops Changsha Huanghua Intl Haikou Meilan Intl
S$ 875Hainan Airlines
Thu, 11 Feb - Sun, 28 Feb
Malaysia Airlines Logo
06:20 - 18:25SIN  Singapore Changi-LHR London Heathrow
20h 05m2 stops Kuala Lumpur Intl Muscat Seeb
Malaysia Airlines Logo
20:05 - 12:55LHR  London Heathrow-SIN Singapore Changi
32h 50m2 stops Muscat Seeb Kuala Lumpur Intl
S$ 876Malaysia Airlines
Sat, 17 Oct - Wed, 4 Nov
Oman Air Logo
20:50 - 06:30SIN  Singapore Changi-LHR London Heathrow
16h 40m1 stop Muscat Seeb
Oman Air Logo
20:05 - 19:40LHR  London Heathrow-SIN Singapore Changi
15h 35m1 stop Muscat Seeb
S$ 876Oman Air
Sun, 6 Dec - Thu, 7 Jan
Oman Air Logo
20:50 - 05:55SIN  Singapore Changi-LHR London Heathrow
17h 05m1 stop Muscat Seeb
Oman Air Logo
20:05 - 19:40LHR  London Heathrow-SIN Singapore Changi
15h 35m1 stop Muscat Seeb
S$ 877Oman Air
Thu, 29 Oct - Thu, 5 Nov
Finnair Logo
22:05 - 09:10SIN  Singapore Changi-LHR London Heathrow
19h 05m1 stop Helsinki-Vantaa
Finnair Logo
10:20 - 18:40LHR  London Heathrow-SIN Singapore Changi
24h 20m1 stop Helsinki-Vantaa
S$ 883Finnair
Booking Insights

Price, demand, and travel trends for flights to London

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What is the cheapest flight to London?

Singapore to London is the cheapest route at S$ 871 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to London?

On average, a return flight from Singapore to London costs S$ 1,069, based on KAYAK data over the past 12 months. Return fares from Singapore average S$ 1,069.

What is the cheapest day to fly to London?

Monday is the cheapest day to fly to London at S$ 1,032 return on average over the past 12 months on KAYAK. Saturday is the most expensive at S$ 1,141.

What is the cheapest month to fly to London?

•January is the cheapest month to fly to London with an average price of S$ 969 return.
•December (S$ 1,201) and July (S$ 1,170) are the most expensive.
•Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to London?

Evening flights to London are the cheapest at S$ 982 return on average. Afternoon flights are the most expensive at S$ 1,171.

What is a good deal for flights to London?

Flights under S$ 938 are considered a good deal. 25% of KAYAK users found return flights to London at or below these prices, with the lowest fares from:
•Singapore S$ 938.

When are flights to London the cheapest?

Flights to London are cheapest 18 weeks before departure. Booking in this window typically costs about 17% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for flights to London

Low season

March

Cheapest flight

S$ 421
Beat the crowds with an average 32% drop in traveller numbers.
The most popular month to fly with an average 14% increase in traveller numbers.
One-way flight from Singapore to London Heathrow Airport

When to book flights to London

Are your dates flexible? Find out the best times to travel to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to London, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How do I know if a flight to London is a good deal?

    A good deal on a flight to London is around S$ 938 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • Which airports serve London?

    Flights to London arrive at: London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN).

  • How long is a direct flight to London?

    Direct flights to London are available from Singapore, with a flight time of about 13h 45m.

  • How expensive are last-minute flights to London?

    Last-minute fares to London (booked within two weeks of departure) are typically 6% higher than the average return fare of S$ 1,069.

  • What is the difference between the most popular and the most frequent airline at London?

    Singapore Airlines operates the most flights from Singapore to London at 42 per week, while British Airways is the airline most often selected by KAYAK users searching for flights from Singapore to London. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

  • Which airlines should I consider for flights to London?

  • How many flights serve London?

    London receives 10 flights per day and 70 per week from across the world. Singapore has the most flights to London with 70 weekly flights.

  • Which airports serve London and the surrounding area?

    Flights to London can arrive at several major airports serving the metro area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Nearby alternatives within 80.5 km of London include London City (LCY). This airport is not in London itself but may be useful depending on your route, airline, and onward travel plans.

Your guide to booking London flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For the best chance at a low fare to London, book around 18 weeks before departure. Based on KAYAK data from the last 12 months, fares are historically about 17% lower during this window than last-minute fares.
  • For flights to London, a good return fare is around S$ 938. If you find a fare below that, you're getting a strong deal.
  • If your travel dates are flexible, consider flying to London in January. Return fares historically average S$ 969, making January the cheapest month to travel based on KAYAK data from the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to afternoon to save up to S$ 189 on a return flight. Afternoon flights to London average S$ 982 compared to S$ 1,171 for midday flights.
  • Bag allowances vary by airline, fare type, cabin class, and route. On flights to London, some airlines may include bags at no extra cost. For example, British Airways includes a cabin bag and a checked bag in Economy class, Singapore Airlines includes a cabin bag and a checked bag in Economy class, and Qantas Airways includes a cabin bag and a checked bag in Economy class. Always check the fare details before booking, since bag policies can change by ticket type.
  • Once you arrive in London, a few great places to start are British Museum and London Bridge. These are popular with first-time visitors and can give you a good feel for the area.

Reviews of the top 5 airlines flying to London

 
Need help choosing which airline to fly with to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1619 reviews
8.0Comfort
8.7Crew
7.8Food
8.3Boarding
8.1Entertainment
Airline reviews

It is not so much I had bad experience with Singapore Airlines, but with Kayak and particularly Underpricer. My wife and my seat arrangements were changed some times after we booked our tickets and reserved our seats I February 14, 2026. However, after our arrival we realized that we were separated and sitting in different isles. Our return tickets indicated the same. Our several calls to your Underpricer customer care were useless as they cared how much they could charge us rather than actually help us. At the end they referred us to Singapore Airlines. If that was the solution, why did I have to call your Underpricer customer care. I will definitely erase your app from my phone and I will never use Kayak for future traveling. After all, there are so many agencies that I can use other than your company.

2.0 MediocreFarid, Sept 2026
Read more Singapore Airlines reviews

It is not so much I had bad experience with Singapore Airlines, but with Kayak and particularly Underpricer. My wife and my seat arrangements were changed some times after we booked our tickets and reserved our seats I February 14, 2026. However, after our arrival we realized that we were separated and sitting in different isles. Our return tickets indicated the same. Our several calls to your Underpricer customer care were useless as they cared how much they could charge us rather than actually help us. At the end they referred us to Singapore Airlines. If that was the solution, why did I have to call your Underpricer customer care. I will definitely erase your app from my phone and I will never use Kayak for future traveling. After all, there are so many agencies that I can use other than your company.

It was good but n it to the same standard as London to Singapore

Great flight attendants as always, they were super helpful and friendly. Made my kids super comfortable during long flight. The food were fine, some great taste some not so much specially the scramble eggs thats too watery. And maybe since its general food, better to not serve coffee pudding that kids cant really eat or maybe just serve different pudding for kids.

a longer gap btw the supper and breakfast would have been better - felt like the sleep was way too fragmented on this red eye flight

The quality and the quantity of food was terrible. I was starving to death at the end of the flight. Used serve 3 meals long time ago, now reduced to 2 meals during the 17 hours flight. Never offered wine or tea to us. We have to ask . Extremely hard to get the attention of the flight attendants. They intentionally ignore us to minimize the service. Bathrooms were dirty

SQ is a market leader for good reason and its 787 this time was actually comfortable and the service top notch as always.

Fast and efficient flight. Wifi worked well. Food selection could have been better

Never book through Kayak. They can offload booking to third parties that are completely horrible.

We flew business class. It was excellent. For a 6’4” individual, the seats were slightly uncomfortable for sleeping. But this is only comparison to other business class seats. Otherwise, the crew was incredibly attentive, And the service was impeccable.

The booking experience was bad. Our six character booking ID number disappeared the day before the flight, We could not find out what happened or what was the status of our flight, scheduled for the next day. We finally found the right number to contact Singapore Airlines on the matter (not easy). The Singapore agent worked through the issue in a little over thirty minutes on the phone, the day before the flight. That was great. I'm very happy with Singapore Airlines and their performance. Contact with a competent person on the matter was near impossible. It seems no one in business these days wants to deal with customers once they've pocketed the money. There were resellers, including Kayak, involved in the chain. When we finally got through to Underpricer, we did get a return call that could have proved helpful. But by that time the matter had been resolved by the Singapore agent. Majestic Vacations, the reseller who received the payment was less than worthless. That's just a fast buck operation. Ugh.

On the way there the food was not a good Standerd and fly Dubai is very cramped and again the food was not a good Standerd but on the way back food was excellent and staff were very helpful specially a lady which I took time to take her name Maria and another staff which was South African very very polite and helpful i am very sorry that I got her name

Very bad service and food variety will never come back again

My baby was with me it was really good experience with emirates

Fantastic as ever. Great staff super catering and excellent service.

Flight and entertainment great. Food needs to be improved, only one choice on the menu. Staff worked well throughout.

Crew were excellent and the bar service and chat fantastic. Cheese board delicious. Amenity kit good, very disappointing not getting pyjamas on this leg of the flight and needed to reuse from earlier flight.

Everything was superb, only bad point was that the fast track on London Heathrow arrivals was not handed out to me and I had to go back to the gate to collect it.

Superb experience. I hope they bring back the fast track option at Heathrow immigration.

I liked theAVML food. Taste was alright and quantity was enough. Sometimes during the flight I felt that the smell from toilet was coming to the cabin

You can improve in many ways First the crew in general is good, but needs to work with passion to their works not like robots Second, collecting the ear headphones long time before landing is strange The crew should deal with the passengers with respect and descent way not like giving orders

It was ok, but not what it was like 20 years ago

This was the worst flight I’ve been on. Getting on the plane where is was 30 degrees outside was hotter on board cabin must’ve been 33 degrees. This is a health hazard. They cannot be doing this to save on fuel. People could die from this!!. Fans and a/c was, off entertainment was off. Poor excuse given. Crew made the excuse that the system didn’t have enough power. They basically were operating on one engine to save on jet fuel till 3 hours later on cruising altitude and they then started the second engine. And finally the cabin was cooled. On a 7hour red eye flight this made it so uncomfortable and impossible to sleep.

The wifi was out. Otherwise it was great flight. Richard, as CSM, was excellent.

Overall good experience with flight and airport wheelchair staff. Also got Indian food in the flights

The flight was good, long obviously but smooth. The seats are pretty small, definitely notice a difference for long haul compared to Emirates or Cathay Pacific it’s more like medium haul seating for space. Food options were good, children’s meals were good for my fussy 3yo.

The flight was delayed over 2 hours. We had to wait on the plane and the air conditioning was turned off. The food was average and the cutlery was wooden!

I was thrilled with the bottle of water, blanket, pillow, earphones, and little packet of toothbrush, toothpaste, earplugs. I was very satisfied with the meals and snacks and drinks. I alao was very grateful to have a seat that backs up against the lavatory, as it made it very easy to get to the bathroom without being jumped in line, as so often happens in the airplane. Of course that was just a random strike of luck, but it really made a difference.

flight delayed, wait in crowded gate. staff inattentive. had to remind them to get my coat from their closet. not many new movies, media choices were limited (nothing compared to Emirates.) Lounge was crowded

Old plane nothing worked no charging facilities for phones etc

New month and no new movies. Qantas has lost the plot

The staff was excellent. They checked on my needs at the appropriate amount, letting me sleep when I needed, checking up when I was awake.

Maybe some more information as to why the flight got delayed I understand may be tell your customers that missiles were fired at a specific airport wouldn't be reassuring to the customers and would cause mayhem but something like recent events have cause a delay on your flight or smth

I liked the crew, the food and the foot space. I did not like the comfort of the seats.

Very delayed and uncomfortable seats. Nothing written in Urdu for Pakistanis. Tons of Pakistanis use the airline they should ensure the airline is accommodating them properly.

Took a long time for boarding. The flight was comfortable.

Likes: on time departure, new plane Didn’t like:very poor quality food, very limited entertainment.no amenity kit etc.

This flight was a dreamliner so I think the space was ok for the legs, but the option for food was again limited and the crew was same.

The staff was very nice and polite but it was very very hot and no ways to have some fresh air. It would be nice to have more time to sleep since it was a night flight

Ripped off and broken seats in Business class. Seats stink and need to request the staff for additional bedsheets. Crew if very friendly though

It feels like the seat did not have any cushion just plywood. The seats are so compact that I could not even move at all and I am slim. Just imagine someone else. Singapore Air and Emirates are far far better than this. Do not even travel for free. For a 12 hour flight sitting on a plywood is horrible experience and on top of that the person at checking counter at NY was worst and rude. Plus they charge arms and leg for everything. I think they would also start charging for belts and oxygen also soon. First and last time flying with Ethiad.

I chose seating based on me being 6’3 and they changed planes I guess bc I got 2 random Seats that were middle and window and vert cramped and uncomfortable for a long flight….should have been able to get same seating just different aisle maybe especially since we picked them and weren’t random

Liked that our agent at check in changed our seats to allow us to have more space.

I was upgraded to Busines Class from premium economy which was a great surprise. But......the service was not marginally better than premium economy. After the welcome on-board drink, I only saw a flight attendant twice...... when she delivered gluten free meals. In between, during a 8 hour flight, she didn't check back with me to offer water or collect trash. I had to fetch my own! The gluten free food was not good - they gave me the same meal whether I was in premium economy or business class.

My flight out of London was canceled on September 9. We could not get a flight to Italy until 2 days later. That means we would miss my son's wedding. So we had to take a train from Heathrow to central London (14 £ = $18.99). We then had to take the train from London to Paris (612£=$830.24). We had to take a taxi from the Paris train station to the Hotel Sixteen in Paris (€67.5=$78.67). Our hotel in Paris is (€340 = $396.26). Our flight from Paris to Italy was (€442.25=$515). The bills are attached. Sent from Yahoo Mail for iPhoneInline image Inline image Inline image Inline image Inline image Inline image

Boarding was offal, crew and jet old and most things were not working, food was terrible.

Staff was very attentive, from the counter staff to flight attendants. Food was not great.

Delayed departure, even more delayed arrival, 40+ min waiting on runway before going to gate - horrible Also didn’t get a single bottle of water all flight

Bad. After 3 hours on tarmac, flight got cancelled. No assistance whatsoever from BA.

Much better than from Singapore to London, which was awful. London to ORD was business class experience expected. Friendly and helpful flight attendants, decent main course, delicious dessert, comfortable lay flat private seats.

The "new" configuration Club class provides a fantastic experience - a private pod, with great design and plenty of room to spread out. In addition, the cabin service was beyond excellent, and the food was great. Thank you for this sector, BA - it was worth every penny.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Kingston upon Thames
Reading
Crawley
Gatwick
Brighton
Eastbourne
Farnborough
Colchester
Brentford
Dorking
Worthing
Richmond
Uxbridge
Chelmsford
Guildford
Stansted
Canterbury
Hayes
Wembley

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