S$ 420 Find Cheap Flights to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 15-3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results for flights to London
These are the airlines KAYAK users have selected most often from within our search results for flights to London
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Everything you should know

Cheapest return fare
S$ 840
Overall average: S$ 1,089
Etihad Airways
Mon 15-6Wed 24-6
SIN - LHR • 1 stop
Cheapest direct flights
S$ 943
Typical prices: S$ 992-S$ 1,267
British Airways
Sun 10-5Wed 27-5
SIN - LHR • Direct
Top airlines
Singapore Airlines
Most flights • 35 per week
Singapore Airlines
Best reviews • 8.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 9% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to London

Mon, 15 Jun - Wed, 24 Jun
Etihad Airways Logo
21:00 - 15:05
SIN
-
LHR
25h 05m
1 stop
Etihad Airways Logo
14:45 - 09:40
LHR
-
SIN
35h 55m
1 stop
S$ 840Etihad Airways
Mon, 16 Feb - Mon, 23 Feb
Turkish Airlines Logo
11:40 - 16:10
SIN
-
LGW
36h 30m
1 stop
Turkish Airlines Logo
17:05 - 10:00
LGW
-
SIN
32h 55m
1 stop
S$ 840Turkish Airlines
Sun, 1 Mar - Sun, 15 Mar
Multiple Airlines Logo
20:00 - 16:10
SIN
-
STN
28h 10m
2 stops
Multiple Airlines Logo
18:15 - 03:20
STN
-
SIN
25h 05m
1 stop
S$ 840Multiple Airlines
Tue, 10 Feb - Mon, 16 Feb
Hainan Airlines Logo
04:40 - 16:20
SIN
-
LHR
19h 40m
1 stop
Hainan Airlines Logo
21:00 - 03:10
LHR
-
SIN
22h 10m
2 stops
S$ 847Hainan Airlines
Tue, 17 Feb - Fri, 20 Feb
Gulf Air Logo
20:00 - 06:35
SIN
-
LHR
18h 35m
1 stop
Gulf Air Logo
09:30 - 12:50
LHR
-
SIN
19h 20m
1 stop
S$ 851Gulf Air
Tue, 10 Mar - Fri, 13 Mar
Gulf Air Logo
20:00 - 06:30
SIN
-
LGW
18h 30m
1 stop
Gulf Air Logo
10:35 - 12:50
LGW
-
SIN
18h 15m
1 stop
S$ 853Gulf Air
Mon, 13 Jul - Mon, 9 Nov
Lufthansa Logo
23:40 - 08:40
SIN
-
LCY
16h 00m
1 stop
Lufthansa Logo
18:15 - 16:55
LCY
-
SIN
14h 40m
1 stop
S$ 1,017Lufthansa
Mon, 8 Jun - Tue, 10 Nov
Lufthansa Logo
23:40 - 08:40
SIN
-
LCY
16h 00m
1 stop
Lufthansa Logo
18:15 - 16:55
LCY
-
SIN
14h 40m
1 stop
S$ 1,058Lufthansa
Tue, 10 Mar - Wed, 18 Mar
SWISS Logo
00:05 - 08:45
SIN
-
LCY
16h 40m
1 stop
SWISS Logo
19:10 - 18:00
LCY
-
SIN
14h 50m
1 stop
S$ 1,065SWISS
Mon, 16 Mar - Mon, 23 Mar
SWISS Logo
00:05 - 08:40
SIN
-
LCY
16h 35m
1 stop
SWISS Logo
19:10 - 18:00
LCY
-
SIN
14h 50m
1 stop
S$ 1,108SWISS
Booking Insights

KAYAK's insights & trends for flights to London

Get data-powered insights and trends into flights to London to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to London is March, where tickets cost S$ 951 on average for one-way flights. On the other hand, the most expensive months are July and December, where the average cost of tickets from Singapore is S$ 1,234 and S$ 1,221 respectively. For return trips, the best month to travel is March with an average price of S$ 951.

What is a good deal for flights to London?

If you’re looking for cheap airfare to London, 25% of our users found tickets to London for the following prices or less: From Singapore S$ 971 one-way - S$ 1,018 return.

How far in advance should I book a flight to London?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to London, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 73 days before departure.

Which is the cheapest airport to fly into in London?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in London is London Luton Airport, with an average flight price of S$ 88.

Good to know – Book Cheap London Plane Tickets

Low seasonJanuary
Cheapest flightS$ 420
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (18% more expensive on average)
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to London based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking London flights

  • Which London airport is closest to central London?

    There are 6 airports in London. The closest airport to London’s city centre is London City (12 km). London Heathrow Airport, London Gatwick Airport, and London Luton Airport are 23 km, 38 km, and 45 km from the centre of London, respectively.

  • How much is a flight to London?

    On average, a flight to London costs S$ 1,149. The cheapest price found on KAYAK in the last 2 weeks cost S$ 728 and departed from Singapore Changi Airport.

  • What is the cheapest day to fly to London?

    Based on KAYAK data, the cheapest day to fly to London is Tuesday where tickets can be as cheap as S$ 1,127. On the other hand, the most expensive day to fly is Saturday, where prices are S$ 1,266 on average.

  • How does KAYAK find such low prices on flights to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

    The cheapest time of day to fly to London is generally in the morning, when flights cost S$ 1,192 on average. The most expensive time of day to fly to London is generally at night, which is peak travel time and where the average cost of a ticket is S$ 1,212.

Top tips for finding cheap flights to London

  • Looking for a cheap flight? 25% of our users found flights on this route for S$ 971 or less one-way and S$ 1,018 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London flight deals.

Reviews of the top 5 airlines flying to London

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Singapore to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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 1443 reviews
8.3Boarding
7.8Food
8.0Comfort
8.0Entertainment
8.6Crew
Airline reviews

First time flying with Singapore airlines and I’ll give them two thumbs up 👍 👍

10.0 ExcellentSuzanne, Jan 2026
SIN - SGN
Read more Singapore Airlines reviews

First time flying with Singapore airlines and I’ll give them two thumbs up 👍 👍

I find it was a bit hot before take off. If there is a way to improve the airflow it would be great

Excellent service. I pre-ordered gluten intolerant meal and they handle it with care. They served me my meal before other people's to avoid crossed contamination. Thank you 🙏

No frills airline with minimal leg room and no entertainment

The flight arrived on time. 2×2 seating meant no one needed to sit in the middle. This was a connectibf flight from Singapore and required going to 3 counters in different levels to check a golf bag

Food was just okay, need to improve for other menu variations

The consistency with Singapore Airlines is fantastic. Crew are always brilliant and food delicious in business class

Wish the seat don’t have restrictions, can’t fully insert backpack all the way inside.

Service was top notch and the attention to passengers is great. Takeoff and landing was on schedule. Food selection is good

I have difficulties to book wheelchair for my parents returned flight

Milan airport was bad experience. They should be more polite.

Great flight - Clubhouse met our needs, and the staff provided good service. Boarding felt a little chaotic, but given the size of the aircraft, it's always going to be challenging. Whilst the crew were friendly, the number of passengers meant that we received our breakfast items, but had finished breakfast before we were served a drink. Lunch was much better organised, and throughout the flight, the crew were attentive. Found the seats and ICE to be excellent. Disembarkation was fine, and everything possible to expedite the process was being done.

We boarded but due to a technical issue we spent 4.5hrs on the ground waiting for the issue to be resolved

I take emirates because of direct flights Otherwise no Cabin crew niot friendly and never friendly across the airlines Planes old inside not renewd .. this is not an issue The issue is the poor service

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.

Hospitality is good. Should improve on buggage handling because l lost a suitcase. Layover in Dubai was too long , 6 hours

Can’t complain Only downside was the Kiosk passport check and customs clearance at Melbourne. When will they improve that service🤔

Similar to Hyd->Dubai this too was worst airlines. Bad seats, bad seating arrangement which created lot of confusion since family member were not given seat together. However most of them changed the seat and got with the family. Cheap tactics by Emirates.

They should resume the fast track for business / first class passengers

Flight was delayed by and hour but were informed beforehand

Hard to move and get out of my seat when the passenger in front is in recline position.

Couldn't access entertainment on app as said in an email

Excellent as always, I won't fly to Australia, and back to the US on any other airline. The flight crew is always top notch, and have a way to make one feel extra special. Thank you for your service, I would rate Qantas Airways a 10+.

No internet on flight, which makes log travels really hard.

they ran out of fruit for breakfast and so I just had a yogurt instead. other than that the flight was good

One of the best Qantas business flights I've had. Quality product

Great as usual, some delays but well communicated and made up for in the air

We were upgraded and after just a short delay in attending to a safety check we were on our way. Would definately fly Qantas International on their Dreamliner again.

Five hour flight instead of four hours due to westerly headwinds which wasn’t the fault of Qantas !

I tried to check in online but was unable to do so. I stood in line for nearly two hours to check in. American Airlines was understaffed. When I finally got to the kiosk to check in, I was still unable to check in. No AA staff was available to help. Finally one of the airport security agents who was helping passengers became of lack of AA Staff told me: “I think the reason you can’t check in is that you are starting your name with an upper case letter when you write it. Just write it with all lower case letters.” That did allow me to check in. HOW COULD ANYONE POSSIBLY KNOW THAT IF THEY USE AN INITIAL UPPER CASE LETTER TO SPELL THEIR OWN NAME, AA WOULD NOT ALLOW THEM TO CHECK IN?????? Then I had to wait in line over half an hour again to drop off my baggage. Although I arrived at the airport 3 hours early, by the time I got to the gate, they had already started boarding.

Pretty much what you'd expect for an economy flight. The crew were excellent as usual. The food was ok, but nothing special.

Staff is rude and condescending. Airline is badly managed. They take away their flimsy earphones and blankets one hour before the lading. I’ve never experienced this with any other airline. It’s a very portly managed and run airline that should be avoided.

The Senior Flight attendant was just amazing on our Flight GF 284 on 30/11/25. She was so attentive, helpful and caring not just to us but to all in our cabin.

Loading was on time and quick Not very many people

Amazing business class in a single aisle plane. Fully flat seats, pyjamas, amenity kits, all in all a really complete product. Service was good - not amazing - but they did a good job. Got a few hours sleep. Will fly with them again if I can.

They flight was without ait conetion weather was very hot

Did not have to leave plane. However found the wait tiring with nearly a full plane boarding at Male and being unable to get out of seat due to cleaners security and a full plane boarding with hand luggage. Staff were excellent despite a long and tiring flight due to stopover.

Everything about our return trip from Colombo to Manchester was excellent. Staff were brilliant all flights. Return flights on time and all staff were brilliant. The outbound journey however was marred by cancellation of Man to Bahrain flight. No information or staff assistance. Customer Service none existent. Told to make own arrangements by none interested or understanding telephone staff who said to make own hotel arrangements and be reimbursed. CS refused to reimburse hotel or lost lounge booking or taxi fees.

The boarding was late. The check-in board said boarding closed but the boarding hadn't even started. I have spine issue but not eligible for wheelchair since I can walk. But we were taken to a plane with stairs to climb. I requested support with the handcarry and was told that I shouldn't have booked this flight without wheelchair. Instead this information should be public if this plane has sky bridge or stairs. The infotainment system did not work either. And the plane was very loud with very less legroom in economy.

Very poor experience, passengers and were not social and started a troubled with other passengers and a fight erupted

This review if for American Airlines. From London to LA, British Airways customers flew American Airlines and there was a small incident on the plane with a customer that was sitting next to me. She had a gluten free meal which she selected online. The flight attendant brought her food and both times, it contained gluten (bread, cracker) and by the second time, the customer mentioned about the issue to the flight attendant because she is highly allergic to gluten. Customer was very gentle and just wanted to note that both her meals contained gluten on the tray. The whole situation could have ended really well if flight attendant just apologized and mentioned she would relay the message to the responsible party. Instead, she entered defensive mode and started making some BS excuse about how the cracker that was supposed to be mine, fell onto her tray instead. Mind me, I already had that cracker on my tray. I doubt I would be given two. Also, she mentioned that the bread from the previous meal was gluten free. REALLY? I ate that bread and it tasted like it had PLENTY of gluten. The whole situation was handled so poorly, not only by that one flight attendant, but by 2 others. The reason I intervened is because the customer sitting next to me was tearing and all she did was mention the mistake which could have cause her health great damage, and instead she received attacks and excuses. AA, you should train your employees how to better handle situations like this. A 'well, I don't see why this problem is a big deal since you (the customer with allergies) read the ingredients and avoided eating the cracker that "accidentally fell" from the tray of the customer sitting next to you,' should not have been coming out of a flight attendant's mouth.

Continue to be disappointed that the “food” for “ordinary” fare paying passengers is poor - on this flight it consisted of a packet of two biscuits and a small bottle of water … not even offered a “free” cup of tea or coffee. Suggest a review of the “menu” and offer a hot drink to ordinary (economy class) passengers. On this route there are many far cheaper flights available - paying almost £200 for a flight that could have been bought for less than half this price should have some “perks” - offering hot drinks to all passengers would, in my opinion, be a cost effective measure which would improve the image of British Airways.

Aircraft was comfortable even in economy, clean. Entertainment screens were excellent and. Hoice was very good. Good was just ok. Crew was not bad.

Entertainment system didn't work well. Also no new movies and limited choice of other programmes. . And only one USB A charger option. Most modern electronic items needs USB C. Planes should offer both

I was unable to board the flight because I was unable to acquire a visa , Brexit changed my ability to get an ETA, I’m a Trinidad citizen and it takes weeks to get a visa

The issue was not with BA it was with the link yoiu sent fopr booking the flight

The space in the seat was okay, the staff were friendly, the entertainment system, my touch screen was not working and some of the films listed on the website for the flight were not available.

BA flight from London NY had old BC configuration with 2+3+2 seating with open seats which was not comfortable and lacked privacy

Flew business- but plane was dirty, food horrendous. Too many business class seats diluted service levels overall.

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Crawley
Hounslow
Eastbourne
Reading
Guildford
Hayes
Brighton
Slough
Ilford
Dorking
Worthing
Stansted
Gatwick
Croydon
Richmond
Wembley
Basingstoke
Dartford
Milton Keynes
Dover

Everything you need to know for your flight to London

Cabin class types available on flights to London

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.