Title: £621 Cheap Thai Airways International flights from Singapore to London (SIN→LHR) - Expedia.co.uk

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# £621 Cheap Thai Airways International flights from Singapore to London (SIN→LHR)

[View £621 flight on Sat, 12 Sept 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:SIN,to:LHR,departure:12/09/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:620.30&airProductToken=AQphCi4I1I4BEgM0MDQYkmogwVIoqciXAzC1yZcDOFZAAFgBagVFQ09TVHIGVkxPU1ROCi8I1I4BEgM5MTAYwVIg64kBKMnOlwMwt9SXAzhWQAFYAWoFRUNPU1RyBlZMT1NUThIKCAEQARgBKgJURxgBIgQIARABKAIoAygEMAE6JDkxNGNkYWQyLWQ2MGMtNGZiMC1iNzljLWUzZWRiNDFhZTRhNw) 

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## Thai Airways International flights from Singapore to London (SIN→LHR)

Prices were available within the past 7 days and start at £621 for one-way flights and £1,228 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All deals

One way

Return

![Thai Airways International](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TG.gif)

Tue, 21 Jul - Wed, 12 Aug

SIN

Singapore

LHR

London

£1,228

Return

found 4 hours ago

[](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:SIN,to:LHR,departure:21/07/2026TANYT&leg2=from:LHR,to:SIN,departure:12/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1227.49&airProductToken=AQpnCjEI1I4BEgM0MDgYkmogwVIo5_aSAzDz95IDOFZAAFgBaghFQ09TVEFORHIGVkxSU1ROCjII1I4BEgM5MTAYwVIg64kBKKn6kgMwl4CTAzhWQAFYAWoIRUNPU1RBTkRyBlZMUlNUTgpnCjII1I4BEgM5MTcY64kBIMFSKInzlAMwwPiUAzhWQABYAWoIRUNPU1RBTkRyBlZMUlNUTgoxCNSOARIDNDA5GMFSIJJqKJX5lAMwnPqUAzhWQAFYAWoIRUNPU1RBTkRyBlZMUlNUThIKCAEQARgBKgJURxgBIgQIARABKAIoBCgGMAE)

## Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

[](https://www.expedia.co.uk/Flights-Search?leg1=from:SIN,to:LGW,departure:19/04/2026TANYT&leg2=from:LGW,to:SIN,departure:26/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE)

LGW

Gatwick

52 min

[Flights from £970

](https://www.expedia.co.uk/Flights-Search?leg1=from:SIN,to:LGW,departure:19/04/2026TANYT&leg2=from:LGW,to:SIN,departure:26/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 

## Find the cheapest month to fly from Singapore (SIN) to London (LHR)

### March is typically the cheapest month to fly

From £495 - £743 per traveller.

## Travel information

| Origin airport      | Changi                                                                                                                                                                                                                                                                                                                  |
| ------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Destination airport | Heathrow                                                                                                                                                                                                                                                                                                                |
| Airlines serving    | Air China, Air France, Air India, Asiana Airlines, Austrian Airlines, British Airways, Cathay Pacific, China Southern Airlines, Emirates, Etihad Airways, Finnair, IndiGo, Japan Airlines, Korean Air, Lufthansa, Malaysia Airlines, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Turkish Airlines |
| Popular airline     | Emirates                                                                                                                                                                                                                                                                                                                |
| Distance            | 10817 km                                                                                                                                                                                                                                                                                                                |
| Average flight time | 7 hours 1 min                                                                                                                                                                                                                                                                                                           |

\*Available to Expedia members.