Title: £532 Cheap KLM flights from London to Bangkok (LHR→BKK) - Expedia.co.uk ![](https://images.trvl-media.com/place/178236/e400a3ad-f453-448a-ae4a-00d55dc3e175.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178236/e400a3ad-f453-448a-ae4a-00d55dc3e175.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £532 Cheap KLM flights from London to Bangkok (LHR→BKK) [View £532 flight on Thu, 26 Mar 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LHR,to:BKK,departure:26/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:531.02&airProductToken=AQpoCjMIy5gBEgQxMDA2GOuJASCAkwEoodOIAzDx04gDOExAAFgBagVMSUdIVHIIVFJMRkJCTEEKMQjLmAESAzg0MxiAkwEgwVIooNWIAzC52ogDOFRAAVgBagVMSUdIVHIIVFJMRkJCTEESCggBEAEYASoCS0wYASIECAEQASgCKAMoBDAN) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Add a place to stay Direct flights only - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 25% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## KLM flights from London to Bangkok (LHR→BKK) Prices were available within the past 7 days and start at £532 for one-way flights and £511 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Wed, 17 Sept - Mon, 22 Sept LHR London BKK Bangkok £511 Return found 1 hour ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:BKK,departure:17/09/2025TANYT&leg2=from:BKK,to:LHR,departure:22/09/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:510.72&airProductToken=AQpoCjMIy5gBEgQxMDA2GOuJASCAkwEopfn3AjDw-fcCOExAAFgBagVMSUdIVHIIR1JMREk3TEkKMQjLmAESAzg0MxiAkwEgwVIos_v3AjDWgPgCOEdAAVgBagVMSUdIVHIIR1JMREk3TEkKaAoxCMuYARIDODQ0GMFSIICTASjxrvgCMMa0-AI4R0AAWAFqBUxJR0hUcghHUkxESTdMSQozCMuYARIEMTAxNxiAkwEg64kBKJu1-AIw67X4AjhMQAFYAWoFTElHSFRyCEdSTERJN0xJEgoIAhABGAIqAktMGAEiBAgBEAEoAigDKAQwDQ) Flight from London to Bangkok route information | Origin airport | Heathrow | | --- | --- | | Destination airport | Suvarnabhumi Intl. | | Airlines serving | Air China, Air France, Air India, British Airways, Cathay Pacific, China Southern Airlines, EVA Airways, Etihad Airways, Finnair, Gulf Air, KLM, Kuwait Airways, Malaysia Airlines, Oman Air, Qatar Airways, Saudia, Singapore Airlines, SriLankan Airlines, Turkish Airlines, Vietnam Airlines | | Popular airline | British Airways | | Distance | 9520 km | | Average flight time | 17 hours 40 mins | - Trending KLM Flights - Trending Routes - Related Airlines - Nearby Airports - Flights from Other Cities - Expedia's Latest Trends ### Most Popular KLM Routes from London - [KLM LHR to BKK](https://expedia.co.uk/lp/flight-routes/klm-from-heathrow-to-suvarnabhumi-intl/kl/lhr/bkk) - [KLM LHR to MIA](https://expedia.co.uk/lp/flight-routes/klm-from-heathrow-to-miami-intl/kl/lhr/mia) - [KLM LHR to ACC](https://expedia.co.uk/lp/flight-routes/klm-from-heathrow-to-kotoka-intl/kl/lhr/acc) - [KLM LHR to AMS](https://expedia.co.uk/lp/flight-routes/klm-from-heathrow-to-schiphol/kl/lhr/ams) - [KLM LHR to CPT](https://expedia.co.uk/lp/flight-routes/klm-from-heathrow-to-cape-town-intl/kl/lhr/cpt) ### Most Popular KLM Routes from Bangkok - [KLM BKK to BHX](https://expedia.co.uk/lp/flight-routes/klm-from-suvarnabhumi-intl-to-birmingham/kl/bkk/bhx) - [KLM BKK to NCL](https://expedia.co.uk/lp/flight-routes/klm-from-suvarnabhumi-intl-to-newcastle-intl/kl/bkk/ncl) - [London to Seoul (LHR - ICN)](https://expedia.co.uk/lp/flights/lhr/icn/london-to-seoul) - 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