Title: £346 Flights from London Heathrow to San Juan (LHR to SJU) - Expedia.co.uk ![Condado Beach which includes general coastal views and a coastal town](https://images.trvl-media.com/place/6082351/ae98bc8e-4169-4654-a33a-bab2e7b17b7e.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/6082351/ae98bc8e-4169-4654-a33a-bab2e7b17b7e.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £346 Cheap Flights from London (LHR) to San Juan (SJU) [View £346 flight on Tue, 3 Feb 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LHR,to:SJU,departure:03/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:345.82&airProductToken=AQpdCiwIwmwSAjIwGOuJASCpUSjklYQDMOSZhAM4TEAAWAFqAkROcghQTDVMQVhMMQotCMJsEgM4MDMYqVEgsqIBKLWchAMwqZ6EAzhMQAFYAWoCRE5yCFBJN0FVRUwxEgoIARABGAEqAkI2GAEiBAgBEAEoAigEKAYwAQ) - [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 Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Heathrow Airport (LHR) to Luis Munoz Marin Intl. Airport (SJU) - ![JetBlue Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:lhr,to:sju,departure:16/11/2025TANYT&leg2=from:sju,to:lhr,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![British Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:lhr,to:sju,departure:16/11/2025TANYT&leg2=from:sju,to:lhr,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![Avianca](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AV.svg) Avianca [](https://www.expedia.co.uk/Flights-Search?leg1=from:lhr,to:sju,departure:16/11/2025TANYT&leg2=from:sju,to:lhr,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AV"}}]) - ![Iberia](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_IB.svg) Iberia [](https://www.expedia.co.uk/Flights-Search?leg1=from:lhr,to:sju,departure:16/11/2025TANYT&leg2=from:sju,to:lhr,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"IB"}}]) - ![Virgin Atlantic](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_VS.svg) Virgin Atlantic [](https://www.expedia.co.uk/Flights-Search?leg1=from:lhr,to:sju,departure:16/11/2025TANYT&leg2=from:sju,to:lhr,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"VS"}}]) - ![Air France](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AF.svg) Air France [](https://www.expedia.co.uk/Flights-Search?leg1=from:lhr,to:sju,departure:16/11/2025TANYT&leg2=from:sju,to:lhr,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AF"}}]) - ![KLM](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KL.svg) KLM [](https://www.expedia.co.uk/Flights-Search?leg1=from:lhr,to:sju,departure:16/11/2025TANYT&leg2=from:sju,to:lhr,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) - ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Cheap Flights from London (LHR) to San Juan (SJU) Prices were available within the past 7 days and start at £346 for one-way flights and £510 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Mon, 19 Jan - Wed, 28 Jan LHR London SJU San Juan £510 Return just found [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SJU,departure:19/01/2026TANYT&leg2=from:SJU,to:LHR,departure:28/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:509.52&airProductToken=AQphCi8IwmwSBDE2MjEY64kBIMGTASjQ64IDMKzvggM4TEAAWAFqAkROcghVTDUzQVhMMQouCMJsEgM1NjEYwZMBILKiASiQ84IDMIL1ggM4TEABWAFqAkROcghVTDUzQVhMMQpcCi0IwmwSAzkwNBiyogEgqVEo09ODAzDJ1YMDOExAAFgBagJETnIIVUw1M0FYTDEKKwjCbBIBNxipUSDriQEo4tiDAzCa3IMDOExAAVgBagJETnIIVUw1M0FYTDESCggBEAEYASoCQjYYASIECAEQASgCKAQoBjAB) ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Mon, 24 Nov - Wed, 10 Dec LHR London SJU San Juan £517 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SJU,departure:24/11/2025TANYT&leg2=from:SJU,to:LHR,departure:10/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:516.32&airProductToken=AQpBCh4IwmwSAjIwGOuJASCpUSiE9_0CMIP7_QI4TEAAWAEKHwjCbBIDNzAzGKlRILKiASjA_P0CMK7-_QI4TEABWAEKRQogCMJsEgM4NjIYsqIBIMGTASjFrf8CMMKv_wI4TEAAWAEKIQjCbBIEMTYyMBjBkwEg64kBKMyw_wIw37P_AjhMQAFYARIKCAEQARgBKgJCNhgBIgQIARABKAQwAQ) ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Mon, 24 Nov - Tue, 9 Dec LHR London SJU San Juan £517 Return found 1 hour ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SJU,departure:24/11/2025TANYT&leg2=from:SJU,to:LHR,departure:09/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:516.52&airProductToken=AQpdCiwIwmwSAjIwGOuJASCpUSiE9_0CMIP7_QI4TEAAWAFqAkROcghVTDQ2RVhMMQotCMJsEgM4MDMYqVEgsqIBKLf9_QIwpf_9AjhMQAFYAWoCRE5yCFVMNDZFWEwxCmAKLgjCbBIEMjAwNBiyogEgqVEoq57_AjCfoP8COExAAFgBagJETnIIVUw0NkVYTDEKLgjCbBIEMTEwNxipUSDriQEo8KD_AjCUpP8COExAAVgBagJETnIIVUw0NkVYTDESCggBEAEYASoCQjYYASIECAEQASgCKAQoBjAB) ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Tue, 3 Feb - Sun, 1 Mar LHR London SJU San Juan £522 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SJU,departure:03/02/2026TANYT&leg2=from:SJU,to:LHR,departure:01/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:521.12&airProductToken=AQpfCi4IwmwSBDIyMjAY64kBIKlRKL2ThAMwspeEAzhVQABYAWoCQU5yCFVMMDZNVlk1Ci0IwmwSAzUwMxipUSCyogEog5mEAzDxmoQDOFVAAVgBagJBTnIIVUwwNk1WWTUKYAouCMJsEgQyMTA0GLKiASCpUSiYuYYDMJK7hgM4VUAAWAFqAkFOcghVTDA2TVZZNQouCMJsEgQxMTA3GKlRIOuJASiLxoYDML3JhgM4VUABWAFqAkFOcghVTDA2TVZZNRIKCAgQAhgCKgJCNhgBIgQIARABKAcoAygEMAE) ![avianca](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/av.gif) Tue, 3 Feb - Sat, 14 Feb LHR London SJU San Juan £574 Return just found [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SJU,departure:03/02/2026TANYT&leg2=from:SJU,to:LHR,departure:14/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:573.22&airProductToken=AQpmCjEIwawBEgMxMjEY64kBIMEzKJSahAMwrZ-EAzhTQABYAWoFTElHSFRyCFNaQUIxQlI5CjEIwawBEgMyNTgYwTMgsqIBKOejhAMwkaWEAzhTQAFYAWoFTElHSFRyCFNaQUIxQlI5CmYKMQjBrAESAzI1ORiyogEgwTMoppaFAzDQl4UDOFNAAFgBagVMSUdIVHIIU1pBQjFCUjkKMQjBrAESAzEyMBjBMyDriQEoiZmFAzDrnYUDOFNAAVgBagVMSUdIVHIIU1pBQjFCUjkSCggBEAEYASoCQVYYASIECAEQASgCKAMoBDAB) ![TAP Portugal](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TP.gif) Mon, 26 Jan - Sat, 7 Feb LHR London SJU San Juan £646 Return found 1 hour ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SJU,departure:26/01/2026TANYT&leg2=from:SJU,to:LHR,departure:07/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:645.52&airProductToken=AQqyAQo2CNSgARIEMTM2MxjriQEgi5IBKOi4gwMwjbqDAzhUQABYAWoIRElTQ09VTlRyCFRMMERTSTgxCjUI1KABEgMyMDEYi5IBIMSNASjVu4MDMM6_gwM4VEABWAFqCERJU0NPVU5UcghUTDBEU0k4MQpBCNSgARIENDUzMxjEjQEgsqIBKKrBgwMwoMODAzhUQAFYAWoIRElTQ09VTlRyCFRMMERTSTgxegkIwmwSBDQ1MzMKsgEKQQjUoAESBDQ0NTgYsqIBIMGTASjnwYQDMOLDhAM4VEAAWAFqCERJU0NPVU5UcghUTDBEU0k4MXoJCMJsEgQ0NDU4CjUI1KABEgMyMTgYwZMBIIuSASjpx4QDMO_KhAM4VEABWAFqCERJU0NPVU5UcghUTDBEU0k4MQo2CNSgARIEMTM1NBiLkgEg64kBKKPMhAMwzc2EAzhUQAFYAWoIRElTQ09VTlRyCFRMMERTSTgxEgoIARABGAEqAlRQGAEiBAgBEAEoAigDKAQwAQ) ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Sun, 22 Mar - Fri, 17 Apr LHR London SJU San Juan £711 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SJU,departure:22/03/2026TANYT&leg2=from:SJU,to:LHR,departure:17/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:710.12&airProductToken=AQqvAQo0CMaSARIDNDUxGOuJASCKKSi_pogDMIKoiAM4T0AAWAFqCFNUQU5EQVJEcghPSjJRT0FFQwo0CMaSARIDNjMxGIopIMGTASjcqIgDMLqriAM4T0ABWAFqCFNUQU5EQVJEcghPSjJRT0FFQwpBCMaSARIENzk1NRjBkwEgsqIBKNiwiAMwyLKIAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDegkIwmwSBDc5NTUKrQEKQAjGkgESBDc5NzMYsqIBIKlRKO_MigMw4s6KAzhPQABYAWoIU1RBTkRBUkRyCE9KMlFPQUVDegkIwmwSBDc5NzMKMwjGkgESAzYxNBipUSCKKSjZ0IoDMLfTigM4T0ABWAFqCFNUQU5EQVJEcghPSjJRT0FFQwo0CMaSARIDNDUwGIopIOuJASiM1IoDMM_VigM4T0ABWAFqCFNUQU5EQVJEcghPSjJRT0FFQxIKCAEQARgBKgJGSRgBIgQIARABKAIoAygEMAE) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Wed, 21 Jan - Wed, 4 Feb LHR London SJU San Juan £886 Return found 6 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SJU,departure:21/01/2026TANYT&leg2=from:SJU,to:LHR,departure:04/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:885.22&airProductToken=AQpqCjMIwoIBEgQ3MDUzGOuJASCMGCiLgoMDMJyDgwM4T0AAWAFqBU5PQkFHcglPTFg4QzFCNFAKMwjCggESBDQyNDkYjBggsqIBKNqEgwMw-4iDAzhPQAFYAWoFTk9CQUdyCU9MWDhDMUI0UApoCjMIwoIBEgQ1NjU3GLKiASDvWSj0o4QDMPOlhAM4T0AAWAFqBU5PQkFHcglPTFg4QzFCNFAKMQjCggESAjY2GO9ZIOuJASinpoQDMMuphAM4T0ABWAFqBU5PQkFHcglPTFg4QzFCNFASCggBEAEYASoCQkEYASIECAEQASgCKAMwDQ) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Wed, 4 Mar - Thu, 12 Mar LHR London SJU San Juan £888 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SJU,departure:04/03/2026TANYT&leg2=from:SJU,to:LHR,departure:12/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:887.02&airProductToken=AQqkAQo0CMyQARIDOTAxGOuJASClBCja2oYDMLnbhgM4S0AAWAFqCEVDT0xJR0hUcghLTFU1RFhCUQo0CMyQARIDNDAyGKUEIMSNASiO3IYDMIzghgM4S0ABWAFqCEVDT0xJR0hUcghLTFU1RFhCUQo2CMyQARIENzc4MBjEjQEgsqIBKOXhhgMw1OOGAzhLQAFYAWoIRUNPTElHSFRyCEtMVTVEWEJRCnAKNgjMkAESBDc3NzkYsqIBIMSNASimuIcDMKu6hwM4S0AAWAFqCEVDT0xJR0hUcghLTFU1RFhCUQo2CMyQARIENzc2OBjEjQEg64kBKIS7hwMwvL6HAzhLQAFYAWoIRUNPTElHSFRyCEtMVTVEWEJREgoIAhABGAIqAkxIGAEiBAgBEAEoAigDKAQwCw) ![Aer Lingus](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/EI.gif) Mon, 12 Jan - Fri, 23 Jan LHR London SJU San Juan £897 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SJU,departure:12/01/2026TANYT&leg2=from:SJU,to:LHR,departure:23/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:896.27&airProductToken=AQqRAQoqCMWSARIDMzgxGOuJASCyayiYnYIDMPKdggM4QUAAWAFyCEFVSzIzR0RTCioIxZIBEgMxMzUYsmsgwZMBKLWfggMw3qKCAzhPQAFYAXIIT0xON0M4TTQKNwjFkgESBDUyODYYwZMBILKiASiwpIIDMKKmggM4T0ABWAFyCE9MTjdDOE00egkIwmwSBDUyODYKkQEKNwjFkgESBDUyODkYsqIBIMGTASjYnIMDMNWegwM4T0AAWAFyCE9MTjdDOE00egkIwmwSBDUyODkKKgjFkgESAzEzNBjBkwEgsmso2Z-DAzC8ooMDOE9AAVgBcghPTE43QzhNNAoqCMWSARIDMzgwGLJrIOuJASiWo4MDMOujgwM4QUABWAFyCEFVSzIzR0RTEgoIARABGAEqAkVJGAEiBAgBEAEoAigDKAQwAQ) ## Find the cheapest month to fly from London (LHR) to San Juan (SJU) ### March is typically the cheapest month to fly From £412 - £775 per traveller. ## Alternative airports near San Juan Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.co.uk/Flights-Search?leg1=from:LHR,to:SJU,departure:16/11/2025TANYT&leg2=from:SJU,to:LHR,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) SJU Luis Munoz Marin Intl. Cheapest 16 min [Flights from £563](https://www.expedia.co.uk/Flights-Search?leg1=from:LHR,to:SJU,departure:16/11/2025TANYT&leg2=from:SJU,to:LHR,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Frequently asked questions ### How much is a flight from LHR to Isla Verde Intl. Airport? > Based on fares offered within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from London Heathrow to Luis Munoz Marin Intl. Airport (SJU) start from £510. Make your booking today to secure the best price for your journey. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from LHR to Luis Munoz Marin Intl. Airport (SJU)? > Most flights can be cancelled online, but every airline has its own set of terms and conditions. If you do need to cancel your flight, visit our [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033) and follow the instructions. ### How do I find cheap flights from Heathrow Airport (LHR) to SJU that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for LHR to Isla Verde Intl. Airport flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from LHR to Luis Munoz Marin Intl. Airport (SJU)? > The distance is around 6,700 kilometres, so fill your carry-on bag with everything you need to make your journey comfortable. Wondering what to take on board your Hounslow to Carolina flight? A neck pillow, earplugs and a sleep mask are among the essentials. ### Which airlines fly direct from Heathrow Airport (LHR) to SJU? > If you want to fly straight from Heathrow Airport to Luis Munoz Marin Intl. Airport (SJU), you'll have to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly on this route. ### Are LHR to Isla Verde Intl. Airport flight tickets cheaper when they're purchased at the last minute? > Booking last minute from Heathrow Airport to Luis Munoz Marin Intl. Airport (SJU) can be hit-or-miss. You may be able to find a bargain, but then again, you could miss out altogether! If you'd rather play it safe and start planning early on, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines release their prices that far in advance. Our top tip? Check back often as updates are made regularly. ## Travel information | Origin airport | Heathrow | | --- | --- | | Destination airport | Luis Munoz Marin Intl. | | Airlines serving | Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, LOT-Polish Airlines, Lufthansa, TAP Portugal, Turkish Airlines, United, Virgin Atlantic, avianca | | Return price | £510 | | Distance | 6691 km | ## Book with confidence ### Compare flights from London to San Juan easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to San Juan. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Luis Munoz Marin Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Luis Munoz Marin Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Heathrow (LHR) to Luis Munoz Marin Intl. (SJU) The easiest way to view the best deals on flights from London to San Juan today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Heathrow to Luis Munoz Marin Intl. start at just £510 and range up to £897.   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near London and San Juan - booking your flight during January, the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your London to San Juan flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Luis Munoz Marin Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Explore a world of travel with Expedia - Accommodation - Flights - Packages - Cars - Holiday Homes - Other - [1 Star Hotels in Old San Juan](https://www.expedia.co.uk/1Star-Old-San-Juan-San-Juan-Hotels.s10-n553248633981709498-0.Travel-Guide-Filter-Hotels) - [5 Star Hotels in San Juan](https://www.expedia.co.uk/5Star-San-Juan-Hotels.s50-0-d3179.Travel-Guide-Filter-Hotels) - [5 Star Hotels in San Juan](https://www.expedia.co.uk/5Star-San-Juan-Hotels.s50-0-d553248635209644367.Travel-Guide-Filter-Hotels) - [Hotels near Balneario de Carolina](https://www.expedia.co.uk/Balneario-De-Carolina-Hotels.0-l553248635930543146-0.Travel-Guide-Filter-Hotels) - [Gay-Friendly Hotels in Cacao](https://www.expedia.co.uk/Cacao-Hotels-Gay-Friendly-Hotel.0-0-d553248635976173546-tGayFriendlyHotel.Travel-Guide-Filter-Hotels) - [Cangrejo Arriba Hotels](https://www.expedia.co.uk/Cangrejo-Arriba-San-Juan-Hotels.0-n553248635976173777-0.Travel-Guide-Filter-Hotels) - 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