Title: £494 Cheap Flights from London to Missoula (LHR to MSO) - Expedia.co.uk ![](https://images.trvl-media.com/place/180035/8d4f3b71-c132-43dd-a9d7-a6eaa1a1767d.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £494 Cheap Flights from London (LHR) to Missoula (MSO) [View £494 flight on Tue, 9 Dec 2025](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LHR,to:MSO,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:493.52&airProductToken=AQqXAQovCNamARIBORjriQEgqVEo46H_AjC-pf8COFRAAFgBagVMSUdIVHIIT1kyUUJETEEKMQjWpgESBDQ3ODMYqVEg8hIolq__AjDWsf8COFRAAVgBagVMSUdIVHIIT1kyUUJETEEKMQjWpgESBDM3MzkY8hIgzHQombP_AjCItP8COFRAAVgBagVMSUdIVHIIT1kyUUJETEESCggBEAEYASoCVlMYASIECAEQASgCKAMoBDAB) - [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 Missoula Intl. Airport (MSO) - ![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:mso,departure:26/10/2025TANYT&leg2=from:mso,to:lhr,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"VS"}}]) - ![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:mso,departure:26/10/2025TANYT&leg2=from:mso,to:lhr,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![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:mso,departure:26/10/2025TANYT&leg2=from:mso,to:lhr,departure:02/11/2025TANYT&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:mso,departure:26/10/2025TANYT&leg2=from:mso,to:lhr,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:lhr,to:mso,departure:26/10/2025TANYT&leg2=from:mso,to:lhr,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:lhr,to:mso,departure:26/10/2025TANYT&leg2=from:mso,to:lhr,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:lhr,to:mso,departure:26/10/2025TANYT&leg2=from:mso,to:lhr,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) ![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 Missoula (MSO) Prices were available within the past 7 days and start at £494 for one-way flights and £665 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Mon, 2 Feb - Mon, 9 Feb LHR London MSO Missoula £665 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:MSO,departure:02/02/2026TANYT&leg2=from:MSO,to:LHR,departure:09/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:664.82&airProductToken=AQqgAQo0CMaSARIDNDUxGOuJASCKKSi_ioQDMIKMhAM4T0AAWAFqCFNUQU5EQVJEcghPSjJRT0FFQwozCMaSARIDNjgxGIopIJIBKNyMhAMwvJCEAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjMIwaYBEgM2NjAYkgEgzHQo8JmEAzDHmoQDOEdAAVgBaghTVEFOREFSRHIIT0oyUU9BRUMKoAEKMwjBpgESAzY2MBjMdCCSASi43oQDMJzfhAM4R0AAWAFqCFNUQU5EQVJEcghPSjJRT0FFQwozCMaSARIDNjgwGJIBIIopKKvphAMw9-yEAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjQIxpIBEgM0NTAYiikg64kBKMfthAMwiu-EAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDEgoIARABGAEqAkZJGAEiBAgBEAEoAigDKAQwAQ) ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Mon, 2 Feb - Mon, 9 Feb LHR London MSO Missoula £667 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:MSO,departure:02/02/2026TANYT&leg2=from:MSO,to:LHR,departure:09/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:666.02&airProductToken=AQqgAQo0CMaSARIDNDU1GOuJASCKKSizjoQDMPuPhAM4T0AAWAFqCFNUQU5EQVJEcghPSjJRT0FFQwozCMaSARIDNjgxGIopIJIBKPyXhAMw3JuEAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjMIwaYBEgMxMzkYkgEgzHQo3J2EAzC2noQDOEdAAVgBaghTVEFOREFSRHIIT0oyUU9BRUMKoAEKMwjBpgESAzY2MBjMdCCSASi43oQDMJzfhAM4R0AAWAFqCFNUQU5EQVJEcghPSjJRT0FFQwozCMaSARIDNjgwGJIBIIopKKvphAMw9-yEAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjQIxpIBEgM0NTAYiikg64kBKMfthAMwiu-EAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDEgoIARABGAEqAkZJGAEiBAgBEAEoAigDKAQwAQ) ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Sun, 11 Jan - Thu, 15 Jan LHR London MSO Missoula £667 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:MSO,departure:11/01/2026TANYT&leg2=from:MSO,to:LHR,departure:15/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:666.52&airProductToken=AQqgAQo0CMaSARIDNDU1GOuJASCKKSjzloIDMLuYggM4T0AAWAFqCFNUQU5EQVJEcghPSjJRT0FFQwozCMaSARIDNjgxGIopIJIBKLygggMwnKSCAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjMIwaYBEgMxMzkYkgEgzHQonKaCAzD2poIDOEdAAVgBaghTVEFOREFSRHIIT0oyUU9BRUMKoAEKMwjBpgESAzEzOBjMdCCSASjDwIIDMLDBggM4R0AAWAFqCFNUQU5EQVJEcghPSjJRT0FFQwozCMaSARIDNjgwGJIBIIopKOvEggMwt8iCAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjQIxpIBEgM0NTAYiikg64kBKIfJggMwysqCAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDEgoIARABGAEqAkZJGAEiBAgBEAEoAigDKAQwAQ) ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Tue, 3 Mar - Tue, 17 Mar LHR London MSO Missoula £694 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:MSO,departure:03/03/2026TANYT&leg2=from:MSO,to:LHR,departure:17/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:693.82&airProductToken=AQqhAQo0CMaSARIDNDUxGOuJASCKKSjf0IYDMKLShgM4T0AAWAFqCFNUQU5EQVJEcghPSjJRT0FFQwozCMaSARIDNjgxGIopIJIBKPzShgMw3NaGAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjQIwaYBEgQyNDc4GJIBIMx0KO_YhgMwwdmGAzhHQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCqEBCjQIwaYBEgQyMTYwGMx0IJIBKP7zhwMw3PSHAzhPQABYAWoIU1RBTkRBUkRyCElKMlFPQUVDCjMIxpIBEgM2ODAYkgEgiikoq_6HAzD3gYgDOElAAVgBaghTVEFOREFSRHIISUoyUU9BRUMKNAjGkgESAzQ1MBiKKSDriQEox4KIAzCKhIgDOElAAVgBaghTVEFOREFSRHIISUoyUU9BRUMSCggBEAEYASoCRkkYASIECAEQASgCKAMoBDAB) ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Fri, 30 Jan - Tue, 3 Feb LHR London MSO Missoula £702 Return found 6 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:MSO,departure:30/01/2026TANYT&leg2=from:MSO,to:LHR,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:701.62&airProductToken=AQqhAQo0CMaSARIDNDUxGOuJASCKKSjf6IMDMKLqgwM4T0AAWAFqCFNUQU5EQVJEcghPSjJRT0FFQwozCMaSARIDNjgxGIopIJIBKPzqgwMw3O6DAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjQIwaYBEgQyMTYwGJIBIMx0KNX2gwMwq_eDAzhHQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCqABCjMIwaYBEgMxMzgYzHQgkgEoo5aEAzCQl4QDOEdAAFgBaghTVEFOREFSRHIIT0oyUU9BRUMKMwjGkgESAzY4MBiSASCKKSjLmoQDMJeehAM4T0ABWAFqCFNUQU5EQVJEcghPSjJRT0FFQwo0CMaSARIDNDU0GIopIOuJASj0ooQDMLKkhAM4T0ABWAFqCFNUQU5EQVJEcghPSjJRT0FFQxIKCAEQARgBKgJGSRgBIgQIARABKAIoAygEMAE) ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Fri, 30 Jan - Tue, 3 Feb LHR London MSO Missoula £703 Return found 6 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:MSO,departure:30/01/2026TANYT&leg2=from:MSO,to:LHR,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:702.82&airProductToken=AQqgAQo0CMaSARIDNDU1GOuJASCKKSjT7IMDMJvugwM4T0AAWAFqCFNUQU5EQVJEcghPSjJRT0FFQwozCMaSARIDNjgxGIopIJIBKJz2gwMw_PmDAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjMIwaYBEgMxMzkYkgEgzHQo_PuDAzDW_IMDOEdAAVgBaghTVEFOREFSRHIIT0oyUU9BRUMKoAEKMwjBpgESAzEzOBjMdCCSASijloQDMJCXhAM4R0AAWAFqCFNUQU5EQVJEcghPSjJRT0FFQwozCMaSARIDNjgwGJIBIIopKMuahAMwl56EAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjQIxpIBEgM0NTAYiikg64kBKOeehAMwqqCEAzhPQAFYAWoIU1RBTkRBUkRyCE9KMlFPQUVDEgoIARABGAEqAkZJGAEiBAgBEAEoAigDKAQwAQ) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, 12 Nov - Wed, 19 Nov LHR London MSO Missoula £715 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:MSO,departure:12/11/2025TANYT&leg2=from:MSO,to:LHR,departure:19/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:714.02&airProductToken=AQpnCjEIwYIBEgIyMRjriQEgo7EBKP3u_AIw6fP8AjhCQABYAWoFQkFTSUNyCE9MWDhDMUI0CjIIwYIBEgQzODM0GKOxASDMdCig9fwCMPr2_AI4QkABWAFqBUJBU0lDcghPTFg4QzFCNAqbAQoyCMGCARIENDE3NBjMdCCjsQEoyb_9AjCawf0COEJAAFgBagVCQVNJQ3IIT0xYOEMxQjQKMgjBggESBDE2NTQYo7EBIKlRKNXB_QIwqMP9AjhCQAFYAWoFQkFTSUNyCE9MWDhDMUI0CjEIwYIBEgMxMDAYqVEg64kBKP3D_QIwnMf9AjhCQAFYAWoFQkFTSUNyCE9MWDhDMUI0EgoIAhABGAIqAkFBGAEiBAgBEAEoAigDKAQwCw) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Wed, 12 Nov - Wed, 19 Nov LHR London MSO Missoula £732 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:MSO,departure:12/11/2025TANYT&leg2=from:MSO,to:LHR,departure:19/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:731.02&airProductToken=AQpsCjMIxJgBEgE5GOuJASDMfCi57_wCMNrz_AI4RUAAWAFqCU1BSU5CQVNJQ3IIVlkyRURCTEEKNQjEmAESBDI2MTAYzHwgzHQorvb8AjDe9_wCOEVAAVgBaglNQUlOQkFTSUNyCFZZMkVEQkxBCm0KNQjEmAESBDI5MDcYzHQgzHwohMD9AjCiwf0COEVAAFgBaglNQUlOQkFTSUNyCFZZMkVEQkxBCjQIxJgBEgIxMBjMfCDriQEo6cP9AjDJx_0COEVAAVgBaglNQUlOQkFTSUNyCFZZMkVEQkxBEgoIARABGAEqAkRMGAEiBAgBEAEoAigDKAQwAQ) ![Virgin Atlantic](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VS.gif) Mon, 10 Nov - Mon, 17 Nov LHR London MSO Missoula £732 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:MSO,departure:10/11/2025TANYT&leg2=from:MSO,to:LHR,departure:17/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:731.02&airProductToken=AQqYAQowCNamARICMjUY64kBIKlRKJDd_AIw6-D8AjhUQABYAWoFTElHSFRyCE9ZMkVERExBCjEI1qYBEgQzMTU0GKlRIMx8KNDk_AIwk-b8AjhUQAFYAWoFTElHSFRyCE9ZMkVERExBCjEI1qYBEgQyNDk2GMx8IMx0KI7r_AIwvuz8AjhUQAFYAWoFTElHSFRyCE9ZMkVERExBCpkBCjEI1qYBEgQzNzM4GMx0IPISKP2r_QIw36z9AjhUQABYAWoFTElHSFRyCE9ZMkVERExBCjEI1qYBEgQxOTEwGPISIJIBKO-t_QIw_679AjhUQAFYAWoFTElHSFRyCE9ZMkVERExBCjEI1qYBEgMxMDYYkgEg64kBKKiv_QIw4rP9AjhUQAFYAWoFTElHSFRyCE9ZMkVERExBEgoIARABGAEqAlZTGAEiBAgBEAEoAigDKAQwAQ) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Sun, 9 Nov - Sun, 16 Nov LHR London MSO Missoula £735 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:MSO,departure:09/11/2025TANYT&leg2=from:MSO,to:LHR,departure:16/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:734.12&airProductToken=AQqeAQoyCMKCARIDMzIyGOuJASDiMCiT0vwCMOPS_AI4T0AAWAFqBkVMSUdIVHIIT0xYOEMxQjQKMwjBsgESBDM3NDkY4jAgo7EBKL3Y_AIwwt38AjhPQAFYAWoGRUxJR0hUcghPTFg4QzFCNAozCMGCARIEMzgzNBijsQEgzHQo4N78AjC64PwCOEJAAVgBagZFTElHSFRyCE9MWDhDMUI0CpwBCjEIwaYBEgQyMjE5GMx0IJIBKIuh_QIw7aH9AjhTQABYAWoFQkFTSUNyCE9MWDhDMUI0CjIIwYIBEgQ3NDMyGJIBIMGTASi_ov0CMICl_QI4T0ABWAFqBUJBU0lDcghPTFg4QzFCNAozCMGCARIENjk4MRjBkwEg64kBKK6o_QIwtKv9AjhPQAFYAWoFQkFTSUNyCE9MWDhDMUI0EgoIAhABGAIqAkFZGAEiBAgBEAEoAigDKAQwAQ) ## Alternative airports near Missoula 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:MSO,departure:26/10/2025TANYT&leg2=from:MSO,to:LHR,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) MSO Missoula Intl. CheapestClosest 8 min [Flights from £836](https://www.expedia.co.uk/Flights-Search?leg1=from:LHR,to:MSO,departure:26/10/2025TANYT&leg2=from:MSO,to:LHR,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) Flight from London to Missoula route information | Origin airport | Heathrow | | --- | --- | | Destination airport | Missoula Intl. | | Airlines serving | Air France, American Airlines, British Airways, Delta, KLM, United, Virgin Atlantic | | Return price | £665 | | Distance | 7336 km | ## Compare flights from London to Missoula easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Missoula. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Missoula Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Missoula 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 Missoula Intl. (MSO) The easiest way to view the best deals on flights from London to Missoula 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 Missoula Intl. start at just £665 and range up to £735.   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near London and Missoula - booking your flight during February, 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 Missoula flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Missoula 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. 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