Title: £414 Cheap Flights from Rome to Las Vegas (FCO to LAS) - Expedia.co.uk ![Adobe](https://images.trvl-media.com/place/178276/0ac26ddb-b173-4141-acdc-a3f6b4a8d77b.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178276/0ac26ddb-b173-4141-acdc-a3f6b4a8d77b.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £414 Cheap Flights from Rome (FCO) to Las Vegas (LAS) [View £414 flight on Fri, 16 Jan 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:FCO,to:LAS,departure:16/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:413.04&airProductToken=AQppCjIIwoIBEgM1NjMYxXAg64kBKIfJggMwtsqCAzhPQABYAWoFTk9CQUdyCU9MTjVDNUI0UAozCMKCARIDMjc1GOuJASCLkAEohc2CAzCK0oIDOE9AAVgBagVOT0JBR3IJT0xONUM1QjRQEgoIARABGAEqAkJBGAEiBAgBEAEoAigDMA0) - [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 Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Harry Reid Intl. Airport (LAS) - ![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:fco,to:las,departure:16/11/2025TANYT&leg2=from:las,to:fco,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.co.uk/Flights-Search?leg1=from:fco,to:las,departure:16/11/2025TANYT&leg2=from:las,to:fco,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![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:fco,to:las,departure:16/11/2025TANYT&leg2=from:las,to:fco,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![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:fco,to:las,departure:16/11/2025TANYT&leg2=from:las,to:fco,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![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:fco,to:las,departure:16/11/2025TANYT&leg2=from:las,to:fco,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"IB"}}]) - ![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:fco,to:las,departure:16/11/2025TANYT&leg2=from:las,to:fco,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) - ![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:fco,to:las,departure:16/11/2025TANYT&leg2=from:las,to:fco,departure:23/11/2025TANYT&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 Rome (FCO) to Las Vegas (LAS) Prices were available within the past 7 days and start at £414 for one-way flights and £617 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Condor](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DE.gif) Sat, 30 May - Thu, 4 Jun FCO Rome LAS Las Vegas £617 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:FCO,to:LAS,departure:30/05/2026TANYT&leg2=from:LAS,to:FCO,departure:04/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:616.56&airProductToken=AQqkAQo1CMSKARIENDQxOBjFcCClBCjyq44DMOCsjgM4WUAAWAFqDkVDT05PTVlDTEFTU0lDcgNTUE8KNQjEigESBDIwMTYYpQQgqVEoq62OAzC9sY4DOFlAAFgBag5FQ09OT01ZQ0xBU1NJQ3IDU1BPCjQIwmwSAzcxMRipUSCLkAEokbSOAzDzto4DOFlAAFgBag5FQ09OT01ZQ0xBU1NJQ3IDU1BPCmcKMgjEigESBDIwNjMYi5ABIKUEKM_sjgMw4_GOAzhZQABYAWoLRUNPTk9NWVpFUk9yAkxNCjEIxIoBEgQ0MTg3GKUEIMVwKN_0jgMwzfWOAzhZQABYAWoLRUNPTk9NWVpFUk9yAkxNEgoICxABGAgqAkRFGAEiBAgBEAEoAjAD) ![Condor](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DE.gif) Sat, 30 May - Thu, 4 Jun FCO Rome LAS Las Vegas £626 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:FCO,to:LAS,departure:30/05/2026TANYT&leg2=from:LAS,to:FCO,departure:04/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:625.49&airProductToken=AQqoAQo1CMSKARIENDQxOBjFcCClBCjyq44DMOCsjgM4WUAAWAFqDkVDT05PTVlDTEFTU0lDcgNTUE8KNgjEigESBDIwODAYpQQgi7gBKMmtjgMwmbOOAzhZQABYAWoORUNPTk9NWUNMQVNTSUNyA1NQTwo3CMGmARIEMjE1OBiLuAEgi5ABKJW1jgMw5LWOAzhZQABYAWoORUNPTk9NWUNMQVNTSUNyA1NQTwpnCjIIxIoBEgQyMDYzGIuQASClBCjP7I4DMOPxjgM4WUAAWAFqC0VDT05PTVlaRVJPcgJMTQoxCMSKARIENDE4NxilBCDFcCjf9I4DMM31jgM4WUAAWAFqC0VDT05PTVlaRVJPcgJMTRIKCAsQARgIKgJERRgBIgQIARABKAIwAw) ![Condor](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DE.gif) Mon, 7 Sept - Mon, 14 Sept FCO Rome LAS Las Vegas £637 Return found 4 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:FCO,to:LAS,departure:07/09/2026TANYT&leg2=from:LAS,to:FCO,departure:14/09/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:636.40&airProductToken=AQpRCiYIxIoBEgQ0NDE4GMVwIKUEKPKQlwMw4JGXAzhXQABYAXIEUVJBMQonCMSKARIEMjA2NBilBCCLkAEom5SXAzDSmZcDOFFAAVgBcgRRUkExCoEBCikIwaYBEgM2MTMYi5ABILJxKKjjlwMwi-SXAzhPQABYAXIHR1JBWENBTAopCMSKARIEMjA5NxiycSClBCji55cDMIDtlwM4R0ABWAFyB0dSQVhDQUwKKQjEigESBDQ0MTkYpQQgxXAo0O2XAzC-7pcDOFdAAVgBcgdHUkFYQ0FMEgoIARABGAEqAkRFGAEiBAgBEAEoAigDKAQwAQ) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Mon, 23 Mar - Sat, 4 Apr FCO Rome LAS Las Vegas £638 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:FCO,to:LAS,departure:23/03/2026TANYT&leg2=from:LAS,to:FCO,departure:04/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:637.90&airProductToken=AQqtAQozCMyQARIDMjQzGMVwIKUEKO2uiAMw4K-IAzhLQABYAWoIRUNPTElHSFRyCEtNUTZQREJRCjMIzJABEgM0NTQYpQQgsnEoprCIAzDYtYgDOEtAAVgBaghFQ09MSUdIVHIIS01RNlBEQlEKQQjMkAESBDkyMTIYsnEgi5ABKJe6iAMw_rqIAzhLQAFYAWoIRUNPTElHSFRyCEtNUTZQREJRegoI1YIBEgQ5MjEyCoUBCkEIzJABEgQ5MzEzGIuQASCuHCjIuYkDMKq7iQM4S0AAWAFqCEVDT0xJR0hUcghLTVE2UERCUXoKCNWCARIEOTMxMwpACMyQARIEODY4MxiuHCDFcCjYvIkDMIPBiQM4S0ABWAFqCEVDT0xJR0hUcghLTVE2UERCUXoKCNWCARIEODY4MxIKCAIQARgCKgJMSBgBIgQIARABKAIoAygEMAs) ![Swiss International Air Lines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LX.gif) Mon, 23 Mar - Sat, 4 Apr FCO Rome LAS Las Vegas £645 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:FCO,to:LAS,departure:23/03/2026TANYT&leg2=from:LAS,to:FCO,departure:04/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:644.60&airProductToken=AQq4AQpACMywARIEMTczMxjFcCC5PCiDtYgDMOK1iAM4S0AAWAFqCEVDT0xJR0hUcghLTVE2UERCUXoKCLKYARIEMTczMwoxCMywARIBOBi5PCCuHCj6vIgDMNzBiAM4S0ABWAFqCEVDT0xJR0hUcghLTVE2UERCUQpBCMywARIEMzI1OBiuHCCLkAEohsOIAzCJxYgDOEtAAVgBaghFQ09MSUdIVHIIS01RNlBEQlF6CgjVggESBDMyNTgKeQpBCMywARIEODAwMxiLkAEguTworL-JAzCsxIkDOEtAAFgBaghFQ09MSUdIVHIIS01RNlBEQlF6CgjXlgESBDgwMDMKNAjMsAESBDE3MzIYuTwgxXAo0cWJAzCwxokDOEtAAVgBaghFQ09MSUdIVHIIS01RNlBEQlESCggCEAEYAioCTFgYASIECAEQASgCKAMoBDAL) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Sat, 30 May - Wed, 3 Jun FCO Rome LAS Las Vegas £658 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:FCO,to:LAS,departure:30/05/2026TANYT&leg2=from:LAS,to:FCO,departure:03/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:657.24&airProductToken=AQppCjIIwoIBEgM1NTEYxXAg64kBKNWujgMw9a-OAzhPQABYAWoFTk9CQUdyCU9LTjdDOEI0UAozCMKCARIDMjc1GOuJASCLkAEoz7COAzDUtY4DOE9AAVgBagVOT0JBR3IJT0tON0M4QjRQCmkKMwjCggESAzI3MBiLkAEg64kBKLThjgMwh-aOAzhPQABYAWoFTk9CQUdyCU9LTjdDOEI0UAoyCMKCARIDNTYyGOuJASDFcCjx6Y4DMJHrjgM4T0ABWAFqBU5PQkFHcglPS043QzhCNFASCggBEAEYASoCQkEYASIECAEQASgCKAMwDQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Thu, 13 Nov - Mon, 24 Nov FCO Rome LAS Las Vegas £665 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:FCO,to:LAS,departure:13/11/2025TANYT&leg2=from:LAS,to:FCO,departure:24/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:664.10&airProductToken=AQqbAQoxCMGGARIEOTE1NRjFcCClBCit-PwCMKD5_AI4S0AAWAFqBUJBU0lDcghLTERYRFhCUQoxCMGGARIDODQxGKUEIJjOASjh-fwCMP39_AI4S0ABWAFqBUJBU0lDcghLTERYRFhCUQozCMGGARIEMTcwMxiYzgEgi5ABKLWB_QIw54P9AjhLQAFYAWoFQkFTSUNyCEtMRFhEWEJRCmgKMwjBhgESBDE3MDQYi5ABIJjOASiCgP4CMP6B_gI4S0AAWAFqBUJBU0lDcghLTERYRFhCUQoxCMGGARIDODkwGJjOASDFcCiwiP4CMLOM_gI4S0ABWAFqBUJBU0lDcghLTERYRFhCURIKCAIQARgCKgJBQxgBIgQIARABKAIoAygEMAE) ![Brussels Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/SN.gif) Sat, 23 May - Wed, 27 May FCO Rome LAS Las Vegas £671 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:FCO,to:LAS,departure:23/05/2026TANYT&leg2=from:LAS,to:FCO,departure:27/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:670.60&airProductToken=AQptCjQI05wBEgQ4OTQ2GMVwIIgYKJTejQMw7OKNAzhLQABYAWoIRUNPTElHSFRyCEtMUTZEWEJRCjUI05wBEgQ4OTU2GIgYIIuQASjB440DMP7ljQM4S0ABWAFqCEVDT0xJR0hUcghLTFE2RFhCUQptCjUI05wBEgQ4ODM2GIuQASCIGCjojY4DMOyPjgM4S0AAWAFqCEVDT0xJR0hUcghLTFE2RFhCUQo0CNOcARIEODk0NRiIGCDFcCivkY4DMLeVjgM4S0ABWAFqCEVDT0xJR0hUcghLTFE2RFhCURIKCAIQARgCKgJTThgBIgQIARABKAIoAygEMAs) ![Iberia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/IB.gif) Mon, 7 Sept - Mon, 14 Sept FCO Rome LAS Las Vegas £687 Return found 4 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:FCO,to:LAS,departure:07/09/2026TANYT&leg2=from:LAS,to:FCO,departure:14/09/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:686.50&airProductToken=AQqBAQo-CMmEARIEODIxORjFcCCjsQEo4JGXAzC1l5cDOE9AAFgBagVCQVNJQ3IIT0tON0M4Qld6CgjBggESBDgyMTkKPwjJhAESBDQ0MTYYo7EBIIuQASjQmJcDMPeZlwM4T0ABWAFqBUJBU0lDcghPS043QzhCV3oKCMGCARIENDQxNgp_Cj4IyYQBEgQ0OTQxGIuQASCuHCiA5JcDMOPllwM4T0AAWAFqBUJBU0lDcghPS043QzhCV3oKCMGCARIENDk0MQo9CMmEARIEODA0OBiuHCDFcCiS55cDMK7rlwM4T0ABWAFqBUJBU0lDcghPS043QzhCV3oKCMGCARIEODA0OBIKCAIQARgCKgJJQhgBIgQIARABKAIoAygEMA0) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, 18 Nov - Mon, 24 Nov FCO Rome LAS Las Vegas £696 Return found 10 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:FCO,to:LAS,departure:18/11/2025TANYT&leg2=from:LAS,to:FCO,departure:24/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:695.50&airProductToken=AQptCjMI1YIBEgI0MRjFcCDEjQEomrL9AjD8tv0COEtAAFgBaghFQ09CQVNJQ3IIS0xQTUY2QlEKNgjVggESBDEwNjMYxI0BIIuQASjqt_0CMMa6_QI4S0ABWAFqCEVDT0JBU0lDcghLTFBNRjZCUQptCjUI1YIBEgM1NDYYi5ABIMSNASjY-f0CMID8_QI4S0AAWAFqCEVDT0JBU0lDcghLTFBNRjZCUQo0CNWCARIDNTEwGMSNASDFcCif_f0CMJOB_gI4S0ABWAFqCEVDT0JBU0lDcghLTFBNRjZCURIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) ## Find the cheapest month to fly from Rome (FCO) to Las Vegas (LAS) ### June is typically the cheapest month to fly From £409 - £828 per traveller. ## Frequently asked questions ### How much is a flight from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to LAS? > The lowest price advertised for a round-trip journey between Fiumicino Airport and LAS is £617. But you better get a move on. This figure is taken from fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Fiumicino Airport to Harry Reid Airport (formerly McCarran Airport)? > We get that circumstances change unexpectedly, so we've made it as hassle-free as possible for you to cancel your flight online. Just head to the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033) and follow the instructions. ### How do I find cheap flights from FCO to LAS 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 Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to Harry Reid Airport (formerly McCarran Airport) flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from FCO to Harry Reid Airport (formerly McCarran Airport)? > The distance is around 9,800 kilometres, so fill your carry-on luggage with all the items you need to make the long journey comfortable. Not sure what to take on board your Fiumicino to Las Vegas flight? A sleep mask, earplugs and a travel pillow are among the essentials. ### Which airlines fly direct from Fiumicino Airport to LAS? > You won't find any airlines flying directly between FCO and Harry Reid Airport (formerly McCarran Airport), so be ready to make at least one stop on your journey. A layover can be a good way to break up a trip! ### Are FCO to Harry Reid Airport (formerly McCarran Airport) flight tickets cheaper when they're purchased at the last minute? > It is possible to find amazing last-minute deals from Fiumicino - Leonardo da Vinci Intl. Airport (FCO) to LAS, but it's also possible to miss out entirely! As many airlines publish prices up to 12 months in advance, it's worth keeping an eye on fares early and being ready to pounce when you see a good bargain. Expedia compares carrier prices and updates flight deals regularly, so you can be sure you're always getting the latest offers. ## Travel information | Origin airport | Fiumicino - Leonardo da Vinci Intl. | | --- | --- | | Destination airport | Harry Reid Intl. | | Airlines serving | Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, KLM, Lufthansa, Swiss International Air Lines, United, WestJet | | Return price | £617 | | Distance | 9780 km | ## Book with confidence ### Compare flights from Rome to Las Vegas easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Rome to Las Vegas. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Harry Reid Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Fiumicino - Leonardo da Vinci Intl. to Harry Reid 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 Fiumicino - Leonardo da Vinci Intl. (FCO) to Harry Reid Intl. (LAS) The easiest way to view the best deals on flights from Rome to Las Vegas 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 Fiumicino - Leonardo da Vinci Intl. to Harry Reid Intl. start at just £617 and range up to £1,116.   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Rome and Las Vegas - booking your flight during May, the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Rome to Las Vegas flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Fiumicino - Leonardo da Vinci Intl. to Harry Reid 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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