Title: Cheap Flights to Roundup - Expedia.co.uk ![Horses and cowboys at a roundup in Montana](https://images.trvl-media.com/place/183525/4856c25b-2bc8-481d-8774-5dae01307405.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/183525/4856c25b-2bc8-481d-8774-5dae01307405.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £128 Cheap Flights to Roundup [View £128 flight on Sat, 25 Apr 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:DEN,to:BIL,departure:25/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:127.10&airProductToken=AQpfCi0IwaYBEgM2NDcYg2kgkgEo8KSLAzCnposDOFhAAFgBagJTVnIIR0gyT0FWQk4KLgjBpgESBDMwODkYkgEggVoo7KaLAzDfp4sDOFhAAVgBagJTVnIIUUgyT0FTQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) - [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 [Hotels in Roundup](https://expedia.co.uk/Roundup-Hotels.d183525.Travel-Guide-Hotels)[Roundup Car Hire](https://expedia.co.uk/Compare-Cheap-Car-Hire-In-Roundup.d183525.Car-Hire-Guide)[Roundup Holidays](https://expedia.co.uk/Roundup.d183525.Holidays-City-Breaks) ## Popular airlines to Roundup - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Roundup, Montana, United States of America,departure:14/03/2026TANYT&leg2=from:Roundup, Montana, United States of America,to:CMH,departure:21/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](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:CMH,to:Roundup, Montana, United States of America,departure:14/03/2026TANYT&leg2=from:Roundup, Montana, United States of America,to:CMH,departure:21/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](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:CMH,to:Roundup, Montana, United States of America,departure:14/03/2026TANYT&leg2=from:Roundup, Montana, United States of America,to:CMH,departure:21/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](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:CMH,to:Roundup, Montana, United States of America,departure:14/03/2026TANYT&leg2=from:Roundup, Montana, United States of America,to:CMH,departure:21/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](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:CMH,to:Roundup, Montana, United States of America,departure:14/03/2026TANYT&leg2=from:Roundup, Montana, United States of America,to:CMH,departure:21/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Roundup, Montana, United States of America,departure:14/03/2026TANYT&leg2=from:Roundup, Montana, United States of America,to:CMH,departure:21/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![](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:CMH,to:Roundup, Montana, United States of America,departure:14/03/2026TANYT&leg2=from:Roundup, Montana, United States of America,to:CMH,departure:21/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![](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\* - ![](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\* - ![](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 round-trip flights to Roundup Prices were available within the past 7 days and start at £128 for one-way flights and £74 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Cape Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/9k.gif) Sun, 14 Jun - Sun, 21 Jun GGW Glasgow BIL Billings £74 Return found 11 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:GGW,to:BIL,departure:14/06/2026TANYT&leg2=from:BIL,to:GGW,departure:21/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:73.80&airProductToken=AQosCioIuZYBEgQxNzU2GMaxASCBWiiU2I8DMPDYjwM4U0AAWAFqAkVScgNTSVAKLAoqCLmWARIEMTc1NxiBWiDGsQEo3aiQAzC2qZADOFNAAFgBagJFUnIDU0lQEgoIARABGAEqAkhSGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Tue, 20 Oct - Tue, 27 Oct DFW Dallas BIL Billings £176 Return found 2 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:DFW,to:BIL,departure:20/10/2026TANYT&leg2=from:BIL,to:DFW,departure:27/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:175.70&airProductToken=AQpgCi4IwaYBEgM0MTUYo7EBIJIBKKP7mgMwpf2aAzhYQABYAWoCU1ZyCE9IMk9BSkJOCi4IwaYBEgQyNDU3GJIBIIFaKP_-mgMw8P-aAzhYQAFYAWoCU1ZyCE9IMk9BSkJOCmAKLgjBpgESBDIwODQYgVogkgEo88mbAzD1ypsDOFhAAFgBagJTVnIIT0gyT0FKQk4KLgjBpgESAzQyNBiSASCjsQEom8ybAzCLzpsDOFhAAVgBagJTVnIIT0gyT0FKQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Condor](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DE.gif) Mon, 13 Apr - Mon, 20 Apr LGW London BIL Billings £708 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LGW,to:BIL,departure:13/04/2026TANYT&leg2=from:BIL,to:LGW,departure:20/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:707.93&airProductToken=AQqmAQo2CMSKARIENDEyMhjLsQEgpQQo0JyKAzCqnYoDOFlAAFgBag5FQ09OT01ZQ0xBU1NJQ3IDU1BPCjUIxIoBEgQyMDMyGKUEIJIBKJ2eigMwjqOKAzhZQABYAWoORUNPTk9NWUNMQVNTSUNyA1NQTwo1CMGmARIEMjQ1NxiSASCBWii0pYoDMKamigM4WUAAWAFqDkVDT05PTVlDTEFTU0lDcgNTUE8KsgEKNQjBpgESBDI0NDYYgVogkgEoxO2KAzDK7ooDOFlAAFgBag5FQ09OT01ZQ0xBU1NJQ3IDU1BPCjUIxIoBEgQyMDMzGJIBIKUEKObyigMwvveKAzhZQABYAWoORUNPTk9NWUNMQVNTSUNyA1NQTwpCCMSKARIENDMxNxilBCDLsQEo7_mKAzDO-ooDOFlAAFgBag5FQ09OT01ZQ0xBU1NJQ3IDU1BPegoIxIwBEgQ0MzE3EgoICxABGAgqAkRFGAEiBAgBEAEoAjAD) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, 15 Apr - Wed, 22 Apr LHR London BIL Billings £719 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:BIL,departure:15/04/2026TANYT&leg2=from:BIL,to:LHR,departure:22/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:718.39&airProductToken=AQpnCjEIwYIBEgI3ORjriQEgo7EBKIW1igMw9rmKAzhCQABYAWoFQkFTSUNyCE9MWDhDMUI0CjIIwYIBEgQzOTM3GKOxASCBWijluooDMJu8igM4QkABWAFqBUJBU0lDcghPTFg4QzFCNAqaAQoyCMGCARIEMzQ2OBiBWiCjsQEo54aLAzCTiIsDOEJAAFgBagVCQVNJQ3IIT0xYOEMxQjQKMgjBggESBDI4ODEYo7EBIK4cKMyIiwMw5YmLAzhCQAFYAWoFQkFTSUNyCE9MWDhDMUI0CjAIwYIBEgI5OBiuHCDriQEosoqLAzCDjosDOEJAAVgBagVCQVNJQ3IIT0xYOEMxQjQSCggCEAEYAioCQUEYASIECAEQASgCKAMoBDAL) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, 14 Apr - Mon, 20 Apr LHR London BIL Billings £735 Return found 4 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:BIL,departure:14/04/2026TANYT&leg2=from:BIL,to:LHR,departure:20/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:734.95&airProductToken=AQpoCiIIxJgBEgQ5NTk2GOuJASCAkwEo16eKAzCsqIoDOEVAAFgBCiAIxJgBEgMxNjUYgJMBIMx8KLipigMw1q2KAzhFQAFYAQogCMSYARIEMjk0MRjMfCCBWijbrooDMN6vigM4RUABWAEKQwogCMSYARIENDAzOBiBWiDyEiid74oDMP3vigM4RUAAWAEKHwjEmAESAjUwGPISIOuJASj48YoDMLz2igM4RUABWAESCggBEAEYASoCREwYASIECAEQASgEMAE) ## Find the cheapest month to fly from Columbus (CMH) to Billings (BIL) ### January is typically the cheapest month to fly From £229 - £826 per traveller. ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-uk-fr-de.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Holiday Sale Members save up to 40% on hotels and holiday homes. Plan this year’s big trip and save. [Book now](https://expedia.co.uk/cheap-deals?rfrr=FTG_SPRING_PROMO_) ## Frequently asked questions ### What is the name of Roundup's airport? ### What airport is best to fly into Roundup? ### How many airlines fly to Roundup? ### Which airlines fly to Roundup? ### How many nonstop flights are there to Roundup? ### Where are the most popular flights to Roundup departing from? ### How long is the flight to Roundup Airport? ### How to book the cheapest flight to Roundup? ### Do you have any tips for my flight to Roundup? > - Air travel can be a pleasure if you pack the right things. First of all you'll need basic toiletries, such as deodorant and a toothbrush, a fresh change of clothes and a few magazines. Next, find a spot in your bag for your phone, tablet and chargers, your important medications and maybe a cosy neck pillow as well. Last, but definitely not least, don't forget to bring your passport, travel papers and some cash. > > > Do not pack the following items in your hand luggage: > > > - Check carefully that you don't have sharp or pointed objects lurking in one of the compartments of your carry-on luggage. Other restricted items include flammable or explosive products, such as aerosol cans and bleach, and gels and liquids in containers with a volume of more than 3.4 ounces (100 millilitres). > > > What to wear on a flight: > > > - Comfort should be your number one priority when deciding what to wear during your flight. Loose, breathable clothing is a smart option, as are flat, slightly roomy shoes. > - It's likely you've heard about deep vein thrombosis (DVT), a blood clot condition caused by prolonged periods of sitting. To reduce your risk on board, drink plenty of water, consider wearing compression socks or tights and move your legs and feet often. ### How to get through airport security fast when flying to Roundup? > - Your travel ID and boarding pass will need to be inspected by airport security personnel. Have them close by to avoid fumbling around for them. > - Next up, both you and your carry-on luggage will be X-rayed. To speed things up, take off anything that might set the alarms off. Items such as your belt, jacket and earphones need to go through the machine. > - Your electronic gadgets like phones and laptops will also have to go through the machine for inspection. No need to worry though, you'll be back online in no time. > - Want to bring along your favourite perfume? As long as it's in a container no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-lock bag, it's fine to bring with you in your carry-on luggage. > - Lightweight sneakers are a practical footwear choice as you're less likely to be asked to remove them when going through security. Big boots and other heavy-style shoes are often subjected to extra screening. > - Avoid taking prohibited items in your carry-on bag. If you have any sharp or pointed objects, pack them in your checked suitcase. They won't be allowed in the cabin. ## Book with confidence # Expedia flights to Roundup Searching for cheap flights to Roundup? No travel company presents more choices than Expedia if you're looking to compare flights to Roundup. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Montana. Expedia provides the cheapest flights to many destinations in Montana and you may find even greater savings if you combine your flight with a hotel stay in Roundup. Expedia is the largest online travel agency which means that Expedia have access to cheap flights. So make sure you check Expedia regularly for these bargain flights because the cheapest airline tickets sell out fast. Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Roundup for that period and let you choose your preferred time and airline. If you need additional assistance, Expedia Customer Service representatives are available from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends. Our capable staff will be able to help you with any questions regarding your Roundup flight, or other booking questions that may arise. When you book flights with Expedia you can rest assured that you have booked the best flight at the lowest price. ## Travel information | Destination airport | Logan Intl. | | ----------------------------- | ----------- | | Destination airport IATA code | BIL | | Destination city name | Billings | | Return price | £74 | ## Trending flights to Roundup Prices were available within the past 7 days and start at £128 for one-way flights and £74 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. 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) Mon, 13 Apr - Mon, 20 Apr LGW London BIL Billings £708 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LGW,to:BIL,departure:13/04/2026TANYT&leg2=from:BIL,to:LGW,departure:20/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:707.93&airProductToken=AQqmAQo2CMSKARIENDEyMhjLsQEgpQQo0JyKAzCqnYoDOFlAAFgBag5FQ09OT01ZQ0xBU1NJQ3IDU1BPCjUIxIoBEgQyMDMyGKUEIJIBKJ2eigMwjqOKAzhZQABYAWoORUNPTk9NWUNMQVNTSUNyA1NQTwo1CMGmARIEMjQ1NxiSASCBWii0pYoDMKamigM4WUAAWAFqDkVDT05PTVlDTEFTU0lDcgNTUE8KsgEKNQjBpgESBDI0NDYYgVogkgEoxO2KAzDK7ooDOFlAAFgBag5FQ09OT01ZQ0xBU1NJQ3IDU1BPCjUIxIoBEgQyMDMzGJIBIKUEKObyigMwvveKAzhZQABYAWoORUNPTk9NWUNMQVNTSUNyA1NQTwpCCMSKARIENDMxNxilBCDLsQEo7_mKAzDO-ooDOFlAAFgBag5FQ09OT01ZQ0xBU1NJQ3IDU1BPegoIxIwBEgQ0MzE3EgoICxABGAgqAkRFGAEiBAgBEAEoAjAD) \*Available to Expedia members.