Title: Cheap Flights from London to Williston (LHR to XWA) - Expedia.co.uk ![Fort Union Trading Post National Historic Site](https://images.trvl-media.com/place/1636/216762a5-d8a6-4666-828a-1f78827c1e83.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/1636/216762a5-d8a6-4666-828a-1f78827c1e83.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from London (LHR) to Williston (XWA) - [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 Williston, ND (XWA-Basin Intl.) - ![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:xwa,departure:16/10/2025TANYT&leg2=from:xwa,to:lhr,departure:23/10/2025TANYT&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:xwa,departure:16/10/2025TANYT&leg2=from:xwa,to:lhr,departure:23/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ## 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) ## Travel information | Origin airport | Heathrow | | --- | --- | | Destination airport | Basin Intl. | | Distance | 6717 km | ## Book with confidence ### Compare flights from London to Williston easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Williston. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Basin Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Basin 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 Basin Intl. (XWA) The easiest way to view the best deals on flights from London to Williston 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 Basin Intl. start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near London and Williston - booking your flight during , 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 Williston flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Basin 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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