Title: Cheap Flights from Basel to Sion (BSL to SIR) - Expedia.co.uk ![Adobe](https://images.trvl-media.com/place/9869/40df6fea-c548-4064-9088-2549769f6f5f.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/9869/40df6fea-c548-4064-9088-2549769f6f5f.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Basel (BSL) to Sion (SIR) - [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 EuroAirport Airport (BSL) to Sion (SIR) - ![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:bsl,to:sir,departure:30/09/2025TANYT&leg2=from:sir,to:bsl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![easyJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_U2.svg) easyJet [](https://www.expedia.co.uk/Flights-Search?leg1=from:bsl,to:sir,departure:30/09/2025TANYT&leg2=from:sir,to:bsl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"U2"}}]) - ![Lufthansa](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:bsl,to:sir,departure:30/09/2025TANYT&leg2=from:sir,to:bsl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![Ryanair](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_FR.svg) Ryanair [](https://www.expedia.co.uk/Flights-Search?leg1=from:bsl,to:sir,departure:30/09/2025TANYT&leg2=from:sir,to:bsl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"FR"}}]) - ![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:bsl,to:sir,departure:30/09/2025TANYT&leg2=from:sir,to:bsl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Jet2](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LS.svg) Jet2 [](https://www.expedia.co.uk/Flights-Search?leg1=from:bsl,to:sir,departure:30/09/2025TANYT&leg2=from:sir,to:bsl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LS"}}]) - ![Swiss International Air Lines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LX.svg) Swiss International Air Lines [](https://www.expedia.co.uk/Flights-Search?leg1=from:bsl,to:sir,departure:30/09/2025TANYT&leg2=from:sir,to:bsl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) - ## 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 | EuroAirport | | --- | --- | | Destination airport | Sion | | Distance | 153 km | ## Book with confidence ### Compare flights from Basel to Sion easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Basel to Sion. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Sion in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from EuroAirport to Sion.   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 EuroAirport (BSL) to Sion (SIR) The easiest way to view the best deals on flights from Basel to Sion 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 EuroAirport to Sion 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 Basel and Sion - 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 Basel to Sion flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from EuroAirport to Sion 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 - Trending Routes - Trending Flights - Top Flights Destinations - Related Airlines - Cheap Flights from Other Airports - Expedia's Latest Trends ### Top Routes from Basel - [Basel to Bristol (BSL - BRS)](https://expedia.co.uk/lp/flights/bsl/brs/basel-to-bristol) - [Basel to London (BSL - LCY)](https://expedia.co.uk/lp/flights/bsl/lcy/basel-to-london) - [Basel to Paris (BSL - CDG)](https://expedia.co.uk/lp/flights/bsl/cdg/basel-to-paris) - [Basel to London (BSL - LTN)](https://expedia.co.uk/lp/flights/bsl/ltn/basel-to-london) - [Basel to Amsterdam (BSL - AMS)](https://expedia.co.uk/lp/flights/bsl/ams/basel-to-amsterdam) - [Basel to Málaga (BSL - AGP)](https://expedia.co.uk/lp/flights/bsl/agp/basel-to-malaga) - [Basel to Edinburgh (BSL - EDI)](https://expedia.co.uk/lp/flights/bsl/edi/basel-to-edinburgh) - 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