Boni Vini - Gaston et Eric Bonvin - Flanthey

About the winery

Gaston and Eric Bonvin run this family business, founded in 1940 by their father and their grandfather François Bonvin. The winery is located in the village of Flanthey (750 m.a.s.l.) in the central-Valais municipality of Lens, between the towns of Sion and Sierre.

Boni Vini’s eight hectares of vines are all located on the slopes of the right bank of the Rhône, between St-Léonard and Sierre. Its wines are all produced on its own vineyard and bear the label “Les Coteaux de Sierre” (The Hillsides of Sierre).

Sixty per cent of their production comes from red grape varieties (Pinot Noir, Gamay, Humagne Rouge, Cabernet Franc and Syrah) and 40% from white grape varieties (Chasselas, Rhin, Muscat, Humagne Blanc, Pinot Gris and Petite Arvine). Since 1996, Boni Vini has also been developing its production of sweet wines with a Petite Arvine flétrie and a Pinot Noir flétri aged in barrels. The highlight of their offering is arguably the Chelinoir, a blend of three red grape varieties (Pinot Noir, Humagne Rouge and Syrah), which is also barrel-aged.

For better quality control, the wines are produced exclusively using grapes grown on the estate. The Boni Vini winery stands for tradition, and its wines are a faithful expression of the Valais terroir.


Boni Vini - Gaston et Eric Bonvin


Rte de Lens 40

3978 Flanthey

See on map



Château de Villa

This is the largest wine cellar in Valais, with 650 select wines and the expertise of more than 110 of the canton’s winemakers.

Plan your tasting

    Opening hours

    By appointment


    40 people



    Practical information

    Parking space

    Accessible to people with reduced mobility

    Bus stop: Flanthey, Chelin

Wine list

  • White

    • Fendant
    • Heida
    • Humagne Blanc
    • Johannisberg
    • Malvoisie
    • Muscat
    • Petite Arvine
  • Rosé

    • Oeil-de-Perdrix
    • Rosé
  • Red

    • Cornalin
    • Dôle
    • Gamay
    • Humagne Rouge
    • Merlot
    • Pinot Noir
    • Syrah
    • Cabernet Franc
  • Others

    • Red assemblage
    • Grand Cru
    • Sweet wine
    • Liqueur wine
    • Sparkling wine

Award-winning wines

  • Oeil de Perdrix de Flanthey


  • Cornalin Coteaux de Sierre


  • Pinot Noir de Flanthey


Your tasting profile

Select your favourite type of wine or indicate what you are looking for in a wine and find out which Valais wine is right for you.

apricots, citrus fruits, exotic or red fruits, almonds, etc.Fruity

violet, elder, lime, rose, etc.Floral

low in alcohol, low in tanninsLight


intense alcohol, acidity and aromasFull

dominated by acid, which gives the wine a fresh appearanceCrisp


without acidity, round, smoothSoft

no residual sugarDry


mellow wine, fairly supple, fleshyRich

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