The best hotel gyms in Flensburg.

One hotel per budget, picked for its gym, not its lobby. Size, equipment, opening hours and extras, with sources.

Checked: 2026-11-02

Best gym in the city: Das James. Fitness centre with classes and personal trainer inside a three-level wellness area with pools and 4 saunas.

LuxuryBest gym in the city
€403 / nightDas James, FlensburgHotel photo: Booking.com

Das James

★★★★★ · Fördepromenade

Fitness centre with fitness and yoga classes and a personal trainer, inside a wellness area over three levels with indoor and outdoor pools and four saunas.

Extras
Fitness and yoga classes · Personal trainer · Indoor and outdoor pools · 4 saunas · Steam room
See prices on Booking
Sources: myboutiquehotel.comtravelmyth.co.ukbooking.com
Mid-range
€251 / nightHotel Hafen Flensburg, FlensburgHotel photo: Booking.com

Hotel Hafen Flensburg

★★★★ · Flensburg

Small gym in a passageway with three exercise bikes and a cross trainer. Reviewers note there are no weights or bench.

Equipment
Three exercise bikes · Cross trainer

Limited information: confirm the gym with the hotel before booking.

See prices on Booking
Sources: travelmyth.co.ukbooking.com
Budget
Hotel Alte Post Flensburg, FlensburgGym photo: Booking.com

Hotel Alte Post Flensburg

★★★ · Flensburg

Gym with cardio and strength machines that reviewers call well equipped and clean.

Equipment
Cardio machines · Strength machines

Limited information: confirm the gym with the hotel before booking.

See prices on Booking
Sources: travelmyth.co.ukbooking.com
How we choose. We look only at the gym: size, free weights and machines, opening hours, extras like a pool or sauna, and what guests say about it. Categories follow the official star rating. Every fact comes from a public source listed under each hotel. Links to Booking.com are affiliate links: if you book, we may earn a commission at no cost to you.

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