A gastric sleeve in Spain runs $8,500-13,000, with Madrid private hospitals quoting around €11,000 all-inclusive. Spain's verified option is a large JCI hospital rather than a bariatric-only clinic — which matters most for patients whose weight comes with other medical problems.
OB Klinika in Prague performs over 500 bariatric operations a year and does nothing else. A gastric sleeve in the Czech Republic runs $10,000-15,000 against £8,500-14,000 in the UK — so the argument here is specialisation and EU standards, not a dramatic saving.