Obesity surgery
Gastric sleeve vs bypass: cost compared (2026)
Medically reviewed by Dr. Ayşe Demir
Quick answer
At SaluVista, a gastric sleeve starts from £2,500 / $3,365 (roughly €2,950). A gastric bypass starts from £3,700 / $4,980 (roughly €4,350). The gap reflects the bypass being a longer, more technically complex operation. It reconstructs the digestive tract, not just reduces stomach size. Both are "from" guide prices. Your real quote is itemised after a medical assessment.
- Gastric sleeve from £2,500 / $3,365 · gastric bypass from £3,700 / $4,980 · mini bypass (OAGB) from £3,200 / $4,305.
- The price difference mainly reflects operating time, surgical complexity and follow-up, not a "better vs worse" hospital.
- Every quote is itemised and confirmed after assessment, with no guessing and no hidden extras.
- Price should never be the only factor — the right procedure depends on your health, BMI and goals.
In this guide
Comparing a gastric sleeve against a gastric bypass? You've probably already noticed the two aren't priced the same. That's not arbitrary. It comes down to how different the operations actually are. This guide breaks down where the price gap comes from, what a genuinely itemised quote should cover, and how to think about cost without losing sight of what matters most: which procedure is medically right for you.
It's general information to help you prepare. Not medical advice.
The prices, side by side
These are SaluVista's current guide prices. They're always quoted as "from" figures. Your final, itemised cost depends on your individual case, after assessment.
| Procedure | From (GBP) | Approx. (EUR) |
|---|---|---|
| Gastric sleeve | £2,500 / $3,365 | ~€2,950 |
| Mini gastric bypass (OAGB) | £3,200 / $4,305 | ~€3,780 |
| Gastric bypass | £3,700 / $4,980 | ~€4,350 |
| Revision bariatric surgery | from about £3,500 / $4,710 | ~€4,130 |
Euro figures use an approximate £1 ≈ €1.18 conversion, for orientation only. They move with exchange rates. For more, see our gastric sleeve cost guide. Or our gastric bypass cost guide.
Why the bypass costs more
It's a longer, more complex operation
A gastric sleeve permanently removes a large portion of the stomach. What's left is a slim "sleeve," in one main surgical step. A gastric bypass goes further: it creates a small stomach pouch and reroutes part of the small intestine to connect to it, meaning more surgical connections, more theatre time, and a more technically demanding procedure overall. That extra time and skill is reflected in the price.
More intensive follow-up
The bypass changes how food and nutrients are absorbed. So patients typically need closer nutritional monitoring afterward, including lifelong vitamin and mineral supplements. That follow-up belongs in the price. It's part of what an honest, itemised quote should do.
Not a reflection of quality
The price gap is about the operation itself. It's not about one procedure being done to a lower standard than the other. Both are performed by Op. Dr. Osman A. and the wider surgical team. Both happen in the same accredited Istanbul hospitals, under the same safety standards. You can read more about the team on our surgeons page.
Worth knowing: a higher price doesn't automatically mean "more surgery than you need," and a lower one doesn't mean corners are cut. The right procedure is decided medically, first. Cost is then quoted transparently around that decision.
What's included in an itemised quote
SaluVista provides a genuine itemised quote after your assessment. It should let you see exactly what you're paying for, typically covering:
- Surgeon and surgical team fees
- Hospital fees for an accredited facility in Istanbul
- Anaesthesia and operating theatre costs
- Your hospital stay
- Agreed pre- and post-operative care within the package
Ask any provider, including us. Show this breakdown before you commit. A price that's unusually low, with no detail behind it, is worth questioning. It's not a reason for reassurance.
How this compares with the UK
Private bariatric surgery in the UK is typically much higher than SaluVista's Turkey-based pricing. A gastric sleeve privately in the UK usually costs around £8,000–£13,000, and a gastric bypass around £10,000–£15,000, varying by clinic, surgeon and region. The NHS offers weight-loss surgery free at the point of care. But access depends on meeting strict eligibility criteria, and waiting times are often long. Our obesity surgery hub has more detail. It compares the UK NHS, UK private and Turkey pathways.
Where the mini bypass fits
The mini gastric bypass (OAGB) starts from £3,200, sitting between the sleeve and the standard bypass. It achieves a similar goal to a standard bypass, rerouting part of the digestive tract, but generally with one fewer surgical connection, which can mean a somewhat shorter procedure. That choice is medical, not financial. Our guide on sleeve vs bypass: which is right for you walks through the clinical differences in full.
Cost is a real and valid part of your decision. But it should sit alongside the medical answer, not ahead of it. A responsible surgeon will sometimes recommend a different procedure than the one you had in mind, or advise against surgery altogether.
Cost shouldn't be the only factor
It's tempting to let price decide. Especially with a visible gap like this one. But sleeve and bypass exist as separate procedures because they suit different situations. They differ in typical weight-loss pattern, effect on conditions like acid reflux or type 2 diabetes, and how reversible the anatomy change is. Bariatric surgery is a major operation. It's also a lifelong commitment to permanent dietary changes and regular follow-up, whichever option you choose. The International Federation for the Surgery of Obesity (IFSO) is clear on this. Procedure choice should always be individualised to the patient. Weight loss and health outcomes vary from person to person. No procedure or provider can guarantee a specific number on the scale.
Want a real, itemised quote for your case?
Share your BMI, health history and goals. Op. Dr. Osman A.'s team gives you an honest recommendation and a transparent, itemised price, with no obligation.
Get a free assessment →Avoiding hidden costs
Wherever you have surgery, watch for costs that get added on later:
- Ask what "from £X" actually includes before you compare providers. The headline figure means little without the breakdown.
- Check aftercare is built in, not billed separately once you're already committed.
- Budget for lifelong vitamin and mineral supplements after either procedure. This is an ongoing cost, not a one-off.
- Confirm your quote in writing after assessment, before you travel.
Frequently asked questions
Why is a gastric bypass more expensive than a gastric sleeve?
A gastric bypass is a longer, more technically complex operation that reconstructs the digestive tract, not just reduces stomach size. That means more theatre time, a more intricate surgical technique, and typically closer post-operative monitoring — all of which add to the cost compared with a sleeve.
What is included in SaluVista's gastric sleeve and bypass prices?
Our from-prices are a starting guide for a standard case. Your itemised quote, confirmed after assessment, sets out exactly what is included for your case — typically the surgeon and hospital fees, anaesthesia, the hospital stay, and agreed aftercare — so there are no unexplained extras.
Is a mini gastric bypass cheaper than a full gastric bypass?
At SaluVista, mini gastric bypass (OAGB) starts from £3,200, sitting between the gastric sleeve (from £2,500 / $3,365) and the standard gastric bypass (from £3,700 / $4,980). It generally involves one fewer surgical connection than a standard bypass, which can mean a shorter procedure.
How much cheaper is bariatric surgery in Turkey than privately in the UK?
Privately in the UK, a gastric sleeve typically costs around £8,000–£13,000 and a gastric bypass around £10,000–£15,000 — several times SaluVista's Turkey pricing (sleeve from £2,500, bypass from £3,700 / $4,980). The NHS offers weight-loss surgery free at the point of care, but with strict eligibility criteria and often long waiting times.
Does a lower price mean lower quality or safety?
Not with SaluVista. Lower pricing reflects Turkey's cost base, not corners cut on safety. Surgery happens in accredited Istanbul hospitals, and your surgeon reviews your case and speaks with you before you travel.
Can my quote change after I book?
Your quote is confirmed as itemised after your medical assessment, before you commit. If your case needs something additional — for example due to a health condition — your surgeon explains this and any cost implication upfront, not as a surprise after arrival.
This article is general information, not medical advice, and does not replace a consultation with a qualified doctor. Individual results, suitability and pricing vary. Always discuss your options and risks with a medical professional.
Sources & further reading