Sinus surgery typically costs between $3,000 and $11,000 in the United States, depending on the type of procedure, where it’s performed, and your insurance status. The average total cost for a standard endoscopic sinus surgery encounter is roughly $8,960, which includes both direct expenses (supplies, anesthesia, recovery) and indirect costs like operating room time overhead.
That number can shift significantly based on a few key factors: the specific procedure your surgeon recommends, whether you have it done at a hospital or a standalone surgery center, and how much of the bill your insurance picks up.
Cost by Type of Procedure
Not all sinus surgeries are the same, and the type you need is the single biggest factor in your final bill.
Functional endoscopic sinus surgery (FESS) is the most common approach. The surgeon uses a thin camera and small instruments inserted through the nostrils to open blocked sinus passages. No external incisions are involved. The average total cost per surgical encounter runs about $8,960. Of that, roughly $5,480 is direct cost (the supplies, drugs, and staff time you can point to on a bill) and $3,480 is indirect cost (facility overhead, operating room time allocation, and similar behind-the-scenes expenses). Operating room time alone accounts for about 55% of the total.
Balloon sinuplasty is a less invasive option where a small balloon is inflated inside the sinus opening to widen it. The upfront procedural cost tends to be higher than traditional surgery, largely because the balloon device itself is expensive. Material costs for balloon sinuplasty average around €730 (roughly $790) compared to just €19 for a standard approach. However, when you factor in the full first year after surgery, including recovery time off work and follow-up visits, balloon sinuplasty often comes out cheaper overall. One European study found total one-year costs of about €3,382 for balloon sinuplasty versus €4,546 for traditional surgery, a 26% difference driven mostly by shorter sick leave: patients who had balloon sinuplasty missed significantly less work.
More complex procedures, such as surgery involving multiple sinuses, septum repair done at the same time, or removal of nasal polyps, will push costs toward the higher end of the range because they require more operating room time and supplies.
Where the Money Actually Goes
Understanding the breakdown helps if you’re trying to compare quotes or negotiate. For a typical endoscopic sinus surgery, the cost splits roughly like this:
- Operating room time: About 55% of the total bill. This is the single largest driver, which means anything that extends your time in surgery (more complex anatomy, additional procedures) raises the price substantially.
- Surgical supplies: Around 14.5%, or about $1,296 on average. This includes the instruments, packing materials, and any implants or stents.
- Recovery room care: About 10%, averaging $919.
- Anesthesia: Roughly 10.5% of the total.
- Medications used during surgery: About 5.5%.
- Lab work and pathology: A small slice, around 3% combined.
You’ll typically receive separate bills from the facility, the surgeon, and the anesthesiologist. When comparing prices, make sure you’re looking at a quote that includes all three.
Hospital vs. Surgery Center
Most sinus surgeries today are done on an outpatient basis, meaning you go home the same day. You’ll generally have two options for where: a hospital outpatient department or an ambulatory surgery center (ASC).
Ambulatory surgery centers almost always charge less than hospitals for the same procedure. Hospital outpatient departments carry higher facility fees because of their overhead, staffing ratios, and regulatory costs. The difference can be 30% to 50% or more on the facility portion of your bill alone. If you have a choice and your surgeon operates at both types of facilities, asking for the ASC option is one of the simplest ways to lower your out-of-pocket cost.
What Insurance Typically Covers
Most major insurers cover sinus surgery, but only after you’ve met specific criteria proving it’s medically necessary. The requirements are fairly standardized across carriers. Aetna’s policy is representative: your chronic sinusitis must have been present for at least 12 continuous weeks, and you need to have tried and failed at least one course of antibiotics (typically 5 to 7 days) along with other medical treatments before surgery is approved.
In practice, most ENT doctors will document a trail of failed treatments over several months before submitting for surgical authorization. This usually includes nasal steroid sprays, oral antibiotics, sometimes oral steroids, and a CT scan showing persistent sinus disease. If your surgeon recommends surgery, their office will handle the prior authorization process, but expect it to take a few weeks.
If you have Medicare, Original Medicare generally pays 80% of the approved amount for outpatient sinus surgery. You’re responsible for the remaining 20% coinsurance after meeting your Part B deductible. A Medicare Advantage plan may have different cost-sharing, such as a flat copay, so check your specific plan.
With private insurance, your cost depends on your deductible, coinsurance rate, and out-of-pocket maximum. If you haven’t met your deductible for the year, you could owe several thousand dollars. If you’re close to your out-of-pocket max, you might owe very little. Calling your insurer with the specific procedure codes (your surgeon’s office can provide these) will give you the most accurate estimate.
Costs You Might Not Expect
The surgery itself isn’t the only expense. A pre-operative CT scan of your sinuses is required for surgical planning, and these range from $600 to $6,000 depending on where you get them. Freestanding imaging centers are almost always cheaper than hospital-based radiology departments for the same scan. If your insurance has a high deductible, shopping around for imaging alone could save you hundreds of dollars.
Other costs that add up include pre-surgical office visits, post-operative follow-up appointments (typically two to four in the first few weeks), prescription medications for recovery (pain relievers, nasal rinses, sometimes steroids or antibiotics), and potentially nasal packing or stent removal visits. Most of these are modest individually but can total $200 to $500 beyond the surgery bill.
Lost income is another real cost. Recovery from standard endoscopic sinus surgery usually means about a week off work, though some people need longer. Balloon sinuplasty recovery is shorter, often just a day or two. The European study on balloon sinuplasty found that sick leave costs were nearly half those of traditional surgery, averaging €1,456 versus €2,771. If you’re self-employed or don’t have paid leave, this is worth factoring into your decision.
How to Lower Your Out-of-Pocket Cost
If you’re facing a significant bill, several strategies can help. Choosing an ambulatory surgery center over a hospital is the most impactful move. Requesting an itemized bill after surgery lets you catch errors, which are surprisingly common in medical billing. If you’re uninsured, ask the surgeon’s office and facility about cash-pay or self-pay discounts, which can reduce the price by 20% to 40%.
Timing your surgery strategically also matters. If you’ve already spent heavily on medical care earlier in the year and are close to meeting your insurance deductible or out-of-pocket maximum, scheduling surgery later in that same calendar year means your insurer picks up a larger share. Conversely, if you schedule in January before any deductible spending, you’ll bear more of the cost yourself.