Flu shot cost in Houston, TX
In Houston-Pasadena-The Woodlands, TX, 4 hospitals list a cash price for flu shot, standard dose, preservative-free, for age 6 months and older: from $15.40 to $33.50, with a median of $16.59. The lowest listed price is at Hsa St. Joseph — $1.19 less than the median here. Across Texas, the median is $27.00 at 51 hospitals.
Cash prices at 4 facilities across 2 cities for code 90656, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 5, 2026 and Sep 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Houston-Pasadena-The Woodlands, TX.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Hsa St. Joseph lowest Houston, TX · (713) 757-1000 INFLU (FLUZONE TRIV) PF 0.5ML | $15.40 | $104.70 | $9.05–$104.70 | 85% | Sep 1, 2026 source file |
| Hsa St. Joseph Houston, TX · (713) 757-1000 INFLU (AFLURIA TRIVAL)PF 0.5ML | $16.58 | $112.80 | $9.75–$112.80 | 85% | Sep 1, 2026 source file |
| Harris Health Houston, TX FLU VACCINE TS 2025-26(6MOS UP)(PF) 45 MCG(15MCG X3)/0.5 ML IM SYRINGE | $16.59 | $35.08 | $8.84–$46.17 | 53% | — source file |
| Harris Health Taub Loop Houston, TX · (713) 873-2000 FLU VACCINE TS 2025-26(6MOS UP)(PF) 45 MCG(15MCG X3)/0.5 ML IM SYRINGE | $16.59 | $35.08 | $8.84–$46.17 | 53% | — source file |
| Harris Health Houston, TX CHG FLU VACCINE TRIVALENT (IIV3) SPLIT/PF 0.5ML 3YRS & OLDER (AFLURIA/FLUVIRIN) | $19.87 | $42.00 | $10.58–$46.17 | 53% | — source file |
| Harris Health Taub Loop Houston, TX · (713) 873-2000 CHG FLU VACCINE TRIVALENT (IIV3) SPLIT/PF 0.5ML 3YRS & OLDER (AFLURIA/FLUVIRIN) | $19.87 | $42.00 | $10.58–$46.17 | 53% | — source file |
| Texas Children's Hospital Houston, TX · (832) 824-1000 influenza seasonal IIV3 0.5 ML Susy 0.5 mL Syringe | $33.50 | $50.00 | $13.50–$47.50 | 33% | Mar 5, 2026 source file |
| Texas Children's Hospital Houston, TX · (832) 824-1000 influenza seasonal IIV3 0.5 ML Susy 0.5 mL Syringe | $33.50 | $50.00 | $13.50–$47.50 | 33% | Mar 5, 2026 source file |
| Texas Children's Hospital Houston, TX · (832) 824-1000 influenza seasonal IIV3 0.5 ML Susy 0.5 mL Syringe | $33.50 | $50.00 | $13.50–$47.50 | 33% | Mar 5, 2026 source file |
Outpatient: lowest $15.40, median $16.59, highest $33.50 — a 2.2× difference within the same market.
As an inpatient, the same code is billed by 3 facilities here, median $16.59. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 4 of 4 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
A standard-dose flu shot protects against the influenza strains expected in the coming season, and the formula changes every year. This code is the preservative-free version given to most people.
What the price covers
The price is for the vaccine dose. Giving the shot is usually a separate line (code 90471 for the first vaccine of the visit); Medicare bills use G0008 instead.