Flu shot, recombinant (Flublok) cost in Chicago, IL — inpatient
In Chicago-Naperville-Elgin, IL-IN, 14 hospitals list a cash price for flu shot, recombinant, egg-free (Flublok) as an inpatient: from $15.98 to $432.65, with a median of $102.83. The lowest listed price is at Franciscan Health Munster — $86.85 less than the median here. Across Illinois, the median is $102.83 at 18 hospitals.
Cash prices at 14 facilities across 13 cities for code 90673, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Mar 1, 2026 and Apr 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 Chicago-Naperville-Elgin, IL-IN.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Franciscan Health Munster lowest Munster, IN · (219) 922-4200 FLU VACCINE TV2025(9 YR UP)RCMB(PF)135 MCG(45 MCGX3)/0.5 ML IM SYRINGE | $15.98 | $75.00 | $37.50–$196.32 | 79% | — source file |
| Franciscan Health Rensselaer Rensselaer, IN · (219) 866-5141 Riv3 Vaccine No Preserv Im | $16.11 | $45.00 | $11.25–$196.32 | 64% | — source file |
| Franciscan Health Crown Point Crown Point, IN · (219) 757-6100 FLU VACCINE TV2025(9 YR UP)RCMB(PF)135 MCG(45 MCGX3)/0.5 ML IM SYRINGE | $19.35 | $75.00 | $75.00 | 74% | — source file |
| Franciscan Health Dyer Dyer, IN · (219) 865-2141 FLU VACCINE TV2025(9 YR UP)RCMB(PF)135 MCG(45 MCGX3)/0.5 ML IM SYRINGE | $20.25 | $75.00 | $37.50–$196.32 | 73% | — source file |
| Franciscan Health Rensselaer Rensselaer, IN · (219) 866-5141 FLU VACCINE TV2025(9 YR UP)RCMB(PF)135 MCG(45 MCGX3)/0.5 ML IM SYRINGE | $26.85 | $75.00 | $18.75–$196.32 | 64% | — source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Flu Vac Tv(18 Yr+)135 Mcg Im Employee Health | $33.00 | $33.00 | — | — | Apr 1, 2026 source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Pr Riv3 Vaccine Preservative Free For Im Use | $39.00 | $39.00 | — | — | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale Hinsdale, IL · (630) 856-9000 INFLUENZA VAC RECOMB HA (PF) 0.5 ML IM SOSY | $102.83 | $411.31 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks Glendale Heights, IL · (630) 545-8000 INFLUENZA VAC RECOMB HA (PF) 0.5 ML IM SOSY | $102.83 | $411.31 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook Bolingbrook, IL · (630) 312-5000 INFLUENZA VAC RECOMB HA (PF) 0.5 ML IM SOSY | $102.83 | $411.31 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange La Grange, IL · (708) 352-1200 INFLUENZA VAC RECOMB HA (PF) 0.5 ML IM SOSY | $102.83 | $411.31 | — | 75% | Apr 1, 2026 source file |
| Endeavor Health Highland Park Hospital Highland Park, IL INFLUENZA VIRUS VACC TRIVALENT RIV3 PRSR FR IM | $180.00 | $180.00 | — | — | Apr 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 INFLUENZA VIRUS VACC TRIVALENT RIV3 PRSR FR IM | $180.00 | $180.00 | — | — | Apr 1, 2026 source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 INFLUENZA VIRUS VACC TRIVALENT RIV3 PRSR FR IM | $180.00 | $180.00 | — | — | Apr 1, 2026 source file |
| Mercyhealth Hospital & Medical Center - Harvard Harvard, IL · (815) 943-5431 flu vac tv 2025(9 yr up)rcm-PF 135 mcg (45 mcg x 3)/0.5 mL Syrg 0.5 mL Syringe | $432.56 | $576.75 | — | 25% | Mar 1, 2026 source file |
| Mercyhealth Crystal Lake Hospital & Medical Center Crystal Lake, IL · (792) 220-5500 flu vac tv 2025(9 yr up)rcm-PF 135 mcg (45 mcg x 3)/0.5 mL Syrg 0.5 mL Syringe | $432.65 | $576.87 | — | 25% | Mar 1, 2026 source file |
Inpatient: lowest $15.98, median $102.83, highest $432.65 — a 27.1× difference within the same market.
As an outpatient, the same code is billed by 15 facilities here, median $102.83 — that is the price to compare if you are not being admitted.
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 3 it is 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
Flublok is a recombinant flu vaccine made without eggs. The CDC prefers it, the high-dose and the adjuvanted flu shots for people 65 and older.
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, 90472 for each additional one).