Cheapest Health Insurance in Illinois: Affordable Plans for 2026

Illinois's three most affordable providers (Oscar, Molina Healthcare and Cigna) all offer HMO-only plans. And getting below the state Silver average of $715 monthly means accepting in-network-only care. 

Oscar's $204 monthly gap below Blue Cross Blue Shield adds up to $2,448 per year. But Oscar is an HMO: you pay full costs for any out-of-network care.Oscar and Molina differ by just $24 monthly, but Molina's deductibles run higher. Start with Oscar's quote and verify your primary care doctor is in-network. Downstate residents or anyone managing a chronic condition should compare Molina Healthcare, Cigna and Blue Cross Blue Shield instead.

Oscar is Illinois's  cheapest health insurance at $563 monthly. The price gap adds up fast over a year. Oscar costs $204 less each month than Blue Cross Blue Shield's $767 rate, which totals $2,448 in annual savings despite Blue Cross Blue Shield's larger provider network and stronger brand recognition across Illinois. Molina Healthcare and Cigna offer middle-ground options between low monthly prices and broader coverage networks.

* We calculate average monthly rates by taking the rounded average of each provider’s monthly plan rates in Illinois. We calculate average monthly savings by subtracting the statewide average monthly rate from each provider’s average to show how much cheaper they are than the overall state average. Your actual rates will vary based on age, location and chosen plan.

Your cheapest option depends on age and plan type. Molina Healthcare provides lowest prices as teens pay $363 monthly, young adults $408 and adults $509, while Blue Cross Blue Shield charges $587 for POS but $1,078 for PPO. Compare premiums against deductibles and MOOP to find the best health insurance in Illinois.

* Rates shown are averages for silver-tier plans, using the following ages for each group: teens age 18, young adults age 26, adults age 40, seniors age 60. For plan type costs, we used average rates for 40-year-olds. 

Blue Cross Blue Shield's PPO costs $1,078 monthly, nearly double its POS rate of $587 for the same 40-year-old. That $491 monthly gap ($5,892 per year) buys out-of-network flexibility. For most Illinois residents who see doctors inside a major health system's network, that flexibility rarely gets used. The POS structure covers out-of-network care at higher cost-sharing, giving you a safety net without the full PPO premium.

Blue Shield's Bronze plans cost just $389 monthly but require $4,333 deductibles, meaning you pay full price for doctor visits, prescription refills and diagnostic tests until hitting that amount during the year. Molina Healthcare's Gold plans cost $463 monthly with $1,640 deductibles for faster copay access. Usage shifts the math. Two yearly doctor visits make Bronze cheaper, but six visits make Gold better overall. Molina's Silver plans split the difference at $509 monthly. Illinois doesn't offer Platinum coverage.

* Rates shown are the provider's average at the given metal tier for 40-year-olds.   

Enrollees earning 100% to 250% of the Federal Poverty Level who pick Silver plans qualify for reduced deductibles and lower out-of-pocket maximums.

Those benefits don't apply to Bronze or Gold plans. In MoneyGeek's Illinois's rate data, a Silver plan with cost-sharing reductions can outperform Bronze on total annual cost for moderate health care users, even though Bronze has the lower headline premium.

Molina Healthcare holds four of the 10 cheapest Silver HMO plan slots for 40-year-olds in Illinois, with rates from $497 to $525 monthly. Check the following table to find the most affordable health insurance options in Illinois suited to your situation:

Molina's Silver Saver plan at $497 monthly carries a $7,000 deductible, $500 to $1,000 higher than other plans in the table.

Molina's Core 70 at $505 is the same $6,000 deductible as Oscar's cheapest Silver plan at $574. That $69 monthly difference ($828 per year) is the real cost of choosing Oscar over Molina at the same deductible level. For healthy users who rarely hit their deductible, Molina Core 70 is the stronger value.

Finding affordable health insurance gets complicated when you're faced with countless options featuring different premiums, coverage levels and deductibles. Use these steps to identify affordable coverage that covers your health care needs affordably.

Oscar is the right starting point for most Illinois residents in the Chicago metro area who rarely need specialist care. Its $563 monthly average is $204 below Blue Cross Blue Shield for comparable coverage, and its catastrophic plan at $274 monthly gives younger adults a low-cost option most competitors don't match. The higher premium may cost less overall once you factor in deductibles and out-of-pocket costs. The right choice depends on where you live and how often you use health care.   

Get quotes from at least three insurers on Get Covered Illinois and use the subsidy calculator before comparing base premiums. Your after-subsidy cost can change which plan ranks cheapest.

We analyzed rate data from Get Covered Illinois, the state's health insurance marketplace, to find which insurers have the lowest premiums for different demographics.

Our Analysis Approach

We collected plan data for consumers aged 18, 26, 40, 50 and 60, covering the age spectrum from teens through pre-Medicare seniors. We ranked providers by their average monthly premiums for 40-year-olds as our baseline "cheapest overall" category. This age reflects Illinois's median health insurance consumer and gives most shoppers the most relevant comparison.

Age-specific rankings for teens, young adults, adults and seniors use the corresponding ages listed above. This approach shows which insurers have the best rates for your specific age group, since generic "cheapest" rankings may not apply to your situation.

Important Cost Tradeoff

Bronze and Silver plans, which come with the lowest monthly premiums, charge $4,333 to $6,250 deductibles and $8,990 to $10,150 maximum out-of-pocket costs. You'll save every month but pay more when you need care. Compare premiums against potential out-of-pocket expenses based on your expected medical usage.