Aetna vs. Blue Cross Blue Shield (2026 Comparison)


Updated: March 16, 2026

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Aetna vs. Blue Cross Blue Shield: ACA Health Insurance

Blue Cross Blue Shield (BCBS) has ACA marketplace coverage in 36 states, while Aetna stopped selling ACA plans as of January 1, 2026. BCBS sells four plan types, giving you flexibility in how you access care. The insurer earns an average Quality Rating System (QRS) score of 77.72 out of 100 and reports an average claims denial rate of 19%.

Availability
N/A
36 States
Plan Types
N/A
HMO, POS, EPO, PPO
Avg. QRS Score
N/A
77.72
Avg. Denial Rate
N/A
19%

Aetna vs. Blue Cross Blue Shield: Medicare Supplement

Aetna covers 44 states for Medicare Supplement; Blue Cross Blue Shield covers 37. BCBS has all 10 standard plan types; Aetna has seven, with availability varying by state. Both carriers have high-deductible versions of Plans F and G, which trade lower monthly premiums for higher upfront costs before coverage starts.

Availability
44 States
37 States
Plan Types
A, B, C, D, F, G, N
A, B, C, D, F, G, K, L, M, N
High-Deductible F and G
Yes
Yes
Dominant Pricing Style
Attained Age
Attained Age

Aetna vs. Blue Cross Blue Shield: Medicare Advantage

Aetna sells Medicare Advantage plans in 44 states against BCBS's 31. Both cover similar plan types; BCBS adds PFFS options for members who want to see any Medicare-accepting provider. Aetna edges ahead on quality with a 3.88 average CMS star rating versus BCBS's 3.79, and includes enhanced drug coverage as standard where BCBS alternates between basic and enhanced. On cost, 62% of Aetna plans carry $0 monthly premiums compared to 41% for BCBS.

Availability
44 States
31 States
Plan Types
HMO, HMO-POS, PPO
HMO, HMO-POS, PPO, PFFS
Avg. CMS Star Rating
3.88
3.79
Drug Benefits
Enhanced
Basic, Enhanced
% $0 Premium Plans
62%
41%

Bottom Line

Aetna and Blue Cross Blue Shield meet different needs depending on the coverage you’re looking for. BCBS is the only option for ACA marketplace plans since Aetna exited that market in 2026, though premiums tend to run above the national average. For Medicare Supplement coverage, Aetna has lower premiums on popular plans like G and N, while BCBS has greater plan variety with cost-sharing options like Plan K. Aetna also leads in Medicare Advantage with wider availability, more $0 premium plans, and lower out-of-pocket maximums.

BCBS is a strong choice for ACA coverage or Medicare Supplement Plans K, L, or M, but Aetna gives better value for Medicare Advantage and most other Medigap plans.

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About Mark Fitzpatrick


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Mark Fitzpatrick, a Licensed Property and Casualty Insurance Producer, is MoneyGeek's resident Personal Finance Expert. He has analyzed the insurance market for over five years, conducting original research for insurance shoppers. His insights have been featured in CNBC, NBC News and Mashable.

Fitzpatrick holds a master’s degree in economics and international relations from Johns Hopkins University and a bachelor’s degree from Boston College. He's also a five-time Jeopardy champion!

He writes about economics and insurance, breaking down complex topics so people know what they're buying.


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