This paper examines the institutional logics of migration policy making at local city level, comparing four Danish municipal approaches. Using a theoretical framework on political opportunity structures, policy frames, and institutional logics, the paper argues that divergences between national and local level can be explained not only as an unsuccessful transposition of nationally formulated policies, but also as an outcome of divergence in alternative and competing policy frames, political rationales, and institutional logics. Investigating factors such as size, economy, and organizational structure, the paper offers three interrelated explanations for divergences between national and local level and between different local approaches. The paper argues that the difference in national and local level political opportunity structures makes a difference; that ideas diffused from outside the national context can inform local-level policy making; and that policies are situated within and adjusted to the broader cultural economy and city branding as part of competition between cities.