In UK, since 2010 shortages of nurses and policy changes led many health service providers to become more active in recruiting nurses from the European Union Member States. This article analyses the experience of Portuguese nurses working in the English NHS considering the individual and organizational factors that affect the quality and duration of nurses' migration experience, future career plans and expectations. Twenty-seven semi-structured interviews were conducted at the individual, organizational and policy levels in UK with Portuguese nurses and NHS healthcare staff in 2015-16. The results demonstrate that organizational settings, conditions, actors' attitudes and level of support influence nurses' level of commitment to their employer and their overall mobility experience. Professional achievements, professional and personal sources of support made these nurses evaluate their overall mobility experience as positive, even overcoming personal challenges such as homesickness. The results reveal that migration is accomplished through constant interaction between institutions and individual actors at different levels. Understanding the influencing factors as well as the complex and dynamic nature of a professional's decision-making can design more effective retention responses.