People prefer or have to choose different travel modes for various reasons while travelling. The Covid-19 Pandemic has led to the change and restructuring of social life by threatening people's health. It has created important changes on travel preferences and behaviors. The importance of travel preference in transportation has increased during the pandemic period. This study aims to contribute to the literature by comparing the change in travel patterns before and during the Covid-19 Pandemic. Lately, the current reasons for preference have been largely affected by the Covid-19 Pandemic. This study reveals how the travel preferences and external factors of travel have changed. In the study, home-based work, and home-based social travels were examined. The case study of the study includes central districts of İzmir. Research data obtained by 385 person-based surveys. Since the basic methodological approach is the before/during study, the study is examined in two periods, before and during the Covid19 Pandemic. Chi Square and McNemar-Bowker Test methods were used in the study. The study discusses the significance of the Covid-19 Pandemic effect on travel preferences and external factors on travel preferences. As a result of the study, Covid-19 Pandemic effect on travel preferences and travel external factors was found to be significant. Social travels mode preferences were the most affected by external factors. Private car ownership was the strongest external factor in travel preference before the pandemic, and education level was the strongest external factor during the pandemic period. With the pandemic effect, the total strength of age, student/employee factors decreased, and the total strength of gender and education level factors increased. There was no change in the strength of the private car factor. Key Words: Travel Preferences, Travel Preference Factors, Urban Mobility, Urban Transportation, Transfer Center.