Major carrier options for DTW → LOS typically include combinations of Delta (via ATL), KLM (via AMS), Turkish Airlines (via IST), Ethiopian Airlines (via ADD), and Emirates/Qatar via Gulf hubs. Delta offers strong North American connectivity with Delta One and SkyTeam partners; KLM provides efficient European connections through Amsterdam with good schedule options; Turkish Airlines often has competitive pricing and generous baggage allowances on routes to West Africa. Ethiopian Airlines can offer direct connectivity from African hubs like Addis Ababa, shortening intra-Africa segments. When comparing, consider total travel time, baggage policies, seat comfort, and alliance benefits (SkyTeam, Star Alliance, oneworld partnerships). For January, prioritize airlines with robust winter operations and generous rebooking policies.