Friday is now the top choice, potentially saving you around 3% compared to booking on a Sunday. Some reports still show Sunday as a strong contender for international savings.
Sunday is consistently the most expensive day to both book and fly. The best time to book flights for cheap airfare in 2026 best time of week to buy flights
Tuesday and Wednesday remain the cheapest days to actually travel for domestic flights. For international trips, Friday has emerged as a surprisingly affordable departure day. Friday is now the top choice, potentially saving