Planning your trip during off-peak months provides the most significant "best day" of the year effect:
Aim to book 15–30 days in advance . Booking in this window can save an average of $130 compared to those who book more than six months out. best day of the year to buy plane tickets
In 2026, the best "day" to buy plane tickets is often less about the calendar date and more about the specific day of the week and your booking window. According to data from the Expedia 2026 Air Hacks Report , has emerged as the best day of the week to book , potentially saving you up to 14% on domestic and 8% on international flights compared to Sundays, which are typically the most expensive. Key Booking Windows for 2026 Planning your trip during off-peak months provides the
Friday and Tuesday are the best days to depart for domestic flights. According to data from the Expedia 2026 Air
is the overall most affordable month to fly in 2026, with fares roughly 29% lower than in December.
The "sweet spot" is roughly 31–45 days before departure . Waiting until this window can save an average of $190 compared to booking very early (180+ days out).
is the cheapest month specifically for domestic U.S. travel, as demand drops significantly after the holidays.