Cheapest time to book flights

A flight can be expensive and still available the week before. That is why waiting feels safe until it is a holiday Friday. How far ahead to book the whole trip is a wider question; this page is just the ticket.

Shoulder months (late April to early June, September to October for a lot of the northern hemisphere) cut fares more reliably than any day-of-week trick. That is the same lever as picking the season.

Set a ceiling, watch the fare, and buy when it hits, even if a blog told you to wait until Tuesday. For a long weekend, the hotel in a small town is the piece that disappears first, so the flight can trail it by a few weeks.

Open-jaw tickets, into one city and out of another, often price close to a round trip on a two-city Europe trip, and they save you a backtrack day. After you buy, drop the confirmation onto the trip.

One rule worth knowing: in the US, a ticket bought at least a week out can usually be canceled within 24 hours for a full refund. So buying at your ceiling costs you one night of thinking, since you can still change your mind in the morning. Award tickets are a different game, where the seat is the constraint.

Domestic for a July 4 weekend: start watching in May, buy when the fare hits your ceiling, and do not wait through the third week of June. International for a first-week-of-July departure: the two-to-five-month window is February through May, though holiday weeks go earlier. A price alert plus a ceiling beats a rumor about Tuesdays.

If the town has 200 summer rooms, the hotel is the piece that disappears first, so buy or hold the room before the ticket. That is the same order as booking the whole trip.

Thanksgiving week, Christmas, Chinese New Year, Easter, and school-break Fridays all fill, because the inventory is finite and everyone wants the same days. A fare that looks high in March is often just the fare, and waiting for a drop through a holiday week is how people end up with an expensive ticket and a leftover hotel.

Shoulder months cut more than any day-of-week trick, which means late April, May, September, and October across much of the northern hemisphere. That is the season lever, applied to a ticket.

The other quiet cost is the airport, since a $60 saving on a fare into a field two hours from the city, at 11pm, with one rental desk open, has already been spent. Price the whole door-to-door trip.

And once you have bought, stop looking. Fares move, and watching yours drop $40 after purchase makes nobody happier. The price you chose was the price you were willing to pay.