Quick answer: Google Flights data shows Thanksgiving fares are cheapest when booked in October, and Christmas flights hit their sweet spot 56 days out on October 30. Connecting flights average 20 percent less than nonstops, so families who can handle a layover save real money on holiday fares.

Every fall, Google publishes the single most useful piece of holiday travel data: when fares are actually cheapest, based on five years of Google Flights searches. This year’s numbers are out, and for families the message is simple — the clock is already ticking.

Thanksgiving: book in October (that’s now)

Google’s data shows Thanksgiving flights tend to be cheapest when booked in October. Not September, not the week before — October. If your family flies for Thanksgiving, this is your window. Waiting until November is statistically when prices climb.

Christmas: the sweet spot is 56 days out — October 30

For Christmas travel, Google pegs the cheapest booking window at 56 days before departure: October 30. Put it on the calendar. That’s the day to have your Christmas flights locked in, not the day to start looking.

Connecting flights save 20% — but do the kid math

Nonstop tickets cost 20% more on average than connecting itineraries, per Google’s data. For a family of four, that’s real money — on $400 tickets, connections save ~$320 total.

The honest family caveat: a layover with two kids adds 2–3 hours of travel time and a missed-connection risk. Our rule: take the connection when it saves 20%+ and the layover is over an hour; pay for the nonstop on red-eyes, tight holiday schedules, or when the kids are under 6.

Fly Monday, return Tuesday or Wednesday: save ~14%

Departing on a Monday and returning on a Tuesday or Wednesday saves about 14% versus weekend flights — and up to 20% domestically versus Sunday. Sunday returns are the single most expensive pattern in holiday travel.

The problem, of course, is school. Most families can’t pull kids out midweek. Two workarounds:

• The Wednesday-before-Thanksgiving trap: everyone flies Wednesday. If you can swing Tuesday, fares drop.
• Return Saturday instead of Sunday after Christmas week — Saturday returns price closer to weekday levels.

Stop obsessing over which day you click “buy”

Wednesday edged out Tuesday as the cheapest day of the week to book — but the difference is 1.4% versus Sunday, the most expensive day. On a $400 ticket, that’s under $6. Google’s data basically kills the old “book on Tuesday” myth: when you fly matters 10x more than which day you book.

The points-family playbook

Google’s data is about cash fares, but it applies to points too:

• Southwest flyers: Rapid Rewards points prices track cash fares directly. Booking in Google’s cheap windows means fewer points, not just fewer dollars.
• Award seats disappear first. Cash fares are cheapest in October, but saver award space on popular holiday routes is often gone by September. If you’re booking with points or miles, you’re already late — search now.
• Use Google Flights price tracking. Set alerts for your exact holiday dates today. When the price dips into your target range in October, book — cash or points.

The bottom line

Holiday	Book by	Why
Thanksgiving	October (now)	Cheapest booking month per 5 years of data
Christmas	October 30 (56 days out)	The statistical sweet spot

Everything else — connections vs. nonstops, weekday vs. weekend flying — is optimization on top. The main event is the calendar: October is the month you book holiday travel. Don’t let it slip.

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Data: Google Flights, five-year aggregate, published October 5, 2026. Averages — your route will vary. This site may earn a commission from card links — see our affiliate disclosure.