Cheap Christmas and New Year's Flights 2026

• Dec 25

  Christmas Day 2026, Friday, per the official OPM holiday table

• 51 days

  Google's historical average lowest Christmas fare before departure, within a 32-73 day low range

• 49+ days

  Google's guidance that international fares' average lowest point is 49 or more days out; book early

• 13%

  Average that Monday-Wednesday travel ran below weekend travel in Google's broad dataset

Christmas Day 2026 is Friday, December 25, and New Year’s Day is Friday, January 1, 2027. There is no single set of travel dates that fits every family, so this guide keeps the historical window historical and builds the decision around your route and your travel period, as of August 9, 2026.

When are Christmas and New Year's 2026-27?

Christmas Day 2026 is Friday, December 25, from the official OPM 2026 federal holiday table, and New Year’s Day 2027 is Friday, January 1. Candidate outbound dates run through December 25, while a trip that spans both holidays can return in late December or early January.

That shape matters more than any single date. A trip that ends on December 26 or 27 is a Christmas-only trip with an early return. A trip returning December 28 through January 3 overlaps both holidays. Decide which one you are booking before you compare fares, because those are different itineraries and must be priced separately.

Why one national set of dates fits no trip

The phrase “the best time to book Christmas flights” hides a false premise: that one national set of dates fits every trip. It does not. A route with many workable schedules gives you more alternatives than one with a single acceptable flight, while an international trip has Google’s separate early-booking guidance. Each decision must use its own dates, fare conditions and route signal.

The same caution runs through the site’s booking-window guide, which explains why airfare studies disagree and why every window is a zone to be watching in rather than a date to buy on. For Christmas, apply the historical range to your own route and travel period instead of treating a national average as your plan.

The historical Christmas window, kept historical

Google’s holiday analysis studied average round-trip fares on domestic trips in top U.S. markets over 2021 through 2025, focusing on trips that departed before and returned after Christmas. The result: the average lowest Christmas fare appeared about 51 days before departure, inside a historical low range of roughly 32 to 73 days. A late-December departure places that broad range from about mid-October to late November, and Google’s own translation for Christmas was mid-October through mid-November.

It is worth emphasizing what this is not. This is historical, national guidance, not a promise for Christmas 2026 and not a guarantee for any route. The same dataset noted that Monday-Wednesday travel averaged about 13 percent cheaper than weekend travel, a broad average rather than a holiday-specific rule. Use the 51-day figure as a place to start watching, then let the route’s own price graph and price insights decide the purchase.

There is real risk in quoting the 51-day figure loosely, because people turn it into “book exactly 51 days out.” That is not what the data says. It says that, on average across many routes and years, the lowest fare happened somewhere in the window from about 32 to 73 days before departure. The exact cheapest point shifts with the route, the weeknight mix and how a particular flight sells. The window is where you should be checking in and letting an alert watch, not a single date to set your calendar by.

Domestic versus international timing

Domestic and international Christmas trips need different timing. For U.S. domestic travel, Google’s data is the 51-day average with a 32-73 day range. For international travel, the same dataset found the average lowest point at 49 or more days out and advised booking early — category guidance, not a promise.

The practical consequence is that a fixed international family trip should not wait for the domestic holiday average. International fares had separate early-booking guidance in Google’s dataset, so a family committed to a specific overseas destination should not wait for one exact day from the domestic holiday average. Match the guidance to the category of trip you are actually booking, and never let one national number stand in for both.

Book now versus watch: decision rules

Use a two-branch rule for any Christmas fare.

1. Book now when your dates and route are fixed, the itinerary is international, your acceptable nonstops or schedule options are scarce, a party needs adjacent seats, or a price insight says the fare is likely to rise.
2. Watch with alerts when you are outside the historical window, can be flexible by a day or an airport, and have acceptable alternatives at a current high fare.
3. Stop waiting when a workable all-in fare meets a ceiling you decided in advance, especially near or inside the historical range. The route signal beats the national average.

For domestic routes, the historical range means mid-October through mid-November is the time to be checking in. For international fixed trips, the earlier guidance means you are more likely to book than to wait. Let a price alert on Google Flights watch specific dates or any dates so you are not refreshing manually.

The ceiling part of the rule matters as much as the timing part. Decide the all-in price at which the trip is worth taking on your specific dates before you search again. When a workable fare meets that ceiling inside the window for a trip you are committed to, the disciplined move is to book rather than wait for a marginally lower number. A flexible trip with a merely acceptable fare is a reason to keep watching; a fixed trip with a fare at its ceiling is a reason to stop.

A date-flexibility grid to test

A useful 2026 grid to test is outbound December 19 through December 25 and return December 26 through January 3. Treat it as a set of dates to compare, not a claim that any cell is cheapest.

The grid deliberately mixes Christmas-only and through-New-Year trips. Varying the return by a day can change the price, so price the pairs rather than fixing a trip length first. The cheapest combination is the one proven on your route, so treat the grid as a menu of tests.

A practical discipline is to price two or three pairs at once and keep the trip length fixed while you move one date, so you are changing a single variable. Compare the outbound December 21 versus December 24 with the same return, then move the return. You will quickly see which side of the trip is doing the price work, and that tells you where your flexibility is worth the most. If the return after New Year's is the lever, a slightly longer trip may be the cheapest Christmas flight in your plan rather than the shortest one.

Christmas Day and New Year's Day as options

Christmas Day and New Year’s Day travel are options to price, not promises. In Google’s broad dataset, Monday through Wednesday travel averaged about 13 percent below weekend travel. That result is not a holiday-day finding and not a guarantee for 2026 or your route, so price December 25 and January 1 explicitly before relying on the saving.

If your plans allow, a departure on December 24 or 25 instead of the weekend, or a return after January 1, expands the combinations you can compare. A lower-priced cell only matters if it still works with your plans. Run the route-specific price check first, and only then decide whether the trade of travel dates is worth it.

Search alerts and the all-in bag and seat cost

Alerts and route insights help you find a good price, but the comparison must be all-in. Scope the same itinerary across carriers: same cabin or fare family, same bag allowance, same seat flexibility and same change or cancel rules. A headline fare on a different fare family is not comparable. This mirrors the guidance in the basic economy versus main cabin guide : the base fare is not the total cost.

Separate tickets add risk. If you buy outbound and return as two one-ways to chase low fares, a change on one side does not move the other, and a checked bag may be paid twice. DOT’s 24-hour penalty-free cancellation or hold applies to tickets bought at least seven days before departure but does not automatically cover agency sales. Count bags and seats in the total, and for a workable definition of a good all-in price on a route, the good price for a flight guide gives a defensible threshold to apply per route.

The all-in rule is easy to state and awkward to follow, because the headline fare is what draws the eye. To force discipline, write the total down including bags and any seat charge on the same line, and compare that number for the identical cabin and bag terms across carriers. A family's checked bags and seat fees can add hundreds of US dollars to a Christmas flight once multiplied across travelers and legs, so the carrier with the lower base fare may not be the cheaper total. Compare the same thing on every sale day, and the mud clears.

Methodology, sources, and limits

The holiday dates trace to the official OPM 2026 federal holiday table, with January 1, 2027 derived from the calendar. The fare window and averages come from Google’s September 2025 holiday airfare analysis of average U.S. round-trip fares from January 2021 through August 2025; those are historical, national figures, not a 2026 forecast and not a route promise. We use TSA’s historical checkpoint table only as evidence that exact dates can be checked historically and do not infer a 2026 volume forecast. The book-versus- watch rules, the date-flex grid and the all-in comparison are editorial judgment and calculation, separated from the sourced numbers. Verify the price for your specific route and dates before you book.