It’s the most wonderful time of the year—and by that, I mean the lazy, late days of summer. New insights from Google also reveal that right now—late August—might also be the best time to start thinking about your holiday travels if you want to get the best flight or hotel deal.

In fact, flight searches for Thanksgiving will spike by 76 percent in September. By October, they’ll increase by a further 95 percent. Book now, and you can pay half as much as one of those procrastinators.

“Research suggests that consumers are more stressed about what they’re paying for flights and hotels than just about any other consumer purchase that they make,” Richard Holden, vice president of Google Travel, told Bloomberg. Buyer’s remorse, he says, is far more common when you’re shopping for an airfare than, say, a flatscreen TV. “People worry that they’ll miss out on a future price drop, so we’ve decided to make our price insights richer—telling consumers whether what they’re paying is a low price, a high one, or a fair one.”

The result isn’t just this handy tool, which uses last year’s prices to predict the rise and fall of airfares across the 25 most popular U.S. routes for Thanksgiving, the winter holidays, and New Year’s. It’s a deluge of new features that will inspire confidence in your future travel purchases, no matter where or when you’re going.

Power users of Google Flights will know that price insights already existed when you looked up tickets. Flights from New York to Paris, for instance, show red and green numbers under each day of the month to contextualize average prices based on the calendar—explaining whether they were above or below the mean. Now, for the first time, there’s a comparable tool for hotel prices.

Type “New York City hotels” into your Google app, and you’ll trigger the engine. (It works for any city in the world, big or small—from Tokyo to Kanazawa.) Then select your dates and your favorite property, and a new feature will pop up. Look for the “compare market prices” button and you’ll be able to see whether current prices are fluctuating and whether they’re low, typical, or high—all based on prices for similarly rated hotels in the same vicinity.

“It’s hard to know whether $300 is a good price for a hotel on a particular night—this gives you a sense based on star ratings, and later we’ll take even more data into account. It’s all about comprehensiveness and transparency,” said Holden.

Ever decided that you want to go to London only to find that, because of a big convention, every hotel is booked and flight prices have skyrocketed? An upgrade to Google’s Explore feature will help prevent that. To find it, pull up Google flights on web or mobile, then click “Explore Destinations.”

It lets you input basic parameters for your next vacation—your home city, how long you want to be away, and what time of year you’d like to travel—before populating a world map with estimated flight prices. Want to head somewhere for Christmas, for instance? Leaving from New York, you’ll find great deals in cities from Barcelona to Amsterdam to Zurich—where today it showed that flights are roughly $175 cheaper than normal.

Green numbers mean you’re getting a relative bargain: 30 percent below the average price or more. Plus, a list of destinations on the left-hand side contextualizes how much you’re saving in each place.

“Three out of five users tell us they’re willing to shift their dates or destinations, so this will help them figure out where to get great value when they’re feeling flexible,” said Holden.

Google’s holiday flight tool represents a gradual expansion toward more personalized, more transparent travel bookings. “This isn’t a brand-new path for us, we’re just making a greater investment in it now—we’ve been seeing yields from consumers who say they find this useful.”

As such, it’s still a work in progress. Holiday flight predictions are currently based only on 2017 numbers, but looking at the last five years, for example, would be more statistically significant. Holden says the company will add more data to the flight and hotel tools to make the “great value” predictions better over time. And as consumer behavior provides a clearer picture of how the tool is being used, more destinations will be added.

“Over time we also want to provide more holistic planning support for the consumer,” said Holden, hinting toward improved destination insights that consider your existing flight and hotel purchases to serve up recommendations for what to do on the ground.

If only he could do the same for your holiday gift list.