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Is It Really Cheaper to Book Flights on Tuesday? I Checked 4 Datasets
The day you book saves you about 1%. Three other choices save you 10 to 20 times more.
If you book flights for yourself or your family, you’ve probably heard this one: wait until Tuesday, because that’s when fares drop.
So, is it cheaper to book flights on Tuesday? Barely. In Google Flights’ own four-year data, Tuesday was the cheapest day to book, but only 1.3% cheaper than Sunday, the most expensive day. On a ₹60,000 return ticket, that’s about ₹780.
Meanwhile, when you fly and how you fly moved prices by 13% to 22% in the same data.
I compared four sources that actually measured this: Google Flights, Expedia’s 2026 report, a KAYAK experiment I re-analysed myself, and a traveller on Reddit who checked about 31,000 fares. Here’s what they say, where they disagree, and the short checklist I’ll use from now on.
Where did the “book on Tuesday” rule come from?
It wasn’t made up. It just got old.
Before fares were set by software, airlines reviewed sales at the start of the week and loaded new prices. One commenter on Reddit’s r/travel put it like this: management reviewed last week’s sales on Monday, and the new pricing was “available on Tuesday…
