Tuesday Is Not a Magic Day to Book Flights
Is Tuesday the cheapest day to fly? The day you book barely matters. The day you fly and how far ahead you book matter more. Here's the data.
The folklore is mostly wrong. The day you book barely matters. The day you fly matters a bit. How far ahead you book matters most. Here is what Google Flights' own fare data says.
- By Nia Adebayo, Chicago, IL
- Source: Google Flights analysis of five years of US fare data, published October 2026
- Updated October 2026
The folklore.
Tuesday is the cheapest day to book. Tuesday at 3pm is the magic hour. Weekends are the most expensive days to fly. You have heard all three.
The third holds up in Google's data. The first barely matters. Nothing in Google's data supports the second.
The day you book.
In Google's October 2026 analysis, Wednesday came out as the cheapest day to buy, not Tuesday. The gap was about 1.4% against Sunday, the most expensive day. On a $400 ticket that is under $6. If you have found a fare you like, don't wait for a particular weekday to buy it.
The day you fly.
This is where the weekday matters. Leaving on a Monday and coming back on a Tuesday or Wednesday saved about 14% compared with weekend flights. For US domestic trips, the saving was up to 20% compared with leaving and returning on a Sunday.
Taking a connection instead of a nonstop helps too. Nonstop tickets averaged 20% more.
How far ahead.
For US domestic flights, average prices bottomed out 39 days before departure, with a low range of 22 to 57 days. For international flights the low point was 89 days out, but the average price drop across the 50-to-133-day range was insignificant, so Google's advice is to book as soon as you can. Trips to Europe followed the same pattern, with the low point around 90 days out. Mexico and the Caribbean bottomed out closer in, at 43 days.
Holidays shift the window. Thanksgiving fares were lowest 34 days out. Christmas fares were lowest 56 days out. Summer trips in July or August were lowest 21 days out.
These are averages across many routes. Your route can behave differently, which is why the next step matters more than any rule.
What to actually do.
Search your exact route and dates. Google Flights tells you whether today's price is low, typical or high compared with the past 12 months for similar flights, and the date grid and price graph show what moving a day or two would save.
Turn on price tracking for the route. If your dates can move, try a Monday departure and a Tuesday or Wednesday return.
When the fare is typical or low and fits your budget, book it. If you book one week or more before departure with an airline flying to, from or within the US, US rules require it to either hold the reservation at the quoted fare without payment or let you cancel without penalty for at least 24 hours after booking.
Five questions, briefly.
- Is Tuesday the cheapest day to book?
- No. Wednesday edged it in Google's latest data, and the gap between the cheapest and most expensive booking days was about 1.4%.
- Is it cheaper to fly midweek?
- Usually. Monday out and Tuesday or Wednesday back saved about 14% over weekend trips on average.
- How far ahead for domestic flights?
- On average, 39 days, with a low range of 22 to 57 days.
- How far ahead for international flights?
- Prices barely moved from 50 to 133 days out, so book as soon as your plans are firm.
- Does clearing cookies help?
- No. A 2014 study that queried 25 airlines twice a day for three weeks found no systematic price discrimination, and a 2021 study found people with an airline's cookie saw exactly the same prices as first-time visitors.