GoKawiilGoogle publishes five-year flight pricing data showing ideal booking windows
Google analyzed five years of aggregated Google Flights data and found that domestic fares have historically been cheapest around 39 days before departure, while international fares bottom out near 89 days out, staying low between 50 and 133 days. The company also found holiday-specific patterns: Thanksgiving fares are lowest around 34 days ahead, Christmas around 56 days, and summer trips closer to departure at about 21 days out.
GoKawiil's interpretation of the reporting above, not reported fact.
The data suggests the popular belief that booking on a Tuesday saves money is largely false, with only a 1.4% difference between the cheapest and priciest booking days, according to Google. Instead, Google's figures indicate that choosing weekday travel or connecting flights could save travelers far more—up to 20%—than timing their purchase to a specific day.
- Domestic flights are historically cheapest ~39 days before departure; international ~89 days out.
- Booking on a specific weekday like Tuesday saves only about 1.4%, debunking a common myth.
- Flying on weekdays or taking connecting flights can cut costs by around 20%.
Source: androidauthority.com, 2026-10-05
Published there as: “Want cheaper flights? Google says this is the best time to book one”
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