The old “book on Tuesday” advice has been around for decades, but does it still hold in 2026? The short answer: it is mostly a myth, although timing still matters.

• The Tuesday myth: Airlines no longer drop fares on a specific weekday; pricing algorithms update around the clock, so a Tuesday search has no special magic.
• Book 1-3 months ahead: For domestic trips, 1-2 months out is the sweet spot; for international flights, 2-3 months tends to beat last-minute prices.
• Fly midweek: Tuesday, Wednesday, and Saturday departures are usually cheaper than Friday and Sunday because demand is lower.
• Set fare alerts: Instead of gambling on a weekday, use Google Flights or Skyscanner price alerts and buy when the fare actually drops.
• Ignore the incognito trick: Clearing cookies rarely changes prices, so don’t stress about browsing in private mode.

Verdict: stop waiting for Tuesday. Watch fare alerts, choose midweek departures, and book 1-3 months out to get the best deal.