December 13, 2025 | 03:59 pm

TEMPO.CO, Jakarta - For years, travel advice insisted that buying airline tickets on a Tuesday was the key to securing the lowest fares.
Today, that old rule is becoming increasingly irrelevant. Airlines have adopted sophisticated, dynamic pricing systems, meaning flight costs can fluctuate multiple times a day depending on demand. In short, there are no longer guaranteed “cheap days” to book your ticket.
Recent data, however, suggests some patterns can still help travelers save. Air Hacks, in partnership with Expedia, analyzed global booking trends and uncovered a new trend: Sunday has emerged as the most cost-effective day to book flights.
While airline prices remain highly fluid, understanding timing, flexibility, and booking strategies can make a noticeable difference.
Here’s what travelers should know:
1. Sunday is Now the Cheapest Day
According to Air Hacks’ report, passengers who book on Sundays can save around 6% on domestic flights and up to 17% on international trips compared with booking on Mondays or Fridays. While savings per ticket may seem modest, they add up for families or groups.
Airlines now prefer dynamic pricing over offering large discounts on specific days, meaning prices can rise or fall regardless of the day of the week.
2. Departure Time and Booking Window Matter
Travel experts from Ski Vertigo emphasize that when you fly and how far in advance you book are often more important than the day you purchase tickets. For most routes, booking one to three months before departure tends to offer the best prices.
Booking too early, such as a year in advance, doesn’t always yield the lowest rates, while last-minute bookings on popular routes can be expensive.
Skyscanner’s latest trend report confirms this pattern, noting that the timing of the booking relative to departure is more predictive of cost than any particular calendar date.
3. Flexibility Pays Off
Flexibility remains crucial for travelers seeking to cut costs. Tools like Google Flights and Skyscanner allow users to view price calendars and set alerts for specific routes.
These features help travelers spot cheaper days and receive notifications when fares drop, providing a more reliable strategy than relying on a traditional “best day” myth.
4. The Tuesday Myth is Outdated
Tiffany Funk, a travel expert, notes that the belief in Tuesday deals stems from an era when airline employees manually updated fares. Modern revenue management systems automatically adjust prices based on purchasing patterns, meaning there’s no advantage to waiting for a specific day.
“If you see a price that suits you, book it immediately,” advises one founder of point.me, an award-winning flight search engine, as reported by Travel+Leisure.
While airline ticket pricing remains complex and unpredictable, Sunday bookings, careful attention to booking windows, and flexibility in travel plans can still help passengers save money—no more waiting for Tuesdays.
Read: 5 Tips for Planning a Stress-Free Vacation in 2026
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