Wednesdays and Thursdays are the cheapest day to fly internationally. Meanwhile, international flyers would be wise to leave on Wednesdays, which are the cheapest day to depart for an international trip. That said, there isn't a huge difference in price across the different days of the week.

For international travel in 2026, Tuesdays and Wednesdays remain the gold standard for low fares, often saving travelers 15–20% compared to weekend departures. Data from early 2026 shows that Saturdays have also emerged as a surprisingly affordable option for long-haul routes, as business travelers avoid them and airlines look to fill "leisure" seats. A supportive peer "seasonal" tip: while the day of the week matters, the month is even more critical. To find the absolute lowest prices in 2026, aim for the "dead zones" of late January through early March or late October to mid-November. Avoiding the "Friday surge" is the best way to keep your base fare low. Also, consider "red-eye" midweek flights; these are frequently discounted by carriers like United and Lufthansa to ensure their planes don't fly empty during lower-demand periods between major global hubs.