In 2026, June is generally cheaper to fly than July, especially if you travel during the first two weeks of the month. July is considered the absolute peak of the summer travel season globally due to school holidays and major festivities like the Fourth of July in the U.S. and the height of the European summer break. Data for 2026 indicates that airfares in July can be 15% to 25% higher than in early June. To find the best value, travelers are encouraged to look for "shoulder" dates in late May or the very beginning of June. Mid-week departures (Tuesdays and Wednesdays) in June often provide the lowest fares of the summer. By the time July arrives, high demand usually results in fewer "deal" seats, and prices remain consistently high until they begin to dip again in late August or September when students return to school.