The cheapest day to book a Delta flight is typically Tuesday or Wednesday, when airlines release deals and mid‑week demand is lower. 
Other strong booking days include Saturdays, offering reduced fares as airlines fill seats ahead of busier travel days. To score the best deal, book 3–6 weeks in advance for domestic travel (2–3 months for international) and use Delta’s Low Fare CalendarThe cheapest day to book a Delta flight is typically Tuesday or Wednesday, when airlines release deals and mid‑week demand is lower. Other strong booking days include Saturdays, offering reduced fares as airlines fill seats ahead of busier travel days. To score the best deal, book 3–6 weeks in advance for domestic travel (2–3 months for international) and use Delta’s Low Fare CalendarThe cheapest day to book a Delta flight is typically Tuesday or Wednesday, when airlines release deals and mid‑week demand is lower. Other strong booking days include Saturdays, offering reduced fares as airlines fill seats ahead of busier travel days. To score the best deal, book 3–6 weeks in advance for domestic travel (2–3 months for international) and use Delta’s Low Fare CalendarThe cheapest day to book a Delta flight is typically Tuesday or Wednesday, when airlines release deals and mid‑week demand is lower. Other strong booking days include Saturdays, offering reduced fares as airlines fill seats ahead of busier travel days. To score the best deal, book 3–6 weeks in advance for domestic travel (2–3 months for international) and use Delta’s Low Fare CalendarThe cheapest day to book a Delta flight is typically Tuesday or Wednesday, when airlines release deals and mid‑week demand is lower. Other strong booking days include Saturdays, offering reduced fares as airlines fill seats ahead of busier travel days. To score the best deal, book 3–6 weeks in advance for domestic travel (2–3 months for international) and use Delta’s Low Fare Calendar
Other strong booking days include Saturdays, offering reduced fares as airlines fill seats ahead of busier travel days. To score the best deal, book 3–6 weeks in advance for domestic travel (2–3 months for international) and use Delta’s Low Fare CalendarThe cheapest day to book a Delta flight is typically Tuesday or Wednesday, when airlines release deals and mid‑week demand is lower. Other strong booking days include Saturdays, offering reduced fares as airlines fill seats ahead of busier travel days. To score the best deal, book 3–6 weeks in advance for domestic travel (2–3 months for international) and use Delta’s Low Fare CalendarThe cheapest day to book a Delta flight is typically Tuesday or Wednesday, when airlines release deals and mid‑week demand is lower. Other strong booking days include Saturdays, offering reduced fares as airlines fill seats ahead of busier travel days. To score the best deal, book 3–6 weeks in advance for domestic travel (2–3 months for international) and use Delta’s Low Fare CalendarThe cheapest day to book a Delta flight is typically Tuesday or Wednesday, when airlines release deals and mid‑week demand is lower. Other strong booking days include Saturdays, offering reduced fares as airlines fill seats ahead of busier travel days. To score the best deal, book 3–6 weeks in advance for domestic travel (2–3 months for international) and use Delta’s Low Fare CalendarThe cheapest day to book a Delta flight is typically Tuesday or Wednesday, when airlines release deals and mid‑week demand is lower. Other strong booking days include Saturdays, offering reduced fares as airlines fill seats ahead of busier travel days. To score the best deal, book 3–6 weeks in advance for domestic travel (2–3 months for international) and use Delta’s Low Fare Calendar