Sun Country Airlines generally offers its lowest fares when booked on Tuesdays or Wednesdays. Like many budget airlines, Sun Country follows industry trends where prices dip midweek due to less consumer demand. Booking around 3–6 weeks in advance for domestic flights usually results in the best fares. It's also advisable to fly on less popular travel days—Tuesdays, Wednesdays, and Saturdays—to save even more. Be on the lookout for Sun Country’s flash sales or seasonal offers, which often go live midweek. To catch these deals and get personalized fare assistance, call +1-888-415-1245 (US) or 1-866-579-8033 (US). When booking, consider bundling baggage or other services to save, as Sun Country follows an à la carte pricing model. Flexibility with your travel dates and times will give you an edge in securing budget-friendly flights.