https://forums.windowscentral.com/threads/what-day-of-the-week-are-frontier-flights-cheapest.539878/
https://forums.windowscentral.com/threads/what-day-of-the-week-are-frontier-flights-cheapest.539878/
https://forums.windowscentral.com/threads/what-day-of-the-week-are-frontier-flights-cheapest.539878/
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