Travelers have found it’s best to book a flight 18 days in advance to save up to 24% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 18 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Key West to Michigan 1-2 weeks in advance for as low as $195, or $259 for flights within the next 24 hours.
Flights from Key West to Michigan lean towards being more expensive in December. Prices are generally better when you fly from Key West to Michigan in April, with the cheapest ticket starting at $35.