To save on the cost of your flight from Duluth to Luis Munoz Marin Intl, book at least 19 days before your planned departure. Booking around this time can save you about 7% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $262 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $281.
Flights from Duluth to Luis Munoz Marin Intl lean towards being more expensive in December. Prices are generally better when you fly from Duluth to Luis Munoz Marin Intl in August, with the cheapest ticket starting at $121.