To save on the cost of your flight from Dubuque to Costa Rica, book at least 17 days before your planned departure. Booking around this time can save you about 5% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $393 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $422.
Flights from Dubuque to Costa Rica lean towards being more expensive in December. Prices are generally better when you fly from Dubuque to Costa Rica in October, with the cheapest ticket starting at $205.