It’s optimal to fly from Dubuque to Portland in the morning. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight at noon.
Flights from Dubuque to Portland lean towards being more expensive in March. Prices are generally better when you fly from Dubuque to Portland in October, with the cheapest ticket starting at $204.
Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 86% on the overall cost on flights from Dubuque to Portland.