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Flights from Dubuque to Duluth

We've found these cheap flights for you. You can book one-way or return flight tickets.

      • DBQ 07:15
        14h 44m
        1 stop
        DLH 21:59
        Dubuque - Duluth | Fri, Jan 9 | Denver Air Connection
        DLH 15:05
        26h 50m
        1 stop
        DBQ 17:55
        Duluth - Dubuque | Sun, Jan 11 | United Airlines
        CAD 826 CAD 1,508
        45% OFF
        45% OFF
        CAD 1,508 CAD 826
      • DBQ 07:15
        15h 40m
        1 stop
        DLH 22:55
        Dubuque - Duluth | Mon, Dec 22 | Denver Air Connection
        DLH 07:50
        9h 5m
        1 stop
        DBQ 16:55
        Duluth - Dubuque | Fri, Dec 26 | United Airlines
        CAD 1,343 CAD 1,508
        11% OFF
        11% OFF
        CAD 1,508 CAD 1,343
      • DBQ 13:00
        17h 25m
        1 stop
        DLH Invalid Date
        Dubuque - Duluth | Fri, Dec 12 | Normal Airline
        DLH 15:00
        6h
        Direct
        DBQ 16:00
        Duluth - Dubuque | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights

Displayed flight fares from Dubuque to Duluth are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for Dubuque to Duluth

The distance between Dubuque and Duluth is 507.49 km. Based on Trip.com's data, travel demand peaks in December. The off-season for travel is December.

Cheapest round-trip ticket priceCAD 826
Off-season for travelDecember
Peak season for travelDecember
Flight distance507.49 km

Find the best time to fly from Dubuque to Duluth

The cheapest time for Dubuque to Duluth flights: Jan 4 to Jan 11 — one way flight prices from CAD 826.

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    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Dubuque to Duluth, calculated over the upcoming 10 weeks.

Flight FAQs

  • When is the best time to book flights from Dubuque to Duluth?

    By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Dubuque to Duluth is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Dubuque to Duluth, you can use various tools on Trip.com:
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Duluth travel is around December.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Dubuque to Duluth is December, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Dubuque to Duluth on December 22, 2025 with Denver Air Connection, with prices starting at CAD 1,342.
  • The time difference between Duluth and Dubuque is 0h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.