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Flights from Portland to Duluth

Find flight deals from Portland to Duluth for the next 3 months. Book one way flights from NZD 522 or round trip flights from NZD 1,567.

      • PWM 16:10
        7h 45m
        1 stop
        DLH 22:55
        Portland - Duluth | Sun, Dec 21 | United Airlines
        DLH 15:03
        5h 26m
        1 stop
        PWM 21:29
        Duluth - Portland | Thu, Dec 25 | United Airlines
        NZD 1,567 NZD 2,866
        45% OFF
        45% OFF
        NZD 2,866 NZD 1,567
      • PWM 16:10
        7h 45m
        1 stop
        DLH 22:55
        Portland - Duluth | Mon, Dec 22 | United Airlines
        DLH 15:03
        5h 26m
        1 stop
        PWM 21:29
        Duluth - Portland | Sat, Dec 27 | United Airlines
        NZD 2,551 NZD 2,866
        11% OFF
        11% OFF
        NZD 2,866 NZD 2,551
      • PWM 13:00
        17h 25m
        1 stop
        DLH Invalid Date
        Portland - Duluth | Fri, Dec 12 | Normal Airline
        DLH 15:00
        6h
        Nonstop
        PWM 16:00
        Duluth - Portland | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights
      • PWM 16:10
        6h 49m
        1 stop
        DLH 21:59
        Portland - Duluth | Tue, Jan 20 | United Airlines
        NZD 522 NZD 587
        11% OFF
        11% OFF
        NZD 587 NZD 522
      • PWM 16:10
        6h 49m
        1 stop
        DLH 21:59
        Portland - Duluth | Tue, Jan 27 | United Airlines
        NZD 523 NZD 587
        11% OFF
        11% OFF
        NZD 587 NZD 523
      • PWM 13:00
        17h 25m
        1 stop
        DLH Invalid Date
        Portland - Duluth | Fri, Dec 12 | Normal Airline
        Find More Flights
        Find More Flights

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

Flight Info | Portland to Duluth

The distance between Portland and Duluth is approximately 1,743.77 km. Based on Trip.com's data travel demand peaks in November. The off-season for travel is September.

Cheapest one-way flight priceNZD 522
Cheapest return ticket priceNZD 1,567
Off-season for travelSeptember
Peak season for travelNovember
Flight distance1,743.77 km

When is the cheapest time to fly from Portland to Duluth?

The cheapest time for Portland to Duluth flights: Jan 25 to Feb 1 — one way flight prices from NZD 507.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

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

Frequently Asked Questions

  • What are the cheapest flights from Portland to Duluth (PWM-DLH)?

    Based on Trip.com data, United Airlines offers one-way fares as low as NZD 522 on Cheapest nonstop routes (e.g. PWM to DLH on Tue, Jan 20), while United Airlines offers Cheapest nonstop round-trips from NZD 1,567 departing on Sun, Dec 21 and returning on Thu, Dec 25.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Portland 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 Portland to Duluth, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Jan 20, with one-way flights priced at just NZD 522.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
    · 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 November.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Portland to Duluth is September, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Portland to Duluth on December 21, 2025 with United Airlines, with prices starting at NZD 1,566.
  • The time difference between Duluth and Portland is 1h.
  • 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.

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