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$265+ Cheap flights from Portland, ME to Duluth (PWM - DLH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DLH
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Portland to Duluth

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Duluth (DLH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$297
(Delta)

One-way from

$265
(Delta)

Popular in

May

Cheapest in

January

Average price

$573
From Portland to Duluth Intl
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One-way flight from Portland to Duluth Intl
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Highest demand for flights based on searches. 12% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Portland to Duluth

Cheapest flights from Portland to Duluth
Explore the most affordable flight options available from Portland to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3011:28 amPWM - DLH
2 stops29h 11mDelta
Wed 9/35:10 amDLH - PWM
1 stop4h 32mDelta
Deal found 7/2$297
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/305:02 pmPWM - DLH
1 stop6h 03mUnited Airlines
Wed 9/33:10 pmDLH - PWM
1 stop5h 49mUnited Airlines
Deal found 7/1$439

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to Duluth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Portland to Duluth that are best for you.

Fly from

Portland

Fly to

Duluth

Route

Depart

Return

Price

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Sat 8/30

11:28 am-3:39 pm

2 stops29h 11m

Duluth Intl

Wed 9/3

5:10 am-10:42 am

1 stop4h 32m

$297

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Sat 8/30

5:02 pm-10:05 pm

1 stop6h 03m

Duluth Intl

Wed 9/3

3:10 pm-9:59 pm

1 stop5h 49m

$439

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Tue 9/2

11:48 am-3:39 pm

1 stop4h 51m

$265

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Tue 9/2

2:14 pm-10:05 pm

2 stops8h 51m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Portland to Duluth

Have a flexible travel schedule? Discover the best time to fly to Duluth from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Duluth

What is the cheapest month to book a flight from Portland, Maine to Duluth?

Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Duluth (average of $335). Flying from Portland, Maine to Duluth in June is currently the most expensive (average of $475). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Duluth

Get insights into the airlines that provide service to Duluth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Duluth. Reviews last updated July 3, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Portland to Duluth. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Portland to Duluth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Portland, Maine to Duluth round-trip?

    Our cheapest airline available from Portland, Maine to Duluth is Delta. Our recent data shows that you can find tickets from as low as $297 on this airline. An additional option worth looking into is United Airlines, starting at $439. Delta is priced at 41% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Portland to Duluth that include hotel bookings?

    Yes. In addition to deals on Portland to Duluth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Duluth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Duluth.

  • Can I find deals for business class flights from Portland to Duluth?

    Yes. Cheapflights offers flight deals from Portland to Duluth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Duluth?

    Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Duluth (average of $335). Flying from Portland, Maine to Duluth in June is currently the most expensive (average of $475). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Two Harbors
Superior

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Top airline flying from Portland to Duluth

Discover the top airline that operate flights from Portland to Duluth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$340Average$653FlexibilityNo cancel feeOn-time69%

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