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$393+ Cheap flights from Duluth to Portland, ME (DLH - PWM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — PWM
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Duluth to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Duluth (DLH) to Portland (PWM). 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 September 11, 2025.

Round-trip from

$393
(United Airlines)

Popular in

December

Cheapest in

June

Average price

$506
From Duluth Intl to Portland
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($131 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Duluth to Portland

Cheapest flights from Duluth to Portland
Explore the most affordable flight options available from Duluth to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/223:07 pmDLH - PWM
1 stop5h 37mUnited Airlines
Sat 10/256:14 amPWM - DLH
1 stop5h 29mUnited Airlines
Deal found 9/10$393

Cheapflights Fare Finder

 
Customize your flight search to find flights from Duluth to Portland 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 September 11, 2025.
Use the filters below to find and compare flights from Duluth to Portland that are best for you.

Fly from

Duluth

Fly to

Portland

Route

Depart

Return

Price

DuluthPortland

DLH - PWM

DLHPWM

Duluth Intl

Wed 10/22

9:45 am-7:41 pm

2 stops8h 56m

Portland

Sat 10/25

6:14 am-10:43 am

1 stop5h 29m

$399

DuluthPortland

DLH - PWM

DLHPWM

Duluth Intl

Wed 3/4

5:10 am-11:05 pm

2 stops16h 55m

Portland

Sat 3/7

6:00 am-10:07 am

2 stops29h 07m

$485

DuluthPortland

DLH - PWM

DLHPWM

Duluth Intl

Wed 3/4

11:26 am-11:17 pm

2 stops10h 51m

Portland

Sat 3/7

6:00 am-10:44 am

1 stop5h 44m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Duluth to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Duluth 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 Duluth to Portland

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

Currently, January is the cheapest month in which you can book a flight from Duluth to Portland, Maine (average of $296). Flying from Duluth to Portland, Maine in July is currently the most expensive (average of $394). 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 Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Delta and United Airlines from Duluth to Portland to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

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 Duluth to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Duluth to Portland, Maine?

    For as low as $399, United Airlines can have you in Portland, Maine from Duluth in 8h 56m. There are 1083 mi between Duluth and Portland, Maine. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Delta, at $224, was found to be the cheapest airline from Duluth to Portland, Maine. An alternate airline flying to your destination would be United Airlines. Users have found that Delta is 56% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Duluth to Portland 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 Duluth to Portland, Maine?

    Currently, January is the cheapest month in which you can book a flight from Duluth to Portland, Maine (average of $296). Flying from Duluth to Portland, Maine in July is currently the most expensive (average of $394). 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
Brunswick
North Conway
Auburn
Conway
Lewiston

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Top 2 airlines flying from Duluth to Portland

Discover the top 2 airlines that operate flights from Duluth to Portland. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$224Average$388FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$358Average$587FlexibilityNo cancel feeOn-time69%

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