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Duluth

$352+ 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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DLH
Apr 18 — Apr 251
Sat 4/18
Sat 4/25
1 adult, Economy
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Cheap 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 March 19, 2026.

This United Airlines deal was found by Cheapflights users on 3/15. 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.
Sun 3/296:04 am
PWM
-
DLH
1 stop5h 25m
United Airlines
Tue 4/75:00 am
DLH
-
PWM
1 stop8h 20m
United Airlines
Deal found 3/15$419
This United Airlines deal was found by Cheapflights users on 3/15. 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.
Sun 3/296:04 am
PWM
-
DLH
1 stop5h 25m
United Airlines
Sat 4/411:19 am
DLH
-
PWM
1 stop5h 13m
United Airlines
Deal found 3/15$434
This United Airlines deal was found by Cheapflights users on 3/16. 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.
Tue 4/76:04 am
PWM
-
DLH
1 stop5h 35m
United Airlines
Sun 4/123:08 pm
DLH
-
PWM
1 stop5h 32m
United Airlines
Deal found 3/16$449
This United Airlines deal was found by Cheapflights users on 3/15. 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 5/29:40 am
PWM
-
DLH
1 stop5h 42m
United Airlines
Tue 5/511:14 am
DLH
-
PWM
2 stops11h 15m
United Airlines
Deal found 3/15$454
This United Airlines deal was found by Cheapflights users on 3/15. 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 3/255:45 am
PWM
-
DLH
1 stop5h 58m
United Airlines
Sun 4/57:25 am
DLH
-
PWM
1 stop5h 55m
United Airlines
Deal found 3/15$464
This United Airlines deal was found by Cheapflights users on 3/15. 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 3/255:45 am
PWM
-
DLH
1 stop5h 58m
United Airlines
Tue 4/77:25 am
DLH
-
PWM
2 stops10h 12m
United Airlines
Deal found 3/15$469
This United Airlines deal was found by Cheapflights users on 3/15. 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 3/255:45 am
PWM
-
DLH
1 stop5h 58m
United Airlines
Sat 4/43:08 pm
DLH
-
PWM
1 stop5h 32m
United Airlines
Deal found 3/15$479

Find 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 March 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$419
(United Airlines)

One-way from

$352
(United Airlines)

Popular in

May

Cheapest in

June

Average price

$653
Provider with most accurate pricing for Portland-Duluth Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Duluth Intl flights.
Search Deals
From Portland to Duluth Intl
Search Deals
One-way flight from Portland to Duluth Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 19, 2026.
Use the filters below to find and compare flights from Portland to Duluth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Sun 3/29

6:04 am-10:29 am

1 stop5h 25m

Duluth Intl

Tue 4/7

5:00 am-2:20 pm

1 stop8h 20m

$419
Quickest round-trip

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Tue 4/7

6:04 am-10:39 am

1 stop5h 35m

Duluth Intl

Sun 4/12

3:08 pm-9:40 pm

1 stop5h 32m

$449

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Sat 5/2

9:40 am-2:22 pm

1 stop5h 42m

Duluth Intl

Tue 5/5

11:14 am-11:29 pm

2 stops11h 15m

$454

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Tue 4/14

6:04 am-10:39 am

1 stop5h 35m

Duluth Intl

Fri 4/17

6:57 pm-9:40 pm

1 stop25h 43m

$517
Cheapest one-way
Quickest one-way

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Thu 6/18

6:00 am-10:43 am

1 stop5h 43m

$352

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Sun 6/14

5:15 am-11:08 pm

2 stops18h 53m

$443

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Thu 6/18

12:50 pm-7:26 pm

2 stops7h 36m

$530

PortlandDuluth

PWM - DLH

PWMDLH

Portland

Sun 7/26

6:00 am-11:38 pm

1 stop18h 38m

$627

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Sorted by cheapest first

Compare providers for flights from Portland to Duluth

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Duluth in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland, Maine-Duluth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Duluth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Duluth flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Duluth flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Duluth flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, June is the cheapest month in which you can book a flight from Portland, Maine to Duluth (average of $156). Flying from Portland, Maine to Duluth in February is currently the most expensive (average of $477). 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 March 19, 2026.
Read reviews from past customers who have flown 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.
United Airlines
7.4
Good
9,439 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,439 reviews
United Airlines
7.4
Good
9,439 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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.

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

    A quick flight from Portland, Maine to Duluth can take about 5h 25m. United Airlines provides one of the quickest options available for as low as $419. Airlines will cover a distance of 1083 mi.

  • What is the cheapest airline to fly from Portland, Maine to Duluth round-trip?

    Our cheapest airline available from Portland, Maine to Duluth is United Airlines. Our recent data shows that you can find tickets from as low as $336 on this airline. United Airlines is priced at 29% 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, June is the cheapest month in which you can book a flight from Portland, Maine to Duluth (average of $156). Flying from Portland, Maine to Duluth in February is currently the most expensive (average of $477). 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 Duluth?

Book flights to Duluth 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 March 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$336Average$625FlexibilityNo cancel feeOn-time69%

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