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 $340 on this airline. United Airlines is priced at 31% lower than the current average price of a flight leaving 3 months from now.

What is the cheapest day to fly from Portland, Maine to Duluth?

Travelers seeking maximum savings on their Portland, Maine to Duluth flight should consider departing on Wednesday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Duluth ranges from 0.6 - 3.6 inches per month. August is typically the wettest month, when rainfall can reach 3.6 in. February is typically the driest time to visit Duluth when rainfall is around 0.6 in.

If weather is an important factor for your trip to Duluth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.2 F).

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

Monday flights are generally found to be more expensive for flights from Portland, Maine to Duluth. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Duluth.

What is the cheapest month to fly from Portland, Maine to Duluth?

Flights from Portland, Maine to Duluth lean towards being more expensive in May. Prices are generally better when you fly from Portland, Maine to Duluth in January, with the cheapest ticket starting at $258.

What is the cheapest time of day to fly from PWM to DLH?

When flying from Portland, Maine to Duluth, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 6% versus a flight in the morning.

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.

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Cheap flight deals from Portland to Duluth

Popular in	May
Cheapest in	January
Average price	$398

Highest demand for flights based on searches. 16% potential increase in price ($93 potential increase over avg. RT price).

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Cheapest flight prices on average. 8% potential price decrease ($40 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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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 $337). Flying from Portland, Maine to Duluth in June is currently the most expensive (average of $476). 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

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

8,943 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,943 reviews

United Airlines

7.4

Good

8,943 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

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 $340 on this airline. United Airlines is priced at 31% 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 $337). Flying from Portland, Maine to Duluth in June is currently the most expensive (average of $476). 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.

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Top airline flying from Portland to Duluth

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$340	Average$653	FlexibilityNo cancel fee	On-time69%

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

Find cheap flights from Portland to Duluth with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Duluth

Popular in

Cheapest in

Average price

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.

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?

Reviews of airlines servicing Duluth

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.

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

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

How can I find direct flights from Portland to Duluth?

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

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

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Top airline flying from Portland to Duluth

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