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$223+ Cheap flights from Portland to Duluth (PDX - 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DLH
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 (PDX) 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 September 16, 2025.

Round-trip from

$304
(Delta)

One-way from

$223
(United Airlines)

Popular in

November

Cheapest in

April

Average price

$612
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. 11% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:20 amPDX - DLH
1 stop7h 10mDelta
Tue 11/412:02 pmDLH - PDX
1 stop7h 25mDelta
Deal found 9/15$304
This Delta deal was found by Cheapflights users on 9/14. 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.
Tue 11/45:30 amPDX - DLH
2 stops11h 47mDelta
Wed 11/1212:01 pmDLH - PDX
2 stops12h 04mDelta
Deal found 9/14$315
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/15:30 amPDX - DLH
2 stops11h 07mUnited Airlines
Sat 10/49:45 amDLH - PDX
2 stops10h 54mUnited Airlines
Deal found 9/16$319
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amPDX - DLH
1 stop7h 44mDelta
Tue 12/912:01 pmDLH - PDX
1 stop7h 43mDelta
Deal found 9/16$326
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/81:55 pmPDX - DLH
1 stop6h 58mDelta
Sun 11/2312:01 pmDLH - PDX
2 stops9h 18mDelta
Deal found 9/16$332
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/1511:59 pmPDX - DLH
1 stop8h 46mUnited Airlines
Tue 11/43:06 pmDLH - PDX
1 stop9h 27mUnited Airlines
Deal found 9/14$333
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/217:35 pmPDX - DLH
2 stops13h 10mUnited Airlines
Tue 11/411:14 amDLH - PDX
2 stops12h 56mUnited Airlines
Deal found 9/15$349
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:20 amPDX - DLH
2 stops10h 53mDelta
Sat 10/44:19 pmDLH - PDX
1 stop6h 37mDelta
Deal found 9/16$368

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 September 16, 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

PDX - DLH

PDXDLH

Portland

Tue 10/21

6:20 am-3:30 pm

1 stop7h 10m

Duluth Intl

Tue 11/4

7:50 am-12:50 pm

1 stop7h 00m

$304

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 11/8

1:55 pm-10:53 pm

1 stop6h 58m

Duluth Intl

Sun 11/23

12:01 pm-5:43 pm

1 stop7h 42m

$304

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Fri 12/5

6:00 am-3:44 pm

1 stop7h 44m

Duluth Intl

Sun 12/14

4:24 pm-8:53 pm

1 stop6h 29m

$304

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Fri 3/6

12:55 am-11:07 am

1 stop8h 12m

Duluth Intl

Wed 3/11

12:00 pm-4:51 pm

1 stop6h 51m

$304

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Mon 10/20

11:59 pm-10:45 am

1 stop8h 46m

$223

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sun 10/19

11:55 pm-10:45 am

2 stops32h 50m

$397

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sun 10/19

10:00 pm-3:30 pm

3 stops39h 30m

$566

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 to Duluth?

Currently, January is the cheapest month in which you can book a flight from Portland to Duluth (average of $339). Flying from Portland 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.

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

Find hourly flight availability from Portland to Duluth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Portland to Duluth, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 43% versus a flight at noon.

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 September 16, 2025.
Read through reviews of airlines operating flights from Portland to Duluth, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.

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 to Duluth?

    There are many flights that can get you from Portland to Duluth in 7h 10m. Fly via Delta to get the fastest option. The distance between Portland and Duluth is about 1446 mi.

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

    Flying on Delta is currently your cheapest option to Duluth, with prices starting at $258. Another option worth looking into is United Airlines, starting at $312 round trip. Delta is priced at 44% 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 to Duluth?

    Currently, January is the cheapest month in which you can book a flight from Portland to Duluth (average of $339). Flying from Portland 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.

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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Alternative routes for Portland to Duluth

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Top 2 airlines flying from Portland to Duluth

Discover the top 2 airlines 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$482FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$312Average$582FlexibilityNo cancel feeOn-time69%

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