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Duluth

$323+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DLH
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
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 August 1, 2026.

This Delta deal was found by Cheapflights users on 7/28. 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.
Fri 9/43:00 pm
PDX
-
DLH
1 stop5h 41m
Delta
Tue 9/811:43 am
DLH
-
PDX
1 stop7h 48m
Delta
Deal found 7/28$328
This Delta deal was found by Cheapflights users on 7/28. 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.
Thu 8/133:00 pm
PDX
-
DLH
1 stop5h 41m
Delta
Wed 8/194:11 pm
DLH
-
PDX
1 stop6h 06m
Delta
Deal found 7/28$363
This Delta deal was found by Cheapflights users on 7/28. 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.
Fri 9/46:00 am
PDX
-
DLH
1 stop7h 31m
Delta
Wed 9/911:43 am
DLH
-
PDX
1 stop7h 48m
Delta
Deal found 7/28$378
This Delta deal was found by Cheapflights users on 7/29. 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.
Fri 9/411:50 am
PDX
-
DLH
1 stop5h 54m
Delta
Mon 9/74:11 pm
DLH
-
PDX
1 stop6h 06m
Delta
Deal found 7/29$398
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/17:02 am
PDX
-
DLH
1 stop8h 32m
United Airlines
Sat 9/57:45 am
DLH
-
PDX
1 stop10h 11m
United Airlines
Deal found 7/31$418
This Delta deal was found by Cheapflights users on 7/29. 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.
Thu 9/173:00 pm
PDX
-
DLH
1 stop5h 35m
Delta
Mon 9/214:11 pm
DLH
-
PDX
1 stop6h 05m
Delta
Deal found 7/29$438
This United Airlines deal was found by Cheapflights users on 7/30. 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 10/317:00 am
PDX
-
DLH
1 stop8h 38m
United Airlines
Wed 11/411:16 am
DLH
-
PDX
1 stop9h 56m
United Airlines
Deal found 7/30$444
This Delta deal was found by Cheapflights users on 7/28. 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.
Thu 8/133:00 pm
PDX
-
DLH
1 stop5h 41m
Delta
Fri 8/215:15 am
DLH
-
PDX
1 stop7h 26m
Delta
Deal found 7/28$453

Find 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 August 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$328
(Delta)

One-way from

$323
(Delta)

Popular in

June

Cheapest in

January

Average price

$606
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. 28% potential increase in price ($222 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($57 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 1, 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

PDX - DLH

PDXDLH

Portland

Tue 9/1

7:02 am-5:34 pm

1 stop8h 32m

Duluth Intl

Sat 9/5

7:45 am-3:56 pm

1 stop10h 11m

$418
Quickest round-trip

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 9/17

3:00 pm-10:35 pm

1 stop5h 35m

Duluth Intl

Mon 9/21

4:11 pm-8:16 pm

1 stop6h 05m

$438

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 8/13

3:00 pm-10:41 pm

1 stop5h 41m

Duluth Intl

Thu 8/20

11:41 am-5:34 pm

1 stop7h 53m

$453

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 10/1

3:00 pm-10:35 pm

1 stop5h 35m

Duluth Intl

Sun 10/11

5:14 am-10:34 am

1 stop7h 20m

$468

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Fri 8/14

1:30 pm-10:41 pm

1 stop7h 11m

Duluth Intl

Thu 8/20

11:41 am-5:34 pm

1 stop7h 53m

$558

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 8/13

3:00 pm-10:41 pm

1 stop5h 41m

Duluth Intl

Sun 8/23

5:15 am-10:42 am

2 stops7h 27m

$587

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Fri 8/14

10:50 am-11:22 pm

2 stops10h 32m

Duluth Intl

Fri 8/21

3:11 pm-10:52 pm

1 stop9h 41m

$609

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sun 8/16

2:27 pm-11:22 pm

1 stop6h 55m

Duluth Intl

Sat 8/22

7:45 am-5:50 pm

2 stops12h 05m

$660

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Wed 8/12

6:20 am-10:41 pm

2 stops14h 21m

Duluth Intl

Thu 8/20

11:41 am-5:34 pm

1 stop7h 53m

$671

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sun 8/16

1:30 pm-10:41 pm

1 stop7h 11m

Duluth Intl

Sat 8/22

5:15 am-10:39 am

1 stop7h 24m

$672

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

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 August.
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-Duluth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Duluth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Duluth flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-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-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

How much does it cost to fly round-trip from Portland to Duluth?

Airfare is below average for this route at the moment.

Portland to Duluth flights typically cost between $486 and $673 in September.
The cheapest round-trip price found within the last 5 days was $328 on Delta (Sep 4-Sep 8).

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 August 1, 2026.
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
7.8
Good
8,497 reviews

Crew

8.5

Overall

7.8

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Aug 2023

BDL - MSP

The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up
Delta
7.8
Good
8,497 reviews
Delta
7.8
Good
8,497 reviews

Crew

8.5

Overall

7.8

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Aug 2023

BDL - MSP

The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up
United Airlines
7.4
Good
10,062 reviews
Delta
7.8
Good
8,497 reviews

Crew

8.5

Overall

7.8

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Aug 2023

BDL - MSP

The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up

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 5h 35m. Fly via United Airlines or Delta to get the fastest option. The distance between Portland and Duluth is about 1446 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Flying on United Airlines is currently your cheapest option to Duluth, with prices starting at $318. Another option worth looking into is Delta, starting at $325 round trip. United Airlines is priced at 43% 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.

See more FAQs

Traveling to a place near Duluth?

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

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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 August 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$318Average$543FlexibilityNo cancel feeOn-time69%
DeltaCheapest$325Average$486FlexibilityNo cancel feeOn-timeN/A

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