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Duluth

$318+ Cheap flights from Portland to Duluth (PDX - DLH)

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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DLH
Aug 15 — Aug 221
Sat 8/15
Sat 8/22
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 July 16, 2026.

This United Airlines deal was found by Cheapflights users on 7/11. 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 9/1911:02 pm
PDX
-
DLH
1 stop9h 40m
United Airlines
Sat 9/263:10 pm
DLH
-
PDX
1 stop9h 13m
United Airlines
Deal found 7/11$318
This United Airlines deal was found by Cheapflights users on 7/15. 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 8/182:27 pm
PDX
-
DLH
1 stop6h 55m
United Airlines
Sat 8/227:45 am
DLH
-
PDX
2 stops14h 25m
United Airlines
Deal found 7/15$383
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/182:27 pm
PDX
-
DLH
1 stop6h 55m
United Airlines
Fri 8/287:45 am
DLH
-
PDX
2 stops14h 25m
United Airlines
Deal found 7/13$414
This United Airlines deal was found by Cheapflights users on 7/11. 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 11/72:30 pm
PDX
-
DLH
1 stop6h 34m
United Airlines
Wed 11/1111:26 am
DLH
-
PDX
1 stop9h 41m
United Airlines
Deal found 7/11$457
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/182:27 pm
PDX
-
DLH
1 stop6h 55m
United Airlines
Sat 8/297:45 am
DLH
-
PDX
2 stops14h 25m
United Airlines
Deal found 7/13$463
This Delta deal was found by Cheapflights users on 7/13. 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 8/226:00 am
PDX
-
DLH
1 stop11h 44m
Delta
Fri 8/288:18 am
DLH
-
PDX
1 stop7h 20m
Delta
Deal found 7/13$466
This Delta deal was found by Cheapflights users on 7/13. 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 8/1512:35 am
PDX
-
DLH
1 stop20h 06m
Delta
Fri 8/288:18 am
DLH
-
PDX
1 stop7h 20m
Delta
Deal found 7/13$480
This Delta deal was found by Cheapflights users on 7/13. 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 8/226:00 am
PDX
-
DLH
1 stop14h 41m
Delta
Thu 8/274:11 pm
DLH
-
PDX
1 stop6h 06m
Delta
Deal found 7/13$492
This Delta deal was found by Cheapflights users on 7/13. 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 8/195:08 pm
PDX
-
DLH
2 stops20h 23m
Delta
Thu 8/274:11 pm
DLH
-
PDX
1 stop6h 06m
Delta
Deal found 7/13$498

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 July 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$318
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$755
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
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 July 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 July 16, 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

Sat 9/19

5:00 am-5:51 pm

2 stops10h 51m

Duluth Intl

Sat 9/26

3:10 pm-10:23 pm

1 stop9h 13m

$383

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Tue 8/18

2:27 pm-11:22 pm

1 stop6h 55m

Duluth Intl

Sat 8/22

7:45 am-8:10 pm

2 stops14h 25m

$383

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 8/22

2:27 pm-11:22 pm

1 stop6h 55m

Duluth Intl

Wed 8/26

7:45 am-8:10 pm

2 stops14h 25m

$414
Quickest round-trip

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 11/7

2:30 pm-11:04 pm

1 stop6h 34m

Duluth Intl

Wed 11/11

11:26 am-7:07 pm

1 stop9h 41m

$457

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 10/31

7:00 am-5:32 pm

1 stop8h 32m

Duluth Intl

Wed 11/4

7:35 am-8:28 pm

2 stops14h 53m

$463
Cheapest one-way

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 8/22

9:00 am-11:22 pm

2 stops12h 22m

$319

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Tue 8/18

9:00 am-11:22 pm

2 stops12h 22m

$324
Quickest one-way

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sun 8/23

7:16 am-5:34 pm

1 stop8h 18m

$843

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/12

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 July.
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.

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 July 16, 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
8,471 reviews

Entertainment

7.8

Boarding

8.1

Food

7.2

Crew

8.5

Comfort

7.8

Overall

7.8

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
8,471 reviews
Delta
7.8
Good
8,471 reviews

Entertainment

7.8

Boarding

8.1

Food

7.2

Crew

8.5

Comfort

7.8

Overall

7.8

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
9,993 reviews
Delta
7.8
Good
8,471 reviews

Entertainment

7.8

Boarding

8.1

Food

7.2

Crew

8.5

Comfort

7.8

Overall

7.8

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 10h 51m. Fly via United Airlines 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 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 July 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$318Average$543FlexibilityNo cancel feeOn-time69%
DeltaCheapest$325Average$486FlexibilityNo cancel feeOn-timeN/A

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