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Cheap flights from Portland to Duluth from $223

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Duluth departing on 5/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Portland to Duluth

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:40 pm - 10:43 am
PDX
-
DLH
9h 03m
1 stop
United Airlines Logo
6:25 pm - 12:02 am
DLH
-
PDX
7h 37m
1 stop
$338United Airlines
Fri, Jul 3 - Tue, Jul 7
United Airlines Logo
2:15 pm - 11:27 pm
PDX
-
DLH
7h 12m
1 stop
United Airlines Logo
5:00 am - 11:35 am
DLH
-
PDX
8h 35m
1 stop
$353United Airlines
Fri, Aug 21 - Fri, Aug 28
Delta Logo
6:05 am - 3:52 pm
PDX
-
DLH
7h 47m
1 stop
Delta Logo
4:29 pm - 8:07 pm
DLH
-
PDX
5h 38m
1 stop
$363Delta
Sat, Apr 11 - Sat, Apr 18
Delta Logo
1:49 pm - 10:47 pm
PDX
-
DLH
6h 58m
2 stops
Delta Logo
4:29 pm - 8:07 pm
DLH
-
PDX
5h 38m
1 stop
$369Delta
Sat, Apr 11 - Sat, Apr 18
Delta Logo
1:49 pm - 10:47 pm
PDX
-
DLH
6h 58m
2 stops
Delta Logo
12:47 pm - 9:42 pm
DLH
-
PDX
10h 55m
2 stops
$374Delta
Sat, Apr 11 - Sat, Apr 18
United Airlines Logo
11:59 pm - 10:39 am
PDX
-
DLH
8h 40m
1 stop
United Airlines Logo
11:14 am - 6:45 pm
DLH
-
PDX
9h 31m
1 stop
$382United Airlines
Sat, Apr 25 - Tue, May 5
United Airlines Logo
11:59 pm - 10:39 am
PDX
-
DLH
8h 40m
1 stop
United Airlines Logo
11:14 am - 8:58 pm
DLH
-
PDX
11h 44m
2 stops
$388United Airlines
Sat, Apr 25 - Tue, May 5
United Airlines Logo
7:14 pm - 10:39 am
PDX
-
DLH
13h 25m
2 stops
United Airlines Logo
6:57 pm - 11:59 pm
DLH
-
PDX
7h 02m
1 stop
$394United Airlines
Wed, Apr 8 - Sun, Apr 12
United Airlines Logo
11:59 pm - 10:39 am
PDX
-
DLH
8h 40m
1 stop
United Airlines Logo
5:00 am - 11:37 am
DLH
-
PDX
8h 37m
1 stop
$428United Airlines
Sat, Apr 25 - Tue, May 5
United Airlines Logo
11:15 pm - 2:27 pm
PDX
-
DLH
13h 12m
2 stops
United Airlines Logo
6:44 pm - 11:59 pm
DLH
-
PDX
7h 15m
1 stop
$434United Airlines
Fri, Apr 24 - Fri, May 1

United Airlines flights from Portland to Duluth

Our best United Airlines deals on Portland to Duluth flight tickets
United Airlines
Jul 3
PDX11:40 pmPortland
9h 03m
1 stop
DLH10:43 amDuluth Intl
Jul 7
DLH6:25 pmDuluth Intl
7h 37m
1 stop
PDX12:02 amPortland
$338
United Airlines
Aug 21
PDX2:15 pmPortland
7h 12m
1 stop
DLH11:27 pmDuluth Intl
Aug 28
DLH5:00 amDuluth Intl
8h 35m
1 stop
PDX11:35 amPortland
$353
United Airlines
Apr 25
PDX11:59 pmPortland
8h 40m
1 stop
DLH10:39 amDuluth Intl
May 5
DLH11:14 amDuluth Intl
9h 31m
1 stop
PDX6:45 pmPortland
$382

Delta flights from Portland to Duluth

Our best Delta deals on Portland to Duluth flight tickets
Delta
Apr 11
PDX6:05 amPortland
7h 47m
1 stop
DLH3:52 pmDuluth Intl
Apr 18
DLH4:29 pmDuluth Intl
5h 38m
1 stop
PDX8:07 pmPortland
$363
Delta
Apr 11
PDX1:49 pmPortland
6h 58m
2 stops
DLH10:47 pmDuluth Intl
Apr 18
DLH4:29 pmDuluth Intl
5h 38m
1 stop
PDX8:07 pmPortland
$369
Delta
Apr 11
PDX1:49 pmPortland
6h 58m
2 stops
DLH10:47 pmDuluth Intl
Apr 18
DLH12:47 pmDuluth Intl
10h 55m
2 stops
PDX9:42 pmPortland
$374

momondo 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, momondo users made 832,500 searches. Data last updated March 29, 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

Fri 7/3

11:40 pm-10:43 am

1 stop9h 03m

Duluth Intl

Tue 7/7

6:25 pm-12:02 am

1 stop7h 37m

$338

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Fri 8/21

2:15 pm-11:27 pm

1 stop7h 12m

Duluth Intl

Fri 8/28

5:00 am-11:35 am

1 stop8h 35m

$353

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/11

6:05 am-3:52 pm

1 stop7h 47m

Duluth Intl

Sat 4/18

4:29 pm-8:07 pm

1 stop5h 38m

$363
Quickest round-trip

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/11

1:49 pm-10:47 pm

2 stops6h 58m

Duluth Intl

Sat 4/18

4:29 pm-8:07 pm

1 stop5h 38m

$369

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/11

1:49 pm-10:47 pm

2 stops6h 58m

Duluth Intl

Sat 4/18

12:47 pm-9:42 pm

2 stops10h 55m

$374

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/25

11:59 pm-10:39 am

1 stop8h 40m

Duluth Intl

Tue 5/5

11:14 am-6:45 pm

1 stop9h 31m

$382

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/25

11:59 pm-10:39 am

1 stop8h 40m

Duluth Intl

Tue 5/5

11:14 am-8:58 pm

2 stops11h 44m

$388

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Wed 4/8

7:14 pm-10:39 am

2 stops13h 25m

Duluth Intl

Sun 4/12

6:57 pm-11:59 pm

1 stop7h 02m

$394

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/25

11:59 pm-10:39 am

1 stop8h 40m

Duluth Intl

Tue 5/5

5:00 am-11:37 am

1 stop8h 37m

$428

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Fri 4/24

11:15 pm-2:27 pm

2 stops13h 12m

Duluth Intl

Fri 5/1

6:44 pm-11:59 pm

1 stop7h 15m

$434

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Portland to Duluth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Duluth?

Can stopping save me money on Portland to Duluth flights?

You could potentially save up to 9% on your flight if you consider stops on a Portland to Duluth flight.

When to book flights from Portland to Duluth

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Duluth according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Duluth (PDX to DLH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Duluth

Fastest flight time

5h 50m

Direct flights

None
The fastest flight from Portland to Duluth takes 5h 50m
There are no direct flights from Portland to Duluth. There are no popular flight routes from Portland to Duluth.
Search flight deals

  • How far is Portland to Duluth Intl by plane?

    There are 1455.5 mi between Portland and Duluth Intl. Flights usually cover this in 5h 50m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Portland Airport to Duluth Intl Airport?

    Prices for flights from Portland Airport to Duluth Intl Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Duluth Intl Airport?

  • How old do you have to be to fly from Portland Airport to Duluth Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Duluth Intl Airport.

  • What documentation or ID do you need to fly to Duluth Intl Airport?

    The required travel and health documents for your Duluth Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Duluth Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Portland to Duluth?

Best airlines flying from Portland to Duluth

Compare and see reviews for airlines that fly from Portland to Duluth with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $278Free CancellationRating
7.9
8,359 reviews
Search Delta flights
United AirlinesPriceFrom $318Free CancellationRating
7.4
9,509 reviews
Search United Airlines flights

Traveling to a place near Duluth?

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

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Duluth?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Duluth for you.

Can I find flights from Portland to Duluth with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Duluth from Portland with this policy.

How can momondo help me find flights from Portland to Duluth?

momondo helps you find the best flight between Portland and Duluth by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portland to Duluth right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Duluth, momondo offers a useful price alert feature which will track prices for flights to Duluth from Portland and alert you when they change.

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