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Cheap flights from Portland to Duluth from $278

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Duluth departing on 3/4. 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
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
11:59 pm - 10:43 am
PDX
-
DLH
8h 44m
1 stop
United Airlines Logo
3:07 pm - 10:45 pm
DLH
-
PDX
9h 38m
1 stop
$278United Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
7:57 pm - 10:43 am
PDX
-
DLH
12h 46m
2 stops
United Airlines Logo
3:07 pm - 10:45 pm
DLH
-
PDX
9h 38m
1 stop
$284United Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
7:57 pm - 10:43 am
PDX
-
DLH
12h 46m
2 stops
United Airlines Logo
3:07 pm - 11:00 pm
DLH
-
PDX
9h 53m
2 stops
$324United Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
11:40 pm - 10:35 am
PDX
-
DLH
8h 55m
1 stop
United Airlines Logo
6:10 pm - 11:52 pm
DLH
-
PDX
7h 42m
1 stop
$418United Airlines
Sat, Jul 25 - Thu, Aug 6
Delta Logo
4:55 pm - 11:38 pm
PDX
-
DLH
4h 43m
1 stop
Delta Logo
5:10 am - 10:36 am
DLH
-
PDX
7h 26m
2 stops
$420Delta
Thu, Jul 23 - Mon, Jul 27
Delta Logo
4:55 pm - 11:38 pm
PDX
-
DLH
4h 43m
1 stop
Delta Logo
5:10 am - 10:36 am
DLH
-
PDX
7h 26m
2 stops
$430Delta
Thu, Jul 23 - Mon, Jul 27
United Airlines Logo
11:59 pm - 10:43 am
PDX
-
DLH
8h 44m
1 stop
United Airlines Logo
7:50 am - 3:27 pm
DLH
-
PDX
9h 37m
1 stop
$443United Airlines
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
7:57 pm - 10:43 am
PDX
-
DLH
12h 46m
2 stops
United Airlines Logo
7:50 am - 3:27 pm
DLH
-
PDX
9h 37m
1 stop
$449United Airlines
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
7:57 pm - 10:43 am
PDX
-
DLH
12h 46m
2 stops
United Airlines Logo
7:50 am - 8:43 pm
DLH
-
PDX
14h 53m
2 stops
$454United Airlines
Sat, Feb 21 - Wed, Feb 25
Delta Logo
4:55 pm - 11:38 pm
PDX
-
DLH
4h 43m
1 stop
Delta Logo
5:10 am - 10:36 am
DLH
-
PDX
7h 26m
2 stops
$465Delta
Thu, Jul 23 - Mon, Jul 27

Delta flights from Portland to Duluth

Our best Delta deals on Portland to Duluth flight tickets
Delta
Jul 23
PDX4:55 pmPortland
4h 43m
1 stop
DLH11:38 pmDuluth Intl
Jul 27
DLH5:10 amDuluth Intl
7h 26m
2 stops
PDX10:36 amPortland
$420
Delta
Jul 23
PDX4:55 pmPortland
4h 43m
1 stop
DLH11:38 pmDuluth Intl
Jul 27
DLH5:10 amDuluth Intl
7h 26m
2 stops
PDX10:36 amPortland
$430
Delta
Jul 23
PDX4:55 pmPortland
4h 43m
1 stop
DLH11:38 pmDuluth Intl
Jul 27
DLH5:10 amDuluth Intl
7h 26m
2 stops
PDX10:36 amPortland
$465

United Airlines flights from Portland to Duluth

Our best United Airlines deals on Portland to Duluth flight tickets
United Airlines
Mar 4
PDX11:59 pmPortland
8h 44m
1 stop
DLH10:43 amDuluth Intl
Mar 11
DLH3:07 pmDuluth Intl
9h 38m
1 stop
PDX10:45 pmPortland
$278
United Airlines
Mar 4
PDX7:57 pmPortland
12h 46m
2 stops
DLH10:43 amDuluth Intl
Mar 11
DLH3:07 pmDuluth Intl
9h 38m
1 stop
PDX10:45 pmPortland
$284
United Airlines
Mar 4
PDX7:57 pmPortland
12h 46m
2 stops
DLH10:43 amDuluth Intl
Mar 11
DLH3:07 pmDuluth Intl
9h 53m
2 stops
PDX11:00 pmPortland
$324

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 February 11, 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

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Wed 3/4

11:59 pm-10:43 am

1 stop8h 44m

Duluth Intl

Wed 3/11

3:07 pm-10:45 pm

1 stop9h 38m

$278

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Wed 3/4

7:57 pm-10:43 am

2 stops12h 46m

Duluth Intl

Wed 3/11

3:07 pm-10:45 pm

1 stop9h 38m

$284

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Wed 3/4

7:57 pm-10:43 am

2 stops12h 46m

Duluth Intl

Wed 3/11

3:07 pm-11:00 pm

2 stops9h 53m

$324

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 7/25

11:40 pm-10:35 am

1 stop8h 55m

Duluth Intl

Thu 8/6

6:10 pm-11:52 pm

1 stop7h 42m

$418

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 7/23

4:55 pm-11:38 pm

1 stop4h 43m

Duluth Intl

Mon 7/27

5:10 am-10:36 am

2 stops7h 26m

$420

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 7/23

4:55 pm-11:38 pm

1 stop4h 43m

Duluth Intl

Mon 7/27

5:10 am-10:36 am

2 stops7h 26m

$430

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 2/21

11:59 pm-10:43 am

1 stop8h 44m

Duluth Intl

Wed 2/25

7:50 am-3:27 pm

1 stop9h 37m

$443

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 2/21

7:57 pm-10:43 am

2 stops12h 46m

Duluth Intl

Wed 2/25

7:50 am-3:27 pm

1 stop9h 37m

$449

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 2/21

7:57 pm-10:43 am

2 stops12h 46m

Duluth Intl

Wed 2/25

7:50 am-8:43 pm

2 stops14h 53m

$454

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 7/23

4:55 pm-11:38 pm

1 stop4h 43m

Duluth Intl

Mon 7/27

5:10 am-10:36 am

2 stops7h 26m

$465

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Duluth from

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

4h 43m

Direct flights

None
The fastest flight from Portland to Duluth takes 4h 43m
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 4h 43m, 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 $263Free CancellationRating
7.9
8,180 reviews
Search Delta flights
United AirlinesPriceFrom $384Free CancellationRating
7.4
9,279 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
Hayward
Superior
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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