What is the cheapest airline that flies from Portland to Duluth Intl?

Delta and United Airlines are the most popular carriers operating from Portland to Duluth Intl

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?

There is 1 operator available for flights from Portland Airport to Duluth Intl Airport as of July 2025.

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.

$153 Cheap Flights from Portland to Duluth in 2025

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Find the cheapest flights from Portland to Duluth

Round-trip

One-way

Cheap round-trip flights

11:50 am - 10:46 pmPDX-DLH

8h 56m2 stops

7:50 am - 12:41 pmDLH-PDX

6h 51m1 stop

$264Delta

Find Deal

Wed, Sep 3 - Tue, Sep 9

10:15 am - 10:46 pmPDX-DLH

10h 31m2 stops

5:10 am - 12:55 pmDLH-PDX

9h 45m2 stops

$269Delta

Find Deal

Sat, Sep 6 - Tue, Sep 9

5:35 am - 7:21 pmPDX-DLH

11h 46m2 stops

4:19 pm - 8:59 pmDLH-PDX

6h 40m1 stop

$298Delta

Find Deal

Sat, Sep 6 - Wed, Sep 10

6:20 am - 3:39 pmPDX-DLH

7h 19m1 stop

7:50 am - 12:41 pmDLH-PDX

6h 51m1 stop

$313Delta

Find Deal

Sat, Sep 6 - Tue, Sep 9

6:29 am - 7:17 pmPDX-DLH

10h 48m2 stops

12:02 pm - 5:27 pmDLH-PDX

7h 25m1 stop

$319Delta

Find Deal

Tue, Oct 21 - Tue, Nov 4

6:29 am - 7:17 pmPDX-DLH

10h 48m2 stops

8:10 am - 4:12 pmDLH-PDX

10h 02m2 stops

$324Delta

Find Deal

Tue, Oct 21 - Tue, Nov 4

11:59 pm - 10:37 amPDX-DLH

8h 38m1 stop

7:55 am - 4:05 pmDLH-PDX

10h 10m1 stop

$338United Airlines

Find Deal

Thu, Nov 20 - Thu, Nov 27

6:20 am - 3:39 pmPDX-DLH

7h 19m1 stop

4:19 pm - 8:59 pmDLH-PDX

6h 40m1 stop

$347Delta

Find Deal

Sat, Sep 6 - Wed, Sep 10

11:59 pm - 10:45 amPDX-DLH

8h 46m1 stop

11:14 am - 6:40 pmDLH-PDX

9h 26m1 stop

$372United Airlines

Find Deal

Tue, Oct 21 - Tue, Nov 4

6:14 am - 7:21 pmPDX-DLH

11h 07m2 stops

7:50 am - 12:35 pmDLH-PDX

6h 45m1 stop

$383Delta

Find Deal

Tue, Sep 2 - Sat, Sep 13

United Airlines flights from Portland to Duluth

Our best United Airlines deals on Portland to Duluth flight tickets

United Airlines

Nov 20

PDX11:59 pmPortland

8h 38m

1 stop

DLH10:37 amDuluth Intl

Nov 27

DLH7:55 amDuluth Intl

10h 10m

1 stop

PDX4:05 pmPortland

$338

Find similar

United Airlines

Oct 21

PDX11:59 pmPortland

8h 46m

1 stop

DLH10:45 amDuluth Intl

Nov 4

DLH11:14 amDuluth Intl

9h 26m

1 stop

PDX6:40 pmPortland

$372

Find similar

United Airlines

Sep 2

PDX7:00 amPortland

9h 30m

1 stop

DLH6:30 pmDuluth Intl

Sep 13

DLH8:00 amDuluth Intl

9h 25m

1 stop

PDX3:25 pmPortland

$423

Find similar

Delta flights from Portland to Duluth

Our best Delta deals on Portland to Duluth flight tickets

Delta

Sep 3

PDX11:50 amPortland

8h 56m

2 stops

DLH10:46 pmDuluth Intl

Sep 9

DLH7:50 amDuluth Intl

6h 51m

1 stop

PDX12:41 pmPortland

$264

Find similar

Delta

Sep 6

PDX10:15 amPortland

10h 31m

2 stops

DLH10:46 pmDuluth Intl

Sep 9

DLH5:10 amDuluth Intl

9h 45m

2 stops

PDX12:55 pmPortland

$269

Find similar

Delta

Sep 6

PDX5:35 amPortland

11h 46m

2 stops

DLH7:21 pmDuluth Intl

Sep 10

DLH4:19 pmDuluth Intl

6h 40m

1 stop

PDX8:59 pmPortland

$298

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Wed 9/3

11:50 am-10:46 pm

2 stops8h 56m

Duluth Intl

Tue 9/9

7:50 am-12:41 pm

1 stop6h 51m

$264

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 9/6

10:15 am-10:46 pm

2 stops10h 31m

Duluth Intl

Tue 9/9

5:10 am-12:55 pm

2 stops9h 45m

$269

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 9/6

5:35 am-7:21 pm

2 stops11h 46m

Duluth Intl

Wed 9/10

4:19 pm-8:59 pm

1 stop6h 40m

$298

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 9/6

6:20 am-3:39 pm

1 stop7h 19m

Duluth Intl

Tue 9/9

7:50 am-12:41 pm

1 stop6h 51m

$313

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Tue 10/21

6:29 am-7:17 pm

2 stops10h 48m

Duluth Intl

Tue 11/4

12:02 pm-5:27 pm

1 stop7h 25m

$319

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Tue 10/21

6:29 am-7:17 pm

2 stops10h 48m

Duluth Intl

Tue 11/4

8:10 am-4:12 pm

2 stops10h 02m

$324

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 11/20

11:59 pm-10:37 am

1 stop8h 38m

Duluth Intl

Thu 11/27

7:55 am-4:05 pm

1 stop10h 10m

$338

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 9/6

6:20 am-3:39 pm

1 stop7h 19m

Duluth Intl

Wed 9/10

4:19 pm-8:59 pm

1 stop6h 40m

$347

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Tue 10/21

11:59 pm-10:45 am

1 stop8h 46m

Duluth Intl

Tue 11/4

11:14 am-6:40 pm

1 stop9h 26m

$372

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Tue 9/2

6:14 am-7:21 pm

2 stops11h 07m

Duluth Intl

Sat 9/13

7:50 am-12:35 pm

1 stop6h 45m

$383

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Duluth?

The cheapest month to fly to Duluth from Portland is in October. Flight prices, which tend to average around $342, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Duluth from Portland during March instead. Flights to Duluth in March, while not as cheap as those in October, still average around $343.

What is the cheapest day to depart on your flight to Duluth?

The cheapest day to depart from Portland to Duluth is on a Saturday when prices can be found for as low as $364. On the other hand, Thursday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $520.

What is the cheapest time of day to depart on your flight to Duluth?

Flying to Duluth from Portland in the evening is the least expensive time of day to depart. momondo users have found prices as low as $392 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to Duluth is at noon when prices are around $680.

Can stopping save me money on Portland to Duluth flights?

You could potentially save up to 70% 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

Best Price Found	$153
Fastest flight time	6h 58m
Direct flights	None
Airports in Duluth	1 airport

The best one-way flight to Duluth from Portland in the past 72 hours is $153. The best round-trip flight deal from Portland to Duluth found on momondo in the last 72 hours is $264.

The fastest flight from Portland to Duluth takes 6h 58m

There are no direct flights from Portland to Duluth. Popular non-direct route for this connection is Portland Airport - Duluth Intl Airport.

There is 1 airport near Duluth: Duluth Intl (DLH)

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 7h 19m, 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?
There is 1 operator available for flights from Portland Airport to Duluth Intl Airport as of July 2025.
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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Portland to Duluth is Delta (100% of total bookings).

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
Delta	PriceFrom $258	Free Cancellation	Rating 8.0 7,980 reviews		Search Delta flights

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.