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

United Airlines is the most popular carrier 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 are 2 operators available for flights from Portland Airport to Duluth Intl Airport as of December 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.

$178 Cheap Flights from Portland to Duluth in 2025/26

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

Prices are currently typical for flights on this route. Typical prices usually range from $263 to $518. The lowest price recently found on this route was $326.

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Find the cheapest flights from Portland to Duluth

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:40 am - 10:01 pm

PDX

DLH

11h 21m2 stops

11:19 am - 6:34 pm

DLH

PDX

9h 15m1 stop

$326United Airlines

Sat, Apr 18 - Sat, Apr 25

8:30 am - 9:59 pm

PDX

DLH

11h 29m2 stops

3:05 pm - 10:32 pm

DLH

PDX

9h 27m1 stop

$334United Airlines

Fri, Jan 9 - Mon, Jan 12

8:30 am - 9:59 pm

PDX

DLH

11h 29m2 stops

3:05 pm - 12:39 am

DLH

PDX

11h 34m2 stops

$339United Airlines

Fri, Jan 9 - Mon, Jan 12

6:30 am - 8:01 pm

PDX

DLH

11h 31m2 stops

4:30 pm - 8:07 pm

DLH

PDX

5h 37m1 stop

$368Delta

Sat, Apr 18 - Sat, Apr 25

6:30 am - 8:01 pm

PDX

DLH

11h 31m2 stops

5:00 am - 12:08 pm

DLH

PDX

9h 08m2 stops

$373Delta

Sat, Apr 18 - Sat, Apr 25

8:40 am - 10:01 pm

PDX

DLH

11h 21m2 stops

11:19 am - 8:48 pm

DLH

PDX

11h 29m2 stops

$390United Airlines

Sat, Apr 18 - Sat, Apr 25

6:30 am - 8:01 pm

PDX

DLH

11h 31m2 stops

5:00 am - 12:08 pm

DLH

PDX

9h 08m2 stops

$403Delta

Sat, Apr 18 - Sat, Apr 25

8:30 am - 9:59 pm

PDX

DLH

11h 29m2 stops

3:05 pm - 12:39 am

DLH

PDX

11h 34m2 stops

$418United Airlines

Fri, Jan 9 - Tue, Jan 13

11:59 pm - 10:29 am

PDX

DLH

8h 30m1 stop

11:19 am - 6:34 pm

DLH

PDX

9h 15m1 stop

$442United Airlines

Sat, Apr 18 - Sat, Apr 25

6:00 am - 3:50 pm

PDX

DLH

7h 50m1 stop

4:30 pm - 8:07 pm

DLH

PDX

5h 37m1 stop

$478Delta

Sat, Apr 18 - Sat, Apr 25

United Airlines flights from Portland to Duluth

Our best United Airlines deals on Portland to Duluth flight tickets

United Airlines

Apr 18

PDX8:40 amPortland

11h 21m

2 stops

DLH10:01 pmDuluth Intl

Apr 25

DLH11:19 amDuluth Intl

9h 15m

1 stop

PDX6:34 pmPortland

$326

Find similar

United Airlines

Jan 9

PDX8:30 amPortland

11h 29m

2 stops

DLH9:59 pmDuluth Intl

Jan 12

DLH3:05 pmDuluth Intl

9h 27m

1 stop

PDX10:32 pmPortland

$334

Find similar

United Airlines

Jan 9

PDX8:30 amPortland

11h 29m

2 stops

DLH9:59 pmDuluth Intl

Jan 12

DLH3:05 pmDuluth Intl

11h 34m

2 stops

PDX12:39 amPortland

$339

Find similar

Delta flights from Portland to Duluth

Our best Delta deals on Portland to Duluth flight tickets

Delta

Apr 18

PDX6:30 amPortland

11h 31m

2 stops

DLH8:01 pmDuluth Intl

Apr 25

DLH4:30 pmDuluth Intl

5h 37m

1 stop

PDX8:07 pmPortland

$368

Find similar

Delta

Apr 18

PDX6:30 amPortland

11h 31m

2 stops

DLH8:01 pmDuluth Intl

Apr 25

DLH5:00 amDuluth Intl

9h 08m

2 stops

PDX12:08 pmPortland

$373

Find similar

Delta

Apr 18

PDX6:30 amPortland

11h 31m

2 stops

DLH8:01 pmDuluth Intl

Apr 25

DLH5:00 amDuluth Intl

9h 08m

2 stops

PDX12:08 pmPortland

$403

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/18

8:40 am-10:01 pm

2 stops11h 21m

Duluth Intl

Sat 4/25

11:19 am-6:34 pm

1 stop9h 15m

$326

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Fri 1/9

8:30 am-9:59 pm

2 stops11h 29m

Duluth Intl

Mon 1/12

3:05 pm-10:32 pm

1 stop9h 27m

$334

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Fri 1/9

8:30 am-9:59 pm

2 stops11h 29m

Duluth Intl

Mon 1/12

3:05 pm-12:39 am

2 stops11h 34m

$339

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/18

6:30 am-8:01 pm

2 stops11h 31m

Duluth Intl

Sat 4/25

4:30 pm-8:07 pm

1 stop5h 37m

$368

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/18

6:30 am-8:01 pm

2 stops11h 31m

Duluth Intl

Sat 4/25

5:00 am-12:08 pm

2 stops9h 08m

$373

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/18

8:40 am-10:01 pm

2 stops11h 21m

Duluth Intl

Sat 4/25

11:19 am-8:48 pm

2 stops11h 29m

$390

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/18

6:30 am-8:01 pm

2 stops11h 31m

Duluth Intl

Sat 4/25

5:00 am-12:08 pm

2 stops9h 08m

$403

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Fri 1/9

8:30 am-9:59 pm

2 stops11h 29m

Duluth Intl

Tue 1/13

3:05 pm-12:39 am

2 stops11h 34m

$418

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/18

11:59 pm-10:29 am

1 stop8h 30m

Duluth Intl

Sat 4/25

11:19 am-6:34 pm

1 stop9h 15m

$442

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Sat 4/18

6:00 am-3:50 pm

1 stop7h 50m

Duluth Intl

Sat 4/25

4:30 pm-8:07 pm

1 stop5h 37m

$478

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

What is the cheapest month to fly to Duluth?

The cheapest month to fly to Duluth from Portland is in April. Flight prices, which tend to average around $273, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Duluth from Portland during March instead. Flights to Duluth in March, while not as cheap as those in April, 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 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	7h 59m
Direct flights	None

The fastest flight from Portland to Duluth takes 7h 59m

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 7h 59m, 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 are 2 operators available for flights from Portland Airport to Duluth Intl Airport as of December 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 (86% of total bookings). The next most popular airline is United Airlines (14%).

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 $263	Free Cancellation	Rating 7.9 8,018 reviews		Search Delta flights
United Airlines	PriceFrom $384	Free Cancellation	Rating 7.4 9,116 reviews		Search United Airlines 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.