How long does it take to fly to Duluth?

If you’re flying from a popular airport in State of Washington, such as Seattle or Spokane, and flying into Duluth, then you can expect flight times to average 6h 17m and 7h 30m, respectively.

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

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

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

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

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

As of December 2025, there are 2 operators available to choose from for flights from Washington to Duluth Intl Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Duluth Intl Airport.

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

The necessary travel and health documents for your Duluth Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$164 Cheap Flights from Washington to Duluth in 2025/26

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Find the cheapest flights from Washington to Duluth

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Cheap round-trip flights

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3:35 pm - 11:52 pm

SEA

DLH

6h 17m1 stop

4:24 pm - 8:46 pm

DLH

SEA

6h 22m1 stop

$258Delta

Wed, Jan 7 - Wed, Jan 14

10:58 am - 9:59 pm

SEA

DLH

9h 01m1 stop

3:05 pm - 12:59 am

DLH

SEA

11h 54m2 stops

$274United Airlines

Wed, Jan 7 - Wed, Jan 14

8:40 am - 9:59 pm

SEA

DLH

11h 19m2 stops

3:05 pm - 12:59 am

DLH

SEA

11h 54m2 stops

$279United Airlines

Wed, Jan 7 - Wed, Jan 14

1:53 pm - 11:52 pm

PDX

DLH

7h 59m1 stop

11:56 am - 5:35 pm

DLH

PDX

7h 39m1 stop

$312Delta

Thu, Jan 8 - Wed, Jan 21

7:10 am - 7:35 pm

PDX

DLH

10h 25m2 stops

4:24 pm - 8:32 pm

DLH

PDX

6h 08m1 stop

$318Delta

Thu, Jan 8 - Sat, Jan 24

1:30 pm - 11:52 pm

PDX

DLH

8h 22m2 stops

11:56 am - 8:50 pm

DLH

PDX

10h 54m2 stops

$323Delta

Thu, Jan 8 - Sat, Jan 24

1:30 pm - 11:52 pm

PDX

DLH

8h 22m2 stops

4:24 pm - 12:17 am

DLH

PDX

9h 53m2 stops

$351Delta

Thu, Jan 8 - Wed, Jan 21

8:10 am - 9:59 pm

SEA

DLH

11h 49m2 stops

11:20 am - 8:56 pm

DLH

SEA

11h 36m2 stops

$420United Airlines

Wed, Feb 11 - Tue, Feb 17

7:10 am - 7:35 pm

PDX

DLH

10h 25m2 stops

4:24 pm - 8:32 pm

DLH

PDX

6h 08m1 stop

$422Delta

Thu, Jan 8 - Wed, Jan 21

7:10 am - 7:35 pm

PDX

DLH

10h 25m2 stops

11:56 am - 8:40 pm

DLH

PDX

10h 44m2 stops

$427Delta

Thu, Jan 8 - Wed, Jan 21

Delta flights from State of Washington to Duluth

Our best Delta deals on State of Washington to Duluth flight tickets

Delta

Jan 7

SEA3:35 pmSeattle/Tacoma Intl

6h 17m

1 stop

DLH11:52 pmDuluth Intl

Jan 14

DLH4:24 pmDuluth Intl

6h 22m

1 stop

SEA8:46 pmSeattle/Tacoma Intl

$258

Find similar

Delta

Jan 8

SEA6:05 amSeattle/Tacoma Intl

7h 39m

1 stop

DLH3:44 pmDuluth Intl

Jan 21

DLH4:24 pmDuluth Intl

6h 22m

1 stop

SEA8:46 pmSeattle/Tacoma Intl

$268

Find similar

Delta

Jan 8

PDX1:53 pmPortland

7h 59m

1 stop

DLH11:52 pmDuluth Intl

Jan 21

DLH11:56 amDuluth Intl

7h 39m

1 stop

PDX5:35 pmPortland

$312

Find similar

United Airlines flights from State of Washington to Duluth

Our best United Airlines deals on State of Washington to Duluth flight tickets

United Airlines

Jan 7

SEA10:58 amSeattle/Tacoma Intl

9h 01m

1 stop

DLH9:59 pmDuluth Intl

Jan 14

DLH3:05 pmDuluth Intl

11h 54m

2 stops

SEA12:59 amSeattle/Tacoma Intl

$274

Find similar

United Airlines

Jan 7

SEA8:40 amSeattle/Tacoma Intl

11h 19m

2 stops

DLH9:59 pmDuluth Intl

Jan 14

DLH3:05 pmDuluth Intl

11h 54m

2 stops

SEA12:59 amSeattle/Tacoma Intl

$279

Find similar

United Airlines

Jan 8

SEA9:00 amSeattle/Tacoma Intl

10h 59m

2 stops

DLH9:59 pmDuluth Intl

Jan 21

DLH3:05 pmDuluth Intl

11h 54m

2 stops

SEA12:59 amSeattle/Tacoma Intl

$347

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleDuluth

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Wed 1/7

3:35 pm-11:52 pm

1 stop6h 17m

Duluth Intl

Wed 1/14

4:24 pm-8:46 pm

1 stop6h 22m

$258

SeattleDuluth

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Wed 1/7

10:58 am-9:59 pm

1 stop9h 01m

Duluth Intl

Wed 1/14

3:05 pm-12:59 am

2 stops11h 54m

$274

SeattleDuluth

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Wed 1/7

8:40 am-9:59 pm

2 stops11h 19m

Duluth Intl

Wed 1/14

3:05 pm-12:59 am

2 stops11h 54m

$279

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 1/8

1:53 pm-11:52 pm

1 stop7h 59m

Duluth Intl

Wed 1/21

11:56 am-5:35 pm

1 stop7h 39m

$312

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 1/8

7:10 am-7:35 pm

2 stops10h 25m

Duluth Intl

Sat 1/24

4:24 pm-8:32 pm

1 stop6h 08m

$318

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 1/8

1:30 pm-11:52 pm

2 stops8h 22m

Duluth Intl

Sat 1/24

11:56 am-8:50 pm

2 stops10h 54m

$323

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 1/8

1:30 pm-11:52 pm

2 stops8h 22m

Duluth Intl

Wed 1/21

4:24 pm-12:17 am

2 stops9h 53m

$351

SeattleDuluth

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Wed 2/11

8:10 am-9:59 pm

2 stops11h 49m

Duluth Intl

Tue 2/17

11:20 am-8:56 pm

2 stops11h 36m

$420

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 1/8

7:10 am-7:35 pm

2 stops10h 25m

Duluth Intl

Wed 1/21

4:24 pm-8:32 pm

1 stop6h 08m

$422

PortlandDuluth

PDX - DLH

PDXDLH

Portland

Thu 1/8

7:10 am-7:35 pm

2 stops10h 25m

Duluth Intl

Wed 1/21

11:56 am-8:40 pm

2 stops10h 44m

$427

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington 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

Other information

What is the cheapest month to fly to Duluth?

The cheapest month to fly to Duluth from State of Washington is in March. Flight prices, which tend to average around $295, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of March, then book flights to Duluth from State of Washington during January instead. Flights to Duluth in January, while not as cheap as those in March, still average around $308.

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

The cheapest day to depart from State of Washington to Duluth is on a Wednesday when prices can be found for as low as $438. On the other hand, Friday is the most expensive day to depart from State of Washington because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $698.

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

Flying to Duluth from State of Washington in the morning is the least expensive time of day to depart. momondo users have found prices as low as $428 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Duluth is at noon when prices are around $677.

Can stopping save me money on State of Washington to Duluth flights?

You could potentially save up to 75% on your flight if you consider stops on a State of Washington to Duluth flight.

Cheap State of Washington to Duluth flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Duluth

Fastest flight time	4h 43m
Direct flights	None

The fastest flight from State of Washington to Duluth takes 4h 43m

There are no direct flights from State of Washington to Duluth. There are no popular flight routes from State of Washington to Duluth.

Search flight deals

When did momondo last update prices for flights from Washington to Duluth Intl Airport?
Prices for flights from Washington to Duluth Intl Airport refresh daily.
How many operators does momondo search for flights from Washington to Duluth Intl Airport?
As of December 2025, there are 2 operators available to choose from for flights from Washington to Duluth Intl Airport.
How old do you have to be to fly from Washington to Duluth Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Duluth Intl Airport.
What documentation or ID do you need to fly to Duluth Intl Airport?
The necessary travel and health documents for your Duluth Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Duluth

Compare and see reviews for airlines that fly from State of Washington to Duluth with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $258	Free Cancellation	Rating 7.9 8,007 reviews		Search Delta flights
United Airlines	PriceFrom $301	Free Cancellation	Rating 7.4 9,095 reviews		Search United Airlines flights

Two Harbors

Hayward

Superior

Cloquet

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Duluth from Washington.

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

momondo does allow users to show only those flights to Duluth from Washington which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Washington to Duluth flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Washington to Duluth flights. All you need is a valid email address and we will do the rest; it is that quick and easy.