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Cheap flights from Duluth to Seattle (DLH - SEA) from $259

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
DLH — SEA
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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Cheap flight deals from Duluth to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Duluth (DLH) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 16, 2024.

Popular in

June

Cheapest in

May

Average price

$274

Round-trip from

$247
High demand for flights, 39% potential price rise
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Best time to find cheap flights, 52% potential price drop
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Average for round-trip flights in May 2024
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From Duluth Intl to Seattle/Tacoma Intl
Search Deals

What is the cheapest day to fly round-trip from Duluth to Seattle?

Friday flights are generally found to be more expensive for flights from Duluth to Seattle. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

What is the cheapest month to fly from Duluth to Seattle?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, May can be a great choice for travel to Seattle. Flights to Seattle from Duluth in May are about $570 on average during May, but can be found for as low as $176.

When is the cheapest time to fly from Duluth to Seattle (DLH - SEA)?

When flying from Duluth to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 12% versus a flight in the morning.

Cheap Delta flights from Duluth to Seattle

Explore cheap flight options specifically provided by Delta for the route between Duluth and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Consider these cheap Delta flights we've found departing from Duluth to Seattle. Be sure to come back soon if the deals available don't appeal to you at this time.
Wed 9/252:45 pmDLH - SEA
1 stop7h 21mDelta
Wed 10/94:30 pmSEA - DLH
1 stop5h 18mDelta
Deal found 5/15$326
Wed 9/2510:54 amDLH - SEA
2 stops13h 17mDelta
Tue 10/812:35 amSEA - DLH
1 stop7h 14mDelta
Deal found 5/15$331
Wed 9/2510:54 amDLH - SEA
2 stops11h 06mDelta
Wed 10/910:00 amSEA - DLH
2 stops11h 48mDelta
Deal found 5/15$336
Fri 10/115:50 pmDLH - SEA
1 stop7h 41mDelta
Tue 10/156:30 amSEA - DLH
1 stop5h 10mDelta
Deal found 5/16$346
Fri 10/112:45 pmDLH - SEA
1 stop7h 25mDelta
Tue 10/1511:45 amSEA - DLH
2 stops10h 03mDelta
Deal found 5/16$351
Fri 8/235:50 pmDLH - SEA
1 stop7h 35mDelta
Fri 8/307:59 pmSEA - DLH
2 stops11h 47mDelta
Deal found 5/16$371
Fri 8/235:50 pmDLH - SEA
2 stops8h 07mDelta
Fri 8/307:59 pmSEA - DLH
2 stops11h 47mDelta
Deal found 5/16$376
Wed 10/1610:54 amDLH - SEA
2 stops11h 06mDelta
Sat 10/1912:35 amSEA - DLH
1 stop7h 14mDelta
Deal found 5/16$422
Fri 10/112:45 pmDLH - SEA
2 stops11h 14mDelta
Mon 10/1412:35 amSEA - DLH
1 stop7h 14mDelta
Deal found 5/16$432

Cheap United Airlines flights from Duluth to Seattle

Explore cheap flight options specifically provided by United Airlines for the route between Duluth and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
To aid your search, here are some of the cheapest United Airlines flights we've found from Duluth to Seattle. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Tue 8/138:05 amDLH - SEA
1 stop15h 04mUnited Airlines
Mon 8/1911:59 pmSEA - DLH
1 stop19h 54mUnited Airlines
Deal found 5/15$477
Tue 8/138:05 amDLH - SEA
1 stop15h 04mUnited Airlines
Mon 8/197:45 pmSEA - DLH
2 stops19h 44mUnited Airlines
Deal found 5/15$482
Mon 8/128:05 amDLH - SEA
1 stop15h 04mUnited Airlines
Mon 8/1910:59 pmSEA - DLH
1 stop13h 26mUnited Airlines
Deal found 5/15$507
Mon 8/128:05 amDLH - SEA
1 stop15h 04mUnited Airlines
Mon 8/197:45 pmSEA - DLH
2 stops16h 40mUnited Airlines
Deal found 5/15$512
Fri 8/236:24 pmDLH - SEA
1 stop7h 28mUnited Airlines
Fri 8/302:13 pmSEA - DLH
1 stop18h 26mUnited Airlines
Deal found 5/16$546
Thu 7/411:10 amDLH - SEA
1 stop9h 32mUnited Airlines
Wed 7/1012:30 amSEA - DLH
1 stop8h 02mUnited Airlines
Deal found 5/15$548
Mon 8/128:05 amDLH - SEA
1 stop15h 04mUnited Airlines
Sun 8/1810:59 pmSEA - DLH
1 stop20h 54mUnited Airlines
Deal found 5/15$577
Mon 8/128:05 amDLH - SEA
1 stop15h 04mUnited Airlines
Sat 8/1712:30 amSEA - DLH
1 stop8h 02mUnited Airlines
Deal found 5/15$578
Thu 7/411:10 amDLH - SEA
1 stop9h 32mUnited Airlines
Thu 7/1112:36 pmSEA - DLH
1 stop7h 01mUnited Airlines
Deal found 5/15$604

Cheap Duluth to Seattle flights in May & June 2024

Find cheap flight options from Duluth to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Thu 6/275:20 amDLH - SEA
2 stops12h 41mDelta
Tue 7/29:45 amSEA - DLH
2 stops11h 02mDelta
Deal found 5/15$446
Thu 6/275:44 pmDLH - SEA
1 stop8h 11mDelta
Tue 7/29:45 amSEA - DLH
2 stops11h 02mDelta
Deal found 5/15$492
Thu 6/275:20 amDLH - SEA
2 stops12h 41mDelta
Mon 7/112:25 amSEA - DLH
1 stop7h 52mDelta
Deal found 5/15$612
Thu 6/273:13 pmDLH - SEA
1 stop9h 13mUnited Airlines
Mon 7/112:30 amSEA - DLH
1 stop8h 02mUnited Airlines
Deal found 5/15$617
Tue 6/255:20 amDLH - SEA
1 stop5h 29mDelta
Sun 6/3012:25 amSEA - DLH
1 stop7h 52mDelta
Deal found 5/16$618
Tue 6/255:44 pmDLH - SEA
2 stops8h 15mDelta
Sun 6/3012:25 amSEA - DLH
1 stop7h 52mDelta
Deal found 5/16$623
Thu 6/273:13 pmDLH - SEA
1 stop7h 56mUnited Airlines
Tue 7/25:15 pmSEA - DLH
1 stop19h 17mUnited Airlines
Deal found 5/15$647
Tue 6/258:00 amDLH - SEA
1 stop10h 08mUnited Airlines
Sun 6/3012:30 amSEA - DLH
1 stop19h 07mUnited Airlines
Deal found 5/16$661
Tue 6/258:00 amDLH - SEA
2 stops16h 15mUnited Airlines
Sun 6/3012:30 amSEA - DLH
1 stop19h 07mUnited Airlines
Deal found 5/16$670

Duluth to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Duluth and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Wed 9/252:45 pmDLH - SEA
1 stop7h 21mDelta
Wed 10/94:30 pmSEA - DLH
1 stop5h 18mDelta
Deal found 5/15$326
Wed 9/252:45 pmDLH - SEA
1 stop7h 21mDelta
Wed 10/98:15 pmSEA - DLH
2 stops11h 34mDelta
Deal found 5/15$331
Wed 9/2510:54 amDLH - SEA
2 stops11h 06mDelta
Wed 10/910:00 amSEA - DLH
2 stops11h 48mDelta
Deal found 5/15$336
Fri 10/115:50 pmDLH - SEA
1 stop7h 41mDelta
Tue 10/156:30 amSEA - DLH
1 stop5h 10mDelta
Deal found 5/16$346
Fri 10/112:45 pmDLH - SEA
1 stop7h 25mDelta
Tue 10/1511:45 amSEA - DLH
2 stops10h 03mDelta
Deal found 5/16$351
Fri 8/235:50 pmDLH - SEA
1 stop7h 35mDelta
Fri 8/307:59 pmSEA - DLH
2 stops11h 47mDelta
Deal found 5/16$371
Fri 8/235:50 pmDLH - SEA
2 stops8h 07mDelta
Fri 8/307:59 pmSEA - DLH
2 stops11h 47mDelta
Deal found 5/16$376
Wed 10/1610:54 amDLH - SEA
2 stops11h 06mDelta
Sat 10/1912:35 amSEA - DLH
1 stop7h 14mDelta
Deal found 5/16$422
Fri 10/112:45 pmDLH - SEA
2 stops11h 14mDelta
Mon 10/1412:35 amSEA - DLH
1 stop7h 14mDelta
Deal found 5/15$432

One-way flights to Seattle from Duluth

Search for one-way flight options from Duluth to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a look at some of the one-way flights we've detected from Duluth to Seattle. For those needing a return trip from Duluth, there is a search form available above.
Wed 8/288:00 amDLH - SEA
2 stops17h 00mUnited Airlines
Deal found 5/15$259
Wed 8/283:10 pmDLH - SEA
1 stop9h 12mUnited Airlines
Deal found 5/15$274
Wed 8/283:10 pmDLH - SEA
3 stops22h 36mUnited Airlines
Deal found 5/15$1,074

Find flights from Duluth to Seattle within your budget

Customize your flight search to find flights from Duluth to Seattle 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, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$326 - $507

Route

Depart

Return

Price

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Wed 9/25

1 stop7h 21m

Seattle/Tacoma Intl

Wed 10/9

1 stop5h 18m

$326

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Wed 9/25

2 stops13h 17m

Seattle/Tacoma Intl

Tue 10/8

1 stop7h 14m

$331

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Wed 9/25

2 stops11h 06m

Seattle/Tacoma Intl

Wed 10/9

2 stops11h 48m

$336

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Fri 10/11

1 stop7h 41m

Seattle/Tacoma Intl

Tue 10/15

1 stop5h 10m

$346

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Fri 10/11

1 stop7h 25m

Seattle/Tacoma Intl

Tue 10/15

2 stops10h 03m

$351

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Fri 8/23

1 stop7h 35m

Seattle/Tacoma Intl

Fri 8/30

2 stops11h 47m

$371

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Tue 8/13

1 stop15h 04m

Seattle/Tacoma Intl

Mon 8/19

1 stop19h 54m

$477

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Tue 8/13

1 stop15h 04m

Seattle/Tacoma Intl

Mon 8/19

2 stops19h 44m

$482

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Mon 8/12

1 stop15h 04m

Seattle/Tacoma Intl

Mon 8/19

1 stop13h 26m

$507

Flights are sorted by cheapest first

Deals found on 5/15

When is the cheapest time to fly from Duluth to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Duluth to Seattle. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Duluth to Seattle flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Seattle by month

Plan your trip from Duluth to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from Duluth to Seattle is currently $536 while a round-trip flight costs $392. Price data was last updated on May 12, 2024.

Currently, January is the cheapest month in which you can book a flight from Duluth to Seattle (average of $247). Flying from Duluth to Seattle in July is currently the most expensive (average of $407). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$247

February

$254

March

$288

April

$294

May

$318

June

$404

July

$407

August

$344

September

$278

October

$256

November

$258

December

$248

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

41 - 66.2 °F

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated May 16, 2024.
See what other customers who have flown with Delta and United Airlines from Duluth to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

It was a good experience other than a short delay.

Delta
8.0
Very good
10,673 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

It was a good experience other than a short delay.

United Airlines
7.4
Good
10,924 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

It was a good experience other than a short delay.

Related info for your journey

Find useful and relevant information for your journey from Duluth to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Duluth to Seattle for under $400 on Cheapflights?

    Yes, there are multiple flights from Duluth to Seattle for under $400. The cheapest flight booked recently is on Delta for just $326, but on average you can expect to pay $433.

  • What are the cheapest airlines flying from Duluth to Seattle round-trip?

    Currently priced at $326, Delta will fly you from Duluth to Seattle and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $477. Delta is 42% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most popular airlines that fly from Duluth to Seattle?

    The most popular airlines flying from Duluth to Seattle are Delta, Sun Country Air and United Airlines. Something to consider prior to booking your flight.

  • What does DLH to SEA mean?

    DLH and SEA are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. DLH to SEA refers to a flight route from Duluth Intl Airport to Seattle/Tacoma Intl Airport.

  • Can I find deals for flights from Duluth to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Duluth to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Duluth to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Duluth to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Duluth to Seattle that include hotel bookings?

    Yes. In addition to deals on Duluth to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Duluth to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Duluth to Seattle.

  • Can I find deals for business class flights from Duluth to Seattle?

    Yes. Cheapflights offers flight deals from Duluth to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Duluth to Seattle that allow pets onboard?

    Many airlines flying from Duluth to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Duluth to Seattle?

    Yes, you can often find last-minute deals on Duluth to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Duluth to Seattle flight deals updated?

    The Duluth to Seattle flight deals you see on this page were last updated on 5/16.

See more FAQs

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Alternative routes for Duluth to Seattle
See prices for flight routes from nearby airports that may be better suited for you.

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Top 3 airlines flying from Duluth to Seattle

Discover the top 3 airlines that operate flights from Duluth to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$171Average$352FlexibilityNo cancel feeOn-time83%
Search Sun Country Air flights
DeltaCheapest$274Average$575FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$348Average$692FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Duluth to Seattle by cabin class

Find flights from Duluth to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Duluth to Seattle?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Duluth to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Duluth to Seattle?

Cheapflights simply makes it quick and affordable to book flights from Duluth to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Duluth to Seattle with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Duluth to Seattle, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Duluth to Seattle become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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