HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$223+ Cheap flights from Duluth to Seattle (DLH - SEA)

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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — SEA
Jan 25 — Feb 11
Sat 1/25
Sat 2/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Duluth to Seattle with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 January 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$363
(Delta)

One-way from

$223
(United Airlines)

Popular in

June

Cheapest in

May

Average price

$388
Provider with most accurate pricing for Duluth Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Duluth Intl-Seattle/Tacoma Intl flights.
Search Deals
From Duluth Intl to Seattle/Tacoma Intl
Search Deals
One-way flight from Duluth Intl to Seattle/Tacoma Intl
Search Deals
High demand for flights, 13% potential price rise
Search Deals
Best time to find cheap flights, 5% potential price drop
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Duluth to Seattle

Cheapest flights from Duluth to Seattle
Explore the most affordable flight options available from Duluth to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2025.

This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/255:50 pmDLH - SEA
1 stop8h 04mDelta
Tue 4/296:05 amSEA - DLH
1 stop5h 38mDelta
Deal found 1/20$312
This United deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2511:18 amDLH - SEA
1 stop9h 43mUnited Airlines
Tue 4/297:33 pmSEA - DLH
2 stops13h 09mUnited Airlines
Deal found 1/19$472

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 2,558,603 searches. Data last updated January 20, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DuluthSeattle

DLH - SEA

DLHSEA

Duluth Intl

Sun 4/13

6:05 pm-11:28 pm

1 stop7h 23m

Seattle/Tacoma Intl

Mon 4/21

6:05 am-1:43 pm

1 stop5h 38m

$363

DuluthSeattle

DLH - SEA

DLHSEA

Duluth Intl

Mon 2/3

3:06 pm-10:53 pm

1 stop9h 47m

Seattle/Tacoma Intl

Fri 2/7

6:10 am-9:57 pm

2 stops13h 47m

$608

DuluthSeattle

DLH - SEA

DLHSEA

Duluth Intl

Tue 2/18

3:08 pm-10:42 pm

1 stop9h 34m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Compare providers for flights from Duluth to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Duluth to Seattle in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Duluth-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Duluth-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Duluth-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Duluth-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Duluth-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Duluth to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Duluth with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Duluth to Seattle

Get recent, data-driven insights about flights from Duluth to Seattle including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Duluth to Seattle?

Currently, January is the cheapest month in which you can book a flight from Duluth to Seattle (average of $238). Flying from Duluth to Seattle in July is currently the most expensive (average of $411). 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.

What is the cheapest time of day to fly from DLH to SEA?

Find hourly flight availability from Duluth to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 20, 2025.

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 in the afternoon, which can drop the price by up to 2% versus a flight at noon.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 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 January 20, 2025.
Delta
8.0
Very good
8,521 reviews

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

It was a good experience other than a short delay.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

It was a good experience other than a short delay.

United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very good
8,521 reviews

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

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.

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

    Currently priced at $363, 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 $608. Delta is 19% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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.

  • What is the cheapest month to book a flight from Duluth to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Duluth to Seattle (average of $238). Flying from Duluth to Seattle in July is currently the most expensive (average of $411). 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.

See more FAQs

Traveling to a place near Duluth?

Book flights to Duluth if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Duluth to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Minneapolis to Seattle flights
Minneapolis to Portland flights
Minneapolis to Spokane flights
Sioux Falls to Seattle flights
Fargo to Seattle flights
Bemidji to Seattle flights
Fargo to Portland flights
Rochester to Seattle flights
Minneapolis to Pasco flights
Sioux Falls to Spokane flights
Duluth to Portland flights
Sioux Falls to Portland flights
Minneapolis to Bellingham flights
Minneapolis to Pullman flights
Fargo to Spokane flights
Sioux Falls to Pasco flights
Rochester to Spokane flights
Minneapolis to Walla Walla flights
La Crosse to Portland flights
La Crosse to Seattle flights
Bemidji to Portland flights
Brainerd to Spokane flights
Brainerd to Portland flights
La Crosse to Spokane flights
Minneapolis to Yakima flights
Hibbing to Portland flights
Sioux Falls to Bellingham flights
International Falls to Seattle flights
Sioux Falls to Yakima flights
Fargo to Bellingham flights
Brainerd to Seattle flights
Duluth to Spokane flights
Rochester to Portland flights
Fargo to Pasco flights

Top airline flying from Duluth to Seattle

Discover the top airline 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 2,558,603 searches. Data last updated January 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$274Average$496FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.