DLH - SEA

$254 Find Cheap Flights from Duluth to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Duluth to Seattle departing on 7/25. 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.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Duluth to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Duluth to Seattle, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Duluth to Seattle (DLH-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Duluth to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Duluth to Seattle

Thu, Sep 4 - Mon, Sep 8
Delta Logo
5:10 am - 8:48 amDLH-SEA
5h 38m1 stop
Delta Logo
11:55 pm - 10:15 amSEA-DLH
8h 20m1 stop
$258Delta
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Thu, Sep 4 - Sun, Sep 7
Delta Logo
5:10 am - 8:48 amDLH-SEA
5h 38m1 stop
Delta Logo
11:55 pm - 10:15 amSEA-DLH
8h 20m1 stop
$283Delta
Find Deal
Thu, Sep 4 - Wed, Sep 10
Delta Logo
5:10 am - 8:48 amDLH-SEA
5h 38m1 stop
Delta Logo
7:10 am - 10:46 pmSEA-DLH
13h 36m2 stops
$317Delta
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Wed, Sep 3 - Mon, Sep 8
Delta Logo
5:10 am - 10:15 pmDLH-SEA
19h 05m2 stops
Delta Logo
11:55 pm - 10:15 amSEA-DLH
8h 20m1 stop
$332Delta
Find Deal
Wed, Sep 3 - Tue, Sep 9
United Airlines Logo
3:10 pm - 10:20 pmDLH-SEA
9h 10m1 stop
United Airlines Logo
11:54 pm - 10:45 amSEA-DLH
8h 51m1 stop
$338United Airlines
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Fri, Sep 5 - Tue, Sep 9
United Airlines Logo
9:45 am - 8:42 pmDLH-SEA
12h 57m2 stops
United Airlines Logo
11:54 pm - 10:45 amSEA-DLH
8h 51m1 stop
$344United Airlines
Find Deal
Wed, Sep 3 - Sat, Sep 6
United Airlines Logo
3:10 pm - 10:59 pmDLH-SEA
9h 49m2 stops
United Airlines Logo
5:35 pm - 10:45 amSEA-DLH
15h 10m2 stops
$349United Airlines
Find Deal
Tue, Sep 2 - Wed, Sep 10
Delta Logo
7:50 am - 8:08 pmDLH-SEA
14h 18m2 stops
Delta Logo
1:40 pm - 10:46 pmSEA-DLH
7h 06m1 stop
$352Delta
Find Deal
Fri, Sep 5 - Mon, Sep 8
Delta Logo
5:10 am - 10:25 pmDLH-SEA
19h 15m2 stops
Delta Logo
11:55 pm - 10:15 amSEA-DLH
8h 20m1 stop
$357Delta
Find Deal
Fri, Sep 5 - Wed, Sep 10
Delta Logo
5:10 am - 8:48 amDLH-SEA
5h 38m1 stop
Delta Logo
1:40 pm - 10:46 pmSEA-DLH
7h 06m1 stop
$363Delta
Find Deal
Useful Info

KAYAK's insights & trends for Duluth to Seattle flights

Get data-powered insights and trends into flights from Duluth to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Duluth to Seattle?

The average price of all round-trip flights from Duluth to Seattle clicked on KAYAK for each day over the last 12 months.

For Duluth to Seattle, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Seattle back to Duluth, the best deals are generally found on Wednesday, with Friday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Duluth to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Duluth to Seattle is September, where tickets cost $258 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $556 and $517 respectively.

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Good to know

Low seasonJune
High seasonAugust
Cheapest flight$254
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 15% increase in price.
Flight from Duluth to Seattle

When to book flights from Duluth to Seattle

Are your dates flexible? Find out the best times to travel from Duluth to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Duluth to Seattle

  • What is the cheapest flight from Duluth to Seattle?

    In the last 3 days, the lowest price for a flight from Duluth to Seattle was $254 for a one-way ticket and $258 for a round-trip.

  • Do I need a passport to fly between Duluth and Seattle?

    No, a passport isn't needed to fly from Duluth to Seattle. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Duluth to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Duluth to Seattle?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Duluth and Seattle, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Duluth to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Duluth to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Duluth to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Duluth is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Duluth to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Duluth with another airline. Booking your flights between Duluth and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Duluth to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Duluth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Duluth to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Duluth to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Duluth to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7950 reviews
7.3Food
8.2Boarding
7.9Entertainment
7.9Comfort
8.5Crew
Airline reviews

Food from the flight from Atlanta to Santiago was very poor..

4.0 OkayAnonymous, May 2025FAI - SEA
Read more Delta reviews

Food from the flight from Atlanta to Santiago was very poor..

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

Flight left early and arrived early. the whole trip was excellent.

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Everything you need to know for your flight from Duluth to Seattle

Information on your arrival and departure airports

Duluth (DLH)
Seattle (SEA)

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