DLH - SEA

$183 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 4/24. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$338
Typical prices: $322-$537
United Airlines
Fri 4/10Fri 4/17
DLH - SEA • 1 stop
Cheapest one-way
$183
United Airlines
Fri 4/24
DLH - SEA • 1 stop
Top airlines
Cheapest • from $338 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Duluth and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $365 (round-trip)
Shortest trip • 6h 55m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight 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

Fri, Apr 10 - Fri, Apr 17
United Airlines Logo
6:57 pm - 12:34 am
DLH
-
SEA
7h 37m
1 stop
United Airlines Logo
11:59 pm - 10:38 am
SEA
-
DLH
8h 39m
1 stop
$338United Airlines
Fri, Apr 10 - Fri, Apr 17
United Airlines Logo
6:57 pm - 12:34 am
DLH
-
SEA
7h 37m
1 stop
United Airlines Logo
7:37 pm - 10:38 am
SEA
-
DLH
13h 01m
2 stops
$358United Airlines
Wed, May 20 - Wed, May 27
United Airlines Logo
6:44 pm - 11:59 pm
DLH
-
SEA
7h 15m
1 stop
United Airlines Logo
1:36 pm - 11:08 pm
SEA
-
DLH
7h 32m
1 stop
$381United Airlines
Wed, May 20 - Wed, May 27
United Airlines Logo
6:44 pm - 11:59 pm
DLH
-
SEA
7h 15m
1 stop
United Airlines Logo
11:02 am - 11:08 pm
SEA
-
DLH
10h 06m
2 stops
$386United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
2:57 pm - 10:47 pm
DLH
-
SEA
9h 50m
1 stop
United Airlines Logo
7:00 am - 5:35 pm
SEA
-
DLH
8h 35m
1 stop
$398United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
7:45 am - 6:30 pm
DLH
-
SEA
12h 45m
2 stops
United Airlines Logo
7:00 am - 5:35 pm
SEA
-
DLH
8h 35m
1 stop
$404United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
11:14 am - 11:29 pm
DLH
-
SEA
14h 15m
3 stops
United Airlines Logo
7:00 am - 5:35 pm
SEA
-
DLH
8h 35m
1 stop
$409United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
11:14 am - 11:29 pm
DLH
-
SEA
14h 15m
3 stops
United Airlines Logo
7:36 pm - 10:34 am
SEA
-
DLH
12h 58m
2 stops
$414United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
11:14 am - 7:00 pm
DLH
-
SEA
9h 46m
1 stop
United Airlines Logo
11:53 pm - 10:34 am
SEA
-
DLH
8h 41m
1 stop
$418United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
7:45 am - 9:06 pm
DLH
-
SEA
15h 21m
2 stops
United Airlines Logo
7:00 am - 5:35 pm
SEA
-
DLH
8h 35m
1 stop
$424United Airlines
Booking Insights

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.

How much is a round-trip flight from Duluth to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Duluth to Seattle departing in April.

Good to know

Low seasonSeptember
Cheapest flight$183
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 33% lower on average.
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 $183 for a one-way ticket and $338 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 Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Duluth to Seattle, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Duluth to Seattle are Delta and United Airlines. With an average price for the route of $396 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $389 and an overall rating of 7.4.

  • 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.

Reviews of the top airlines 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.
7.9
DeltaOverall score based on 8293 reviews
7.8Entertainment
7.9Comfort
8.1Boarding
8.5Crew
7.2Food
Airline reviews

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

6.0 GoodAnonymous, Feb 2026
RDU - SEA
Read more Delta reviews

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

The seats weren’t reclining even though it wasn’t as exit seat

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Advertised fruit trays with cheese, but only snacks handed out!

DELTA does a terrific job making sure you are well taken care of during the flight, gives you assurance before the flight through numerous email notifications about your upcoming flight & lastly good follow up after the flight making sure your needs were mat. It has been, is & will continue to be my carrier of choice in all my future travels. Good Job DELTA

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

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

Information on your arrival and departure airports