DLH - SEA

$318 Find Cheap Flights from Duluth to Seattle

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Duluth to Seattle departing on 10/31. 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
$318
United Airlines
Sat 10/31Tue 11/3
DLH - SEA • 1 stop
Cheapest one-way
$334
Delta
Fri 7/24
DLH - SEA • 1 stop
Top airlines
Cheapest • from $318 (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 $406 (round-trip)
Shortest trip • 6h 57m (one-way)
Insights
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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

Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
5:00 am - 11:40 am
DLH
-
SEA
8h 40m
1 stop
United Airlines Logo
2:15 pm - 12:53 am
SEA
-
DLH
8h 38m
1 stop
$318United Airlines
Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
3:14 pm - 10:29 pm
DLH
-
SEA
9h 15m
1 stop
United Airlines Logo
8:00 am - 9:57 pm
SEA
-
DLH
11h 57m
2 stops
$324United Airlines
Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
3:14 pm - 10:59 pm
DLH
-
SEA
9h 45m
2 stops
United Airlines Logo
12:46 pm - 12:53 am
SEA
-
DLH
10h 07m
2 stops
$385United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
3:11 pm - 10:43 pm
DLH
-
SEA
9h 32m
1 stop
United Airlines Logo
11:00 pm - 10:42 am
SEA
-
DLH
9h 42m
1 stop
$408United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
3:10 pm - 10:56 pm
DLH
-
SEA
9h 46m
1 stop
United Airlines Logo
11:13 pm - 10:40 am
SEA
-
DLH
9h 27m
1 stop
$413United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
3:11 pm - 10:43 pm
DLH
-
SEA
9h 32m
1 stop
United Airlines Logo
5:20 pm - 10:42 am
SEA
-
DLH
15h 22m
2 stops
$414United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
3:10 pm - 10:56 pm
DLH
-
SEA
9h 46m
1 stop
United Airlines Logo
8:29 pm - 10:40 am
SEA
-
DLH
12h 11m
2 stops
$418United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
7:45 am - 7:08 pm
DLH
-
SEA
13h 23m
2 stops
United Airlines Logo
5:20 pm - 10:42 am
SEA
-
DLH
15h 22m
2 stops
$419United Airlines
Thu, Nov 12 - Mon, Nov 16
United Airlines Logo
5:00 am - 2:18 pm
DLH
-
SEA
11h 18m
2 stops
United Airlines Logo
2:15 pm - 12:53 am
SEA
-
DLH
8h 38m
1 stop
$476United Airlines
Wed, Sep 9 - Mon, Sep 21
United Airlines Logo
3:10 pm - 10:45 pm
DLH
-
SEA
9h 35m
1 stop
United Airlines Logo
11:00 pm - 10:42 am
SEA
-
DLH
9h 42m
1 stop
$478United 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.

Which airlines provide the cheapest flights from Duluth to Seattle?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Duluth to Seattle were found on United Airlines ($318) and Delta ($753).

Good to know

Cheapest flight$318
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 5 days, the lowest price for a flight from Duluth to Seattle was $334 for a one-way ticket and $318 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 $411 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 8405 reviews
7.2Food
8.1Boarding
7.8Entertainment
7.8Comfort
8.5Crew
Airline reviews

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

8.0 ExcellentGayle, Jun 2026
SMF - SEA
Read more Delta reviews

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

My tray was broken so i had no place to work or eat except my lap. Flight attendant said I would get an email with some credit or miles, it was a complete waste of time as I could only function at about 20% of normal. I have not received anything yet.

I was told that they needed to check my bag at the gate and to pick it up at the gate in Richmond. No big deal. I know they can't control the weather, but we flew around RIC for 45 minutes to avoid the storm and were 25 minutes late leaving as well. Once we landed, we were told to go to baggage claim to pick up our luggage. I went to bathroom, paid for parking, and went to the assigned baggage claim location. United flight people came down with us as well. They got their luggage immediately. Next, South West people came down about 10 minutes later. They got their luggage next. We finally got our luggage around 30 minutes in waiting. Was not a wonderful experience. No reflection on Delta, but the ground crew was lousy at best.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

As previously noted, this flight was great: departure was timely, the crew was friendly and attentive, and wifi connectivity was seamless. In particular, I appreciated that the flight attendant just told me to stow the laptop right before takeoff/landing, and trusted me to do so (which I did!).

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

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

Information on your arrival and departure airports