SEA - DLH

$204 Find Cheap Flights from Seattle to Duluth

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Duluth departing on 11/24. 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 Duluth

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

Cheap Flights from Seattle to Duluth (SEA-DLH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Duluth 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 Seattle to Duluth

Wed, Dec 3 - Mon, Dec 15
Delta Logo
6:00 am - 3:44 pmSEA-DLH
7h 44m1 stop
Delta Logo
4:24 pm - 8:35 pmDLH-SEA
6h 11m1 stop
$322Delta
Find Deal
Sun, Feb 1 - Sat, Feb 7
Delta Logo
6:05 am - 4:01 pmSEA-DLH
7h 56m1 stop
Delta Logo
8:00 am - 2:45 pmDLH-SEA
8h 45m1 stop
$333Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
11:59 pm - 9:44 amSEA-DLH
7h 45m1 stop
United Airlines Logo
11:26 am - 6:58 pmDLH-SEA
9h 32m1 stop
$338United Airlines
Find Deal
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
11:59 pm - 9:44 amSEA-DLH
7h 45m1 stop
United Airlines Logo
11:26 am - 11:16 pmDLH-SEA
13h 50m2 stops
$344United Airlines
Find Deal
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
5:20 pm - 9:44 amSEA-DLH
14h 24m2 stops
United Airlines Logo
11:26 am - 11:22 pmDLH-SEA
13h 56m2 stops
$349United Airlines
Find Deal
Sat, Mar 7 - Wed, Mar 11
Delta Logo
9:30 am - 10:07 amSEA-DLH
22h 37m2 stops
Delta Logo
4:20 pm - 8:32 pmDLH-SEA
6h 12m1 stop
$362Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
Delta Logo
9:30 am - 10:07 amSEA-DLH
22h 37m2 stops
Delta Logo
4:20 pm - 8:32 pmDLH-SEA
6h 12m1 stop
$372Delta
Find Deal
Wed, Dec 3 - Fri, Dec 5
Delta Logo
1:47 pm - 11:59 pmSEA-DLH
8h 12m1 stop
Delta Logo
4:24 pm - 8:36 pmDLH-SEA
6h 12m1 stop
$377Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
7:29 pm - 9:44 amSEA-DLH
12h 15m2 stops
United Airlines Logo
11:26 am - 11:22 pmDLH-SEA
13h 56m2 stops
$383United Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
United Airlines Logo
5:07 pm - 10:38 amSEA-DLH
15h 31m2 stops
United Airlines Logo
3:06 pm - 10:28 pmDLH-SEA
9h 22m1 stop
$388United Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $322 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 59% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$322
Overall average: $393
Delta
Wed 12/3Mon 12/15
SEA - DLH • 1 stop
Cheapest one-way
$204
Typical prices: $314-$471
Delta
Mon 11/24
SEA - DLH • 1 stop
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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 Duluth!
Booking Insights

KAYAK's insights & trends for Seattle to Duluth flights

Get data-powered insights and trends into flights from Seattle to Duluth 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 Seattle to Duluth?

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

When flying from Seattle to Duluth, you should consider leaving on a Wednesday and avoid Fridays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Duluth, 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 Seattle to Duluth is November, where tickets cost $193 (return) on average. On the other hand, the most expensive months are May and April, where the average cost of round-trip tickets is $745 and $687 respectively.

Good to know

Low seasonNovember
Cheapest flight$204
Best time to beat the crowds with an average 59% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Seattle to Duluth

When to book flights from Seattle to Duluth

Are your dates flexible? Find out the best times to travel from Seattle to Duluth 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 Seattle to Duluth

  • What is the cheapest flight from Seattle to Duluth?

    In the last 3 days, the lowest price for a flight from Seattle to Duluth was $204 for a one-way ticket and $322 for a round-trip.

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

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

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

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

  • Which airline alliances offer flights from Seattle to Duluth?

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to Duluth are Delta and United Airlines. With an average price for the route of $485 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 $480 and an overall rating of 7.4.

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

    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 Seattle to Duluth.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Duluth from Seattle 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 Seattle to Duluth?

    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 Duluth with an airline and back to Seattle with another airline. Booking your flights between Seattle and DLH 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 Seattle to Duluth?

    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 Duluth from Seattle 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 Seattle to Duluth

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Duluth. 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 Seattle to Duluth? 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 7998 reviews
8.5Crew
8.2Boarding
7.9Comfort
7.9Entertainment
7.3Food
Airline reviews

On time flight. Seat comfort could be better in the Comfort section.

10.0 ExcellentMichael, Oct 2025CLT - MSP
Read more Delta reviews

On time flight. Seat comfort could be better in the Comfort section.

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Food was surprisingly good but the WiFi was not great

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

No one fussed at me about my pap machine as a 3rd pice on the plane. Boarding was pleasant and smooth. The boarding agent in Anchorage was a fun character- he could be in a movie. :~) The on-board crew were downright pleasant. No militant attitudes on Delta. Like all planes these days the seats are too narrow for standard Americans and at 5’2” there is barely enough leg room. I don’t know how tall people fold themselves into the seats. But that’s nothing specific to Delta

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Flight was delayed long enough that I was misding my connecting flight. The agents could not get me on a comparable flight, nor could they get me s Main Cabin seat I had paid for, nor could they get me on a comparable connecting flight. The gate agent would not issue meal vouchers, even though I was delayed over six hours! I had to spend over an hour and 15 minutes with customer service on the phone to See if they could get me on a better flight and get a meal voucher. Customer service was not helpful enough in trying to find alternate flights and it Ended up taking me 24 hours for a 12 hour trip!! Delta does not provide upgrades NOR will they even give you a pass for a few hours to their lounge. They claim that they do not issue daily passes to their lounge anymore. I call BS since this would be no extra cost to them to provide excellent customer service and give you a few hours to relax in comfort when you’re sitting in a crowded airport and your flight has been screwed up for that many hours.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

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

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