SEA - DLH

$183 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 8/26. 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 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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Flights 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, Sep 10 - Tue, Sep 16
United Airlines Logo
7:00 am - 6:30 pmSEA-DLH
9h 30m1 stop
United Airlines Logo
3:10 pm - 10:20 pmDLH-SEA
9h 10m1 stop
$374United Airlines
Find Deal
Mon, Sep 1 - Thu, Sep 4
Delta Logo
11:55 pm - 10:15 amSEA-DLH
8h 20m1 stop
Delta Logo
5:10 am - 8:48 amDLH-SEA
5h 38m1 stop
$417Delta
Find Deal
Fri, Oct 17 - Mon, Oct 20
United Airlines Logo
11:40 pm - 10:43 amSEA-DLH
9h 03m1 stop
United Airlines Logo
3:07 pm - 10:30 pmDLH-SEA
9h 23m1 stop
$426United Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
United Airlines Logo
5:31 pm - 10:43 amSEA-DLH
15h 12m2 stops
United Airlines Logo
3:07 pm - 10:30 pmDLH-SEA
9h 23m1 stop
$432United Airlines
Find Deal
Wed, Sep 10 - Tue, Sep 16
United Airlines Logo
7:00 am - 6:30 pmSEA-DLH
9h 30m1 stop
United Airlines Logo
11:20 am - 10:15 pmDLH-SEA
12h 55m2 stops
$444United Airlines
Find Deal
Wed, Sep 10 - Tue, Sep 16
United Airlines Logo
5:14 pm - 10:45 amSEA-DLH
15h 31m2 stops
United Airlines Logo
9:45 am - 8:42 pmDLH-SEA
12h 57m2 stops
$513United Airlines
Find Deal
Wed, Sep 10 - Tue, Sep 16
United Airlines Logo
5:14 pm - 10:45 amSEA-DLH
15h 31m2 stops
United Airlines Logo
9:45 am - 10:52 pmDLH-SEA
15h 07m3 stops
$518United Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
United Airlines Logo
5:31 pm - 10:43 amSEA-DLH
15h 12m2 stops
United Airlines Logo
3:07 pm - 11:29 pmDLH-SEA
10h 22m2 stops
$523United Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
United Airlines Logo
11:40 pm - 10:43 amSEA-DLH
9h 03m1 stop
United Airlines Logo
3:07 pm - 6:49 pmDLH-SEA
29h 42m1 stop
$552United Airlines
Find Deal
Wed, Sep 17 - Mon, Sep 22
Delta Logo
6:00 am - 3:40 pmSEA-DLH
7h 40m1 stop
Delta Logo
4:20 pm - 8:15 pmDLH-SEA
5h 55m1 stop
$633Delta
Find Deal
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 $129 (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$183
Best time to beat the crowds with an average 73% drop in price.
Most popular time to fly with an average 33% increase in price.
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 $183 for a one-way ticket and $374 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Seattle and Duluth, with SkyTeam 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 $503 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $551 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 3 airlines serving 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.
8.0
DeltaOverall score based on 7980 reviews
8.5Crew
8.2Boarding
7.9Entertainment
7.9Comfort
7.3Food
Airline reviews

Food was surprisingly good but the WiFi was not great

8.0 ExcellentPrincess, Jul 2025SEA - LAX
Read more Delta reviews

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

Delta is a premier airline so my expectations are most always met.

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.

Everything was good except when we're on a 6 hour flight at dinner time and all they offer as part of the fare are little bags of junk food, it's disappointing. Bring back food service without an added price.

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

The plane was freezing cold. Asked for a blanket and there were none. Was told twice that the pilots would warm the plane and it never happened Worst experience flying ever

Multiple delays because they screwed up on the crew schedule and had to wait for over an hour for more people to come.

It was good. Basic flight. Drinks only. Pay budget. Get budget and I’m good with that. I want to get where I need to go. Not hard to please. Female First Officer is an absolute bonus for me!

The Wi-Fi was off, the arm rests are hard plastic.

The assistance with the wheel chairs was fabulous. All the people were so very friendly and helpful. I want to thank them all.

We almost missed our return flight. We got to the gate one minute from closing the cabin door, and the agent got us aboard the plane! We are so very grateful!!!!!

I already filled out a survey for this flight. We booked through KAYAK with airfare assist, and airfare assist did not confirm or honor our flight. Therefore, we had to go to a different place with a different travel agency. I tried very hard with airfare assist, They also promoted this on cheapair.com, but it was a bait and switch in both instances.

The flight there was frustrating but the flight home was very good.

Flight was delayed in phoenix by 1 hour. When Kenny got to minneapolis st paul, Kenny missed his connecting flight to Duluth on Sun country air. Sun country customer service did nothing to help Kenny get home to Duluth. We will not fly with sun country ever again.

When we landed in Minneapolis from Providence, the ground crew was unable to move the jet bridge to meet our plane because the wheels were frozen. We waited patiently on the plane for about 45 minutes while they tried to solve this problem. It was mind boggling that this would not be more quickly resolved, or anticipated, in a place where sever winter weather is the norm. We stressed about meeting our connecting flight to Portland, which we assumed would be our only option for that day. Fortunately, when we finally raced from our gate to the next one, that Sun Country flight had been delayed so we didn't miss it. We decided not to take anything but direct flights from now on, no matter how much cheaper.

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

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