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DLH - SEA

$326 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 10/1. 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
0 bags
qui 6/27
qui 7/4

Search 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
In the last 7 days travelers have searched 42,816,550 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
2:45 pm - 8:06 pmDLH-SEA
7h 21m1 stop
12:35 am - 9:49 amSEA-DLH
7h 14m1 stop
$326Delta
Find Deal
ter, out 1 - ter, nov 12
10:12 am - 4:36 pmDLH-SEA
8h 24m1 stop
10:18 am - 7:28 pmSEA-DLH
7h 10m1 stop
$336Sun Country Air
Find Deal
seg, set 23 - sex, set 27
5:50 pm - 11:31 pmDLH-SEA
7h 41m1 stop
6:30 am - 1:40 pmSEA-DLH
5h 10m1 stop
$346Delta
Find Deal
sex, out 11 - ter, out 15
5:44 pm - 11:59 pmDLH-SEA
8h 15m1 stop
8:30 am - 5:03 pmSEA-DLH
6h 33m1 stop
$366Delta
Find Deal
sex, ago 23 - sex, ago 30
2:45 pm - 10:20 amDLH-SEA
21h 35m2 stops
4:30 pm - 11:48 pmSEA-DLH
5h 18m1 stop
$406Delta
Find Deal
ter, set 17 - sex, set 20
11:16 am - 6:41 pmDLH-SEA
9h 25m1 stop
6:39 am - 9:22 pmSEA-DLH
12h 43m2 stops
$411United Airlines
Find Deal
ter, out 1 - qua, nov 13
2:45 pm - 9:58 amDLH-SEA
21h 13m2 stops
7:32 am - 9:49 amSEA-DLH
24h 17m2 stops
$414Delta
Find Deal
ter, set 17 - sex, set 20
3:07 pm - 6:41 pmDLH-SEA
29h 34m1 stop
6:45 am - 10:00 pmSEA-DLH
13h 15m2 stops
$457United Airlines
Find Deal
sex, out 11 - ter, out 15
8:00 am - 3:41 pmDLH-SEA
9h 41m1 stop
11:59 pm - 9:53 pmSEA-DLH
19h 54m1 stop
$458United Airlines
Find Deal
ter, set 17 - sex, set 20
3:07 pm - 10:06 amDLH-SEA
20h 59m2 stops
6:39 am - 9:22 pmSEA-DLH
12h 43m2 stops
$467United Airlines
Find Deal
ter, out 1 - qua, nov 13

Flights from Duluth to Seattle - Travel Insights & Trends

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 flights from Duluth to Seattle clicked on KAYAK for each day over the last 12 months.
When flying from Duluth to Seattle, you should consider leaving on a Tuesday and avoid Saturdays if you are looking for the best rates. For your return to Duluth, you’ll find the best rates on Mondays and the most expensive ones on Fridays.

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 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 May, where tickets cost $274 on average. On the other hand, the most expensive months are June and October, where the average cost of tickets is $937 and $892 respectively.

Good to know

Low season

February

High season

July

Cheapest flight

$326
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 12% 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 $326 for a round-trip ticket.

  • 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Duluth and Seattle, with SkyTeam 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 $586 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 $692 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.

See more FAQs

Top 3 airlines serving 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 10502 reviews
7.4Food
8.0Entertainment
8.2Boarding
7.9Comfort
8.6Crew
Airline reviews

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

10.0 ExcellentDonald, May 2024FLL - SEA
Read more about Delta reviews

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

On time take off…US cabins look tired and need of refresh!

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

This was a Lufthansa flight, not United. The CSA at the counter, Ashley, was not only incompetent, but quite rude. Me and two other PAX waited over 7 minutes standing in front of her and another CSA and they ignored us. We joked that we must have accidently taken invisibility pills. She could have at least said "I'll be with you in a moment, I'm currently....". I could go on about how rude she and the other CSAs were (whispering, not communicating with me, blaming the situation on others, etc.). She would not work for me. Then, she gave me literally the worst seat on the plane. the worst. My seat kept getting bumped (rammed twice by the crew with their carts and about every 5 minutes by someone using the bathroom), listening to the bathroom all night, crowded seat, etc.

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

First flight of the day… MINIMUM FUEL! 15 minute landing delay at HOU due to fog turned into a 2+ hour delay! Rather than circle, they had to divert to another city to refuel! Sat on tarmac at Austin to refuel. We ALL missed our connections! The crew, including pilots, were clueless. Crew was really a mess. At HOU, Untied employees were exceedingly rude to all. It was pitiful.

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

They were flexible and let my daughter and I sit in the back of the plane.

A flight attendant appeared to not be in a good mood that served us; felt she was being short. Overhead announcements were very loud compared to other airlines and the message was not friendly and was a little confusing. This flight was particularly over all was not satisfying compared to previous Sun Country flights.

Airlines should have to add their fees to their fares

I am upset with the hidden fees for bringing on an overhead carryon onto flight and also having to pay for my seat selection. This should all be part of the original price of the ticket. Very poor customer service

Sun country Wi-Fi was not working. Flight was overbooked by two people. Had to pay extra for carryons day before flight and I don’t like hidden fees like that.

WiFi did not work. Woman flight attendant in the rear of the plane was moody.

Flight delayed over 3 hrs due to unexplained issue. No text message to notify.

Well we did not realize at first it was a ground transfer, but we really enjoyed it and would definitely recommend to friends and family. Our driver was awesome and the ride was wonderful. A bathroom on board would have been nice, but at least we were warned that there wasn't one so we went ahead of time.

We were on a fairly long flight and they offered nothing for a snack (unless you paid) and then quickly gave you a drink and were never to be seen again. I would have loved a refill on my water but that was not an option. The flight attendants were standing on ther phone when we boarded and left and never even greeted us. Any other flight I have been on they would have welcomed us on the plane and again greeted us as we got off. Our landline transfer from MSP to Rochester on the other hand was FANTASTIC! We would highly recommend!

Took forever to get the plane loaded and unloaded. Longest I have ever had. I was in the middle of the plane and it almost took a hour after landing to get off of the plane.

Last minute flights from Duluth to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Duluth to Seattle that are departing in the next 10 days.
5/29qua
multi-stopUnited Airlines
10h 08mDLH-SEA
5/29qua
multi-stopUnited Airlines
8h 48mSEA-DLH
$956
5/29qua
multi-stopUnited Airlines
15h 20mDLH-SEA
5/29qua
multi-stopUnited Airlines
8h 48mSEA-DLH
$1,025
5/29qua
multi-stopUnited Airlines
11h 58mDLH-SEA
5/29qua
multi-stopUnited Airlines
13h 13mSEA-DLH
$1,244

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Duluth - Seattle Flights

Departure:

Duluth (DLH)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Duluth

Cabin classes: