SEA - DLH

$248 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 6/4. 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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Everything you should know

Cheapest round-trip
$432
Typical prices: $784-$522
United Airlines
Thu 5/28Thu 6/4
SEA - DLH • 1 stop
Cheapest one-way
$248
Typical prices: $488-$644
United Airlines
Thu 6/4
SEA - DLH • 1 stop
Top airlines
Cheapest • from $374 (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 Seattle and Duluth. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $515 (round-trip)
Shortest trip • 6h 58m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 35% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Duluth!
Flight Deals
Booking Insights
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

Thu, May 28 - Thu, Jun 4
United Airlines Logo
1:51 pm - 11:11 pm
SEA
-
DLH
7h 20m
1 stop
United Airlines Logo
6:10 pm - 11:59 pm
DLH
-
SEA
7h 49m
1 stop
$432United Airlines
Wed, Jun 3 - Sun, Jun 7
Delta Logo
6:00 am - 3:48 pm
SEA
-
DLH
7h 48m
1 stop
Delta Logo
5:00 am - 8:50 am
DLH
-
SEA
5h 50m
1 stop
$468Delta
Tue, May 12 - Sat, May 16
Delta Logo
6:00 am - 3:48 pm
SEA
-
DLH
7h 48m
1 stop
Delta Logo
4:30 pm - 8:43 pm
DLH
-
SEA
6h 13m
1 stop
$478Delta
Thu, May 21 - Sun, May 24
United Airlines Logo
1:51 pm - 11:11 pm
SEA
-
DLH
7h 20m
1 stop
United Airlines Logo
11:18 am - 7:05 pm
DLH
-
SEA
9h 47m
1 stop
$504United Airlines
Thu, May 21 - Sun, May 24
United Airlines Logo
1:51 pm - 11:11 pm
SEA
-
DLH
7h 20m
1 stop
United Airlines Logo
5:00 am - 2:30 pm
DLH
-
SEA
11h 30m
2 stops
$520United Airlines
Tue, May 26 - Thu, May 28
United Airlines Logo
1:51 pm - 11:11 pm
SEA
-
DLH
7h 20m
1 stop
United Airlines Logo
11:18 am - 10:08 pm
DLH
-
SEA
12h 50m
2 stops
$524United Airlines
Tue, May 12 - Sat, May 16
United Airlines Logo
11:53 pm - 10:34 am
SEA
-
DLH
8h 41m
1 stop
United Airlines Logo
6:04 am - 2:36 pm
DLH
-
SEA
10h 32m
2 stops
$532United Airlines
Tue, May 26 - Thu, May 28
United Airlines Logo
1:51 pm - 11:11 pm
SEA
-
DLH
7h 20m
1 stop
United Airlines Logo
5:00 am - 11:38 am
DLH
-
SEA
8h 38m
1 stop
$544United Airlines
Thu, May 28 - Thu, Jun 4
United Airlines Logo
5:06 pm - 10:43 am
SEA
-
DLH
15h 37m
2 stops
United Airlines Logo
6:10 pm - 11:59 pm
DLH
-
SEA
7h 49m
1 stop
$552United Airlines
Tue, May 12 - Sat, May 16
United Airlines Logo
7:36 pm - 10:34 am
SEA
-
DLH
12h 58m
2 stops
United Airlines Logo
6:04 am - 8:53 pm
DLH
-
SEA
16h 49m
2 stops
$568United Airlines
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.

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

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

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 September, where tickets cost $302 (return) on average. On the other hand, the most expensive months are May and July, where the average cost of round-trip tickets is $762 and $726 respectively.

Good to know

Low seasonFebruary
Cheapest flight$248
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 18% 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 $248 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?

    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 $522 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 8463 reviews
8.5Crew
7.2Food
7.8Entertainment
7.9Comfort
8.1Boarding
Airline reviews

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

4.0 OkayDerek, Apr 2026
SEA - HNL
Read more Delta reviews

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

I am writing to express my dissatisfaction with the poor service and unprofessional staff we encountered when traveling with an infant. Our flight was delayed, and the gate staff failed to manage the boarding process appropriately. Due to incorrect, unavailable, or missing 'pink tag' stroller and car seat check-in procedures at the gate, we were forced to board last. Furthermore, the gate staff was rude and dismissive, causing significant distress to our infant. To make matters worse, one of our checked items—an infant sleeper/lounger—was returned to us broken. Given the unsafe handling of essential equipment and unprofessional treatment, I expect a prompt resolution regarding compensation for the damaged items.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

The cabin temperature was nice and cool. The wifi was not working.

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

My seatback screen didn’t work so that sucked because that’s what I was going to do on the plane.

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

First flight out and was 85 minutes delayed. Notification came out way too late

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

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

Information on your arrival and departure airports