SEA - DLH

$253 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 6/3. 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

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 Flight Deals 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.

Recent round-trip flight deals from Seattle to Duluth

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Duluth.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
6:00 am - 3:36 pmSEA-DLH
7h 36m1 stop
Delta Logo
6:19 pm - 11:53 pmDLH-SEA
7h 34m1 stop
$386Delta
Find Deal
Thu, Jun 5 - Thu, Jun 12
Delta Logo
6:00 am - 3:21 pmSEA-DLH
7h 21m1 stop
Delta Logo
6:03 pm - 11:52 pmDLH-SEA
7h 49m1 stop
$481Delta
Find Deal
Tue, Jul 29 - Thu, Aug 7
United Airlines Logo
12:20 am - 10:51 amSEA-DLH
8h 31m1 stop
United Airlines Logo
11:27 am - 6:58 pmDLH-SEA
9h 31m1 stop
$486United Airlines
Find Deal
Mon, Jul 28 - Thu, Aug 7
United Airlines Logo
12:20 am - 10:51 amSEA-DLH
8h 31m1 stop
United Airlines Logo
11:27 am - 12:59 amDLH-SEA
15h 32m2 stops
$492United Airlines
Find Deal
Mon, Jul 28 - Thu, Aug 7
United Airlines Logo
7:34 pm - 10:51 amSEA-DLH
13h 17m2 stops
United Airlines Logo
11:27 am - 12:59 amDLH-SEA
15h 32m2 stops
$497United Airlines
Find Deal
Tue, Jul 29 - Thu, Aug 7
United Airlines Logo
11:50 pm - 10:52 amSEA-DLH
9h 02m1 stop
United Airlines Logo
11:27 am - 9:58 pmDLH-SEA
12h 31m2 stops
$529United Airlines
Find Deal
Thu, Jun 5 - Thu, Jun 12
United Airlines Logo
7:34 pm - 5:33 pmSEA-DLH
19h 59m3 stops
United Airlines Logo
11:27 am - 12:59 amDLH-SEA
15h 32m2 stops
$547United Airlines
Find Deal
Tue, Jul 29 - Thu, Aug 7
United Airlines Logo
12:20 am - 10:51 amSEA-DLH
8h 31m1 stop
United Airlines Logo
6:13 pm - 11:59 pmDLH-SEA
7h 46m1 stop
$557United Airlines
Find Deal
Mon, Jun 30 - Tue, Jul 15
United Airlines Logo
12:20 am - 10:51 amSEA-DLH
8h 31m1 stop
United Airlines Logo
11:27 am - 10:16 pmDLH-SEA
12h 49m2 stops
$563United Airlines
Find Deal
Mon, Jun 30 - Tue, Jul 15
United Airlines Logo
12:20 am - 10:51 amSEA-DLH
8h 31m1 stop
United Airlines Logo
8:00 am - 8:56 pmDLH-SEA
14h 56m3 stops
$588United Airlines
Find Deal
Mon, Jun 30 - Tue, Jul 15
Useful Info

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 March, where tickets cost $295 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is $783 and $687 respectively.

Good to know

Low seasonApril
High seasonAugust
Cheapest flight$253
Best time to beat the crowds but there is an average 41% increase in price.
Most popular time to fly with an average 22% 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 $253 for a one-way ticket and $386 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 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 $460 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 $488 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.

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.
8.0
DeltaOverall score based on 7936 reviews
7.3Food
8.5Crew
7.9Entertainment
7.9Comfort
8.2Boarding
Airline reviews

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.

4.0 OkayJoseph C., Mar 2025SEA - JFK
Read more Delta reviews

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.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

Coach seating is debilitating, neither my husband or I can walk the following day

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

It was NOT pleasant. Started from checking our luggage to the last time getting off the plane. The crew was not friendly, the food was horrible and the seats were too close to each other that I got a bruise on my knee.

A bit rush for transit. Food and entertainment are not available

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

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

Information on your arrival and departure airports

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