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SEA - DLH

Find cheap flights from Seattle to Duluth from $501

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Duluth departing on 9/17. 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
Sat 6/1
Sat 6/8

Search 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
In the last 7 days travelers have searched 43,740,974 times on KAYAK, and here is why:

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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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:59 pm - 2:25 pmSEA-DLH
12h 26m1 stop
8:00 am - 9:48 amDLH-SEA
27h 48m1 stop
$501United Airlines
Find Deal
Tue, Sep 17 - Sun, Sep 22
12:40 am - 10:17 amSEA-DLH
7h 37m1 stop
5:44 pm - 11:55 pmDLH-SEA
8h 11m1 stop
$506Delta
Find Deal
Sun, Jun 16 - Thu, Jun 20
12:40 am - 10:17 amSEA-DLH
7h 37m1 stop
5:44 pm - 11:59 pmDLH-SEA
8h 15m2 stops
$511Delta
Find Deal
Sun, Jun 16 - Thu, Jun 20
7:59 pm - 10:17 amSEA-DLH
12h 18m2 stops
5:44 pm - 11:59 pmDLH-SEA
8h 15m2 stops
$516Delta
Find Deal
Mon, Jun 17 - Thu, Jun 20
12:30 am - 9:46 amSEA-DLH
7h 16m1 stop
2:45 pm - 7:56 pmDLH-SEA
7h 11m1 stop
$532Delta
Find Deal
Sun, Aug 11 - Mon, Aug 19
12:30 am - 9:46 amSEA-DLH
7h 16m1 stop
2:45 pm - 11:57 pmDLH-SEA
11h 12m2 stops
$537Delta
Find Deal
Sun, Aug 11 - Mon, Aug 19
7:00 am - 2:25 pmSEA-DLH
29h 25m3 stops
8:00 am - 9:48 amDLH-SEA
27h 48m1 stop
$556United Airlines
Find Deal
Tue, Sep 17 - Sun, Sep 22
11:59 pm - 9:53 pmSEA-DLH
19h 54m1 stop
8:00 am - 9:48 amDLH-SEA
27h 48m1 stop
$570United Airlines
Find Deal
Tue, Aug 27 - Sun, Sep 1
5:30 am - 5:02 pmSEA-DLH
9h 32m2 stops
2:45 pm - 10:18 pmDLH-SEA
9h 33m2 stops
$612Delta
Find Deal
Wed, Jul 17 - Tue, Jul 23
5:30 am - 5:02 pmSEA-DLH
9h 32m2 stops
2:45 pm - 8:47 pmDLH-SEA
8h 02m1 stop
$623Delta
Find Deal
Wed, Jul 17 - Tue, Jul 23

Flights from Seattle to Duluth - Travel Insights & Trends

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 flights from Seattle to Duluth clicked on KAYAK for each day over the last 12 months.
For Seattle to Duluth, Monday is the cheapest day to fly on average and Friday is the most expensive. Flying from Duluth back to Seattle, the best deals are generally found on Monday, with Saturday being the most expensive.

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 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 February, where tickets cost $427 on average. On the other hand, the most expensive months are April and June, where the average cost of tickets is $816 and $744 respectively.

How far in advance should I book a flight from Seattle to Duluth?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Duluth, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Duluth, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 36 days before departure.

Good to know

Low season

April

High season

August

Cheapest flight

$501
Best time to beat the crowds but there is an average 35% increase in price.
Most popular time to fly and prices are also 3% 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 $501 for a round-trip ticket.

  • 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 $717 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 $707 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.

See more FAQs

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 10861 reviews
7.4Food
8.6Crew
8.2Boarding
7.9Comfort
8.0Entertainment
Airline reviews

Had a broken tray in business class. Crew just shrugged it off.

2.0 MediocreShiva, Apr 2024SEA - SFO
Read more about Delta reviews

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

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

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

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

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.

Our flight was delayed and there was no communication at the airport.

Very hard to get comfortable in seat since they are too crowded. One of our suitcases was destroyed on the flight and is unusable now. No one at ticket counter when we arrived and no indication on when they would be in service. When we finally got into the airport past the TSA, all restaurants were closed.

Very hard to get comfortable in seat since they are too crowded. One of our suitcases was destroyed on the flight and is unusable now.

The plane boarded on time (at a gate next to Delta which was 2 hours late). No compatible headphones for me to purchase.

Crew was courteous. Flight was late arriving which made us late. Very cramped seating.

Flight attendants could have been more engaged in the passengers. They were more interested in talking to each other

Last minute flights from Seattle to Duluth

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 Seattle to Duluth that are departing in the next 10 days.
5/4Sat
multi-stopUnited Airlines
38h 28mSEA-DLH
5/11Sat
multi-stopUnited Airlines
15h 36mDLH-SEA
$805
5/4Sat
multi-stopUnited Airlines
26h 47mSEA-DLH
5/11Sat
multi-stopUnited Airlines
15h 36mDLH-SEA
$836
5/4Sat
multi-stopUnited Airlines
29h 16mSEA-DLH
5/11Sat
multi-stopUnited Airlines
15h 36mDLH-SEA
$840
5/4Sat
multi-stopUnited Airlines
8h 39mSEA-DLH
5/7Tue
multi-stopUnited Airlines
15h 36mDLH-SEA
$851
5/4Sat
multi-stopUnited Airlines
35h 08mSEA-DLH
5/7Tue
multi-stopUnited Airlines
15h 36mDLH-SEA
$859
5/4Sat
multi-stopUnited Airlines
19h 43mSEA-DLH
5/11Sat
multi-stopUnited Airlines
12h 54mDLH-SEA
$871
5/4Sat
multi-stopUnited Airlines
8h 39mSEA-DLH
5/7Tue
multi-stopUnited Airlines
24h 04mDLH-SEA
$877
5/5Sun
multi-stopUnited Airlines
8h 46mSEA-DLH
5/8Wed
multi-stopUnited Airlines
20h 32mDLH-SEA
$920
5/4Sat
multi-stopDelta
5h 25mSEA-DLH
5/7Tue
multi-stopDelta
5h 14mDLH-SEA
$938
5/5Sun
multi-stopDelta
11h 15mSEA-DLH
5/8Wed
multi-stopDelta
12h 35mDLH-SEA
$1,004

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Seattle - Duluth Flights

Departure:

Seattle (SEA)United States

Destination:

Duluth (DLH)United States

Return flight deals:

Duluth - Seattle

Cabin classes: