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CA $364 Cheap Flights from Seattle (SEA) to Duluth (DLH)

View CA $364 flight on Thu, Aug 6, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Duluth, MN (DLH-Duluth Intl.)

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Cheap flights from Seattle (SEA) to Duluth (DLH)

Prices were available within the past 7 days and start at CA $364 for one-way flights and CA $587 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Sep 1 - Sat, Sep 12
SEA
Seattle
DLH
Duluth
CA $587 Roundtrip, found 3 days ago
CA $587
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Sep 1 from Seattle to Duluth, returning Sat, Sep 12, priced at CA $587 found 3 days ago
Delta
Tue, Sep 1 - Tue, Sep 15
SEA
Seattle
DLH
Duluth
CA $629 Roundtrip, found 3 days ago
CA $629
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Sep 1 from Seattle to Duluth, returning Tue, Sep 15, priced at CA $629 found 3 days ago
Sun Country Airlines
Thu, Aug 6 - Sat, Aug 15
SEA
Seattle
DLH
Duluth
CA $644 Roundtrip, found 3 days ago
CA $644
Roundtrip
found 3 days ago
Select Sun Country Airlines flight, departing Thu, Aug 6 from Seattle to Duluth, returning Sat, Aug 15, priced at CA $644 found 3 days ago
Delta
Wed, Aug 26 - Sat, Sep 12
SEA
Seattle
DLH
Duluth
CA $657 Roundtrip, found 3 days ago
CA $657
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Aug 26 from Seattle to Duluth, returning Sat, Sep 12, priced at CA $657 found 3 days ago
Delta
Fri, Aug 21 - Sat, Sep 5
SEA
Seattle
DLH
Duluth
CA $679 Roundtrip, found 3 days ago
CA $679
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Aug 21 from Seattle to Duluth, returning Sat, Sep 5, priced at CA $679 found 3 days ago
Delta
Thu, Aug 27 - Sat, Sep 12
SEA
Seattle
DLH
Duluth
CA $685 Roundtrip, found 3 days ago
CA $685
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Aug 27 from Seattle to Duluth, returning Sat, Sep 12, priced at CA $685 found 3 days ago
Delta
Wed, Aug 26 - Tue, Sep 15
SEA
Seattle
DLH
Duluth
CA $700 Roundtrip, found 3 days ago
CA $700
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Aug 26 from Seattle to Duluth, returning Tue, Sep 15, priced at CA $700 found 3 days ago
Delta
Sun, Aug 30 - Sat, Sep 12
SEA
Seattle
DLH
Duluth
CA $714 Roundtrip, found 3 days ago
CA $714
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Aug 30 from Seattle to Duluth, returning Sat, Sep 12, priced at CA $714 found 3 days ago
Delta
Thu, Aug 27 - Tue, Sep 15
SEA
Seattle
DLH
Duluth
CA $728 Roundtrip, found 3 days ago
CA $728
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Aug 27 from Seattle to Duluth, returning Tue, Sep 15, priced at CA $728 found 3 days ago
United
Wed, Aug 19 - Tue, Sep 8
SEA
Seattle
DLH
Duluth
CA $1,014 Roundtrip, found 3 days ago
CA $1,014
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 19 from Seattle to Duluth, returning Tue, Sep 8, priced at CA $1,014 found 3 days ago

Alternative airports near Duluth

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Duluth Intl. DLH. Cheapest and Closest option available. Average driving time to city centre is 11 minutes. Flights from CA $905
DLH
Duluth Intl.
CheapestClosest
Average driving time to city centre11 min
Flights from CA $905

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.) cost?
You can find one-way and return flights from SEA to DLH with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SEA to DLH ticket fares go up or down.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
If you're looking for the most budget-friendly time to fly from Seattle - Tacoma Intl. (SEA) to Duluth Intl. (DLH), December is typically the cheapest month. You can expect average return flight prices around CA$440 during this time. December often sees lower fares because it's just before the peak holiday travel season, or after the initial rush, when demand for flights tends to dip. Other good months to find deals on this route include June and September.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
Enter SEA to DLH and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
Sun Country Airlines is one of the cheapest airlines offering connecting return flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.), with tickets starting from around CA$581 for flights that can be booked for departure within the next year. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
The cheapest months to fly from Seattle - Tacoma Intl. (SEA) to Duluth Intl. (DLH) are typically December and June, with average return flights costing around CA$440. While these months offer the best value, it's always a good idea to check specific dates for the best deals that fit your travel plans.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
There are approximately 29 connecting flights per day from Seattle - Tacoma Intl. (SEA) to Duluth Intl. (DLH). Some common connection points include Denver Intl. (DEN), San Francisco Intl. (SFO), and O'Hare Intl. (ORD).
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
The earliest flight from Seattle - Tacoma Intl. (SEA) to Duluth Intl. (DLH) typically departs around 12:15 AM local time. This flight is operated by Alaska Airlines and United. This is a seasonal service, active only in October. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
You'll find the most flights from Seattle - Tacoma Intl. (SEA) to Duluth Intl. (DLH) on a Thursday, with around 16 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, Delta, and Sun Country Airlines. Thursdays offer notably more flight options compared to other days of the week, so you'll have more flexibility in choosing your departure time.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Duluth Intl. (DLH) are in the early morning, from 6am to 9am. Many major carriers, including Delta, United and Sun Country Airlines, offer flights during this window. Many travellers prefer these times because it allows them to start their travel day early and arrive at their destination with plenty of time left in the day.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
There are no nonstop flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.). The distance between these two cities is approximately 2264 kilometres. If you're looking for a flight with one stop, the typical travel time is around 9 hours. Flights with two or more stops usually take longer, averaging about 13 hours. Keep in mind that actual flight times can vary based on factors like layover duration, routing, and weather conditions.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
You can fly business class or first class between SEA and DLH. First class cabins are available on Delta and United.
How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Duluth, MN (DLH) from Seattle, WA (SEA)?
If you're planning to travel to Duluth from Seattle - Tacoma Intl. (SEA), you can fly directly into Duluth Intl. (DLH) which offers international flights and connections. Some flights may connect through major hubs like Denver Intl. (DEN), San Francisco Intl. (SFO), or George Bush Intercontinental (IAH) before reaching Duluth. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Duluth, MN (DLH-Duluth Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Duluth Intl.
Roundtrip price
CA $587
Distance
2251 km

Book with confidence

Seattle to Duluth Flights

The easy way to book your flights from Seattle to Duluth 

With Expedia, it’s simple to find and book flights to Duluth from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Duluth Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Duluth today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Duluth Intl., DLH 

Sort your search results by price to find great deals on your flight from Seattle to Duluth—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Duluth from Seattle currently is just CA $587 rising to CA $1,014.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Duluth  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Duluth from Seattle 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Duluth with Expedia today.

Seattle to Duluth Flights

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