HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Seattle to Duluth (SEA - DLH) from $326

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. 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.
SEA — DLH
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Cheap flight deals from Seattle to Duluth

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Duluth (DLH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 6, 2024.

Popular in

December

Cheapest in

February

Average price

$837

Round-trip from

$361
High demand for flights, 34% potential price rise
Search Deals
Best time to find cheap flights, 40% potential price drop
Search Deals
Average for round-trip flights in June 2024
Search Deals
From Seattle/Tacoma Intl to Duluth Intl
Search Deals

What is the cheapest day to fly round-trip from Seattle to Duluth?

Flying to your destination on a Thursday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Duluth. Check prices with Cheapflights to find a great deal for your trip.

What is the cheapest month to fly from Seattle to Duluth?

February can be a great time to fly to Duluth from Seattle with a flight ticket averaging about $630. Cheapflights users have found deals in the month of February for as cheap as $360. The most expensive prices can be found in the month of December.

What is the cheapest time of day to fly from SEA to DLH?

It’s typically best to fly out from Seattle to Duluth in the evening. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap Seattle to Duluth flights in June & July 2024

Find cheap flight options from Seattle to Duluth specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
These are some of the most attractive deals on flights from Seattle to Duluth in 2024. Check back in a little while for more flight options.
Fri 7/266:21 pmSEA - DLH
2 stops13h 56mDelta
Wed 7/315:20 amDLH - SEA
2 stops19h 03mDelta
Deal found 6/5$387
Fri 7/269:00 amSEA - DLH
2 stops23h 17mDelta
Fri 8/25:20 amDLH - SEA
2 stops19h 03mDelta
Deal found 6/5$397
Tue 7/237:00 amSEA - DLH
2 stops14h 49mDelta
Wed 7/315:20 amDLH - SEA
2 stops16h 36mDelta
Deal found 6/5$415
Mon 7/229:00 amSEA - DLH
2 stops23h 17mDelta
Wed 7/315:20 amDLH - SEA
2 stops19h 03mDelta
Deal found 6/5$420
Tue 7/237:00 amSEA - DLH
2 stops14h 49mDelta
Sat 8/35:20 amDLH - SEA
2 stops19h 03mDelta
Deal found 6/5$425
Fri 7/269:00 amSEA - DLH
2 stops23h 17mDelta
Sun 8/45:20 amDLH - SEA
2 stops20h 38mDelta
Deal found 6/5$427
Mon 7/229:00 amSEA - DLH
2 stops23h 17mDelta
Thu 8/15:20 amDLH - SEA
2 stops20h 38mDelta
Deal found 6/5$430
Fri 7/269:00 amSEA - DLH
2 stops23h 17mDelta
Sat 8/33:13 pmDLH - SEA
1 stop7h 27mDelta
Deal found 6/5$433
Fri 7/266:21 pmSEA - DLH
2 stops13h 56mDelta
Tue 8/65:20 amDLH - SEA
2 stops16h 36mDelta
Deal found 6/5$442

Seattle to Duluth 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Duluth in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
These are some of the most attractive deals on flights from Seattle to Duluth in 2024. Check back in a little while for more flight options.
Mon 11/1112:35 amSEA - DLH
1 stop7h 14mDelta
Sat 11/1610:54 amDLH - SEA
1 stop7h 26mDelta
Deal found 6/5$326
Fri 7/266:21 pmSEA - DLH
2 stops13h 56mDelta
Wed 7/315:20 amDLH - SEA
2 stops19h 03mDelta
Deal found 6/5$387
Fri 7/269:00 amSEA - DLH
2 stops23h 17mDelta
Fri 8/25:20 amDLH - SEA
2 stops19h 03mDelta
Deal found 6/5$397
Tue 11/126:39 amSEA - DLH
2 stops12h 43mUnited Airlines
Sat 11/1611:26 amDLH - SEA
1 stop9h 33mUnited Airlines
Deal found 6/5$411
Tue 7/237:00 amSEA - DLH
2 stops14h 49mDelta
Wed 7/315:20 amDLH - SEA
2 stops16h 36mDelta
Deal found 6/5$415
Tue 11/1210:51 pmSEA - DLH
2 stops13h 42mUnited Airlines
Sat 11/163:14 pmDLH - SEA
2 stops9h 56mUnited Airlines
Deal found 6/5$416
Mon 7/229:00 amSEA - DLH
2 stops23h 17mDelta
Wed 7/315:20 amDLH - SEA
2 stops19h 03mDelta
Deal found 6/5$420
Tue 11/128:52 amSEA - DLH
2 stops10h 30mUnited Airlines
Sat 11/167:53 amDLH - SEA
3 stops14h 59mUnited Airlines
Deal found 6/5$421
Tue 7/237:00 amSEA - DLH
2 stops14h 49mDelta
Sat 8/35:20 amDLH - SEA
2 stops19h 03mDelta
Deal found 6/5$425

Seattle to Duluth flights leaving soon

Find last-minute flight options from Seattle to Duluth for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Check out these flights departing soon from Seattle to Duluth. Users should examine the flight details to ensure there are no surprises.
Fri 6/1411:59 pmSEA - DLH
1 stop19h 34mUnited Airlines
Tue 6/188:00 amDLH - SEA
1 stop16h 23mUnited Airlines
Deal found 6/4$622
Fri 6/1411:59 pmSEA - DLH
1 stop19h 34mUnited Airlines
Mon 6/1711:22 amDLH - SEA
1 stop24h 25mUnited Airlines
Deal found 6/4$642
Wed 6/127:00 amSEA - DLH
1 stop12h 33mUnited Airlines
Tue 6/188:00 amDLH - SEA
1 stop12h 40mUnited Airlines
Deal found 6/4$647
Wed 6/125:05 amSEA - DLH
2 stops14h 28mUnited Airlines
Tue 6/188:00 amDLH - SEA
1 stop16h 23mUnited Airlines
Deal found 6/4$652
Sat 6/157:00 amSEA - DLH
1 stop12h 33mUnited Airlines
Tue 6/188:00 amDLH - SEA
1 stop12h 40mUnited Airlines
Deal found 6/4$661
Wed 6/127:00 amSEA - DLH
1 stop12h 33mUnited Airlines
Thu 6/2011:22 amDLH - SEA
1 stop14h 36mUnited Airlines
Deal found 6/4$667
Wed 6/125:05 amSEA - DLH
2 stops14h 28mUnited Airlines
Mon 6/173:17 pmDLH - SEA
1 stop20h 30mUnited Airlines
Deal found 6/4$672
Sat 6/157:00 amSEA - DLH
1 stop12h 33mUnited Airlines
Mon 6/1711:22 amDLH - SEA
1 stop24h 25mUnited Airlines
Deal found 6/4$681
Fri 6/1411:59 pmSEA - DLH
1 stop19h 34mUnited Airlines
Fri 6/218:00 amDLH - SEA
1 stop16h 23mUnited Airlines
Deal found 6/4$686

One-way flights to Duluth from Seattle

Search for one-way flight options from Seattle to Duluth. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Users traveling one-way from Seattle to Duluth can select one of these great deals. Users in need of a round-trip flight from Seattle to Duluth instead should update the search form at the top of page.
Thu 6/2012:25 amSEA - DLH
1 stop7h 52mDelta
Deal found 6/4$384
Sun 8/411:47 pmSEA - DLH
1 stop8h 45mUnited Airlines
Deal found 6/6$409
Sat 8/312:30 amSEA - DLH
1 stop12h 02mUnited Airlines
Deal found 6/6$423
Sun 8/410:30 pmSEA - DLH
2 stops21h 07mUnited Airlines
Deal found 6/6$443
Fri 6/2111:59 pmSEA - DLH
1 stop32h 48mUnited Airlines
Deal found 6/4$483
Sat 6/2912:30 amSEA - DLH
1 stop8h 02mUnited Airlines
Deal found 6/5$528
Fri 6/213:35 pmSEA - DLH
2 stops21h 07mUnited Airlines
Deal found 6/4$548
Sun 6/307:45 pmSEA - DLH
2 stops12h 32mDelta
Deal found 6/5$563
Sun 8/43:35 pmSEA - DLH
3 stops16h 57mUnited Airlines
Deal found 6/6$628

Find flights from Seattle to Duluth within your budget

Customize your flight search to find flights from Seattle to Duluth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$326 - $482

Route

Depart

Return

Price

Seattle/Tacoma IntlDuluth Intl

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Mon 11/11

1 stop7h 14m

Duluth Intl

Sat 11/16

1 stop7h 26m

$326

Seattle/Tacoma IntlDuluth Intl

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Fri 7/26

2 stops13h 56m

Duluth Intl

Wed 7/31

2 stops19h 03m

$387

Seattle/Tacoma IntlDuluth Intl

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Fri 7/26

2 stops23h 17m

Duluth Intl

Fri 8/2

2 stops19h 03m

$397

Seattle/Tacoma IntlDuluth Intl

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Tue 11/12

2 stops12h 43m

Duluth Intl

Sat 11/16

1 stop9h 33m

$411

Seattle/Tacoma IntlDuluth Intl

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Tue 7/23

2 stops14h 49m

Duluth Intl

Wed 7/31

2 stops16h 36m

$415

Seattle/Tacoma IntlDuluth Intl

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Tue 11/12

2 stops13h 42m

Duluth Intl

Sat 11/16

2 stops9h 56m

$416

Seattle/Tacoma IntlDuluth Intl

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Mon 7/22

2 stops23h 17m

Duluth Intl

Wed 7/31

2 stops19h 03m

$420

Seattle/Tacoma IntlDuluth Intl

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Tue 11/12

2 stops10h 30m

Duluth Intl

Sat 11/16

3 stops14h 59m

$421

Seattle/Tacoma IntlDuluth Intl

SEA - DLH

SEADLH

Seattle/Tacoma Intl

Tue 9/17

1 stop8h 40m

Duluth Intl

Sun 9/22

1 stop27h 48m

$482

Flights are sorted by cheapest first

Deals found on 6/5

What is the cheapest day to fly from Seattle to Duluth?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Duluth. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Duluth flight should consider departing on Monday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Seattle to Duluth

Have a flexible travel schedule? Discover the best time to fly to Duluth from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Duluth by month

Plan your trip to Duluth by taking into account the average temperature and rainfall totals by month.

DLH

Temperature

12.2 - 66.2 °F

If weather is an important factor for your trip to Duluth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.2 F).

Reviews of airlines servicing Duluth

Get insights into the airlines that provide service to Duluth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Duluth. Reviews last updated June 6, 2024.
Peruse reviews from past customers who have flown with United Airlines and Delta from Seattle to Duluth to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up

Delta
8.0
Very good
10,368 reviews
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up

United Airlines
7.4
Good
10,696 reviews
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

The seats were wayyyy too small! If you are a larger person buying 2 seats would not work as arm rests do not go up

Related info for your journey

Find useful and relevant information for your journey from Seattle to Duluth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Seattle to Duluth for under $400 on Cheapflights?

    Yes, there are multiple flights from Seattle to Duluth for under $400. The cheapest flight booked recently is on Delta for just $326, but on average you can expect to pay $427.

  • Are there last-minute flights available from Seattle to Duluth for under $700?

    There are currently 20+ open flights from Seattle to Duluth within the next 7 days for less than $700.

  • What are the cheapest airlines flying from Seattle to Duluth round-trip?

    According to our current data, Delta ($326), and United Airlines ($411) offers the cheapest pricing from Seattle to Duluth. You may be able to fly from Seattle to Duluth for 48% less than the average price by searching for these airlines.

  • What does SEA to DLH mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Seattle/Tacoma Intl Airport to Duluth Intl Airport flight would often be abbreviated as a SEA to DLH flight.

  • Can I find deals for flights from Seattle to Duluth that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Duluth flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Duluth with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Duluth flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Duluth that include hotel bookings?

    Yes. In addition to deals on Seattle to Duluth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Duluth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Duluth.

  • Can I find deals for business class flights from Seattle to Duluth?

    Yes. Cheapflights offers flight deals from Seattle to Duluth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seattle to Duluth that allow pets onboard?

    Many airlines flying from Seattle to Duluth offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Duluth?

    Yes, you can often find last-minute deals on Seattle to Duluth flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Duluth flight deals updated?

    The Seattle to Duluth flight deals you see on this page were last updated on 6/5.

  • What are the most popular airlines that fly from Seattle to Duluth?

    Consider Delta, Sun Country Air or United Airlines when booking your flight. These represent the most popular airlines when flying from Seattle to Duluth.

  • What is the cheapest month to book a flight from Seattle to Duluth?

    Currently, March is the cheapest month in which you can book a flight from Seattle to Duluth (average of $361). Flying from Seattle to Duluth in June is currently the most expensive (average of $584). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Duluth
See prices for flight routes from nearby airports that may be better suited for you.

Seattle to Minneapolis flights
Portland to Minneapolis flights
Spokane to Minneapolis flights
Seattle to Sioux Falls flights
Seattle to Fargo flights
Portland to Sioux Falls flights
Portland to Fargo flights
Portland to Duluth flights
Pasco to Minneapolis flights
Seattle to Rochester flights
Seattle to Bemidji flights
Spokane to Fargo flights
Portland to Bemidji flights
Bellingham to Minneapolis flights
Portland to Rochester flights
Spokane to Sioux Falls flights
Spokane to Duluth flights
Bellingham to Fargo flights
Portland to La Crosse flights
Pullman to Minneapolis flights
Wenatchee to Minneapolis flights
Bellingham to La Crosse flights
Walla Walla to Minneapolis flights
Pasco to Duluth flights
Portland to Thief River Falls flights
Seattle to Brainerd flights
Seattle to Hibbing flights
Seattle to La Crosse flights

Top 3 airlines flying from Seattle to Duluth

Discover the top 3 airlines that operate flights from Seattle to Duluth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$218Average$436FlexibilityNo cancel feeOn-time83%
DeltaCheapest$360Average$667FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$442Average$542FlexibilityNo cancel feeOn-time69%
Washington, D.C. to Orlando flights
Seattle to Los Angeles flights
USA to Russia flights
Nashville to Denver flights
Atlanta to Jamaica flights
Salt Lake City to Los Angeles flights
New York John F Kennedy Intl Airport to Miami flights
Los Angeles to Italy flights
USA to Nigeria flights
USA to Sweden flights
Dallas to New York flights
Seattle to Dali flights

Search flights from Seattle to Duluth by cabin class

Find flights from Seattle to Duluth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Gaziantep
Flights to Miyakojima Hirara
Flights to Figari-Sud Corse
Flights to Mason City
Flights to Komatsu
Flights to Sendai
Flights to Rhinelander Oneida County
Flights to Constanţa Mihail Kogalniceanu
Flights to Brainerd Crow Wing County
Flights to Reus
Flights to Virac
Flights to Neiva La Marguita
Flights to Pellston Emmet County
Flights to Urumqi
Flights to Bastia Poretta
Flights to Samos
Flights to Hyannis Barnstable
Flights to Provincetown
Flights to Alghero-Fertilia
Flights to Laayoune Hassan I
Flights to Devils Lake
Flights to Vava'u Lupepau'U
Flights to Hakodate
Flights to Edremit/Korfez
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines