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Cheap flights from Duluth to Seattle (DLH - SEA) from $318

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. 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.
DLH — SEA
May 4 — May 111
From?
To?
Sat 5/4
Sat 5/11
1 adult, Economy
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The best prices from Duluth Intl to Seattle/Tacoma Intl are usually found in February or January, booked 28 days in advance, depart on a Monday or Friday and return on a Monday

Cheap flight deals from Duluth to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Duluth (DLH) to Seattle (SEA). 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 April 29, 2024.

Popular in

October

Cheapest in

February

Average price

$536

Round-trip from

$244
High demand for flights, 36% potential price rise
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Best time to find cheap flights, 34% potential price drop
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Average for round-trip flights in April 2024
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From Duluth Intl to Seattle/Tacoma Intl
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What is the cheapest day to fly round-trip from Duluth to Seattle?

Friday flights are generally found to be more expensive for flights from Duluth to Seattle. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

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

To save up to 30% on this flight, we recommend booking at least 28 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Duluth to Seattle from $320 1-2 weeks out and tickets from $907 for flights departing within the next 72 hours.

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

Due to multiple factors, expect to potentially pay more when booking in October. For low rates, February can be a great choice for travel to Seattle. Flights to Seattle from Duluth in February are about $568 on average during February, but can be found for as low as $308.

When is the cheapest time to fly from Duluth to Seattle (DLH - SEA)?

When flying from Duluth to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 21% versus a flight in the morning.

Cheap United Airlines flights from Duluth to Seattle

Explore cheap flight options specifically provided by United Airlines for the route between Duluth and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
Consider these cheap United Airlines flights we've found departing from Duluth to Seattle. Be sure to come back soon if the deals available don't appeal to you at this time.
Sat 5/113:15 pmDLH - SEA
2 stops24h 33mUnited Airlines
Sat 5/1811:45 pmSEA - DLH
1 stop19h 43mUnited Airlines
Deal found 4/28$526
Sat 5/113:15 pmDLH - SEA
2 stops24h 33mUnited Airlines
Sat 5/184:19 pmSEA - DLH
2 stops27h 09mUnited Airlines
Deal found 4/28$531
Thu 8/223:10 pmDLH - SEA
1 stop10h 49mUnited Airlines
Tue 8/2711:59 pmSEA - DLH
1 stop8h 40mUnited Airlines
Deal found 4/29$536
Thu 6/2011:22 amDLH - SEA
1 stop14h 36mUnited Airlines
Tue 6/255:10 pmSEA - DLH
1 stop15h 37mUnited Airlines
Deal found 4/28$541
Fri 8/2311:14 amDLH - SEA
1 stop13h 08mUnited Airlines
Mon 8/2611:59 pmSEA - DLH
1 stop8h 40mUnited Airlines
Deal found 4/29$561
Sat 5/117:51 amDLH - SEA
1 stop17h 00mUnited Airlines
Sat 5/184:41 pmSEA - DLH
1 stop15h 50mUnited Airlines
Deal found 4/28$606
Sat 5/113:15 pmDLH - SEA
2 stops24h 33mUnited Airlines
Sat 5/185:00 amSEA - DLH
3 stops27h 31mUnited Airlines
Deal found 4/28$650

Cheap Delta flights from Duluth to Seattle

Explore cheap flight options specifically provided by Delta for the route between Duluth and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
To aid your search, here are some of the cheapest Delta flights we've found from Duluth to Seattle. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Thu 8/2210:54 amDLH - SEA
2 stops13h 20mDelta
Mon 8/263:15 pmSEA - DLH
2 stops16h 31mDelta
Deal found 4/29$458
Thu 8/222:45 pmDLH - SEA
1 stop7h 11mDelta
Mon 8/261:30 pmSEA - DLH
2 stops18h 16mDelta
Deal found 4/29$469
Thu 8/2210:54 amDLH - SEA
2 stops14h 53mDelta
Sat 8/2412:30 amSEA - DLH
1 stop7h 16mDelta
Deal found 4/29$485
Thu 8/2210:54 amDLH - SEA
2 stops13h 20mDelta
Sun 8/257:59 pmSEA - DLH
2 stops11h 47mDelta
Deal found 4/29$490
Fri 10/115:50 pmDLH - SEA
1 stop7h 41mDelta
Mon 10/1412:35 amSEA - DLH
1 stop7h 14mDelta
Deal found 4/29$496
Fri 10/112:45 pmDLH - SEA
2 stops11h 14mDelta
Mon 10/1412:35 amSEA - DLH
1 stop7h 14mDelta
Deal found 4/29$501
Fri 10/112:45 pmDLH - SEA
2 stops11h 14mDelta
Tue 10/1510:00 amSEA - DLH
2 stops11h 48mDelta
Deal found 4/29$506
Thu 6/205:44 pmDLH - SEA
1 stop8h 11mDelta
Tue 6/255:30 amSEA - DLH
2 stops9h 32mDelta
Deal found 4/28$597
Thu 6/205:44 pmDLH - SEA
2 stops8h 15mDelta
Tue 6/255:30 amSEA - DLH
2 stops9h 32mDelta
Deal found 4/28$602

Cheap Duluth to Seattle flights in April & May 2024

Find cheap flight options from Duluth to Seattle specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,944,896 searches. Prices were last updated on April 29, 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Sat 5/113:15 pmDLH - SEA
2 stops24h 33mUnited Airlines
Sat 5/1811:45 pmSEA - DLH
1 stop19h 43mUnited Airlines
Deal found 4/28$526
Sat 5/113:15 pmDLH - SEA
2 stops24h 33mUnited Airlines
Sat 5/184:19 pmSEA - DLH
2 stops27h 09mUnited Airlines
Deal found 4/28$531
Sat 5/117:51 amDLH - SEA
1 stop17h 00mUnited Airlines
Sat 5/184:41 pmSEA - DLH
1 stop15h 50mUnited Airlines
Deal found 4/28$606
Sat 5/113:15 pmDLH - SEA
2 stops24h 33mUnited Airlines
Sat 5/185:00 amSEA - DLH
3 stops27h 31mUnited Airlines
Deal found 4/28$650

Duluth to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Duluth and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Fri 10/112:45 pmDLH - SEA
1 stop7h 25mDelta
Tue 10/154:30 pmSEA - DLH
1 stop5h 18mDelta
Deal found 4/28$496
Fri 10/112:45 pmDLH - SEA
1 stop7h 25mDelta
Tue 10/1510:00 amSEA - DLH
2 stops11h 48mDelta
Deal found 4/28$501
Tue 7/305:44 pmDLH - SEA
2 stops8h 15mDelta
Thu 8/89:25 pmSEA - DLH
2 stops10h 21mDelta
Deal found 4/28$506
Sat 5/113:15 pmDLH - SEA
2 stops24h 33mUnited Airlines
Sat 5/1811:45 pmSEA - DLH
1 stop19h 43mUnited Airlines
Deal found 4/28$526
Sat 5/113:15 pmDLH - SEA
2 stops24h 33mUnited Airlines
Sat 5/184:19 pmSEA - DLH
2 stops27h 09mUnited Airlines
Deal found 4/28$531
Thu 6/2011:22 amDLH - SEA
1 stop14h 36mUnited Airlines
Tue 6/255:10 pmSEA - DLH
1 stop15h 37mUnited Airlines
Deal found 4/28$541
Thu 6/205:44 pmDLH - SEA
1 stop8h 11mDelta
Tue 6/255:30 amSEA - DLH
2 stops9h 32mDelta
Deal found 4/28$597
Thu 6/205:44 pmDLH - SEA
2 stops8h 15mDelta
Tue 6/255:30 amSEA - DLH
2 stops9h 32mDelta
Deal found 4/28$602
Sat 5/117:51 amDLH - SEA
1 stop17h 00mUnited Airlines
Sat 5/184:41 pmSEA - DLH
1 stop15h 50mUnited Airlines
Deal found 4/28$606

One-way flights to Seattle from Duluth

Search for one-way flight options from Duluth to Seattle. 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 2,944,896 searches. Data last updated April 29, 2024.
Take a look at some of the one-way flights we've detected from Duluth to Seattle. For those needing a return trip from Duluth, there is a search form available above.
Sun 5/127:51 amDLH - SEA
2 stops17h 11mUnited Airlines
Deal found 4/28$318
Sun 5/1210:33 amDLH - SEA
1 stop8h 27mDelta
Deal found 4/28$353
Sun 5/123:15 pmDLH - SEA
3 stops33h 47mUnited Airlines
Deal found 4/28$653

Find flights from Duluth to Seattle within your budget

Customize your flight search to find flights from Duluth to Seattle 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 2,944,896 searches. Data last updated April 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$458 - $541

Route

Depart

Return

Price

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Thu 8/22

2 stops13h 20m

Seattle/Tacoma Intl

Mon 8/26

2 stops16h 31m

$458

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Thu 8/22

1 stop7h 11m

Seattle/Tacoma Intl

Mon 8/26

2 stops18h 16m

$469

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Thu 8/22

2 stops14h 53m

Seattle/Tacoma Intl

Sat 8/24

1 stop7h 16m

$485

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Thu 8/22

2 stops13h 20m

Seattle/Tacoma Intl

Sun 8/25

2 stops11h 47m

$490

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Fri 10/11

1 stop7h 25m

Seattle/Tacoma Intl

Tue 10/15

1 stop5h 18m

$496

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Sat 5/11

2 stops24h 33m

Seattle/Tacoma Intl

Sat 5/18

1 stop19h 43m

$526

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Sat 5/11

2 stops24h 33m

Seattle/Tacoma Intl

Sat 5/18

2 stops27h 09m

$531

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Thu 8/22

1 stop10h 49m

Seattle/Tacoma Intl

Tue 8/27

1 stop8h 40m

$536

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Thu 6/20

1 stop14h 36m

Seattle/Tacoma Intl

Tue 6/25

1 stop15h 37m

$541

Flights are sorted by cheapest first

Deals found on 4/29

When is the best time to book a flight from Duluth to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Duluth to Seattle. Price data was last updated on January 28, 2024.
Booking 27 days in advance of your planned departure date is, on average, the best time to get cheap flights from Duluth to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from Duluth to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Duluth to Seattle. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Duluth to Seattle flight should consider departing on Monday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Seattle by month

Plan your trip from Duluth to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from Duluth to Seattle is currently $441 while a round-trip flight costs $504. Price data was last updated on April 21, 2024.

Currently, December is the cheapest month in which you can book a flight from Duluth to Seattle (average of $244). Flying from Duluth to Seattle in July is currently the most expensive (average of $408). 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.

January

$247

February

$254

March

$288

April

$295

May

$317

June

$407

July

$408

August

$343

September

$278

October

$257

November

$258

December

$244

Temperature and rainfall in Seattle by month

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

SEA

Temperature

41 - 66.2 °F

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated April 29, 2024.
See what other customers who have flown with United Airlines and Delta from Duluth to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,913 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.4

Reviews

1 / 10

It was a good experience other than a short delay.

Delta
8.1
Very good
10,913 reviews
Delta
8.1
Very good
10,913 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.4

Reviews

1 / 10

It was a good experience other than a short delay.

United Airlines
7.4
Good
11,202 reviews
Delta
8.1
Very good
10,913 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.4

Reviews

1 / 10

It was a good experience other than a short delay.

Related info for your journey

Find useful and relevant information for your journey from Duluth to Seattle. 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 Duluth to Seattle for under $500 on Cheapflights?

    Yes, there are multiple flights from Duluth to Seattle for under $500. The cheapest flight booked recently is on Delta for just $458, but on average you can expect to pay $561.

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

    Currently priced at $458, Delta will fly you from Duluth to Seattle and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $526. Delta is 19% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The most popular airlines flying from Duluth to Seattle are Delta, Sun Country Air and United Airlines. Something to consider prior to booking your flight.

  • What does DLH to SEA mean?

    DLH and SEA are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. DLH to SEA refers to a flight route from Duluth Intl Airport to Seattle/Tacoma Intl Airport.

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

    The amount of baggage you can bring on your Duluth to Seattle 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 Duluth to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Duluth to Seattle 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 Duluth to Seattle that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Duluth to Seattle 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 Duluth to Seattle that allow pets onboard?

    Many airlines flying from Duluth to Seattle 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 Duluth to Seattle?

    Yes, you can often find last-minute deals on Duluth to Seattle 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 Duluth to Seattle flight deals updated?

    The Duluth to Seattle flight deals you see on this page were last updated on 4/28.

See more FAQs

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Top 3 airlines flying from Duluth to Seattle

Discover the top 3 airlines that operate flights from Duluth to Seattle. 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 2,944,896 searches. Data last updated April 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$218Average$406FlexibilityNo cancel feeOn-time83%
Search Sun Country Air flights
DeltaCheapest$320Average$586FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$348Average$692FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Duluth to Seattle by cabin class

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

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Duluth to Seattle?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Duluth to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Duluth to Seattle?

Cheapflights simply makes it quick and affordable to book flights from Duluth to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Duluth to Seattle with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Duluth to Seattle, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Duluth to Seattle become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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