Cheap flights from Duluth to Seattle (DLH - SEA) from $268

This is the cheapest one-way flight price, found on 5/31. Prices may vary by date and flight preferences.
DLH — SEA
Jun 6 — Jun 131

How to find the cheapest flight from Duluth (DLH) to Seattle (SEA)

All the information you need to plan the best DLH to SEA flight in 2023: compare Duluth to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.

Popular in

July

Cheapest in

April

Average price

$497

Round-trip from

$237
High demand for flights, 47% potential price rise
Best time to find cheap flights, 39% potential price drop
Average for round-trip flights in June 2023
From Duluth Intl to Seattle/Tacoma Intl

DLH - SEA

Price

$237 - $574

SEA

Temperature

41 - 66.2 °F

SEA

Rainfall

0.7 - 6.6 inches

Cheap flights from Duluth to Seattle in June, July 2023

The best prices found for DLH to SEA flights for June, July
These are some of the best deals we've found on flights to Seattle in 2023 at this time. More deals are always being added, so be sure to check back regularly.

Duluth to Seattle 2023 flight deals

Cheap flights to Seattle from Duluth found for this year
These are some of the best deals we've found on flights to Seattle in 2023 at this time. More deals are always being added, so be sure to check back regularly.

Cheap Delta flights from Duluth to Seattle

Consider these cheap Delta 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.

Cheap United Airlines flights from Duluth to Seattle

To aid your search, here are some of the cheapest United Airlines 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.

One-way flights to Seattle from Duluth

The cheapest one-way flights from Duluth to Seattle
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.

Find flights from Duluth to Seattle within your budget

Use the slider to find flights from Duluth to Seattle that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$355 - $521

Route

Depart

Return

Price

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Wed 8/23

1 stop19h 36m

Seattle/Tacoma Intl

Mon 8/28

1 stop19h 10m

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Wed 8/23

1 stop10h 32m

Seattle/Tacoma Intl

Mon 8/28

2 stops17h 01m

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Thu 8/24

1 stop8h 59m

Seattle/Tacoma Intl

Mon 8/28

2 stops17h 01m

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Thu 10/12

1 stop7h 36m

Seattle/Tacoma Intl

Sat 10/14

1 stop7h 47m

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Wed 8/23

2 stops17h 40m

Seattle/Tacoma Intl

Mon 8/28

2 stops17h 01m

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Thu 8/24

1 stop8h 59m

Seattle/Tacoma Intl

Mon 8/28

1 stop19h 10m

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Sun 9/24

2 stops14h 59m

Seattle/Tacoma Intl

Mon 10/2

1 stop7h 47m

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Fri 10/27

1 stop5h 55m

Seattle/Tacoma Intl

Mon 10/30

1 stop4h 44m

Duluth IntlSeattle/Tacoma Intl

DLH - SEA

DLHSEA

Duluth Intl

Fri 9/22

2 stops14h 59m

Seattle/Tacoma Intl

Tue 10/3

1 stop7h 30m

Flights are sorted by cheapest first

Deals found on 6/1

Reviews of Airlines Servicing Seattle

See what other customers who have flown with Delta and United Airlines 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
8.0
Very good
2,369 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

8.0

Reviews

1 / 10

Over head compartment seemed a little small but wasn’t overloaded. The Airbus plane had 2 seats on one side and 3 on the other. My wife especially liked the fact we only had 2 seats on our side of the plane. I like being at the window she likes being on the aisle not middle seat. She appreciated have her own video screen with lots of movies available on the back of the seat in front of us. She also appreciated that the flight was on time. The crew was great.

Delta
8.0
Very good
2,369 reviews
Delta
8.0
Very good
2,369 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

8.0

Reviews

1 / 10

Over head compartment seemed a little small but wasn’t overloaded. The Airbus plane had 2 seats on one side and 3 on the other. My wife especially liked the fact we only had 2 seats on our side of the plane. I like being at the window she likes being on the aisle not middle seat. She appreciated have her own video screen with lots of movies available on the back of the seat in front of us. She also appreciated that the flight was on time. The crew was great.

United Airlines
7.6
Good
1,531 reviews
Delta
8.0
Very good
2,369 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

8.0

Reviews

1 / 10

Over head compartment seemed a little small but wasn’t overloaded. The Airbus plane had 2 seats on one side and 3 on the other. My wife especially liked the fact we only had 2 seats on our side of the plane. I like being at the window she likes being on the aisle not middle seat. She appreciated have her own video screen with lots of movies available on the back of the seat in front of us. She also appreciated that the flight was on time. The crew was great.

Related info for your journey

Useful info, stats and facts about Duluth to Seattle flights.

Alternative routes for Duluth to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Duluth to Seattle

The chart below displays the airlines Cheapflights users traveling from Duluth to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Sun Country AirCheapest$202Average$373FlexibilityNo cancel feeOn-time83%COVID-19 safety
Search Sun Country Air flights
DeltaCheapest$246Average$582FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
United AirlinesCheapest$318Average$532FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
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