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$265+ Cheap flights from Wilmington to Seattle (ILM - SEA)

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
ILM — SEA
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Wilmington to Seattle

Cheapest flights from Wilmington to Seattle
Explore the most affordable flight options available from Wilmington to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:49 pm
ILM
-
SEA
1 stop9h 09m
Delta
Sun 4/2611:00 pm
SEA
-
ILM
1 stop7h 39m
Delta
Deal found 1/19$329
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/82:23 pm
ILM
-
SEA
1 stop10h 42m
Delta
Sat 4/1811:00 pm
SEA
-
ILM
1 stop7h 39m
Delta
Deal found 1/19$359
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:23 am
ILM
-
SEA
2 stops11h 02m
American Airlines
Sat 3/710:57 pm
SEA
-
ILM
1 stop7h 44m
American Airlines
Deal found 1/19$364
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/272:33 pm
ILM
-
SEA
1 stop9h 06m
American Airlines
Wed 10/711:53 pm
SEA
-
ILM
1 stop9h 18m
American Airlines
Deal found 1/20$379
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/46:00 am
ILM
-
SEA
1 stop8h 45m
American Airlines
Sun 2/88:35 am
SEA
-
ILM
1 stop9h 40m
American Airlines
Deal found 1/19$389
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/82:23 pm
ILM
-
SEA
1 stop10h 42m
Delta
Wed 4/224:05 pm
SEA
-
ILM
1 stop14h 34m
Delta
Deal found 1/19$407
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/25:41 pm
ILM
-
SEA
1 stop8h 34m
Delta
Tue 2/106:05 am
SEA
-
ILM
2 stops14h 46m
Delta
Deal found 1/19$408
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 am
ILM
-
SEA
2 stops14h 26m
Delta
Mon 4/209:45 pm
SEA
-
ILM
1 stop8h 54m
Delta
Deal found 1/19$417
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/82:23 pm
ILM
-
SEA
1 stop10h 42m
Delta
Mon 4/2011:14 pm
SEA
-
ILM
2 stops19h 32m
Delta
Deal found 1/19$426
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:49 pm
ILM
-
SEA
1 stop19h 10m
Delta
Sun 4/199:45 pm
SEA
-
ILM
1 stop8h 54m
Delta
Deal found 1/19$427

Find flight deals from Wilmington to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Wilmington (ILM) 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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$329
(Delta)

One-way from

$265
(Kiwi.com)

Popular in

April

Cheapest in

September

Average price

$503
Provider with most accurate pricing for Wilmington New Hanover County-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Wilmington New Hanover County-Seattle/Tacoma Intl flights.
Search Deals
From Wilmington New Hanover County to Seattle/Tacoma Intl
Search Deals
One-way flight from Wilmington New Hanover County to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Wilmington 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 2,558,603 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Wilmington to Seattle that are best for you.

Fly from

Wilmington

Fly to

Seattle

Route

Depart

Return

Price

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 4/22

5:49 pm-11:58 pm

1 stop9h 09m

Seattle/Tacoma Intl

Sun 4/26

11:00 pm-9:39 am

1 stop7h 39m

$329

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 3/17

3:17 pm-11:04 pm

1 stop10h 47m

Seattle/Tacoma Intl

Tue 3/24

12:27 pm-10:56 pm

1 stop7h 29m

$329

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 3/25

6:30 am-12:54 pm

1 stop9h 24m

Seattle/Tacoma Intl

Mon 3/30

10:57 pm-11:32 am

1 stop9h 35m

$329

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Fri 3/27

5:11 pm-12:55 am

1 stop10h 44m

Seattle/Tacoma Intl

Mon 3/30

10:57 pm-11:32 am

1 stop9h 35m

$359

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Mon 2/2

5:41 pm-11:15 pm

1 stop8h 34m

Seattle/Tacoma Intl

Tue 2/10

6:05 am-11:51 pm

2 stops14h 46m

$408

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Mon 2/2

5:41 pm-11:15 pm

1 stop8h 34m

Seattle/Tacoma Intl

Mon 2/9

11:17 am-9:33 am

2 stops19h 16m

$427

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 2/3

5:41 pm-11:15 pm

1 stop8h 34m

Seattle/Tacoma Intl

Wed 2/11

4:05 pm-1:32 pm

1 stop18h 27m

$437

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 2/4

5:41 pm-11:15 pm

1 stop8h 34m

Seattle/Tacoma Intl

Tue 2/10

4:05 pm-4:56 pm

1 stop21h 51m

$437

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Mon 5/11

3:39 pm-9:27 am

3 stops44h 48m

$265

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 5/27

3:05 pm-10:58 pm

1 stop10h 53m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 17 results
1
2

Compare providers for flights from Wilmington to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Wilmington to Seattle in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Wilmington-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Wilmington-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Wilmington-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Wilmington-Seattle flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Wilmington-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Wilmington to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Wilmington 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.

Cheapflights Insights

Everything you need to know about your flight from Wilmington to Seattle

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

Currently, June is the cheapest month in which you can book a flight from Wilmington to Seattle (average of $235). Flying from Wilmington to Seattle in July is currently the most expensive (average of $352). 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.

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 January 21, 2026.
Read through reviews of airlines operating flights from Wilmington to Seattle, such as Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,089 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,174 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

  • How long is the flight from Wilmington to Seattle?

    Airlines like Delta and American Airlines fly from Wilmington to Seattle in about 9h 09m. The time it takes to get you to your destination can typically vary by up to 1h 38m. Wilmington and Seattle are separated by a distance of 2452 mi. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from Wilmington to Seattle round-trip from $308. Another airline that can offer you cheap pricing is Delta. American Airlines is 40% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Wilmington 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.

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

    Currently, June is the cheapest month in which you can book a flight from Wilmington to Seattle (average of $235). Flying from Wilmington to Seattle in July is currently the most expensive (average of $352). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Wilmington to Seattle

Discover the top 2 airlines that operate flights from Wilmington 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 2,558,603 searches. Data last updated January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$308Average$532FlexibilityNo cancel feeOn-time71%
DeltaCheapest$328Average$653FlexibilityNo cancel feeOn-timeN/A

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