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$215+ 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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
ILM — SEA
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
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 December 28, 2025.

This United Airlines deal was found by Cheapflights users on 12/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amILM - SEA
2 stops16h 44mUnited Airlines
Mon 1/58:57 amSEA - ILM
2 stops11h 47mUnited Airlines
Deal found 12/27$1,320
This United Airlines deal was found by Cheapflights users on 12/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amILM - SEA
2 stops15h 46mUnited Airlines
Sun 1/411:59 pmSEA - ILM
2 stops13h 24mUnited Airlines
Deal found 12/25$1,855
This Delta deal was found by Cheapflights users on 12/25. 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 12/295:31 pmILM - SEA
1 stop9h 27mDelta
Sun 1/45:45 pmSEA - ILM
2 stops13h 12mDelta
Deal found 12/25$1,895
This American Airlines deal was found by Cheapflights users on 12/25. 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.
Mon 12/291:21 pmILM - SEA
1 stop10h 49mAmerican Airlines
Sun 1/45:23 amSEA - ILM
1 stop13h 48mAmerican Airlines
Deal found 12/25$1,926

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 December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$329
(Delta)

One-way from

$215
(Kiwi.com)

Popular in

April

Cheapest in

September

Average price

$519
Provider with most accurate pricing for Wilmington New Hanover County-Seattle/Tacoma Intl flight deals.
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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. 12% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 28, 2025.
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

Sat 1/17

3:58 pm-10:07 pm

1 stop9h 09m

Seattle/Tacoma Intl

Fri 1/23

12:45 pm-10:57 pm

1 stop7h 12m

$329

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Fri 1/23

5:41 pm-11:15 pm

1 stop8h 34m

Seattle/Tacoma Intl

Mon 1/26

10:59 pm-9:38 am

1 stop7h 39m

$329

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Thu 2/5

7:12 am-3:34 pm

1 stop11h 22m

Seattle/Tacoma Intl

Mon 2/9

8:04 am-8:28 pm

2 stops9h 24m

$334

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 1/14

2:00 pm-7:04 pm

1 stop8h 04m

Seattle/Tacoma Intl

Tue 1/20

9:45 pm-9:26 am

1 stop8h 41m

$359

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Fri 4/10

2:08 pm-12:30 pm

3 stops25h 22m

$264

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Fri 4/10

2:23 pm-10:02 pm

1 stop10h 39m

$289

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Sun 3/15

5:05 pm-9:14 pm

2 stops31h 09m

$684

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Wilmington-Seattle flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 28, 2025.
Read through reviews of airlines operating flights from Wilmington to Seattle, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,072 reviews

Entertainment

6.9

Food

6.5

Comfort

7.2

Crew

8.0

Boarding

7.5

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,072 reviews
American Airlines
7.2
Good
11,072 reviews

Entertainment

6.9

Food

6.5

Comfort

7.2

Crew

8.0

Boarding

7.5

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

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 . Wilmington and Seattle are separated by a distance of 2452 mi.

  • What is the cheapest airline to fly from Wilmington to Seattle round-trip?

    Cheapflights users have booked flights from Wilmington to Seattle round-trip from $308. 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
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Kent
Tukwila
Cle Elum
Marysville
Fife
Aberdeen
Shoreline
Centralia
Federal Way
Chehalis

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Top airline flying from Wilmington to Seattle

Discover the top airline 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$308Average$537FlexibilityNo cancel feeOn-time71%

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