HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$172+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
ILM — SEA
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Wilmington to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 septiembre 16, 2025.

Round-trip from

$309
(American Airlines)

One-way from

$172
(Kiwi.com)

Popular in

April

Cheapest in

September

Average price

$338
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. 5% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 septiembre 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/14. 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.
sáb. 11/85:05 amILM - SEA
1 stop10h 48mAmerican Airlines
mié. 11/196:19 amSEA - ILM
1 stop9h 32mAmerican Airlines
Deal found 9/14$309
This American Airlines deal was found by Cheapflights users on 9/16. 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.
mar. 10/212:37 pmILM - SEA
1 stop10h 41mAmerican Airlines
mar. 10/287:10 amSEA - ILM
1 stop8h 20mAmerican Airlines
Deal found 9/16$310
This American Airlines deal was found by Cheapflights users on 9/14. 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.
vie. 10/106:29 pmILM - SEA
1 stop7h 27mAmerican Airlines
sáb. 11/17:10 amSEA - ILM
1 stop8h 56mAmerican Airlines
Deal found 9/14$339
This Delta deal was found by Cheapflights users on 9/14. 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.
mar. 10/215:55 pmILM - SEA
1 stop8h 59mDelta
mar. 10/285:59 pmSEA - ILM
2 stops16h 37mDelta
Deal found 9/14$379
This American Airlines deal was found by Cheapflights users on 9/15. 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.
mar. 10/76:00 amILM - SEA
1 stop8h 30mAmerican Airlines
dom. 10/1210:01 pmSEA - ILM
1 stop7h 10mAmerican Airlines
Deal found 9/15$384
This American Airlines deal was found by Cheapflights users on 9/14. 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.
vie. 9/262:41 pmILM - SEA
1 stop10h 23mAmerican Airlines
lun. 9/2911:05 pmSEA - ILM
1 stop8h 49mAmerican Airlines
Deal found 9/14$414
This United Airlines deal was found by Cheapflights users on 9/16. 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.
mar. 10/212:42 pmILM - SEA
1 stop10h 35mUnited Airlines
mar. 10/2811:59 pmSEA - ILM
2 stops12h 42mUnited Airlines
Deal found 9/16$416
This United Airlines deal was found by Cheapflights users on 9/16. 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.
sáb. 11/16:00 amILM - SEA
2 stops15h 00mUnited Airlines
sáb. 11/87:00 amSEA - ILM
2 stops13h 50mUnited Airlines
Deal found 9/16$417
This United Airlines deal was found by Cheapflights users on 9/16. 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.
sáb. 12/66:00 amILM - SEA
2 stops13h 07mUnited Airlines
mié. 12/107:00 amSEA - ILM
2 stops13h 54mUnited Airlines
Deal found 9/16$419

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 septiembre 16, 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

sáb. 12/6

2:17 pm-9:59 pm

1 stop10h 42m

Seattle/Tacoma Intl

mié. 12/10

11:34 am-10:39 pm

1 stop8h 05m

$309

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

mié. 10/15

2:02 pm-10:16 pm

1 stop11h 14m

Seattle/Tacoma Intl

mié. 10/22

12:03 pm-11:21 pm

1 stop8h 18m

$309

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

sáb. 11/8

7:07 am-12:53 pm

1 stop8h 46m

Seattle/Tacoma Intl

mié. 11/19

11:20 pm-10:40 am

1 stop8h 20m

$309

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

mié. 12/10

2:17 pm-9:59 pm

1 stop10h 42m

Seattle/Tacoma Intl

sáb. 12/13

10:07 pm-8:18 am

1 stop7h 11m

$309

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

mié. 1/14

5:24 pm-11:11 pm

1 stop8h 47m

Seattle/Tacoma Intl

mar. 1/20

8:00 am-8:19 pm

2 stops9h 19m

$314

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

sáb. 10/18

6:25 am-12:51 pm

1 stop9h 26m

Seattle/Tacoma Intl

dom. 10/19

12:34 am-11:24 am

1 stop7h 50m

$339

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

vie. 10/10

5:01 pm-10:59 pm

1 stop8h 58m

Seattle/Tacoma Intl

sáb. 11/1

5:22 am-5:44 pm

2 stops9h 22m

$344

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

lun. 10/6

1:00 pm-12:07 pm

2 stops26h 07m

$172

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

sáb. 10/18

11:54 am-8:46 pm

1 stop11h 52m

$273

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

sáb. 10/18

7:05 am-6:49 pm

2 stops14h 44m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 15 results
1
2

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, January is the cheapest month in which you can book a flight from Wilmington to Seattle (average of $238). Flying from Wilmington to Seattle in June is currently the most expensive (average of $387). 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 septiembre 16, 2025.
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
8.0
Very good
7,957 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 American Airlines fly from Wilmington to Seattle in about 10h 42m. 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 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 American Airlines. Delta is 44% 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, January is the cheapest month in which you can book a flight from Wilmington to Seattle (average of $238). Flying from Wilmington to Seattle in June is currently the most expensive (average of $387). 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
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Lacey
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

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 Wilmington to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Charlotte to Seattle flights
Raleigh to Seattle flights
Charlotte to Portland flights
Knoxville to Seattle flights
Raleigh to Portland flights
Norfolk to Seattle flights
Blountville to Seattle flights
Knoxville to Portland flights
Norfolk to Portland flights
Asheville to Seattle flights
Greensboro to Seattle flights
Asheville to Portland flights
Myrtle Beach to Seattle flights
Myrtle Beach to Portland flights
Greensboro to Spokane flights
Greensboro to Portland flights
Fayetteville to Seattle flights
Charlotte to Spokane flights
Raleigh to Spokane flights
Charlotte to Pasco flights
Knoxville to Spokane flights
Raleigh to Pasco flights
Asheville to Spokane flights
Wilmington to Portland flights
Norfolk to Spokane flights
Blountville to Portland flights
Fayetteville to Portland flights
Raleigh to Bellingham flights
Jacksonville to Seattle flights
New Bern to Seattle flights
Raleigh to Walla Walla flights
Greenville to Seattle flights
Jacksonville to Portland flights
Greensboro to Pasco flights
Charlotte to Yakima flights
Norfolk to Pasco flights
Knoxville to Pasco flights
Wilmington to Spokane flights
New Bern to Portland flights
Blountville to Spokane flights
Norfolk to Walla Walla flights
Raleigh to Pullman flights
Greensboro to Pullman flights
Charlotte to Walla Walla flights
Fayetteville to Pullman flights
Knoxville to Walla Walla flights
Charlotte to Pullman flights
Raleigh to Wenatchee flights

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 septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$818FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$308Average$557FlexibilityNo cancel feeOn-time71%

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.