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Cheap flights from Wilmington to Seattle from $278

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Wilmington to Seattle departing on 6/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Wilmington to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:09 pm - 10:42 pm
ILM
-
SEA
9h 33m
1 stop
United Airlines Logo
6:51 pm - 12:05 pm
SEA
-
ILM
14h 14m
2 stops
$374United Airlines
Tue, Sep 1 - Tue, Sep 8
United Airlines Logo
7:30 am - 3:36 pm
ILM
-
SEA
11h 06m
2 stops
United Airlines Logo
6:51 pm - 12:05 pm
SEA
-
ILM
14h 14m
2 stops
$379United Airlines
Tue, Sep 1 - Tue, Sep 8
United Airlines Logo
4:09 pm - 10:42 pm
ILM
-
SEA
9h 33m
1 stop
United Airlines Logo
6:51 pm - 12:05 pm
SEA
-
ILM
14h 14m
2 stops
$384United Airlines
Tue, Sep 1 - Tue, Sep 8
United Airlines Logo
7:30 am - 3:36 pm
ILM
-
SEA
11h 06m
2 stops
United Airlines Logo
6:51 pm - 12:05 pm
SEA
-
ILM
14h 14m
2 stops
$389United Airlines
Tue, Sep 1 - Tue, Sep 8
American Airlines Logo
6:34 pm - 10:56 pm
ILM
-
SEA
7h 22m
1 stop
American Airlines Logo
9:20 am - 9:20 pm
SEA
-
ILM
9h 00m
1 stop
$445American Airlines
Wed, Sep 23 - Sat, Sep 26
Delta Logo
2:30 pm - 8:38 pm
ILM
-
SEA
9h 08m
1 stop
Delta Logo
10:35 pm - 11:07 am
SEA
-
ILM
9h 32m
1 stop
$472Delta
Tue, Sep 1 - Sat, Sep 5
American Airlines Logo
5:09 am - 12:10 pm
ILM
-
SEA
10h 01m
1 stop
American Airlines Logo
5:10 am - 3:55 pm
SEA
-
ILM
7h 45m
1 stop
$482American Airlines
Tue, Jun 2 - Tue, Jun 9
United Airlines Logo
7:30 am - 7:18 pm
ILM
-
SEA
14h 48m
2 stops
United Airlines Logo
11:00 pm - 12:19 pm
SEA
-
ILM
10h 19m
1 stop
$494United Airlines
Tue, Jun 2 - Tue, Jun 9
United Airlines Logo
7:30 am - 11:24 pm
ILM
-
SEA
18h 54m
3 stops
United Airlines Logo
6:51 pm - 12:05 pm
SEA
-
ILM
14h 14m
2 stops
$495United Airlines
Tue, Sep 1 - Tue, Sep 8
American Airlines Logo
5:09 am - 9:50 am
ILM
-
SEA
7h 41m
1 stop
American Airlines Logo
5:05 am - 3:54 pm
SEA
-
ILM
7h 49m
1 stop
$496American Airlines
Wed, Jun 24 - Fri, Jul 10

American Airlines flights from Wilmington to Seattle

Our best American Airlines deals on Wilmington to Seattle flight tickets
American Airlines
Sep 23
ILM6:34 pmWilmington New Hanover County
7h 22m
1 stop
SEA10:56 pmSeattle/Tacoma Intl
Sep 26
SEA9:20 amSeattle/Tacoma Intl
9h 00m
1 stop
ILM9:20 pmWilmington New Hanover County
$445
American Airlines
Jun 2
ILM5:09 amWilmington New Hanover County
10h 01m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
Jun 9
SEA5:10 amSeattle/Tacoma Intl
7h 45m
1 stop
ILM3:55 pmWilmington New Hanover County
$482
American Airlines
Jun 24
ILM5:09 amWilmington New Hanover County
7h 41m
1 stop
SEA9:50 amSeattle/Tacoma Intl
Jul 10
SEA5:05 amSeattle/Tacoma Intl
7h 49m
1 stop
ILM3:54 pmWilmington New Hanover County
$496

United Airlines flights from Wilmington to Seattle

Our best United Airlines deals on Wilmington to Seattle flight tickets
United Airlines
Sep 1
ILM4:09 pmWilmington New Hanover County
9h 33m
1 stop
SEA10:42 pmSeattle/Tacoma Intl
Sep 8
SEA6:51 pmSeattle/Tacoma Intl
14h 14m
2 stops
ILM12:05 pmWilmington New Hanover County
$374
United Airlines
Sep 1
ILM7:30 amWilmington New Hanover County
11h 06m
2 stops
SEA3:36 pmSeattle/Tacoma Intl
Sep 8
SEA6:51 pmSeattle/Tacoma Intl
14h 14m
2 stops
ILM12:05 pmWilmington New Hanover County
$379
United Airlines
Sep 1
ILM4:09 pmWilmington New Hanover County
9h 33m
1 stop
SEA10:42 pmSeattle/Tacoma Intl
Sep 8
SEA6:51 pmSeattle/Tacoma Intl
14h 14m
2 stops
ILM12:05 pmWilmington New Hanover County
$384

momondo 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, momondo users made 832,500 searches. Data last updated May 11, 2026.
Use the filters below to find and compare flights from Wilmington to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 9/1

4:09 pm-10:42 pm

1 stop9h 33m

Seattle/Tacoma Intl

Tue 9/8

6:51 pm-12:05 pm

2 stops14h 14m

$374

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 9/1

7:30 am-3:36 pm

2 stops11h 06m

Seattle/Tacoma Intl

Tue 9/8

6:51 pm-12:05 pm

2 stops14h 14m

$379

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 9/1

4:09 pm-10:42 pm

1 stop9h 33m

Seattle/Tacoma Intl

Tue 9/8

6:51 pm-12:05 pm

2 stops14h 14m

$384

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 9/1

7:30 am-3:36 pm

2 stops11h 06m

Seattle/Tacoma Intl

Tue 9/8

6:51 pm-12:05 pm

2 stops14h 14m

$389

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 9/23

6:34 pm-10:56 pm

1 stop7h 22m

Seattle/Tacoma Intl

Sat 9/26

9:20 am-9:20 pm

1 stop9h 00m

$445

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 9/1

2:30 pm-8:38 pm

1 stop9h 08m

Seattle/Tacoma Intl

Sat 9/5

10:35 pm-11:07 am

1 stop9h 32m

$472

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 6/2

5:09 am-12:10 pm

1 stop10h 01m

Seattle/Tacoma Intl

Tue 6/9

5:10 am-3:55 pm

1 stop7h 45m

$482

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 6/2

7:30 am-7:18 pm

2 stops14h 48m

Seattle/Tacoma Intl

Tue 6/9

11:00 pm-12:19 pm

1 stop10h 19m

$494

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 9/1

7:30 am-11:24 pm

3 stops18h 54m

Seattle/Tacoma Intl

Tue 9/8

6:51 pm-12:05 pm

2 stops14h 14m

$495
Quickest round-trip

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 6/24

5:09 am-9:50 am

1 stop7h 41m

Seattle/Tacoma Intl

Fri 7/10

5:05 am-3:54 pm

1 stop7h 49m

$496

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Wilmington to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Wilmington and Seattle?

What is the cheapest month to fly to Seattle?

In general, September is the cheapest month to fly from Wilmington to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $338. If you don’t want to visit Seattle in September, then you should wait until October to fly from Wilmington, when ticket prices are also cheap, with an average price of $353.

How have Wilmington to Seattle flight prices changed over time?

When to book flights from Wilmington to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Wilmington to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Wilmington to Seattle (ILM to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Wilmington to Seattle

Fastest flight time

8h 11m

Direct flights

None
The fastest flight from Wilmington to Seattle takes 8h 11m
There are no direct flights from Wilmington to Seattle. There are no popular flight routes from Wilmington to Seattle.
Search flight deals

Frequently asked questions about flying from Wilmington to Seattle

  • How far is Wilmington New Hanover County to Seattle/Tacoma Intl by plane?

    There are 2457.2 mi between Wilmington New Hanover County and Seattle/Tacoma Intl. Typically, this will take 8h 11m by plane in normal conditions.

  • When did momondo last update prices for flights from Wilmington New Hanover County Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Wilmington New Hanover County Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Wilmington New Hanover County Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Wilmington New Hanover County Airport to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Wilmington New Hanover County Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Wilmington to Seattle?

Best airlines flying from Wilmington to Seattle

Compare and see reviews for airlines that fly from Wilmington to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $308Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Redmond
Kent
Tukwila
Puyallup
Marysville
Lakewood
Cle Elum
Federal Way
Centralia
Fife
Westport
Shoreline
Tumwater

Why use momondo?

Why should I use momondo to find a flight deal from Wilmington to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Wilmington to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Wilmington to Seattle with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Wilmington to Seattle flights to just show those with flexible booking policies.

How can momondo help me find flights from Wilmington to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Wilmington to Seattle.

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Yes. momondo can track prices for Wilmington to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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