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Cheap flights from Wilmington to Seattle from $273

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 10/18. 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

American Airlines Logo
7:07 am - 12:53 pmILM-SEA
8h 46m1 stop
American Airlines Logo
11:20 pm - 10:40 amSEA-ILM
8h 20m1 stop
$309American Airlines
Find Deal
Sat, Nov 8 - Wed, Nov 19
American Airlines Logo
2:37 pm - 10:18 pmILM-SEA
10h 41m1 stop
American Airlines Logo
7:10 am - 6:30 pmSEA-ILM
8h 20m1 stop
$310American Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
American Airlines Logo
2:37 pm - 10:18 pmILM-SEA
10h 41m1 stop
American Airlines Logo
7:10 am - 6:30 pmSEA-ILM
8h 20m1 stop
$311American Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
American Airlines Logo
2:39 pm - 11:18 pmILM-SEA
11h 39m2 stops
American Airlines Logo
6:19 am - 6:51 pmSEA-ILM
9h 32m1 stop
$314American Airlines
Find Deal
Sat, Nov 8 - Wed, Nov 19
American Airlines Logo
2:39 pm - 11:18 pmILM-SEA
11h 39m2 stops
American Airlines Logo
9:00 am - 8:52 pmSEA-ILM
8h 52m2 stops
$319American Airlines
Find Deal
Sat, Nov 8 - Wed, Nov 19
United Airlines Logo
2:42 pm - 10:17 pmILM-SEA
10h 35m1 stop
United Airlines Logo
11:59 pm - 3:41 pmSEA-ILM
12h 42m2 stops
$416United Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
United Airlines Logo
2:42 pm - 10:17 pmILM-SEA
10h 35m1 stop
United Airlines Logo
11:59 pm - 3:41 pmSEA-ILM
12h 42m2 stops
$417United Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
Multiple Airlines Logo
7:30 am - 10:46 pmILM-SEA
18h 16m2 stops
Multiple Airlines Logo
11:59 pm - 11:12 pmSEA-ILM
20h 13m2 stops
$524Multiple Airlines
Find Deal
Wed, Nov 26 - Sun, Nov 30
Multiple Airlines Logo
8:30 am - 8:39 amILM-SEA
27h 09m3 stops
Multiple Airlines Logo
11:59 pm - 11:12 pmSEA-ILM
20h 13m2 stops
$641Multiple Airlines
Find Deal
Wed, Nov 26 - Sun, Nov 30
Delta Logo
2:21 pm - 9:08 pmILM-SEA
9h 47m2 stops
Delta Logo
11:10 pm - 9:31 amSEA-ILM
7h 21m1 stop
$677Delta
Find Deal
Tue, Oct 7 - Sun, Oct 12

American Airlines flights from Wilmington to Seattle

Our best American Airlines deals on Wilmington to Seattle flight tickets
American Airlines
Nov 8
ILM7:07 amWilmington New Hanover County
8h 46m
1 stop
SEA12:53 pmSeattle/Tacoma Intl
Nov 19
SEA11:20 pmSeattle/Tacoma Intl
8h 20m
1 stop
ILM10:40 amWilmington New Hanover County
$309
Find similar
American Airlines
Oct 21
ILM2:37 pmWilmington New Hanover County
10h 41m
1 stop
SEA10:18 pmSeattle/Tacoma Intl
Oct 28
SEA7:10 amSeattle/Tacoma Intl
8h 20m
1 stop
ILM6:30 pmWilmington New Hanover County
$310
Find similar
American Airlines
Oct 21
ILM2:37 pmWilmington New Hanover County
10h 41m
1 stop
SEA10:18 pmSeattle/Tacoma Intl
Oct 28
SEA7:10 amSeattle/Tacoma Intl
8h 20m
1 stop
ILM6:30 pmWilmington New Hanover County
$311
Find similar

United Airlines flights from Wilmington to Seattle

Our best United Airlines deals on Wilmington to Seattle flight tickets
United Airlines
Oct 21
ILM2:42 pmWilmington New Hanover County
10h 35m
1 stop
SEA10:17 pmSeattle/Tacoma Intl
Oct 28
SEA11:59 pmSeattle/Tacoma Intl
12h 42m
2 stops
ILM3:41 pmWilmington New Hanover County
$416
Find similar
United Airlines
Oct 21
ILM2:42 pmWilmington New Hanover County
10h 35m
1 stop
SEA10:17 pmSeattle/Tacoma Intl
Oct 28
SEA11:59 pmSeattle/Tacoma Intl
12h 42m
2 stops
ILM3:41 pmWilmington New Hanover County
$417
Find similar
United Airlines
Dec 6
ILM6:00 amWilmington New Hanover County
13h 07m
2 stops
SEA4:07 pmSeattle/Tacoma Intl
Dec 10
SEA7:00 amSeattle/Tacoma Intl
13h 54m
2 stops
ILM11:54 pmWilmington New Hanover County
$419
Find similar

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 September 17, 2025.
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

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Sat 11/8

7:07 am-12:53 pm

1 stop8h 46m

Seattle/Tacoma Intl

Wed 11/19

11:20 pm-10:40 am

1 stop8h 20m

$309

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 10/21

2:37 pm-10:18 pm

1 stop10h 41m

Seattle/Tacoma Intl

Tue 10/28

7:10 am-6:30 pm

1 stop8h 20m

$310

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 10/21

2:37 pm-10:18 pm

1 stop10h 41m

Seattle/Tacoma Intl

Tue 10/28

7:10 am-6:30 pm

1 stop8h 20m

$311

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Sat 11/8

2:39 pm-11:18 pm

2 stops11h 39m

Seattle/Tacoma Intl

Wed 11/19

6:19 am-6:51 pm

1 stop9h 32m

$314

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Sat 11/8

2:39 pm-11:18 pm

2 stops11h 39m

Seattle/Tacoma Intl

Wed 11/19

9:00 am-8:52 pm

2 stops8h 52m

$319

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 10/21

2:42 pm-10:17 pm

1 stop10h 35m

Seattle/Tacoma Intl

Tue 10/28

11:59 pm-3:41 pm

2 stops12h 42m

$416

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 10/21

2:42 pm-10:17 pm

1 stop10h 35m

Seattle/Tacoma Intl

Tue 10/28

11:59 pm-3:41 pm

2 stops12h 42m

$417

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 11/26

7:30 am-10:46 pm

2 stops18h 16m

Seattle/Tacoma Intl

Sun 11/30

11:59 pm-11:12 pm

2 stops20h 13m

$524

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 11/26

8:30 am-8:39 am

3 stops27h 09m

Seattle/Tacoma Intl

Sun 11/30

11:59 pm-11:12 pm

2 stops20h 13m

$641

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 10/7

2:21 pm-9:08 pm

2 stops9h 47m

Seattle/Tacoma Intl

Sun 10/12

11:10 pm-9:31 am

1 stop7h 21m

$677

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 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 March to fly from Wilmington, when ticket prices are also cheap, with an average price of $444.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Wilmington is on a Saturday. momondo users have found tickets for Saturday departures for as low as $608. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Wilmington because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $816.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Wilmington at noon is the least expensive time of day to depart. momondo users have found prices as low as $638 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $725. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How have Wilmington to Seattle flight prices changed over time?

As of September 2025, prices for Wilmington to Seattle flights are approximately 36% more expensive when compared to flights at the same time last year.

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

Direct flights

None
There are no direct flights from Wilmington to Seattle. There are no popular flight routes from Wilmington to Seattle.
Search flight deals

  • 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 30m 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
DeltaPriceFrom $308Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $308Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Seattle?

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

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.

I’m not ready to book a flight from Wilmington to Seattle right now. Can momondo alert me if prices change?

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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