Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Wilmington to Seattle from $137

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 1/4. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Wilmington to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:15 pm - 11:59 pmILM-SEA
10h 44m1 stop
Delta Logo
7:25 am - 5:16 pmSEA-ILM
6h 51m1 stop
$309Delta
Find Deal
Sat, Dec 6 - Wed, Dec 10
American Airlines Logo
5:05 am - 1:55 pmILM-SEA
11h 50m2 stops
American Airlines Logo
11:34 am - 10:39 pmSEA-ILM
8h 05m1 stop
$314American Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
American Airlines Logo
2:00 pm - 9:47 pmILM-SEA
10h 47m2 stops
American Airlines Logo
8:35 am - 8:49 pmSEA-ILM
9h 14m2 stops
$319American Airlines
Find Deal
Wed, Jan 14 - Tue, Jan 20
American Airlines Logo
2:07 pm - 7:09 pmILM-SEA
8h 02m1 stop
American Airlines Logo
12:14 am - 12:31 pmSEA-ILM
9h 17m2 stops
$354American Airlines
Find Deal
Fri, Dec 12 - Fri, Jan 2
American Airlines Logo
6:05 am - 11:31 amILM-SEA
8h 26m1 stop
American Airlines Logo
10:30 am - 10:39 pmSEA-ILM
9h 09m1 stop
$359American Airlines
Find Deal
Wed, Feb 18 - Sun, Feb 22
American Airlines Logo
2:05 pm - 10:17 pmILM-SEA
11h 12m2 stops
American Airlines Logo
10:30 am - 10:39 pmSEA-ILM
9h 09m1 stop
$364American Airlines
Find Deal
Wed, Feb 18 - Sun, Feb 22
American Airlines Logo
2:05 pm - 10:17 pmILM-SEA
11h 12m2 stops
American Airlines Logo
11:59 pm - 12:28 pmSEA-ILM
9h 29m2 stops
$369American Airlines
Find Deal
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
3:42 pm - 10:38 pmILM-SEA
9h 56m1 stop
United Airlines Logo
7:00 am - 11:54 pmSEA-ILM
13h 54m2 stops
$386United Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
United Airlines Logo
6:00 am - 6:52 pmILM-SEA
15h 52m2 stops
United Airlines Logo
11:59 pm - 3:54 pmSEA-ILM
12h 55m2 stops
$399United Airlines
Find Deal
Wed, Nov 12 - Sun, Nov 16
United Airlines Logo
6:00 am - 4:07 pmILM-SEA
13h 07m2 stops
United Airlines Logo
10:40 am - 11:54 pmSEA-ILM
10h 14m2 stops
$407United Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8

American Airlines flights from Wilmington to Seattle

Our best American Airlines deals on Wilmington to Seattle flight tickets
American Airlines
Dec 6
ILM5:05 amWilmington New Hanover County
11h 50m
2 stops
SEA1:55 pmSeattle/Tacoma Intl
Dec 10
SEA11:34 amSeattle/Tacoma Intl
8h 05m
1 stop
ILM10:39 pmWilmington New Hanover County
$314
Find similar
American Airlines
Jan 14
ILM2:00 pmWilmington New Hanover County
10h 47m
2 stops
SEA9:47 pmSeattle/Tacoma Intl
Jan 20
SEA8:35 amSeattle/Tacoma Intl
9h 14m
2 stops
ILM8:49 pmWilmington New Hanover County
$319
Find similar
American Airlines
Dec 12
ILM2:07 pmWilmington New Hanover County
8h 02m
1 stop
SEA7:09 pmSeattle/Tacoma Intl
Jan 2
SEA12:14 amSeattle/Tacoma Intl
9h 17m
2 stops
ILM12:31 pmWilmington New Hanover County
$354
Find similar

Delta flights from Wilmington to Seattle

Our best Delta deals on Wilmington to Seattle flight tickets
Delta
Dec 6
ILM4:15 pmWilmington New Hanover County
10h 44m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
Dec 10
SEA7:25 amSeattle/Tacoma Intl
6h 51m
1 stop
ILM5:16 pmWilmington New Hanover County
$309
Find similar
Delta
Nov 1
ILM6:00 amWilmington New Hanover County
9h 27m
1 stop
SEA12:27 pmSeattle/Tacoma Intl
Nov 4
SEA11:40 amSeattle/Tacoma Intl
7h 59m
1 stop
ILM10:39 pmWilmington New Hanover County
$510
Find similar
Delta
Nov 1
ILM4:30 pmWilmington New Hanover County
10h 24m
1 stop
SEA11:54 pmSeattle/Tacoma Intl
Nov 4
SEA11:40 amSeattle/Tacoma Intl
7h 59m
1 stop
ILM10:39 pmWilmington New Hanover County
$531
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 October 30, 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 12/6

4:15 pm-11:59 pm

1 stop10h 44m

Seattle/Tacoma Intl

Wed 12/10

7:25 am-5:16 pm

1 stop6h 51m

$309

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Sat 12/6

5:05 am-1:55 pm

2 stops11h 50m

Seattle/Tacoma Intl

Wed 12/10

11:34 am-10:39 pm

1 stop8h 05m

$314

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 1/14

2:00 pm-9:47 pm

2 stops10h 47m

Seattle/Tacoma Intl

Tue 1/20

8:35 am-8:49 pm

2 stops9h 14m

$319

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Fri 12/12

2:07 pm-7:09 pm

1 stop8h 02m

Seattle/Tacoma Intl

Fri 1/2

12:14 am-12:31 pm

2 stops9h 17m

$354

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 2/18

6:05 am-11:31 am

1 stop8h 26m

Seattle/Tacoma Intl

Sun 2/22

10:30 am-10:39 pm

1 stop9h 09m

$359

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 2/18

2:05 pm-10:17 pm

2 stops11h 12m

Seattle/Tacoma Intl

Sun 2/22

10:30 am-10:39 pm

1 stop9h 09m

$364

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 2/18

2:05 pm-10:17 pm

2 stops11h 12m

Seattle/Tacoma Intl

Sun 2/22

11:59 pm-12:28 pm

2 stops9h 29m

$369

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Fri 12/5

3:42 pm-10:38 pm

1 stop9h 56m

Seattle/Tacoma Intl

Mon 12/8

7:00 am-11:54 pm

2 stops13h 54m

$386

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 11/12

6:00 am-6:52 pm

2 stops15h 52m

Seattle/Tacoma Intl

Sun 11/16

11:59 pm-3:54 pm

2 stops12h 55m

$399

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Fri 12/5

6:00 am-4:07 pm

2 stops13h 07m

Seattle/Tacoma Intl

Mon 12/8

10:40 am-11:54 pm

2 stops10h 14m

$407

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 October to fly from Wilmington, when ticket prices are also cheap, with an average price of $413.

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 October 2025, prices for Wilmington to Seattle flights are approximately 17% cheaper 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 02m 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
7,998 reviews
Search Delta flights
American AirlinesPriceFrom $308Free CancellationRating
7.2
11,035 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
Kent
Puyallup
Marysville
Redmond
Tukwila
Federal Way
Lakewood
Cle Elum
Fife
Centralia
Kirkland
Shoreline
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.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/29
Sat 12/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States