HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$228+ 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 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
ILM — SEA
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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.

The best prices from Wilmington New Hanover County to Seattle/Tacoma Intl are usually found in January or March, booked 44 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(American Airlines)

Popular in

April

Cheapest in

January

Average price

$635
Provider with most accurate pricing for Wilmington New Hanover County-Seattle/Tacoma Intl flight deals.
Search Deals
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
Highest demand for flights based on searches. 4% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/19. 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.
Tue 4/294:55 pmILM - SEA
1 stop9h 09mAmerican Airlines
Tue 5/65:35 amSEA - ILM
1 stop9h 07mAmerican Airlines
Deal found 2/19$249
This Delta deal was found by Cheapflights users on 2/19. 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.
Fri 3/213:56 pmILM - SEA
1 stop11h 00mDelta
Fri 3/2810:30 pmSEA - ILM
1 stop9h 08mDelta
Deal found 2/19$374
This United Airlines deal was found by Cheapflights users on 2/18. 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.
Fri 3/74:14 pmILM - SEA
1 stop9h 06mUnited Airlines
Tue 3/118:50 amSEA - ILM
2 stops12h 01mUnited Airlines
Deal found 2/18$414

Find flights from Wilmington to Seattle within your budget

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 February 20, 2025.

Fly from

Wilmington

Fly to

Seattle

Route

Depart

Return

Price

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 4/29

5:00 am-12:33 pm

1 stop10h 33m

Seattle/Tacoma Intl

Tue 5/6

5:35 am-5:42 pm

1 stop9h 07m

$249

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Fri 3/7

4:00 pm-10:16 pm

1 stop9h 16m

Seattle/Tacoma Intl

Tue 3/11

6:00 am-4:30 pm

1 stop7h 30m

$369

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Thu 5/8

12:01 pm-5:27 pm

2 stops32h 26m

Seattle/Tacoma Intl

Thu 5/15

6:33 pm-9:31 pm

2 stops23h 58m

$446

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 4/29

4:35 pm-9:47 am

2 stops20h 12m

Seattle/Tacoma Intl

Tue 5/6

8:10 am-11:56 pm

2 stops12h 46m

$474

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Sun 6/29

12:20 pm-10:50 pm

1 stop13h 30m

$228

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 7/1

6:25 pm-12:05 am

1 stop8h 40m

$270

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Fri 2/28

4:05 pm-12:25 am

2 stops35h 20m

$317

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Fri 7/4

5:00 pm-10:29 pm

1 stop8h 29m

$320

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Sat 6/28

5:50 pm-10:59 pm

1 stop8h 09m

$439

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Wilmington-Seattle flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Travel insights for flights from Wilmington to Seattle

Get recent, data-driven insights about flights from Wilmington to Seattle including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Wilmington to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Wilmington to Seattle. Price data was last updated on February 14, 2025.

The price you pay for your flight from Wilmington to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 44 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 July is currently the most expensive (average of $411). 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.

What is the cheapest time of day to fly from ILM to SEA?

Find hourly flight availability from Wilmington to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

One of the essential ways to save on airfare from Wilmington to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 12% on airfare.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 February 20, 2025.
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • What are the cheapest airlines flying from Wilmington to Seattle round-trip?

    Cheapflights users have booked flights from Wilmington to Seattle round-trip from $249. Other airlines that can offer you cheap pricing are Delta, from $369, and United Airlines, from $474. American Airlines is 60% 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 July is currently the most expensive (average of $411). 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 Wilmington?

Book flights to Wilmington if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Federal Way
Centralia
Marysville
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

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.
Raleigh to Seattle flights
Charlotte to Seattle flights
Charlotte to Portland flights
Norfolk to Seattle flights
Asheville to Seattle flights
Raleigh to Portland flights
Greensboro to Seattle flights
Knoxville to Seattle flights
Myrtle Beach to Seattle flights
Asheville to Portland flights
Greensboro to Portland flights
Knoxville to Portland flights
Blountville to Seattle flights
Charlotte to Spokane flights
Raleigh to Spokane flights
Norfolk to Portland flights
Wilmington to Portland flights
Knoxville to Spokane flights
Norfolk to Spokane flights
Blountville to Portland flights
Fayetteville to Seattle flights
Charlotte to Pasco flights
Myrtle Beach to Portland flights
Fayetteville to Portland flights
Jacksonville to Seattle flights
Raleigh to Bellingham flights
Greensboro to Spokane flights
Raleigh to Wenatchee flights
Asheville to Spokane flights
Knoxville to Pasco flights
Jacksonville to Portland flights
Raleigh to Pasco flights
Knoxville to Walla Walla flights
Raleigh to Pullman flights
Asheville to Bellingham flights
Greenville to Seattle flights
Greensboro to Pasco flights
New Bern to Seattle flights
Charlotte to Yakima flights
Wilmington to Spokane flights
Greensboro to Pullman flights
Charlotte to Pullman flights
Blountville to Spokane flights
New Bern to Portland flights
Raleigh to Walla Walla flights
New Bern to Spokane flights
Fayetteville to Pullman flights
Charlotte to Walla Walla 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$618FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$428Average$650FlexibilityNo 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.