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Wilmington

$309+ Cheap flights from Seattle to Wilmington (SEA - ILM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ILM
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Wilmington New Hanover County are usually found in January or September, booked 63 days in advance, depart on a Wednesday or Saturday and return on a Saturday

Cheap flight deals from Seattle to Wilmington

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Wilmington (ILM). 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 June 12, 2025.

Round-trip from

$309
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$617
From Seattle/Tacoma Intl to Wilmington New Hanover County
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Seattle to Wilmington

Cheapest flights from Seattle to Wilmington
Explore the most affordable flight options available from Seattle to Wilmington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 9/128:35 amSEA - ILM
1 stop9h 14mAmerican Airlines
Wed 9/176:44 amILM - SEA
1 stop11h 04mAmerican Airlines
Deal found 6/11$309
This Delta deal was found by Cheapflights users on 6/10. 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.
Mon 10/69:20 pmSEA - ILM
1 stop9h 16mDelta
Sat 10/114:30 pmILM - SEA
1 stop8h 55mDelta
Deal found 6/10$339
This Sun Country Air deal was found by Cheapflights users on 6/10. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2511:59 pmSEA - ILM
1 stop8h 31mSun Country Air
Sun 6/291:18 pmILM - SEA
1 stop21h 44mSun Country Air
Deal found 6/10$425
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 6/266:45 amSEA - ILM
2 stops13h 15mUnited Airlines
Mon 6/304:59 pmILM - SEA
1 stop19h 51mUnited Airlines
Deal found 6/11$583
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/309:30 pmSEA - ILM
1 stop9h 27mAlaska Airlines
Mon 11/31:27 pmILM - SEA
1 stop11h 33mAlaska Airlines
Deal found 6/10$670
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1911:59 pmSEA - ILM
2 stops11h 16mMultiple Airlines
Sun 7/2712:30 pmILM - SEA
2 stops30h 55mMultiple Airlines
Deal found 6/10$774

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Wilmington 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 June 12, 2025.
Use the filters below to find and compare flights from Seattle to Wilmington that are best for you.

Fly from

Seattle

Fly to

Wilmington

Route

Depart

Return

Price

SeattleWilmington

SEA - ILM

SEAILM

Seattle/Tacoma Intl

Tue 9/9

11:38 pm-9:33 am

1 stop6h 55m

Wilmington New Hanover County

Sun 9/14

1:29 pm-7:54 pm

1 stop9h 25m

$309

SeattleWilmington

SEA - ILM

SEAILM

Seattle/Tacoma Intl

Thu 6/19

11:40 pm-9:39 am

1 stop6h 59m

Wilmington New Hanover County

Sun 7/27

5:51 pm-11:55 pm

1 stop9h 04m

$414

SeattleWilmington

SEA - ILM

SEAILM

Seattle/Tacoma Intl

Wed 6/25

11:59 pm-11:30 am

1 stop8h 31m

Wilmington New Hanover County

Sun 6/29

1:18 pm-8:02 am

1 stop21h 44m

$425

SeattleWilmington

SEA - ILM

SEAILM

Seattle/Tacoma Intl

Thu 6/26

6:45 am-11:00 pm

2 stops13h 15m

Wilmington New Hanover County

Mon 6/30

4:59 pm-9:50 am

1 stop19h 51m

$583

SeattleWilmington

SEA - ILM

SEAILM

Seattle/Tacoma Intl

Tue 9/9

9:45 pm-10:54 am

1 stop10h 09m

Wilmington New Hanover County

Sun 9/14

1:25 pm-10:29 pm

2 stops12h 04m

$695

SeattleWilmington

SEA - ILM

SEAILM

Seattle/Tacoma Intl

Thu 6/19

11:59 pm-2:15 pm

2 stops11h 16m

Wilmington New Hanover County

Sun 7/27

12:30 pm-4:25 pm

2 stops30h 55m

$774

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Seattle to Wilmington

Have a flexible travel schedule? Discover the best time to fly to Wilmington from Seattle 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 Seattle to Wilmington

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Wilmington. Price data was last updated on June 9, 2025.

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Wilmington. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Wilmington?

Currently, January is the cheapest month in which you can book a flight from Seattle to Wilmington (average of $296). Flying from Seattle to Wilmington in December is currently the most expensive (average of $385). 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 SEA to ILM?

Find hourly flight availability from Seattle to Wilmington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Wilmington in the afternoon. If you’re flexible enough to do this you can expect to save up to 53% on your trip compared to booking a flight at noon.

Rainfall in Wilmington by month

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

In terms of precipitation, rainfall in Wilmington ranges from 2.8 - 7.8 inches per month. September is typically the wettest month, when rainfall can reach 7.8 in. April is typically the driest time to visit Wilmington when rainfall is around 2.8 in.

Temperature in Wilmington by month

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

If weather is an important factor for your trip to Wilmington, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

Reviews of airlines servicing Wilmington

Get insights into the airlines that provide service to Wilmington. 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 Wilmington. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Seattle to Wilmington to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Sun Country Air
6.9
Okay
345 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle to Wilmington. 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 Seattle to Wilmington round-trip?

    American Airlines, at $309, was found to be the cheapest airline from Seattle to Wilmington.Alternate airlines to your destination round-trip include Delta and Sun Country Air. American Airlines is priced at 47% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Seattle to Wilmington that include hotel bookings?

    Yes. In addition to deals on Seattle to Wilmington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Wilmington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Wilmington.

  • Can I find deals for business class flights from Seattle to Wilmington?

    Yes. Cheapflights offers flight deals from Seattle to Wilmington 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 Seattle to Wilmington?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Wilmington (average of $296). Flying from Seattle to Wilmington in December is currently the most expensive (average of $385). 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
Carolina Beach
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Southport
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Top 2 airlines flying from Seattle to Wilmington

Discover the top 2 airlines that operate flights from Seattle to Wilmington. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$338Average$548FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$349Average$622FlexibilityNo cancel feeOn-time71%

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