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$180+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
ILM — SEA
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$334
(Mytrip)

One-way from

$309
(Delta)

Popular in

June

Cheapest in

March

Average price

$444
Provider with most accurate pricing for Wilmington New Hanover County-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Wilmington New Hanover County-Seattle/Tacoma Intl flights.
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From Wilmington New Hanover County to Seattle/Tacoma Intl
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One-way flight from Wilmington New Hanover County to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 11% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 26, 2025.

This Mytrip deal was found by Cheapflights users on 3/25. 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 4/246:50 amILM - SEA
2 stops31h 45mMultiple Airlines
Wed 4/3012:30 pmSEA - ILM
2 stops24h 07mMultiple Airlines
Deal found 3/25$334
This American Airlines deal was found by Cheapflights users on 3/25. 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 6/35:05 amILM - SEA
1 stop10h 23mAmerican Airlines
Mon 6/912:05 amSEA - ILM
1 stop9h 19mAmerican Airlines
Deal found 3/25$427
This United deal was found by Cheapflights users on 3/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/285:10 pmILM - SEA
1 stop19h 40mUnited Airlines
Tue 6/1011:50 pmSEA - ILM
1 stop11h 40mUnited Airlines
Deal found 3/25$512
This Delta deal was found by Cheapflights users on 3/25. 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.
Tue 4/224:00 pmILM - SEA
1 stop9h 22mDelta
Mon 4/2812:45 amSEA - ILM
2 stops12h 31mDelta
Deal found 3/25$675

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2025.
Use the filters below to find and compare flights from Wilmington to Seattle that are best for you.

Fly from

Wilmington

Fly to

Seattle

Route

Depart

Return

Price

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Thu 4/24

6:50 am-11:35 am

2 stops31h 45m

Seattle/Tacoma Intl

Wed 4/30

12:30 pm-3:37 pm

2 stops24h 07m

$334

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 6/3

5:05 am-12:28 pm

1 stop10h 23m

Seattle/Tacoma Intl

Tue 6/10

11:55 pm-10:37 am

1 stop7h 42m

$427

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Wed 5/28

5:10 pm-9:50 am

1 stop19h 40m

Seattle/Tacoma Intl

Tue 6/10

11:50 pm-2:30 pm

1 stop11h 40m

$512

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Tue 4/22

4:00 pm-10:22 pm

1 stop9h 22m

Seattle/Tacoma Intl

Mon 4/28

12:45 am-4:16 pm

2 stops12h 31m

$675

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Sun 5/11

12:15 pm-12:10 am

2 stops38h 55m

$180

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Sat 5/10

4:40 pm-10:57 pm

1 stop9h 17m

$214

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Sat 4/26

4:00 pm-11:59 pm

1 stop10h 59m

$309

WilmingtonSeattle

ILM - SEA

ILMSEA

Wilmington New Hanover County

Sat 4/26

4:25 pm-11:49 am

3 stops22h 24m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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.

Cheapflights Insights

Everything you need to know about your flight from Wilmington to Seattle

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 March 26, 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 March 26, 2025.
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

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
7,891 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

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
8,608 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

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
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

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 $427. Other airlines that can offer you cheap pricing are United Airlines, from $512, and Delta, from $557. American Airlines is 28% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Wilmington to Seattle one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $309. Users have also found prices from $341 and $458 on American Airlines and United Airlines, respectively.

  • 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
Tacoma
Lakewood
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

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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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$617FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$378Average$646FlexibilityNo cancel feeOn-time71%
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