$448+ Cheap flights from Wilmington to Seattle (ILM - SEA)
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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
ILM — SEA
Dec 9 — Dec 161
Round-trip
1 adult, Economy
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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.Cheap flight deals from Wilmington to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Wilmington to SeattleExplore 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 November 9, 2026.
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 November 9, 2026.
This Delta deal was found by Cheapflights users on 11/5. 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.
Sat 12/55:32 pm -
1 stop9h 23m
Sat 12/126:00 am -
1 stop7h 43m
Deal found 11/5![Delta logo]()
$505
This Delta deal was found by Cheapflights users on 11/5. 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.
Sat 12/512:44 pm -
1 stop11h 06m
Mon 12/142:05 pm -
1 stop20h 33m
Deal found 11/5![Delta logo]()
$525
This United Airlines deal was found by Cheapflights users on 11/8. 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.
Mon 12/146:05 am -
2 stops13h 13m
Mon 1/47:00 am -
2 stops13h 58m
Deal found 11/8![United Airlines logo]()
$528
This Delta deal was found by Cheapflights users on 11/5. 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 12/72:28 pm -
1 stop12h 27m
Sun 12/1310:40 pm -
1 stop11h 58m
Deal found 11/5![Delta logo]()
$545
This Delta deal was found by Cheapflights users on 11/5. 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 12/45:32 pm -
1 stop19h 46m
Sat 12/126:00 am -
1 stop7h 43m
Deal found 11/5![Delta logo]()
$555
This United Airlines deal was found by Cheapflights users on 11/5. 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.
Wed 12/96:05 am -
2 stops15h 41m
Sat 12/126:15 am -
2 stops14h 29m
Deal found 11/5![United Airlines logo]()
$569
This Delta deal was found by Cheapflights users on 11/5. 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.
Sat 12/512:44 pm -
1 stop11h 06m
Sun 12/1311:15 pm -
2 stops19h 33m
Deal found 11/5![Delta logo]()
$573
This Delta deal was found by Cheapflights users on 11/5. 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 12/42:28 pm -
1 stop22h 50m
Tue 12/1511:59 pm -
1 stop10h 39m
Deal found 11/5![Delta logo]()
$575
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Mon 12/214:45 pm -
1 stop10h 14m
Wed 12/305:09 am -
1 stop7h 56m
Deal found 11/5![American Airlines logo]()
$593
Best flights from Wilmington to SeattleDiscover carefully curated flight deals from Wilmington to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.
Discover carefully curated flight deals from Wilmington to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.
This United Airlines deal was found by Cheapflights users on 11/8. 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.
Mon 12/146:05 am -
2 stops13h 13m
Mon 1/47:00 am -
2 stops13h 58m
Deal found 11/8![United Airlines logo]()
$528
This Delta deal was found by Cheapflights users on 11/5. 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.
Sat 12/55:32 pm -
1 stop9h 23m
Tue 12/1512:25 pm -
2 stops18h 07m
Deal found 11/5![Delta logo]()
$561
This American Airlines deal was found by Cheapflights users on 11/6. 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 5/44:50 pm -
1 stop9h 38m
Tue 5/1811:58 pm -
2 stops9h 36m
Deal found 11/6![American Airlines logo]()
$584
This Alaska Airlines deal was found by Cheapflights users on 11/6. 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.
Sat 1/232:23 pm -
1 stop8h 41m
Wed 1/278:00 am -
1 stop7h 42m
Deal found 11/6![Alaska Airlines logo]()
$645
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Sat 1/236:00 am -
2 stops13h 38m
Wed 1/277:00 am -
2 stops13h 58m
Deal found 11/4![United Airlines logo]()
$569
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Sat 12/125:26 pm -
1 stop8h 22m
Sat 12/2611:17 pm -
1 stop8h 04m
Deal found 11/9![American Airlines logo]()
$609
This Delta deal was found by Cheapflights users on 11/8. 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 3/265:45 pm -
1 stop9h 04m
Sun 4/410:55 pm -
1 stop7h 42m
Deal found 11/8![Delta logo]()
$675
This Alaska Airlines deal was found by Cheapflights users on 11/7. 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.
Sat 12/1212:10 pm -
2 stops21h 10m
Sat 12/269:33 pm -
1 stop9h 48m
Deal found 11/7![Alaska Airlines logo]()
$701
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/46:05 am -
1 stop9h 56m
Thu 12/106:15 am -
2 stops14h 29m
Deal found 11/5![United Airlines logo]()
$654
Last-minute flights from Wilmington to SeattleDiscover last-minute flight deals from Wilmington to Seattle. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from Wilmington to Seattle. Data last updated November 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 11/5. 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 12/45:32 pm -
1 stop19h 46m
Sat 12/126:00 am -
1 stop7h 43m
Deal found 11/5![Delta logo]()
$555
This Delta deal was found by Cheapflights users on 11/5. 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 12/45:32 pm -
1 stop19h 46m
Sun 12/1310:40 pm -
1 stop11h 58m
Deal found 11/5![Delta logo]()
$575
This Delta deal was found by Cheapflights users on 11/5. 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.
Sat 12/55:32 pm -
1 stop9h 23m
Sat 12/126:00 am -
1 stop7h 43m
Deal found 11/5![Delta logo]()
$505
This Delta deal was found by Cheapflights users on 11/5. 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.
Sat 12/512:44 pm -
1 stop11h 06m
Mon 12/142:05 pm -
1 stop20h 33m
Deal found 11/5![Delta logo]()
$525
This Delta deal was found by Cheapflights users on 11/5. 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.
Sat 12/55:32 pm -
1 stop9h 23m
Wed 12/1612:25 pm -
2 stops18h 02m
Deal found 11/5![Delta logo]()
$561
This Delta deal was found by Cheapflights users on 11/5. 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.
Sat 12/512:44 pm -
1 stop11h 06m
Sun 12/1311:15 pm -
2 stops19h 33m
Deal found 11/5![Delta logo]()
$573
This Delta deal was found by Cheapflights users on 11/5. 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 12/72:28 pm -
1 stop12h 27m
Sun 12/1310:40 pm -
1 stop11h 58m
Deal found 11/5![Delta logo]()
$545
This United Airlines deal was found by Cheapflights users on 11/5. 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.
Wed 12/96:05 am -
2 stops15h 41m
Sat 12/126:15 am -
2 stops14h 29m
Deal found 11/5![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 11/8. 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.
Mon 12/146:05 am -
2 stops13h 13m
Mon 1/47:00 am -
2 stops13h 58m
Deal found 11/8![United Airlines logo]()
$528
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Mon 12/214:45 pm -
1 stop10h 14m
Wed 12/305:09 am -
1 stop7h 56m
Deal found 11/5![American Airlines logo]()
$593
One-way flights from Wilmington to SeattleSearch for one-way flight options from Wilmington to Seattle. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
Search for one-way flight options from Wilmington to Seattle. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Sun 12/66:05 am -
2 stops13h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![United Airlines logo]()
$448
Find 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 November 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $505 (Delta) |
One-way from | $489 (United Airlines) |
Popular in | September |
Cheapest in | February |
Average price | $459 |
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 7,457,451 searches. Data last updated November 9, 2026.
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
Cheapest round-trip
Quickest round-trip
WilmingtonSeattle
ILM Wilmington New Hanover County - SEA Seattle/Tacoma Intl
ILMSEA
Wilmington New Hanover County
Sun 12/6
6:05 am-4:18 pm
2 stops13h 13m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$448
WilmingtonSeattle
ILM Wilmington New Hanover County - SEA Seattle/Tacoma Intl
ILMSEA
Wilmington New Hanover County
Mon 12/14
6:05 am-4:18 pm
2 stops13h 13m
Seattle/Tacoma Intl
Mon 1/4
7:00 am-11:58 pm
2 stops13h 58m
$528
WilmingtonSeattle
ILM Wilmington New Hanover County - SEA Seattle/Tacoma Intl
ILMSEA
Wilmington New Hanover County
Sat 12/5
5:32 pm-11:55 pm
1 stop9h 23m
Seattle/Tacoma Intl
Tue 12/15
12:25 pm-9:32 am
2 stops18h 07m
$561
WilmingtonSeattle
ILM Wilmington New Hanover County - SEA Seattle/Tacoma Intl
ILMSEA
Wilmington New Hanover County
Sat 1/23
6:00 am-4:38 pm
2 stops13h 38m
Seattle/Tacoma Intl
Wed 1/27
7:00 am-11:58 pm
2 stops13h 58m
$569
WilmingtonSeattle
ILM Wilmington New Hanover County - SEA Seattle/Tacoma Intl
ILMSEA
Wilmington New Hanover County
Tue 5/4
4:50 pm-11:28 pm
1 stop9h 38m
Seattle/Tacoma Intl
Tue 5/18
11:58 pm-12:34 pm
2 stops9h 36m
$584
WilmingtonSeattle
ILM Wilmington New Hanover County - SEA Seattle/Tacoma Intl
ILMSEA
Wilmington New Hanover County
Sat 12/12
5:26 pm-10:48 pm
1 stop8h 22m
Seattle/Tacoma Intl
Sat 12/26
11:17 pm-10:21 am
1 stop8h 04m
$609
WilmingtonSeattle
ILM Wilmington New Hanover County - SEA Seattle/Tacoma Intl
ILMSEA
Wilmington New Hanover County
Sat 1/23
2:23 pm-8:04 pm
1 stop8h 41m
Seattle/Tacoma Intl
Wed 1/27
8:00 am-6:42 pm
1 stop7h 42m
$645
WilmingtonSeattle
ILM Wilmington New Hanover County - SEA Seattle/Tacoma Intl
ILMSEA
Wilmington New Hanover County
Fri 12/4
6:05 am-1:01 pm
1 stop9h 56m
Seattle/Tacoma Intl
Thu 12/10
6:15 am-11:44 pm
2 stops14h 29m
$654
WilmingtonSeattle
ILM Wilmington New Hanover County - SEA Seattle/Tacoma Intl
ILMSEA
Wilmington New Hanover County
Fri 3/26
5:45 pm-11:49 pm
1 stop9h 04m
Seattle/Tacoma Intl
Sun 4/4
10:55 pm-9:37 am
1 stop7h 42m
$675
WilmingtonSeattle
ILM Wilmington New Hanover County - SEA Seattle/Tacoma Intl
ILMSEA
Wilmington New Hanover County
Sat 12/12
12:10 pm-6:20 am
2 stops21h 10m
Seattle/Tacoma Intl
Sat 12/26
9:33 pm-10:21 am
1 stop9h 48m
$701
Sorted by cheapest first
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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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.
ILM-SEA
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
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 November 9, 2026.
Read through reviews of airlines operating flights from Wilmington to Seattle, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
6.8
Overall
7.0
Boarding
7.4
Comfort
7.2
Crew
7.9
Food
6.4
Reviews
1 / 20
2.0
MediocreSusie,Jan 2026
CLT - TPA
Entertainment
6.8
Overall
7.0
Boarding
7.4
Comfort
7.2
Crew
7.9
Food
6.4
Reviews
1 / 20
2.0
MediocreSusie,Jan 2026
CLT - TPA
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Lacey
Tacoma
Leavenworth
Tukwila
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ocean Shores
Ellensburg
Issaquah
Olympia
Lakewood
Poulsbo
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Shoreline
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Wilmington and Seattle flights
Browse other Wilmington and Seattle flight options. Last updated on November 9, 2026.
Other flights from Wilmington
Browse through other flights departing from Wilmington. Flights are based on user searches made on Cheapflights and were last updated on November 9, 2026.
Popular flight searches
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Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 9, 2026.
Top airline flying from Wilmington to Seattle
Discover the top airline 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 7,457,451 searches. Data last updated November 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$358 | Average$621 | FlexibilityNo cancel fee | On-time71% |