$249+ 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
ILM — SEA
Jun 13 — Jun 201
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
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Best
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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 May 14, 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 May 14, 2026.
This American Airlines deal was found by Cheapflights users on 5/13. 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.
Wed 9/235:14 am
ILM
- SEA
1 stop9h 32m
American Airlines
Sat 9/265:05 am
SEA
- ILM
1 stop7h 44m
American Airlines
Deal found 5/13![American Airlines logo]()
$445
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:30 pm
ILM
- SEA
1 stop9h 08m
Delta
Sat 9/510:35 pm
SEA
- ILM
1 stop9h 32m
Delta
Deal found 5/9![Delta logo]()
$472
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:09 am
ILM
- SEA
1 stop10h 01m
American Airlines
Tue 6/95:10 am
SEA
- ILM
1 stop7h 45m
American Airlines
Deal found 5/10![American Airlines logo]()
$482
This United Airlines deal was found by Cheapflights users on 5/12. 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 10/286:00 am
ILM
- SEA
2 stops12h 49m
United Airlines
Sat 10/3112:20 pm
SEA
- ILM
1 stop8h 33m
United Airlines
Deal found 5/12![United Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 5/9. 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.
Tue 6/27:30 am
ILM
- SEA
2 stops14h 48m
United Airlines
Tue 6/911:00 pm
SEA
- ILM
1 stop10h 19m
United Airlines
Deal found 5/9![United Airlines logo]()
$494
This American Airlines deal was found by Cheapflights users on 5/13. 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.
Wed 6/245:09 am
ILM
- SEA
1 stop7h 41m
American Airlines
Fri 7/1011:40 am
SEA
- ILM
1 stop9h 17m
American Airlines
Deal found 5/13![American Airlines logo]()
$496
This United Airlines deal was found by Cheapflights users on 5/12. 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 9/97:30 am
ILM
- SEA
1 stop9h 57m
United Airlines
Sat 9/127:00 am
SEA
- ILM
2 stops13h 50m
United Airlines
Deal found 5/12![United Airlines logo]()
$526
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 May 14, 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 May 14, 2026.
This United Airlines deal was found by Cheapflights users on 5/13. 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 10/286:00 am
ILM
- SEA
2 stops15h 59m
United Airlines
Sat 10/3112:20 pm
SEA
- ILM
1 stop8h 33m
United Airlines
Deal found 5/13![United Airlines logo]()
$484
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:45 pm
ILM
- SEA
1 stop9h 18m
Delta
Wed 9/96:00 am
SEA
- ILM
2 stops13h 59m
Delta
Deal found 5/9![Delta logo]()
$530
This Alaska Airlines deal was found by Cheapflights users on 5/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:04 pm
ILM
- SEA
1 stop8h 54m
Alaska Airlines
Tue 9/89:24 pm
SEA
- ILM
1 stop9h 52m
Alaska Airlines
Deal found 5/9![Alaska Airlines logo]()
$606
This Sun Country Air deal was found by Cheapflights users on 5/13. 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.
Thu 6/1812:31 pm
ILM
- SEA
1 stop22h 54m
Sun Country Air
Sat 6/206:24 pm
SEA
- ILM
1 stop13h 54m
Sun Country Air
Deal found 5/13![Sun Country Air logo]()
$685
This Delta deal was found by Cheapflights users on 5/12. 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.
Sun 8/306:48 pm
ILM
- SEA
1 stop8h 09m
Delta
Sat 9/55:30 pm
SEA
- ILM
1 stop14h 37m
Delta
Deal found 5/12![Delta logo]()
$556
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:28 pm
ILM
- SEA
2 stops12h 06m
Alaska Airlines
Sat 9/269:24 pm
SEA
- ILM
1 stop9h 52m
Alaska Airlines
Deal found 5/11![Alaska Airlines logo]()
$611
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:30 pm
ILM
- SEA
1 stop9h 08m
Delta
Mon 9/75:30 pm
SEA
- ILM
1 stop26h 39m
Delta
Deal found 5/9![Delta logo]()
$586
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:00 pm
ILM
- SEA
1 stop8h 24m
Delta
Mon 9/75:30 pm
SEA
- ILM
1 stop26h 39m
Delta
Deal found 5/9![Delta logo]()
$586
Last-minute flights from Wilmington to SeattleDiscover last-minute flight deals from Wilmington to Seattle. Data last updated May 14, 2026 and is based on user searches.
Discover last-minute flight deals from Wilmington to Seattle. Data last updated May 14, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:30 am
ILM
- SEA
1 stop9h 46m
United Airlines
Mon 6/111:49 pm
SEA
- ILM
2 stops12h 07m
United Airlines
Deal found 5/10![United Airlines logo]()
$505
This American Airlines deal was found by Cheapflights users on 5/13. 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.
Thu 5/283:08 pm
ILM
- SEA
1 stop10h 50m
American Airlines
Mon 6/110:50 am
SEA
- ILM
1 stop7h 42m
American Airlines
Deal found 5/13![American Airlines logo]()
$541
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:09 am
ILM
- SEA
1 stop10h 01m
American Airlines
Tue 6/95:10 am
SEA
- ILM
1 stop7h 45m
American Airlines
Deal found 5/10![American Airlines logo]()
$482
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 6/21:02 pm
ILM
- SEA
1 stop9h 34m
United Airlines
Tue 6/911:00 pm
SEA
- ILM
1 stop10h 19m
United Airlines
Deal found 5/11![United Airlines logo]()
$489
This American Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 6/163:33 pm
ILM
- SEA
1 stop7h 41m
American Airlines
Fri 6/2610:23 am
SEA
- ILM
1 stop10h 02m
American Airlines
Deal found 5/11![American Airlines logo]()
$571
This Sun Country Air deal was found by Cheapflights users on 5/11. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1812:31 pm
ILM
- SEA
1 stop13h 15m
Sun Country Air
Wed 6/2411:59 pm
SEA
- ILM
1 stop8h 34m
Sun Country Air
Deal found 5/11![Sun Country Air logo]()
$575
This American Airlines deal was found by Cheapflights users on 5/13. 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 6/194:35 pm
ILM
- SEA
1 stop10h 09m
American Airlines
Mon 6/225:10 am
SEA
- ILM
1 stop7h 45m
American Airlines
Deal found 5/13![American Airlines logo]()
$547
This American Airlines deal was found by Cheapflights users on 5/13. 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.
Wed 6/245:09 am
ILM
- SEA
1 stop7h 41m
American Airlines
Fri 7/1011:40 am
SEA
- ILM
1 stop9h 17m
American Airlines
Deal found 5/13![American Airlines logo]()
$496
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 May 14, 2026.
Search for one-way flight options from Wilmington to Seattle. Find affordable one-way fares based on user searches. Data last updated May 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/268:20 pm
ILM
- SEA
3 stops41h 19m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:20 pm
ILM
- SEA
3 stops41h 15m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/262:25 pm
ILM
- SEA
2 stops22h 23m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$296
This Expedia deal was found by Cheapflights users on 5/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:30 pm
ILM
- SEA
1 stop9h 19m
JetBlue
Deal found 5/13![JetBlue logo]()
$302
This Booking.com deal was found by Cheapflights users on 5/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2612:30 pm
ILM
- SEA
1 stop13h 16m
Sun Country Air
Deal found 5/14![Sun Country Air logo]()
$303
This United Airlines deal was found by Cheapflights users on 5/12. 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 7/17:30 am
ILM
- SEA
2 stops14h 36m
United Airlines
Deal found 5/12![United Airlines logo]()
$331
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Wed 7/14:35 pm
ILM
- SEA
1 stop11h 24m
American Airlines
Deal found 5/12![American Airlines logo]()
$340
This American Airlines deal was found by Cheapflights users on 5/14. 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 6/263:32 pm
ILM
- SEA
1 stop12h 09m
American Airlines
Deal found 5/14![American Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:50 pm
ILM
- SEA
3 stops39h 17m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$561
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 May 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $445 (American Airlines) |
One-way from | $249 (Kiwi.com) |
Popular in | July |
Cheapest in | September |
Average price | $576 |
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 May 14, 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
WilmingtonSeattle
ILM - SEA
ILMSEA
Wilmington New Hanover County
Wed 10/28
6:00 am-6:59 pm
2 stops15h 59m
Seattle/Tacoma Intl
Sat 10/31
12:20 pm-11:53 pm
1 stop8h 33m
$484
WilmingtonSeattle
ILM - SEA
ILMSEA
Wilmington New Hanover County
Wed 9/2
5:45 pm-12:03 am
1 stop9h 18m
Seattle/Tacoma Intl
Wed 9/9
6:00 am-10:59 pm
2 stops13h 59m
$530
WilmingtonSeattle
ILM - SEA
ILMSEA
Wilmington New Hanover County
Sun 8/30
6:48 pm-11:57 pm
1 stop8h 09m
Seattle/Tacoma Intl
Sat 9/5
5:30 pm-11:07 am
1 stop14h 37m
$556
WilmingtonSeattle
ILM - SEA
ILMSEA
Wilmington New Hanover County
Tue 9/1
2:30 pm-8:38 pm
1 stop9h 08m
Seattle/Tacoma Intl
Mon 9/7
5:30 pm-11:09 pm
1 stop26h 39m
$586
WilmingtonSeattle
ILM - SEA
ILMSEA
Wilmington New Hanover County
Sat 9/5
3:00 pm-8:24 pm
1 stop8h 24m
Seattle/Tacoma Intl
Mon 9/7
5:30 pm-11:09 pm
1 stop26h 39m
$586
Quickest round-trip
WilmingtonSeattle
ILM - SEA
ILMSEA
Wilmington New Hanover County
Thu 9/3
3:04 pm-8:58 pm
1 stop8h 54m
Seattle/Tacoma Intl
Tue 9/8
9:24 pm-10:16 am
1 stop9h 52m
$606
WilmingtonSeattle
ILM - SEA
ILMSEA
Wilmington New Hanover County
Wed 9/23
1:28 pm-10:34 pm
2 stops12h 06m
Seattle/Tacoma Intl
Sat 9/26
9:24 pm-10:16 am
1 stop9h 52m
$611
WilmingtonSeattle
ILM - SEA
ILMSEA
Wilmington New Hanover County
Thu 6/18
12:31 pm-8:25 am
1 stop22h 54m
Seattle/Tacoma Intl
Sat 6/20
6:24 pm-11:18 am
1 stop13h 54m
$685
Cheapest one-way
WilmingtonSeattle
ILM - SEA
ILMSEA
Wilmington New Hanover County
Thu 8/20
4:30 pm-10:35 am
2 stops45h 05m
$274
WilmingtonSeattle
ILM - SEA
ILMSEA
Wilmington New Hanover County
Fri 6/26
2:25 pm-9:48 am
2 stops22h 23m
$296
Showing 1-10 of 15 resultsSorted 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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 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
What is the cheapest month to book a flight from Wilmington to Seattle?
Currently, September is the cheapest month in which you can book a flight from Wilmington to Seattle (average of $338). Flying from Wilmington to Seattle in July is currently the most expensive (average of $641). 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.
How much does it cost to fly round-trip 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 May 14, 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.
Comfort
7.2
Boarding
7.5
Crew
7.9
Entertainment
6.9
Food
6.4
Overall
7.1
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Comfort
7.2
Boarding
7.5
Crew
7.9
Entertainment
6.9
Food
6.4
Overall
7.1
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
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
Tacoma
Ocean Shores
Olympia
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
Marysville
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Wilmington and Seattle flights
Browse other Wilmington and Seattle flight options. Last updated on May 14, 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 May 14, 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 May 14, 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 2,558,603 searches. Data last updated May 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$308 | Average$500 | FlexibilityNo cancel fee | On-time71% |