SEA - ILM

$289 Find Cheap Flights from Seattle to Wilmington

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Wilmington departing on 1/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Wilmington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Wilmington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Wilmington, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$293
Overall average: $393
American Airlines
Thu 1/15Fri 1/30
SEA - ILM • 1 stop
Cheapest one-way
$454
Typical prices: $268-$341
Multiple Airlines
Sun 12/28
SEA - ILM • 3 stops
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 22% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Wilmington!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Wilmington (SEA-ILM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Wilmington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Wilmington

Thu, Jan 15 - Fri, Jan 30
American Airlines Logo
8:35 am - 9:15 pm
SEA
-
ILM
9h 40m1 stop
American Airlines Logo
2:00 pm - 7:04 pm
ILM
-
SEA
8h 04m1 stop
$293American Airlines
Thu, Jan 15 - Fri, Jan 30
American Airlines Logo
8:35 am - 9:15 pm
SEA
-
ILM
9h 40m1 stop
American Airlines Logo
2:00 pm - 10:20 pm
ILM
-
SEA
11h 20m2 stops
$298American Airlines
Fri, Jan 30 - Wed, Feb 4
American Airlines Logo
7:00 am - 4:47 pm
SEA
-
ILM
6h 47m1 stop
American Airlines Logo
2:00 pm - 7:04 pm
ILM
-
SEA
8h 04m1 stop
$329American Airlines
Fri, Jan 30 - Wed, Feb 4
American Airlines Logo
7:00 am - 4:47 pm
SEA
-
ILM
6h 47m1 stop
American Airlines Logo
6:00 am - 1:08 pm
ILM
-
SEA
10h 08m2 stops
$334American Airlines
Sat, Jan 17 - Sun, Feb 1
Delta Logo
11:20 am - 9:57 am
SEA
-
ILM
19h 37m2 stops
Delta Logo
5:41 pm - 11:15 pm
ILM
-
SEA
8h 34m1 stop
$339Delta
Wed, Jan 14 - Fri, Jan 30
Delta Logo
11:10 pm - 4:52 pm
SEA
-
ILM
14h 42m2 stops
Delta Logo
5:41 pm - 11:15 pm
ILM
-
SEA
8h 34m1 stop
$367Delta
Wed, Jan 14 - Tue, Jan 27
Delta Logo
4:05 pm - 1:43 pm
SEA
-
ILM
18h 38m1 stop
Delta Logo
5:41 pm - 11:15 pm
ILM
-
SEA
8h 34m1 stop
$375Delta
Tue, Jan 13 - Wed, Jan 28
Delta Logo
6:05 am - 11:51 pm
SEA
-
ILM
14h 46m2 stops
Delta Logo
5:41 pm - 11:15 pm
ILM
-
SEA
8h 34m1 stop
$378Delta
Sat, Jan 17 - Wed, Jan 28
Delta Logo
11:20 am - 9:57 am
SEA
-
ILM
19h 37m2 stops
Delta Logo
6:00 am - 9:49 pm
ILM
-
SEA
18h 49m2 stops
$379Delta
Mon, Jan 12 - Tue, Jan 27
Delta Logo
7:25 am - 9:57 am
SEA
-
ILM
23h 32m2 stops
Delta Logo
5:41 pm - 11:15 pm
ILM
-
SEA
8h 34m1 stop
$388Delta
Booking Insights

KAYAK's insights & trends for Seattle to Wilmington flights

Get data-powered insights and trends into flights from Seattle to Wilmington to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to Wilmington?

The average price of all round-trip flights from Seattle to Wilmington clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Wilmington on a Wednesday and more expensive on a Sunday. On your return trip to Seattle, you should consider flying back on a Saturday, and avoid Sundays for better deals.

What is the cheapest month to fly from Seattle to Wilmington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Wilmington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Wilmington is October, where tickets cost $383 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is $617 and $603 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Wilmington, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Wilmington, you should book around 2 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$293
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly with an average 22% increase in price.
Flight from Seattle to Wilmington

When to book flights from Seattle to Wilmington

Are your dates flexible? Find out the best times to travel from Seattle to Wilmington based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Wilmington

  • What is the cheapest flight from Seattle to Wilmington?

    In the last 3 days, the lowest price for a flight from Seattle to Wilmington was $454 for a one-way ticket and $293 for a round-trip.

  • Do I need a passport to fly between Seattle and Wilmington?

    A passport is not required to fly from Seattle to Wilmington.

  • Which aircraft models fly most regularly from Seattle to Wilmington?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Wilmington?

    SkyTeam, and oneworld are the airline alliances operating flights between Seattle and Wilmington, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Wilmington, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Wilmington are Delta and American Airlines. With an average price for the route of $536 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $512 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Seattle to Wilmington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Wilmington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Wilmington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Wilmington from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Wilmington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Wilmington with an airline and back to Seattle with another airline. Booking your flights between Seattle and ILM can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Wilmington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Wilmington from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Seattle to Wilmington

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Wilmington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Wilmington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8005 reviews
7.9Entertainment
8.5Crew
8.1Boarding
7.3Food
7.9Comfort
Airline reviews

Great. I had to modify a flight. That was easy and free. Thank You

10.0 ExcellentOlumuyiwa, Dec 2025
DTW - ATL
Read more Delta reviews

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Good seats in Main cabin, excellent service and excellent landing

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

Food was surprisingly good but the WiFi was not great

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

My flight was delayed about three hours. I got home at 3:30 in the morning very bad experience.

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

Did not get any refreshments. Crew was very nice but limited. Small seats

The flight was flawless and we even arrived between 20 and 25 minutes early!

Typically flights with AA are good. The staff are pleasant, welcoming, and efficient.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

We had 3 flights. 1 & 2 were on the same plane but we had to de-board just to re-board 30 mins later. That may have been due to a crew change though. Our 3rd flight had a couple “maintenance” issues that held us up. They were quickly resolved but it took forever for someone to bring the paperwork needed so we could leave. Apparently there was a computer glitch so a driver had to bring a physical copy. It delayed us about 1 1/2 hrs. The flights themselves were smooth & no problems. For boarding, I don’t know why they don’t start with the back of the plane & move forward. It would eliminate the back up from people trying to find their seats & put their bags in the overhead bins. Unless you’re on an overseas flight, there is no food, you get a beverage & either a small bag of pretzels or a biscuit cookie. Take your own food or snacks of you want something more.

The actual trip was fine, however, the changes made to our flights and the layovers were had to endure were awful.

Most things were ok but the main problem was the cabin staff; they were very abrupt and not very friendly. They were busy and often rushed, snatching drinks off people before finished and bossing them about.

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

Information on your arrival and departure airports