ILM - SEA

$198 Find Cheap Flights from Wilmington to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Wilmington to Seattle departing on 6/1. 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 Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Wilmington to Seattle, 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 Wilmington to Seattle, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$369
Typical prices: $419-$308
United Airlines
Wed 9/9Sun 9/13
ILM - SEA • 1 stop
Cheapest one-way
$198
Typical prices: $295-$393
Multiple Airlines
Mon 6/1
ILM - SEA • 2 stops
Top airlines
United Airlines
Cheapest • from $369 (round-trip)
American Airlines
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Wilmington and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Minneapolis (MSP)
Cheapest • Avg $486 (round-trip)
Charlotte (CLT)
Shortest trip • 8h 23m (one-way)
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 33% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Wilmington to Seattle (ILM-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Wilmington to Seattle 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 Wilmington to Seattle

Wed, Sep 9 - Sun, Sep 13
United Airlines Logo
4:09 pm - 10:42 pm
ILM
-
SEA
9h 33m
1 stop
United Airlines Logo
11:00 pm - 12:05 pm
SEA
-
ILM
10h 05m
1 stop
$369United Airlines
Wed, Sep 9 - Sun, Sep 13
United Airlines Logo
7:30 am - 7:08 pm
ILM
-
SEA
14h 38m
2 stops
United Airlines Logo
11:00 pm - 12:05 pm
SEA
-
ILM
10h 05m
1 stop
$374United Airlines
Sat, Sep 5 - Wed, Sep 9
United Airlines Logo
4:15 pm - 11:11 pm
ILM
-
SEA
9h 56m
1 stop
United Airlines Logo
7:00 am - 11:50 pm
SEA
-
ILM
13h 50m
2 stops
$432United Airlines
Wed, Aug 26 - Sun, Aug 30
United Airlines Logo
7:30 am - 6:59 pm
ILM
-
SEA
14h 29m
2 stops
United Airlines Logo
10:47 pm - 12:05 pm
SEA
-
ILM
10h 18m
2 stops
$433United Airlines
Tue, Jun 2 - Tue, Jun 9
American Airlines Logo
5:09 am - 9:50 am
ILM
-
SEA
7h 41m
1 stop
American Airlines Logo
10:35 pm - 12:24 pm
SEA
-
ILM
10h 49m
1 stop
$445American Airlines
Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
4:53 pm - 10:26 pm
ILM
-
SEA
8h 33m
1 stop
American Airlines Logo
11:59 pm - 11:30 am
SEA
-
ILM
8h 31m
1 stop
$465American Airlines
Wed, Sep 9 - Sun, Sep 13
United Airlines Logo
4:09 pm - 10:42 pm
ILM
-
SEA
9h 33m
1 stop
United Airlines Logo
11:00 pm - 12:05 pm
SEA
-
ILM
10h 05m
1 stop
$479United Airlines
Thu, Sep 10 - Sun, Sep 13
United Airlines Logo
4:09 pm - 10:42 pm
ILM
-
SEA
9h 33m
1 stop
United Airlines Logo
11:00 pm - 12:05 pm
SEA
-
ILM
10h 05m
1 stop
$482United Airlines
Wed, Sep 9 - Tue, Sep 15
United Airlines Logo
4:09 pm - 10:42 pm
ILM
-
SEA
9h 33m
1 stop
United Airlines Logo
10:47 pm - 12:05 pm
SEA
-
ILM
10h 18m
2 stops
$484United Airlines
Mon, Jun 1 - Sat, Jun 6
American Airlines Logo
3:08 pm - 10:58 pm
ILM
-
SEA
10h 50m
1 stop
American Airlines Logo
5:15 am - 3:58 pm
SEA
-
ILM
7h 43m
1 stop
$486American Airlines
Booking Insights

KAYAK's insights & trends for Wilmington to Seattle flights

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

How much is a round-trip flight from Wilmington to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Wilmington to Seattle departing in September.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Wilmington to Seattle, 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 Wilmington to Seattle is September, where tickets cost $338 (return) on average. On the other hand, the most expensive months are April and July, where the average cost of round-trip tickets is $744 and $608 respectively.

Find deals

Good to know

Low seasonMarch
Cheapest flight$198
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Wilmington to Seattle

When to book flights from Wilmington to Seattle

Are your dates flexible? Find out the best times to travel from Wilmington to Seattle 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 Wilmington to Seattle

  • What is the cheapest flight from Wilmington to Seattle?

    In the last 3 days, the lowest price for a flight from Wilmington to Seattle was $198 for a one-way ticket and $369 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

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

  • Which airline alliances offer flights from Wilmington to Seattle?

    oneworld is the only airline alliance operating flights between Wilmington and Seattle.

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

    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 Wilmington to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Wilmington 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 Wilmington to Seattle?

    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 Seattle with an airline and back to Wilmington with another airline. Booking your flights between Wilmington and SEA 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 Wilmington to Seattle?

    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 Seattle from Wilmington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Wilmington to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Wilmington to Seattle. 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 Wilmington to Seattle? 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.
7.1
American AirlinesOverall score based on 11672 reviews
7.2Comfort
6.4Food
6.9Entertainment
7.5Boarding
7.9Crew
Airline reviews

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

6.0 GoodSarah, Apr 2026
ILM - CLT
Read more American Airlines reviews

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

Airlines should be prohibited from using the seats they get away with.

Got home at 3am after deboarding the plane. No compensation offered by American

The "on the ground" A/C was not working. It was so hot while waiting to get in the air, a passenger from the rear of the plan declared "I just can't!" and waited in the gangway until time to close the doors. It was miserable. But the crew were champs and had an amazing attitude. I know they were as miserable as we were but didn't let that affect their performance.

When I booked my flight a month ago - I selected a seat. That seat was NOT the one I ended up with when I checked into my flight the day before. This is the second time this has occurred. So, I checked my next flight on Wednesday and Thursday and no seat was assigned. Poor, very poor customer service.

Cleared standby and gave up my seat. Terrible policy and boarding experience

Message about flight cancelation was received late due to being in the air. No explanation, just canceled and booked on morning flight. We had to stay in the airport overnight because there was no transportation offered to get to the hotel that AA had available. Actual inflight was fine.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

Ceiling fell down and had to have maintenance come and duct tape it up. No WiFi on the flight.

I appreciate that I finally got the seat I paid extra for this time. Thank you

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

Information on your arrival and departure airports

Wilmington (ILM)
Seattle (SEA)