Cheap Flights from Wilmington to Seattle

Compare Wilmington to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

Book the best Seattle fare with no extra fees

Flight deals from Wilmington to Seattle

Looking for a cheap last-minute deal or the best return flight from Wilmington Airport to Seattle? If you want to travel next month, return fares start from $919. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Wilmington to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Wilmington to Seattle flights are currently cheapest in June.

Wilmington to Seattle: Flight information

The things to know before you go.
Cheapest flight found$623
Cheapest month to flyJune

Finding cheap flights from Wilmington to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Wilmington to Seattle is $623. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Wilmington to Seattle. But we found flights with one or more stops from $623.
As of June 2026, there are no flights flying from Wilmington to Seattle.
The cheapest month to fly from Wilmington to Seattle is usually June.
If you're flying from Wilmington Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $623.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Wilmington Airport to Seattle on Thursday, 25 June 2026.
No airlines currently offer direct flights between Wilmington Airport and Seattle. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 14°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, United offers the cheapest flight tickets to Seattle.

Travelling from Wilmington International Airport (ILM) to Seattle: what you need to know

  • Seattle is three hours behind Wilmington, where Wilmington International Airport is located. Seattle follows the UTC-8 timezone.

  • For stress-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to board your ILM to Seattle flight.

  • During popular months like July, you'll want to get to the airport earlier than usual. Plan to arrive two hours before domestic departures and four hours ahead of an international flight whenever you're travelling during a peak period in general.

  • Located around 6 kilometres from central Wilmington, ILM can be reached in about 20 minutes by car. Travelling on public transport will take roughly 40 minutes.

  • Searching for a hotel near ILM? If you're boarding an early flight from Wilmington International Airport to Seattle, these stays set you up for a seamless send-off:

  • Wilmington International Airport has a strong on-time record, so you're unlikely to face delays. Departures from ILM touch down on schedule 80% of the time.

  • You'll find ILM at 1740 Airport Boulevard.

How to find the cheapest flights from Wilmington International Airport (ILM) to Seattle

  • $480 is currently the best price for a one-way Wilmington International Airport to Seattle flight. Return plane tickets start at $623. These prices can change depending on demand.

  • Don't wait until the last moment. You're more likely to pick up cheap flights from ILM to Seattle if you book ahead. Airlines often offer some fantastic early bird rates.

  • If you have flexibility with your travel plans, check out the 'Whole month' search tool. It'll find the lowest price across every month when searching for your Wilmington International Airport to Seattle ticket.

  • You don't need to check every day to see if fares have dropped when you create a Price Alert. We'll update you as soon as there's an extra saving on cheap flights from ILM to Seattle.

  • Tailor your flights with filters. Pick your departure and arrival times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' flights from Wilmington International Airport to Seattle.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) to central Seattle takes about 25 minutes by car. The centre is roughly 23 kilometres away.

  • Travelling by public transport will take you around 35 minutes.

  • Look into staying at a hotel near SEA if you have a late flight from Wilmington International Airport to Seattle. Check in to one of these options and make your arrival easier:

  • Booking your ride from Seattle-Tacoma International Airport about one week ahead of your flight from ILM to Seattle can help you lock in the best possible rate.

Seattle Paine Field International Airport (PAE)

  • Once your flight from Wilmington International Airport to Seattle has hit the tarmac, you can make your way to the city centre in around 40 minutes by car. Central Seattle is roughly 40 kilometres from Seattle Paine Field International Airport (PAE).

  • If you're travelling on public transport, it'll take around 1 hour 30 minutes.

  • Place the 'Do not disturb' sign on your door and rest at a hotel near PAE. Here are a few options where you can settle in after your ILM to Seattle flight:

  • Lock in the vehicle you want, not just what's left over, by booking your ride from PAE ahead of time. You'll also avoid paying more than you have to, especially when the airport is busy.

King County International Airport (BFI)

  • Hop off your flight from Wilmington International Airport to Seattle and make your way to your hotel or start discovering the city right away. Central Seattle is around 11 kilometres from King County International Airport (BFI) and typically takes 20 minutes to reach driving.

  • The journey takes about 35 minutes by public transport.

  • Find a hotel near BFI and get from baggage claim to bedtime in a flash. Whether you're arriving on a late ILM to Seattle flight or just want to simplify your travel plans, these stays bring comfort closer to you:

  • Rental providers sometimes offer deals on early bookings, so secure your ride from BFI in advance of your flight from Wilmington International Airport to Seattle. A little prep work can make a big difference in cost.

Best time to go to Seattle

  • December is the quietest month for flights from Wilmington International Airport to Seattle, while July is the busiest. Find the ideal time to visit Seattle based on whether you want a laid-back vibe or a lively atmosphere.

  • Before locking in your Wilmington International Airport to Seattle plane ticket, think about what kind of weather works for you. August is the warmest month in Seattle, with temperatures ranging from 12ºC to 28ºC.

  • If you like travelling in cooler conditions, search for a cheap ticket from ILM to Seattle in February when temperatures average between -1ºC and 11ºC.

More about Seattle

  • Start your Seattle trip right by choosing the perfect place to stay. After booking your flight from Wilmington International Airport to Seattle, browse our range of accommodation options including:

  • There are so many things to do and see in this city it can be hard to work out where to start. Pike Place Market, Space Needle and Seattle Skyline are major attractions which should feature on any well-planned Seattle itinerary.

Explore more of the United States

  • Portland is just one of the many places in the United States waiting to be explored once you've taken in the sights of Seattle. Around 241 kilometres away to the south, its top attractions include Portland Japanese Garden, Peninsula Park Rose Garden and Beyond Van Gogh Portland.

  • If you're interested in discovering another side of the United States, head for Spokane, roughly 370 kilometres east of Seattle. Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes are among the biggest draws.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.