HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$189+ Cheap flights from New Windsor to Seattle (SWF - 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — SEA
May 25 — Jun 11
Mon 5/25
Mon 6/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Stewart 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 Stewart to Seattle

One-way flights from Stewart to Seattle
Search for one-way flight options from Stewart to Seattle. Find affordable one-way fares based on user searches. Data last updated April 25, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Mon 6/19:41 am
SWF
-
SEA
2 stops27h 25m
Multiple Airlines
Deal found 4/21$189
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Mon 6/89:39 am
SWF
-
SEA
2 stops27h 56m
Multiple Airlines
Deal found 4/23$203
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 6/312:05 pm
SWF
-
SEA
3 stops52h 56m
Multiple Airlines
Deal found 4/20$208
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Mon 5/411:40 am
SWF
-
SEA
2 stops49h 09m
Multiple Airlines
Deal found 4/20$209
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Sat 5/3012:05 pm
SWF
-
SEA
3 stops57h 30m
Multiple Airlines
Deal found 4/22$211
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/79:38 am
SWF
-
SEA
2 stops27h 11m
Multiple Airlines
Deal found 4/23$214
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/107:47 pm
SWF
-
SEA
2 stops41h 02m
Multiple Airlines
Deal found 4/23$222
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 6/79:38 am
SWF
-
SEA
2 stops51h 10m
Multiple Airlines
Deal found 4/23$223
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 6/49:38 am
SWF
-
SEA
2 stops31h 23m
Multiple Airlines
Deal found 4/20$224
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Mon 5/259:41 am
SWF
-
SEA
3 stops51h 25m
Multiple Airlines
Deal found 4/21$225

Find flight deals from Stewart to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Stewart (SWF) 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 April 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

December

Cheapest in

October

Average price

$434
Provider with most accurate pricing for New Windsor Stewart-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for New Windsor Stewart-Seattle/Tacoma Intl flights.
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Stewart 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 April 25, 2026.
Use the filters below to find and compare flights from New Windsor to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Wed 6/3

12:05 pm-2:01 pm

3 stops52h 56m

$208

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Thu 5/7

9:38 am-9:49 am

2 stops27h 11m

$214

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Mon 6/8

12:17 pm-10:35 am

3 stops25h 18m

$232

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Sun 6/7

9:38 am-2:01 pm

2 stops31h 23m

$235
Quickest one-way

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Mon 6/1

12:17 pm-10:06 am

3 stops24h 49m

$236

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Sun 7/12

10:28 am-10:35 am

3 stops51h 07m

$236

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Wed 6/10

12:05 pm-10:35 am

3 stops25h 30m

$238

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Sun 5/31

9:38 am-10:06 am

3 stops51h 28m

$241

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Fri 5/29

9:41 am-10:06 am

3 stops51h 25m

$249

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Thu 6/4

8:04 pm-6:35 pm

3 stops49h 31m

$250

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 11 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on New Windsor-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on New Windsor-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from New Windsor-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on New Windsor-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 New Windsor-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 Stewart to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Stewart with our price prediction graph.
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.

Related info for your journey

Find useful and relevant information for your journey from Stewart to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Stewart to Seattle that include hotel bookings?

    Yes. In addition to deals on Stewart to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Stewart to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stewart to Seattle.

  • Can I find deals for business class flights from Stewart to Seattle?

    Yes. Cheapflights offers flight deals from Stewart to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Kent
Tumwater
Tukwila
Puyallup
Renton
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.