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$143+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — SEA
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
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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 July 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/19. 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 8/307:31 pm
SWF
-
SEA
3 stops40h 48m
Multiple Airlines
Deal found 7/19$143
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/245:39 pm
SWF
-
SEA
3 stops46h 43m
Multiple Airlines
Deal found 7/20$155
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Fri 9/1111:06 am
SWF
-
SEA
3 stops40h 21m
Multiple Airlines
Deal found 7/20$157
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 10/411:48 am
SWF
-
SEA
3 stops39h 39m
Multiple Airlines
Deal found 7/18$165
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/277:31 pm
SWF
-
SEA
3 stops40h 48m
Multiple Airlines
Deal found 7/20$170
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Sat 9/1212:39 pm
SWF
-
SEA
3 stops38h 48m
Multiple Airlines
Deal found 7/20$174
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 8/201:00 pm
SWF
-
SEA
3 stops47h 19m
Multiple Airlines
Deal found 7/18$177
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 9/410:36 am
SWF
-
SEA
3 stops49h 43m
Multiple Airlines
Deal found 7/18$178

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 July 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

October

Average price

$520
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. 19% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 21, 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

Fri 9/4

10:36 am-9:19 am

3 stops49h 43m

$178

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Sat 9/5

12:05 pm-9:19 am

2 stops24h 14m

$201

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Mon 9/28

11:21 am-12:27 am

3 stops40h 06m

$202

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Wed 8/26

12:05 pm-10:39 am

3 stops49h 34m

$221
Quickest one-way

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Wed 10/7

12:39 pm-9:51 am

3 stops24h 12m

$225

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Thu 9/24

10:56 am-12:27 am

3 stops40h 31m

$227

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Mon 8/31

11:10 am-10:39 am

3 stops26h 29m

$236

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Tue 8/18

11:48 am-10:39 am

3 stops49h 51m

$245

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Sat 8/15

6:50 pm-11:04 am

3 stops43h 14m

$268

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Sat 10/17

12:39 pm-9:51 am

3 stops24h 12m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/18

Sorted by cheapest first
  • 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
Renton
Lacey
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Issaquah

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