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$269+ 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 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — SEA
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
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 December 8, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/8. 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 12/227:10 pmSWF - SEA
2 stops20h 20mMultiple Airlines
Deal found 12/8$269
This Kiwi.com deal was found by Cheapflights users on 12/7. 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 12/198:11 pmSWF - SEA
2 stops41h 00mMultiple Airlines
Deal found 12/7$288
This Kiwi.com deal was found by Cheapflights users on 12/6. 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 12/209:45 amSWF - SEA
2 stops29h 45mMultiple Airlines
Deal found 12/6$315
This Kiwi.com deal was found by Cheapflights users on 12/8. 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 12/1411:43 amSWF - SEA
2 stops27h 10mMultiple Airlines
Deal found 12/8$324
This Kiwi.com deal was found by Cheapflights users on 12/7. 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 12/245:34 pmSWF - SEA
2 stops43h 37mMultiple Airlines
Deal found 12/7$342

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 December 8, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Popular in

December

Cheapest in

October

Average price

$537
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. 4% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 8, 2025.
Use the filters below to find and compare flights from New Windsor to Seattle that are best for you.

Fly from

Stewart

Fly to

Seattle

Route

Depart

Return

Price

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Mon 12/22

7:10 pm-12:30 pm

2 stops20h 20m

$269

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Fri 12/19

8:11 pm-10:11 am

2 stops41h 00m

$288

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Sat 12/20

9:45 am-12:30 pm

2 stops29h 45m

$315

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Sun 12/14

11:43 am-11:53 am

2 stops27h 10m

$324

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Wed 12/24

5:34 pm-10:11 am

2 stops43h 37m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

  • 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.

Cheapflights Insights

Everything you need to know about your flight from New Windsor to Seattle

What is the cheapest month to book a flight from New Windsor to Seattle?

Currently, October is the cheapest month in which you can book a flight from New Windsor to Seattle (average of $148). Flying from New Windsor to Seattle in March is currently the most expensive (average of $237). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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.

  • What is the cheapest month to book a flight from New Windsor to Seattle?

    Currently, October is the cheapest month in which you can book a flight from New Windsor to Seattle (average of $148). Flying from New Windsor to Seattle in March is currently the most expensive (average of $237). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Olympia
Ocean Shores
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Tukwila
Kent
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

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