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Stewart

$130+ Cheap flights from Seattle to New Windsor (SEA - SWF)

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SWF
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Cheap flight deals from Seattle to Stewart

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Stewart (SWF). 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 October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

December

Cheapest in

September

Average price

$317
Provider with most accurate pricing for Seattle/Tacoma Intl-New Windsor Stewart flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-New Windsor Stewart flights.
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Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Seattle to Stewart

One-way flights from Seattle to Stewart
Search for one-way flight options from Seattle to Stewart. Find affordable one-way fares based on user searches. Data last updated October 27, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/25. 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 1/102:02 pmSEA - SWF
2 stops18h 06mMultiple Airlines
Deal found 10/25$130
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 1/82:54 pmSEA - SWF
3 stops17h 37mMultiple Airlines
Deal found 10/25$142
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 1/221:39 pmSEA - SWF
3 stops18h 52mMultiple Airlines
Deal found 10/25$154
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/612:48 pmSEA - SWF
3 stops43h 49mMultiple Airlines
Deal found 10/26$156
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 11/226:49 pmSEA - SWF
2 stops36h 18mMultiple Airlines
Deal found 10/25$157
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/41:09 pmSEA - SWF
2 stops26h 31mMultiple Airlines
Deal found 10/26$159
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/135:21 pmSEA - SWF
3 stops39h 16mMultiple Airlines
Deal found 10/26$160
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 11/148:22 pmSEA - SWF
3 stops59h 49mMultiple Airlines
Deal found 10/24$163

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Stewart 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 October 27, 2025.
Use the filters below to find and compare flights from Seattle to New Windsor that are best for you.

Fly from

Seattle

Fly to

Stewart

Route

Depart

Return

Price

SeattleNew Windsor

SEA - SWF

SEASWF

Seattle/Tacoma Intl

Sat 1/10

2:02 pm-11:08 am

2 stops18h 06m

$130

SeattleNew Windsor

SEA - SWF

SEASWF

Seattle/Tacoma Intl

Thu 1/8

2:54 pm-11:31 am

3 stops17h 37m

$142

SeattleNew Windsor

SEA - SWF

SEASWF

Seattle/Tacoma Intl

Thu 1/22

1:39 pm-11:31 am

3 stops18h 52m

$154

SeattleNew Windsor

SEA - SWF

SEASWF

Seattle/Tacoma Intl

Sat 11/22

6:49 pm-10:07 am

2 stops36h 18m

$157

SeattleNew Windsor

SEA - SWF

SEASWF

Seattle/Tacoma Intl

Thu 12/4

1:09 pm-6:40 pm

2 stops26h 31m

$159

SeattleNew Windsor

SEA - SWF

SEASWF

Seattle/Tacoma Intl

Sat 12/13

5:21 pm-11:37 am

3 stops39h 16m

$160

SeattleNew Windsor

SEA - SWF

SEASWF

Seattle/Tacoma Intl

Fri 11/14

8:22 pm-11:11 am

3 stops59h 49m

$163

SeattleNew Windsor

SEA - SWF

SEASWF

Seattle/Tacoma Intl

Sat 12/6

12:48 pm-11:03 am

2 stops19h 15m

$175

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Compare providers for flights from Seattle to Stewart

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Stewart in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

Have a flexible travel schedule? Discover the best time to fly to Stewart from Seattle 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 Seattle to New Windsor

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

Currently, November is the cheapest month in which you can book a flight from Seattle to New Windsor (average of $128). Flying from Seattle to New Windsor in January is currently the most expensive (average of $222). 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 Seattle to Stewart. 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 Seattle to Stewart that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Stewart 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 Seattle to New Windsor?

    Currently, November is the cheapest month in which you can book a flight from Seattle to New Windsor (average of $128). Flying from Seattle to New Windsor in January is currently the most expensive (average of $222). 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 New Windsor?

Book flights to New Windsor if you plan to visit one of these locations
Kingston

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