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$140+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — SEA
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap 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 January 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Popular in

December

Cheapest in

October

Average price

$346
Provider with most accurate pricing for New Windsor Stewart-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for New Windsor Stewart-Seattle/Tacoma Intl flights.
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Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/7. 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 1/237:33 pmSWF - SEA
2 stops42h 46mMultiple Airlines
Deal found 1/7$140
This Mytrip deal was found by Cheapflights users on 1/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2211:52 amSWF - SEA
3 stops28h 38mMultiple Airlines
Deal found 1/7$391
This Mytrip deal was found by Cheapflights users on 1/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2410:28 amSWF - SEA
3 stops33h 47mMultiple Airlines
Deal found 1/8$403
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Sun 6/149:38 amSWF - SEA
3 stops30h 19mMultiple Airlines
Deal found 1/6$406
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Tue 6/2311:48 amSWF - SEA
3 stops24h 12mMultiple Airlines
Deal found 1/6$417
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Thu 6/1810:28 amSWF - SEA
3 stops36h 23mMultiple Airlines
Deal found 1/7$420

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 January 8, 2026.
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

Fri 1/23

7:33 pm-11:19 am

2 stops42h 46m

$140

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Sun 5/24

10:28 am-5:15 pm

3 stops33h 47m

$403

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Thu 6/18

10:28 am-12:57 pm

3 stops29h 29m

$403

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Sun 6/14

9:38 am-12:57 pm

3 stops30h 19m

$406

New WindsorSeattle

SWF - SEA

SWFSEA

New Windsor Stewart

Tue 6/23

11:48 am-9:00 am

3 stops24h 12m

$417

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

  • 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 April 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 April 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
Ocean Shores
Olympia
Lynnwood
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Marysville
Fife
Aberdeen
Shoreline
Centralia
Federal Way
Chehalis
Tumwater

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