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Stewart

$419+ Cheap flights from Portugal to New Windsor (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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SWF
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Portugal to Stewart

One-way flights from Portugal to Stewart
Search for one-way flight options from Portugal to Stewart. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/47:50 pm
LIS
-
SWF
3 stops44h 41m
Multiple Airlines
Deal found 2/2$419
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 5/98:35 pm
LIS
-
SWF
3 stops43h 20m
Multiple Airlines
Deal found 2/1$446
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/267:00 am
LIS
-
SWF
3 stops33h 31m
Multiple Airlines
Deal found 2/2$449
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 5/99:50 pm
OPO
-
SWF
2 stops42h 05m
Multiple Airlines
Deal found 2/1$453
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 6/96:30 am
LIS
-
SWF
3 stops33h 55m
Multiple Airlines
Deal found 2/3$480
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 5/296:35 am
OPO
-
SWF
3 stops33h 50m
Multiple Airlines
Deal found 2/2$493
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 6/1110:20 pm
OPO
-
SWF
3 stops42h 05m
Multiple Airlines
Deal found 2/2$504
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 6/56:20 am
LIS
-
SWF
3 stops34h 05m
Multiple Airlines
Deal found 2/2$518
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/127:00 am
LIS
-
SWF
3 stops32h 31m
Multiple Airlines
Deal found 2/2$533
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/57:00 am
LIS
-
SWF
3 stops33h 31m
Multiple Airlines
Deal found 2/3$558
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 5/166:55 am
OPO
-
SWF
2 stops31h 03m
Multiple Airlines
Deal found 2/2$563
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 5/3110:40 am
LIS
-
SWF
2 stops27h 11m
Multiple Airlines
Deal found 2/3$564

Find flight deals from Portugal to Stewart

Keep the following information in mind while searching for Portugal to Stewart flight deals. Data was last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

February

Average price

$523
Provider with most accurate pricing for Lisbon Humberto Delgado-New York (NYC) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-New York (NYC) flights.
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($87 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal 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 February 4, 2026.
Use the filters below to find and compare flights from Portugal to New Windsor that are best for you.

Fly from

Portugal

Fly to

Stewart

Route

Depart

Return

Price

LisbonNew Windsor

LIS - SWF

LISSWF

Lisbon Humberto Delgado

Sat 5/9

8:35 pm-10:55 am

3 stops43h 20m

$446

LisbonNew Windsor

LIS - SWF

LISSWF

Lisbon Humberto Delgado

Thu 2/26

7:00 am-11:31 am

3 stops33h 31m

$449

PortoNew Windsor

OPO - SWF

OPOSWF

Porto

Sat 5/9

9:50 pm-10:55 am

2 stops42h 05m

$453

LisbonNew Windsor

LIS - SWF

LISSWF

Lisbon Humberto Delgado

Tue 6/9

6:30 am-11:25 am

3 stops33h 55m

$480

PortoNew Windsor

OPO - SWF

OPOSWF

Porto

Fri 5/29

6:35 am-11:25 am

3 stops33h 50m

$493

PortoNew Windsor

OPO - SWF

OPOSWF

Porto

Thu 6/11

10:20 pm-11:25 am

3 stops42h 05m

$504

LisbonNew Windsor

LIS - SWF

LISSWF

Lisbon Humberto Delgado

Fri 6/5

6:20 am-11:25 am

3 stops34h 05m

$518

LisbonNew Windsor

LIS - SWF

LISSWF

Lisbon Humberto Delgado

Thu 3/12

7:00 am-11:31 am

3 stops32h 31m

$533

LisbonNew Windsor

LIS - SWF

LISSWF

Lisbon Humberto Delgado

Thu 3/5

7:00 am-11:31 am

3 stops33h 31m

$558

PortoNew Windsor

OPO - SWF

OPOSWF

Porto

Sat 5/16

6:55 am-8:58 am

2 stops31h 03m

$563

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 18 results
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Best time to book a flight from Portugal to Stewart

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

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

Currently, November is the cheapest month in which you can book a flight from Portugal to New Windsor (average of $371). Flying from Portugal to New Windsor in December is currently the most expensive (average of $506). 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 Portugal to Stewart. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to New Windsor from Portugal?

    New Windsor Stewart (SWF) is the airport you will fly into if you book a flight from Portugal to New Windsor. It is only a 4.3 mi journey from Stewart (SWF) to New Windsor’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portugal 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 Portugal to New Windsor?

    Currently, November is the cheapest month in which you can book a flight from Portugal to New Windsor (average of $371). Flying from Portugal to New Windsor in December is currently the most expensive (average of $506). 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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Alternative routes for Portugal to Stewart

See prices for flight routes from nearby airports that may be better suited for you.
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