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Portugal

$382+ Cheap flights from New Windsor (SWF) to Portugal

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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — LIS
May 10 — May 171
Sun 5/10
Sun 5/17
1 adult, Economy
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Cheap flight deals from Stewart to Portugal

One-way flights from Stewart to Portugal
Search for one-way flight options from Stewart to Portugal. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/9. 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 6/612:05 pm
SWF
-
OPO
3 stops51h 25m
Multiple Airlines
Deal found 4/9$382
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 8/1912:05 pm
SWF
-
LIS
3 stops29h 05m
Multiple Airlines
Deal found 4/9$415
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
Sat 8/812:05 pm
SWF
-
LIS
3 stops29h 00m
Multiple Airlines
Deal found 4/7$420
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 5/3012:05 pm
SWF
-
LIS
3 stops51h 35m
Multiple Airlines
Deal found 4/9$423
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 6/312:05 pm
SWF
-
LIS
3 stops29h 05m
Multiple Airlines
Deal found 4/9$431
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 6/612:05 pm
SWF
-
LIS
3 stops51h 35m
Multiple Airlines
Deal found 4/9$446
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 9/1912:39 pm
SWF
-
LIS
3 stops26h 41m
Multiple Airlines
Deal found 4/9$450
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 8/2810:56 am
SWF
-
LIS
3 stops41h 39m
Multiple Airlines
Deal found 4/9$459
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 6/119:38 am
SWF
-
OPO
3 stops42h 47m
Multiple Airlines
Deal found 4/9$461
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 8/1512:05 pm
SWF
-
OPO
3 stops40h 30m
Multiple Airlines
Deal found 4/9$469
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 8/231:00 pm
SWF
-
PDL
3 stops40h 45m
Multiple Airlines
Deal found 4/9$492
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 7/2811:48 am
SWF
-
OPO
3 stops30h 22m
Multiple Airlines
Deal found 4/9$493

Find flight deals from Stewart to Portugal

Keep the following information in mind while searching for Stewart to Portugal flight deals. Data was last updated April 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

January

Average price

$651
Provider with most accurate pricing for New York (NYC)-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Lisbon Humberto Delgado flights.
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($163 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Stewart to Portugal 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 April 10, 2026.
Use the filters below to find and compare flights from New Windsor to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way

New WindsorPorto

SWF - OPO

SWFOPO

New Windsor Stewart

Sat 6/6

12:05 pm-8:30 pm

3 stops51h 25m

$382

New WindsorLisbon

SWF - LIS

SWFLIS

New Windsor Stewart

Wed 8/19

12:05 pm-10:10 pm

3 stops29h 05m

$415
Quickest one-way

New WindsorLisbon

SWF - LIS

SWFLIS

New Windsor Stewart

Sat 8/8

12:05 pm-10:05 pm

3 stops29h 00m

$420

New WindsorLisbon

SWF - LIS

SWFLIS

New Windsor Stewart

Sat 6/6

12:05 pm-8:40 pm

3 stops51h 35m

$446

New WindsorPorto

SWF - OPO

SWFOPO

New Windsor Stewart

Sat 8/15

12:05 pm-9:35 am

3 stops40h 30m

$469

New WindsorPonta Delgada

SWF - PDL

SWFPDL

New Windsor Stewart

Sun 8/23

1:00 pm-9:45 am

3 stops40h 45m

$492

New WindsorPorto

SWF - OPO

SWFOPO

New Windsor Stewart

Tue 7/28

11:48 am-11:10 pm

3 stops30h 22m

$493

New WindsorLisbon

SWF - LIS

SWFLIS

New Windsor Stewart

Fri 5/29

9:41 am-9:45 pm

3 stops31h 04m

$510

New WindsorLisbon

SWF - LIS

SWFLIS

New Windsor Stewart

Sun 6/14

9:38 am-6:30 am

3 stops39h 52m

$546

New WindsorPonta Delgada

SWF - PDL

SWFPDL

New Windsor Stewart

Mon 8/24

1:44 pm-9:45 am

3 stops40h 01m

$546

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 25 resultsSorted by cheapest first
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Best time to book a flight from Stewart to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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 Portugal

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

Currently, April is the cheapest month in which you can book a flight from New Windsor to Portugal (average of $375). Flying from New Windsor to Portugal in July is currently the most expensive (average of $516). 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 Portugal. 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 from for flights from New Windsor to Portugal?

    If you book a flight to Portugal from New Windsor, you will be flying from Stewart, which is the city’s only airport. New Windsor Stewart (SWF) is located 4.3 mi from the center of New Windsor.

  • What are the most popular routes from New Windsor to Portugal?

    While some choose either New Windsor Stewart - Faro or New Windsor Stewart - Lisbon Humberto Delgado, New Windsor Stewart - Ponta Delgada Nordela is the most popular route from New Windsor to Portugal.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Stewart to Portugal 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 Portugal?

    Currently, April is the cheapest month in which you can book a flight from New Windsor to Portugal (average of $375). Flying from New Windsor to Portugal in July is currently the most expensive (average of $516). 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

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