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$125+ Cheap flights from New Windsor to San Antonio (SWF - SAT)

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — SAT
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Stewart to San Antonio

Cheapest flights from Stewart to San Antonio
Explore the most affordable flight options available from Stewart to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/2912:52 pmSWF - SAT
1 stop23h 58mMultiple Airlines
Wed 12/317:11 pmSAT - SWF
1 stop14h 52mMultiple Airlines
Deal found 12/17$702
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/2511:43 amSWF - SAT
2 stops12h 43mMultiple Airlines
Mon 12/297:11 pmSAT - SWF
1 stop14h 52mMultiple Airlines
Deal found 12/17$779

Find flight deals from Stewart to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Stewart (SWF) to San Antonio (SAT). 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 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$534
(Kiwi.com)

One-way from

$125
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$537
Provider with most accurate pricing for New Windsor Stewart-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for New Windsor Stewart-San Antonio flights.
Search Deals
From New Windsor Stewart to San Antonio
Search Deals
One-way flight from New Windsor Stewart to San Antonio
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Stewart to San Antonio 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 18, 2025.
Use the filters below to find and compare flights from New Windsor to San Antonio that are best for you.

Fly from

Stewart

Fly to

San Antonio

Route

Depart

Return

Price

New WindsorSan Antonio

SWF - SAT

SWFSAT

New Windsor Stewart

Fri 2/13

11:04 am-11:59 pm

1 stop13h 55m

San Antonio

Sat 2/21

10:26 am-11:02 am

1 stop23h 36m

$534

New WindsorSan Antonio

SWF - SAT

SWFSAT

New Windsor Stewart

Sun 2/15

11:48 am-7:29 pm

1 stop8h 41m

San Antonio

Wed 2/18

5:12 pm-11:08 am

2 stops16h 56m

$583

New WindsorSan Antonio

SWF - SAT

SWFSAT

New Windsor Stewart

Mon 3/2

12:11 pm-11:59 pm

2 stops12h 48m

San Antonio

Sat 3/7

8:53 pm-10:08 am

1 stop12h 15m

$701

New WindsorSan Antonio

SWF - SAT

SWFSAT

New Windsor Stewart

Mon 12/29

12:52 pm-11:50 am

1 stop23h 58m

San Antonio

Wed 12/31

7:11 pm-11:03 am

1 stop14h 52m

$702

New WindsorSan Antonio

SWF - SAT

SWFSAT

New Windsor Stewart

Sun 3/1

11:52 am-9:30 am

1 stop22h 38m

$125

New WindsorSan Antonio

SWF - SAT

SWFSAT

New Windsor Stewart

Thu 1/22

12:13 pm-11:52 pm

1 stop12h 39m

$133

New WindsorSan Antonio

SWF - SAT

SWFSAT

New Windsor Stewart

Sun 3/22

10:29 am-9:22 am

1 stop23h 53m

$148

New WindsorSan Antonio

SWF - SAT

SWFSAT

New Windsor Stewart

Sun 1/18

12:13 pm-11:52 pm

1 stop12h 39m

$161

New WindsorSan Antonio

SWF - SAT

SWFSAT

New Windsor Stewart

Mon 1/19

12:11 pm-11:52 pm

2 stops12h 41m

$165

New WindsorSan Antonio

SWF - SAT

SWFSAT

New Windsor Stewart

Mon 1/5

11:37 am-11:50 am

2 stops25h 13m

$180

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 12 results
1
2

Compare providers for flights from Stewart to San Antonio

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 Stewart to San Antonio in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 New Windsor-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on New Windsor-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from New Windsor-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on New Windsor-San Antonio 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 New Windsor-San Antonio 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 San Antonio

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

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

Currently, December is the cheapest month in which you can book a flight from New Windsor to San Antonio (average of $86). Flying from New Windsor to San Antonio in September is currently the most expensive (average of $163). 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 San Antonio. 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 San Antonio that include hotel bookings?

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

  • How can I find direct flights from Stewart to San Antonio?

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

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

    Yes. Cheapflights offers flight deals from Stewart to San Antonio 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 San Antonio?

    Currently, December is the cheapest month in which you can book a flight from New Windsor to San Antonio (average of $86). Flying from New Windsor to San Antonio in September is currently the most expensive (average of $163). 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 San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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