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Stewart

$112+ Cheap flights from St. Louis to New Windsor (STL - 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SWF
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheap flight deals from St. Louis to Stewart

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 septiembre 17, 2025.

Round-trip from

$251
(Kiwi.com)

One-way from

$112
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$302
From Lambert-St Louis to New Windsor Stewart
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One-way flight from Lambert-St Louis to New Windsor Stewart
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Highest demand for flights based on searches. 12% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Stewart

Cheapest flights from St. Louis to Stewart
Explore the most affordable flight options available from St. Louis to Stewart. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/17. 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.
jue. 10/210:35 amSTL - SWF
1 stop23h 46mMultiple Airlines
lun. 10/612:24 pmSWF - STL
2 stops9h 13mMultiple Airlines
Deal found 9/17$364
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
jue. 10/910:57 amSTL - SWF
1 stop22h 54mMultiple Airlines
lun. 10/1312:24 pmSWF - STL
2 stops8h 57mMultiple Airlines
Deal found 9/16$530
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
dom. 11/2312:20 pmSTL - SWF
1 stop20h 47mMultiple Airlines
dom. 11/308:41 pmSWF - STL
1 stop28h 16mMultiple Airlines
Deal found 9/16$604
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
mié. 11/264:13 pmSTL - SWF
1 stop17h 50mMultiple Airlines
dom. 11/3011:43 amSWF - STL
1 stop13h 14mMultiple Airlines
Deal found 9/16$614
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
sáb. 11/224:13 pmSTL - SWF
1 stop17h 50mMultiple Airlines
lun. 11/2410:57 amSWF - STL
1 stop25h 04mMultiple Airlines
Deal found 9/16$624
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
jue. 12/183:40 pmSTL - SWF
2 stops19h 04mMultiple Airlines
sáb. 12/209:45 amSWF - STL
1 stop14h 01mMultiple Airlines
Deal found 9/16$664
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
sáb. 12/203:40 pmSTL - SWF
1 stop18h 23mMultiple Airlines
dom. 1/46:28 pmSWF - STL
2 stops53h 05mMultiple Airlines
Deal found 9/16$748
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
sáb. 11/224:13 pmSTL - SWF
1 stop17h 50mMultiple Airlines
dom. 11/308:41 pmSWF - STL
1 stop28h 16mMultiple Airlines
Deal found 9/16$801
This Kiwi.com deal was found by Cheapflights users on 9/17. 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.
sáb. 12/203:40 pmSTL - SWF
1 stop18h 23mMultiple Airlines
mar. 12/2311:43 amSWF - STL
1 stop12h 03mMultiple Airlines
Deal found 9/17$864

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis 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 septiembre 17, 2025.
Use the filters below to find and compare flights from St. Louis to New Windsor that are best for you.

Fly from

St. Louis

Fly to

Stewart

Route

Depart

Return

Price

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

jue. 12/4

12:20 pm-11:37 am

1 stop22h 17m

New Windsor Stewart

lun. 12/8

7:30 pm-10:46 pm

1 stop28h 16m

$251

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

dom. 12/7

12:20 pm-11:37 am

1 stop22h 17m

New Windsor Stewart

jue. 12/18

11:43 am-10:46 pm

1 stop12h 03m

$358

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

jue. 10/2

10:35 am-11:21 am

1 stop23h 46m

New Windsor Stewart

lun. 10/6

12:24 pm-8:37 pm

2 stops9h 13m

$364

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

jue. 10/9

10:57 am-10:51 am

1 stop22h 54m

New Windsor Stewart

lun. 10/13

12:24 pm-8:21 pm

2 stops8h 57m

$530

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

dom. 11/23

12:20 pm-10:07 am

1 stop20h 47m

New Windsor Stewart

dom. 11/30

8:41 pm-11:57 pm

1 stop28h 16m

$604

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

mar. 11/25

12:20 pm-11:27 am

1 stop22h 07m

New Windsor Stewart

dom. 11/30

8:41 pm-11:57 pm

1 stop28h 16m

$611

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

mié. 11/26

4:13 pm-11:03 am

1 stop17h 50m

New Windsor Stewart

dom. 11/30

11:43 am-11:57 pm

1 stop13h 14m

$614

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

sáb. 11/22

4:13 pm-11:03 am

1 stop17h 50m

New Windsor Stewart

lun. 11/24

10:57 am-11:01 am

1 stop25h 04m

$624

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

vie. 11/28

4:13 pm-6:12 pm

2 stops24h 59m

New Windsor Stewart

vie. 12/5

12:27 pm-1:53 pm

1 stop26h 26m

$714

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

jue. 10/23

10:57 am-10:41 am

1 stop22h 44m

$112

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 17 results
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Best time to book a flight from St. Louis to Stewart

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

What is the cheapest month to book a flight from St. Louis to New Windsor?

Currently, October is the cheapest month in which you can book a flight from St. Louis to New Windsor (average of $109). Flying from St. Louis to New Windsor in December is currently the most expensive (average of $202). 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 St. Louis 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 St. Louis to Stewart that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Stewart?

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

  • Can I find deals for business class flights from St. Louis to Stewart?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to New Windsor?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to New Windsor (average of $109). Flying from St. Louis to New Windsor in December is currently the most expensive (average of $202). 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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