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Stewart

$144+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SWF
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/26. 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 2/55:42 pm
STL
-
SWF
2 stops16h 49m
Multiple Airlines
Sun 2/811:48 am
SWF
-
STL
1 stop22h 33m
Multiple Airlines
Deal found 1/26$384
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 2/113:49 pm
STL
-
SWF
1 stop18h 19m
Multiple Airlines
Sun 2/1511:42 am
SWF
-
STL
2 stops20h 09m
Multiple Airlines
Deal found 1/26$547
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/148:53 pm
STL
-
SWF
1 stop13h 15m
Multiple Airlines
Thu 3/1911:48 am
SWF
-
STL
1 stop12h 31m
Multiple Airlines
Deal found 1/27$562
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/194:51 pm
STL
-
SWF
1 stop15h 01m
Multiple Airlines
Fri 3/2012:11 pm
SWF
-
STL
2 stops12h 08m
Multiple Airlines
Deal found 1/27$963

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$547
(Kiwi.com)

One-way from

$144
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$339
Provider with most accurate pricing for Lambert-St Louis-New Windsor Stewart flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-New Windsor Stewart flights.
Search Deals
From Lambert-St Louis to New Windsor Stewart
Search Deals
One-way flight from Lambert-St Louis to New Windsor Stewart
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

Wed 2/11

3:49 pm-11:08 am

1 stop18h 19m

New Windsor Stewart

Sun 2/15

11:42 am-6:51 am

2 stops20h 09m

$547

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

Sat 3/14

8:53 pm-11:08 am

1 stop13h 15m

New Windsor Stewart

Thu 3/19

11:48 am-11:19 pm

1 stop12h 31m

$562

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

Thu 3/19

4:51 pm-8:52 am

1 stop15h 01m

New Windsor Stewart

Fri 3/20

12:11 pm-11:19 pm

2 stops12h 08m

$963

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

Fri 2/13

8:20 pm-10:52 am

2 stops37h 32m

$144

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

Mon 5/4

8:13 pm-11:25 am

3 stops38h 12m

$164

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

Sun 2/15

3:49 pm-10:14 am

1 stop17h 25m

$164

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

Wed 3/11

11:32 am-9:19 am

2 stops20h 47m

$173

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

Wed 5/13

8:13 pm-10:50 am

2 stops37h 37m

$175

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

Wed 2/18

3:49 pm-11:08 am

1 stop18h 19m

$175

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

Tue 3/10

4:51 pm-9:19 am

2 stops39h 28m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 13 results
1
2

Compare providers for flights from St. Louis to Stewart

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 St. Louis to Stewart in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 St. Louis-New Windsor flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-New Windsor flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-New Windsor flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-New Windsor 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 St. Louis-New Windsor 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 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, April is the cheapest month in which you can book a flight from St. Louis to New Windsor (average of $89). Flying from St. Louis to New Windsor in May is currently the most expensive (average of $199). 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, April is the cheapest month in which you can book a flight from St. Louis to New Windsor (average of $89). Flying from St. Louis to New Windsor in May is currently the most expensive (average of $199). 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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