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$135+ Cheap flights from New Windsor to St. Louis (SWF - STL)

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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — STL
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Stewart to St. Louis

Cheapest flights from Stewart to St. Louis
Explore the most affordable flight options available from Stewart to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/227:10 pmSWF - STL
2 stops15h 30mMultiple Airlines
Sun 1/411:51 amSTL - SWF
1 stop21h 56mMultiple Airlines
Deal found 12/10$514
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/228:25 pmSWF - STL
1 stop15h 31mMultiple Airlines
Wed 12/244:27 pmSTL - SWF
1 stop17h 36mMultiple Airlines
Deal found 12/10$539
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/127:30 pmSWF - STL
1 stop28h 03mMultiple Airlines
Fri 12/198:37 pmSTL - SWF
1 stop11h 18mMultiple Airlines
Deal found 12/10$569
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 - STL
1 stop11h 50mMultiple Airlines
Wed 12/314:27 pmSTL - SWF
1 stop17h 36mMultiple Airlines
Deal found 12/10$590
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/236:28 pmSWF - STL
2 stops41h 28mMultiple Airlines
Mon 12/294:27 pmSTL - SWF
1 stop17h 36mMultiple Airlines
Deal found 12/10$591
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/236:28 pmSWF - STL
2 stops41h 28mMultiple Airlines
Wed 12/314:27 pmSTL - SWF
1 stop17h 36mMultiple Airlines
Deal found 12/10$592
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/3011:43 amSWF - STL
1 stop11h 50mMultiple Airlines
Sun 1/411:51 amSTL - SWF
1 stop21h 56mMultiple Airlines
Deal found 12/9$603
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/2311:43 amSWF - STL
1 stop11h 50mMultiple Airlines
Sun 12/2810:57 amSTL - SWF
2 stops22h 50mMultiple Airlines
Deal found 12/9$648
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/236:28 pmSWF - STL
2 stops41h 28mMultiple Airlines
Tue 12/304:27 pmSTL - SWF
1 stop23h 17mMultiple Airlines
Deal found 12/10$673

Find flight deals from Stewart to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Stewart (SWF) to St. Louis (STL). 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 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$514
(Kiwi.com)

One-way from

$135
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$433
Provider with most accurate pricing for New Windsor Stewart-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for New Windsor Stewart-Lambert-St Louis flights.
Search Deals
From New Windsor Stewart to Lambert-St Louis
Search Deals
One-way flight from New Windsor Stewart to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Stewart to St. Louis 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 12, 2025.
Use the filters below to find and compare flights from New Windsor to St. Louis that are best for you.

Fly from

Stewart

Fly to

St. Louis

Route

Depart

Return

Price

New WindsorSt. Louis

SWF - STL

SWFSTL

New Windsor Stewart

Mon 12/22

7:10 pm-9:40 am

2 stops15h 30m

Lambert-St Louis

Sun 1/4

11:51 am-10:47 am

1 stop21h 56m

$514

New WindsorSt. Louis

SWF - STL

SWFSTL

New Windsor Stewart

Mon 12/22

8:25 pm-10:56 am

1 stop15h 31m

Lambert-St Louis

Wed 12/24

4:27 pm-11:03 am

1 stop17h 36m

$539

New WindsorSt. Louis

SWF - STL

SWFSTL

New Windsor Stewart

Tue 12/23

6:28 pm-10:56 am

2 stops41h 28m

Lambert-St Louis

Mon 12/29

4:27 pm-11:03 am

1 stop17h 36m

$591

New WindsorSt. Louis

SWF - STL

SWFSTL

New Windsor Stewart

Tue 12/30

11:43 am-10:33 pm

1 stop11h 50m

Lambert-St Louis

Sun 1/4

11:51 am-10:47 am

1 stop21h 56m

$603

New WindsorSt. Louis

SWF - STL

SWFSTL

New Windsor Stewart

Thu 12/25

11:43 am-10:33 pm

1 stop11h 50m

Lambert-St Louis

Wed 12/31

7:43 pm-11:03 am

2 stops14h 20m

$647

New WindsorSt. Louis

SWF - STL

SWFSTL

New Windsor Stewart

Tue 12/23

6:28 pm-10:56 am

2 stops41h 28m

Lambert-St Louis

Tue 12/30

4:27 pm-4:44 pm

1 stop23h 17m

$673

New WindsorSt. Louis

SWF - STL

SWFSTL

New Windsor Stewart

Tue 12/23

11:43 am-10:33 pm

1 stop11h 50m

Lambert-St Louis

Sun 12/28

11:51 am-10:47 am

1 stop21h 56m

$683

New WindsorSt. Louis

SWF - STL

SWFSTL

New Windsor Stewart

Tue 12/23

11:43 am-10:33 pm

1 stop11h 50m

Lambert-St Louis

Wed 12/31

4:27 pm-11:03 am

1 stop17h 36m

$696

New WindsorSt. Louis

SWF - STL

SWFSTL

New Windsor Stewart

Fri 2/20

12:11 pm-12:27 am

2 stops13h 16m

$135

New WindsorSt. Louis

SWF - STL

SWFSTL

New Windsor Stewart

Mon 1/12

12:11 pm-10:33 pm

2 stops11h 22m

$165

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 14 results
1
2

Compare providers for flights from Stewart to St. Louis

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis 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 St. Louis

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

Currently, March is the cheapest month in which you can book a flight from New Windsor to St. Louis (average of $60). Flying from New Windsor to St. Louis in December is currently the most expensive (average of $267). 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 St. Louis. 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 St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Stewart to St. Louis 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 St. Louis?

    Currently, March is the cheapest month in which you can book a flight from New Windsor to St. Louis (average of $60). Flying from New Windsor to St. Louis in December is currently the most expensive (average of $267). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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