How far in advance should I book a flight from St. Louis to New Windsor?

Users have found that booking a flight from St. Louis to New Windsor at least 45 days early can save you up to 66% on average compared to booking a flight this week. If booking 45 days before your flight isn’t an option for you, users have found flights from St. Louis to New Windsor for as little as $367 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $373 for flights departing within the next 3 days.

What is the cheapest month to fly from St. Louis to New Windsor?

April is one of the best times of the year to fly to New Windsor from St. Louis. Prices for April average $309 per person but you can even find prices for as low as $89. The most expensive prices can be found in the month of November. Opting for a April flight can save you 22% on your journey compared to booking in November

What is the cheapest time of day to fly from STL to SWF?

When flying from St. Louis to New Windsor, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

$172+ Flights from St. Louis to New Windsor

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Cheap flight deals from St. Louis to Stewart

Round-trip from	$415 (Mytrip)
One-way from	$172 (Mytrip)
Popular in	November
Cheapest in	April
Average price	$305

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 ($41 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 2, 2025.

Thu 7/1710:47 amSTL - SWF

3 stops31h 19mMultiple Airlines

Mon 7/216:11 pmSWF - STL

2 stops23h 20mMultiple Airlines

Deal found 7/1

$415

Best flights from St. Louis to Stewart
Discover carefully curated flight deals from St. Louis to Stewart that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2025.

Thu 7/1710:47 amSTL - SWF

3 stops31h 19mMultiple Airlines

Mon 7/216:11 pmSWF - STL

2 stops23h 20mMultiple Airlines

Deal found 7/1

$415

Last-minute flights from St. Louis to Stewart
Discover last-minute flight deals from St. Louis to Stewart. Data last updated July 2, 2025 and is based on user searches.

Thu 7/1710:47 amSTL - SWF

3 stops31h 19mMultiple Airlines

Mon 7/216:11 pmSWF - STL

2 stops23h 20mMultiple Airlines

Deal found 7/1

$415

One-way flights from St. Louis to Stewart
Search for one-way flight options from St. Louis to Stewart. Find affordable one-way fares based on user searches. Data last updated July 2, 2025.

Thu 7/3110:47 amSTL - SWF

3 stops31h 19mMultiple Airlines

Deal found 7/1

$172

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to New Windsor that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

Thu 7/17

10:47 am-7:06 pm

3 stops31h 19m

New Windsor Stewart

Mon 7/21

6:11 pm-4:31 pm

2 stops23h 20m

$415

St. LouisNew Windsor

STL - SWF

STLSWF

Lambert-St Louis

Thu 7/31

10:47 am-7:06 pm

3 stops31h 19m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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 August is currently the most expensive (average of $222). 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

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 August is currently the most expensive (average of $222). 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.

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$172+ 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Stewart with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Stewart

Round-trip from

One-way from

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Find flight deals from St. Louis to Stewart

Cheapest flights from St. Louis to StewartExplore 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 July 2, 2025.

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 July 2, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to New Windsor that are best for you.

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.

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?

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?

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

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

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

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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 July 2, 2025.