HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Stewart

$140+ Cheap flights from Louisville to New Windsor (SDF - 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SWF
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to Stewart with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Louisville to Stewart

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) 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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$252
(Mytrip)

One-way from

$140
(Mytrip)

Popular in

December

Cheapest in

August

Average price

$268
Provider with most accurate pricing for Louisville Intl-New Windsor Stewart flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-New Windsor Stewart flights.
Search Deals
From Louisville Intl to New Windsor Stewart
Search Deals
One-way flight from Louisville Intl to New Windsor Stewart
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Louisville to Stewart

Cheapest flights from Louisville to Stewart
Explore the most affordable flight options available from Louisville to Stewart. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This Mytrip deal was found by Cheapflights users on 4/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/811:34 amSDF - SWF
1 stop22h 57mMultiple Airlines
Wed 6/116:35 pmSWF - SDF
1 stop17h 38mMultiple Airlines
Deal found 4/28$252
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/119:18 pmSDF - SWF
1 stop22h 31mAllegiant Air
Sat 5/1711:03 amSWF - SDF
1 stop21h 16mAllegiant Air
Deal found 4/29$299

Cheapflights Fare Finder

Customize your flight search to find flights from Louisville 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 April 30, 2025.
Use the filters below to find and compare flights from Louisville to New Windsor that are best for you.

Fly from

Louisville

Fly to

Stewart

Route

Depart

Return

Price

LouisvilleNew Windsor

SDF - SWF

SDFSWF

Louisville Intl

Sun 6/8

11:34 am-10:31 am

1 stop22h 57m

New Windsor Stewart

Wed 6/11

6:35 pm-12:13 pm

1 stop17h 38m

$252

LouisvilleNew Windsor

SDF - SWF

SDFSWF

Louisville Intl

Sun 5/11

9:18 pm-7:49 pm

1 stop22h 31m

New Windsor Stewart

Sat 5/17

11:03 am-8:19 am

1 stop21h 16m

$299

LouisvilleNew Windsor

SDF - SWF

SDFSWF

Louisville Intl

Wed 5/21

2:07 pm-10:33 am

1 stop20h 26m

$140

LouisvilleNew Windsor

SDF - SWF

SDFSWF

Louisville Intl

Sun 5/11

9:18 pm-7:49 pm

1 stop22h 31m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Compare providers for flights from Louisville 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 Louisville to Stewart in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 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 Louisville-New Windsor flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-New Windsor flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-New Windsor flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-New Windsor flights, Cheapflights users trust Expedia the most. Expedia 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 Louisville-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 Louisville to Stewart

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

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

Currently, October is the cheapest month in which you can book a flight from Louisville to New Windsor (average of $109). Flying from Louisville to New Windsor in August is currently the most expensive (average of $223). 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.

Reviews of airlines servicing Stewart

Get insights into the airlines that provide service to Stewart. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Stewart. Reviews last updated April 30, 2025.
Allegiant Air
7.3
Good
734 reviews

Boarding

7.6

Comfort

6.8

Food

5.9

Entertainment

5.5

Crew

8.1

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Joellen,Aug 2024

LAS - GEG

Boarding was a hassle. I’ve had the same guy before. Never enjoy seeing him.
Allegiant Air
7.3
Good
734 reviews
Allegiant Air
7.3
Good
734 reviews

Boarding

7.6

Comfort

6.8

Food

5.9

Entertainment

5.5

Crew

8.1

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Joellen,Aug 2024

LAS - GEG

Boarding was a hassle. I’ve had the same guy before. Never enjoy seeing him.

Related info for your journey

Find useful and relevant information for your journey from Louisville 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 Louisville to Stewart that include hotel bookings?

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

  • How can I find direct flights from Louisville to Stewart?

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

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

    Yes. Cheapflights offers flight deals from Louisville 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 Louisville to New Windsor?

    Currently, October is the cheapest month in which you can book a flight from Louisville to New Windsor (average of $109). Flying from Louisville to New Windsor in August is currently the most expensive (average of $223). 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 Louisville?

Book flights to Louisville if you plan to visit one of these locations
Kingston

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Louisville to Stewart

See prices for flight routes from nearby airports that may be better suited for you.
Cincinnati to John F Kennedy Intl flights
Nashville to John F Kennedy Intl flights
Nashville to Newark flights
Nashville to LaGuardia flights
Cincinnati to Newark flights
Cincinnati to LaGuardia flights
Louisville to LaGuardia flights
Louisville to Newark flights
Knoxville to LaGuardia flights
Knoxville to John F Kennedy Intl flights
Louisville to John F Kennedy Intl flights
Lexington to LaGuardia flights
Lexington to Newark flights
Lexington to John F Kennedy Intl flights
Nashville to Buffalo flights
Knoxville to Newark flights
Cincinnati to Stewart flights
Cincinnati to Islip flights
Nashville to Albany flights
Nashville to White Plains flights
Cincinnati to Albany flights
Nashville to Rochester flights
Knoxville to Buffalo flights
Louisville to Albany flights
Knoxville to White Plains flights
Lexington to Albany flights
Nashville to Syracuse flights
Cincinnati to Rochester flights
Cincinnati to Buffalo flights
Cincinnati to White Plains flights
Evansville to John F Kennedy Intl flights
Knoxville to Albany flights
Cincinnati to Syracuse flights
Evansville to Newark flights
Knoxville to Rochester flights
Evansville to LaGuardia flights
Blountville to John F Kennedy Intl flights
Nashville to Stewart flights
Knoxville to Syracuse flights
Blountville to Syracuse flights
Lexington to Buffalo flights
Louisville to Buffalo flights
Knoxville to Stewart flights
Blountville to Newark flights
Louisville to White Plains flights
Blountville to LaGuardia flights
Lexington to Rochester flights
Huntington to Newark flights
Blountville to Albany flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.