HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho

$398+ Cheap flights from New Windsor (SWF) to Idaho

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 12/20. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — BOI
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Stewart to Idaho 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 Stewart to Idaho

One-way flights from Stewart to Idaho
Search for one-way flight options from Stewart to Idaho. Find affordable one-way fares based on user searches. Data last updated December 8, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/7. 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 12/209:45 amSWF - GEG
3 stops28h 22mMultiple Airlines
Deal found 12/7$398
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Sun 12/2111:43 amSWF - GEG
3 stops25h 04mMultiple Airlines
Deal found 12/7$636

Find flight deals from Stewart to Idaho

Keep the following information in mind while searching for Stewart to Idaho flight deals. Data was last updated December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

December

Cheapest in

October

Average price

$676
Provider with most accurate pricing for New York (NYC)-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Boise Air Term. Gowen Fld flights.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 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 Idaho 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 8, 2025.
Use the filters below to find and compare flights from New Windsor to Idaho that are best for you.

Fly from

Stewart

Fly to

Idaho

Route

Depart

Return

Price

New WindsorSpokane

SWF - GEG

SWFGEG

New Windsor Stewart

Sat 12/20

9:45 am-11:07 am

3 stops28h 22m

$398

New WindsorSpokane

SWF - GEG

SWFGEG

New Windsor Stewart

Sun 12/21

11:43 am-9:47 am

3 stops25h 04m

$636

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Best time to book a flight from Stewart to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho 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 Idaho

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

Currently, February is the cheapest month in which you can book a flight from New Windsor to Idaho (average of $134). Flying from New Windsor to Idaho in September is currently the most expensive (average of $317). 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 Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from New Windsor to Idaho?

    Located just 4.3 mi from the city center, New Windsor Stewart (SWF) is the airport most travelers will use when flying to Idaho from New Windsor.

  • What are the most popular routes from New Windsor to Idaho?

    Most travelers choose New Windsor Stewart - Idaho Falls Fanning Field, New Windsor Stewart - Spokane or New Windsor Stewart - Jackson Hole when deciding on the best route from New Windsor to Idaho.

  • Can I find deals for flights from Stewart to Idaho that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Stewart to Idaho 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 Idaho?

    Currently, February is the cheapest month in which you can book a flight from New Windsor to Idaho (average of $134). Flying from New Windsor to Idaho in September is currently the most expensive (average of $317). 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

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 Stewart to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Miami flights
John F Kennedy Intl to Fort Lauderdale flights
Newark to Fort Lauderdale flights
LaGuardia to Miami flights
Newark to Miami flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Orlando flights
Newark to West Palm Beach flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to West Palm Beach flights
Newark to Las Vegas flights
Newark to Los Angeles flights
LaGuardia to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
Newark to Orlando flights
John F Kennedy Intl to Atlanta flights
John F Kennedy Intl to San Francisco flights
LaGuardia to Orlando flights
John F Kennedy Intl to Hobby flights
LaGuardia to Tampa flights
John F Kennedy Intl to Sky Harbor Intl flights
LaGuardia to Atlanta flights
John F Kennedy Intl to Tampa flights
LaGuardia to Los Angeles flights
LaGuardia to Hobby flights
Newark to San Francisco flights
John F Kennedy Intl to New Orleans flights
LaGuardia to West Palm Beach flights
Newark to Hobby flights
LaGuardia to Las Vegas flights
Newark to Sky Harbor Intl flights
John F Kennedy Intl to O'Hare Intl flights
John F Kennedy Intl to Denver flights
Newark to Tampa flights
John F Kennedy Intl to Salt Lake City flights
Newark to New Orleans flights
John F Kennedy Intl to Seattle flights
John F Kennedy Intl to Honolulu flights
Newark to Denver flights
John F Kennedy Intl to George Bush Intcntl flights
Newark to George Bush Intcntl flights
LaGuardia to New Orleans flights
Newark to Fort Myers flights
LaGuardia to Denver flights
Newark to Atlanta flights
John F Kennedy Intl to Austin flights
Newark to Salt Lake City flights
LaGuardia to San Francisco 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.