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Islip

$80+ Cheap flights from Austin to Islip, NY (AUS - ISP)

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 11/26. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — ISP
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Find flight deals from Austin to Islip

Cheapest flights from Austin to Islip
Explore the most affordable flight options available from Austin to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/12. 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 11/206:45 amAUS - ISP
2 stops26h 52mFrontier
Sun 11/238:25 pmISP - AUS
1 stop22h 20mFrontier
Deal found 11/12$229
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 11/208:28 pmAUS - ISP
1 stop13h 09mMultiple Airlines
Sun 11/238:25 pmISP - AUS
1 stop22h 20mMultiple Airlines
Deal found 11/12$296
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 11/192:21 pmAUS - ISP
1 stop17h 46mMultiple Airlines
Sat 11/226:00 amISP - AUS
2 stops28h 21mMultiple Airlines
Deal found 11/12$315
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 11/137:49 pmAUS - ISP
1 stop13h 48mMultiple Airlines
Thu 11/2010:02 amISP - AUS
1 stop24h 32mMultiple Airlines
Deal found 11/12$362
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 12/206:00 amAUS - ISP
1 stop10h 55mMultiple Airlines
Thu 12/252:19 pmISP - AUS
2 stops32h 38mMultiple Airlines
Deal found 11/13$375
This Trip.com deal was found by Cheapflights users on 11/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:49 pmAUS - ISP
1 stop23h 53mMultiple Airlines
Tue 11/186:27 pmISP - AUS
1 stop19h 59mMultiple Airlines
Deal found 11/12$507
This Trip.com deal was found by Cheapflights users on 11/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:32 pmAUS - ISP
2 stops21h 05mFrontier
Thu 11/2010:02 amISP - AUS
2 stops24h 11mFrontier
Deal found 11/12$508
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 11/266:37 pmAUS - ISP
1 stop13h 30mFrontier
Fri 11/286:00 amISP - AUS
2 stops35h 37mFrontier
Deal found 11/11$527

Cheap flight deals from Austin to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Islip (ISP). 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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$274
(Kiwi.com)

One-way from

$80
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$831
Provider with most accurate pricing for Austin Bergstrom-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Islip Long Island flights.
Search Deals
From Austin Bergstrom to Islip Long Island
Search Deals
One-way flight from Austin Bergstrom to Islip Long Island
Search Deals
Highest demand for flights based on searches. 33% potential increase in price ($233 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Islip 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 November 13, 2025.
Use the filters below to find and compare flights from Austin to Islip that are best for you.

Fly from

Austin

Fly to

Islip

Route

Depart

Return

Price

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

Sun 1/4

6:45 am-7:40 pm

2 stops35h 55m

Islip Long Island

Tue 1/13

12:35 pm-4:04 pm

1 stop28h 29m

$274

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

Sat 12/20

6:00 am-5:55 pm

1 stop10h 55m

Islip Long Island

Thu 12/25

2:19 pm-9:57 pm

2 stops32h 38m

$375

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

Sun 1/4

1:25 pm-11:55 pm

2 stops9h 30m

Islip Long Island

Tue 1/13

6:00 am-1:15 pm

2 stops8h 15m

$497

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

Wed 11/26

6:37 pm-9:07 am

1 stop13h 30m

Islip Long Island

Fri 11/28

6:00 am-4:37 pm

2 stops35h 37m

$527

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

Sat 12/20

4:10 pm-11:55 pm

2 stops6h 45m

Islip Long Island

Thu 12/25

12:55 pm-7:00 pm

2 stops7h 05m

$604

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

Wed 11/26

1:25 pm-11:55 pm

2 stops9h 30m

Islip Long Island

Fri 11/28

5:50 am-3:05 pm

2 stops10h 15m

$697

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

Wed 11/26

1:00 pm-4:15 pm

3 stops26h 15m

Islip Long Island

Fri 11/28

7:30 am-11:55 pm

2 stops17h 25m

$1,379

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

Wed 11/26

6:37 pm-9:07 am

1 stop13h 30m

$80

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

Fri 12/12

6:08 pm-9:13 am

2 stops14h 05m

$104

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

Fri 12/12

6:00 am-9:13 am

1 stop26h 13m

$115

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 16 results
1
2

Compare providers for flights from Austin to Islip

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 Austin to Islip in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 Austin-Islip, New York flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Austin-Islip, New York flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Austin-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-Islip, New York 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 Austin-Islip, New York 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 Austin to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Austin 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 Austin to Islip

What is the cheapest month to book a flight from Austin to Islip, New York?

Currently, January is the cheapest month in which you can book a flight from Austin to Islip, New York (average of $98). Flying from Austin to Islip, New York in July is currently the most expensive (average of $167). 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 Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated November 13, 2025.
Get a feel of what it's like to fly with Southwest from Austin to Islip by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Austin to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Austin to Islip, New York?

    There are many flights that can get you from Austin to Islip, New York in 9h 30m. Fly via Southwest or Frontier to get the fastest option. The distance between Austin and Islip, New York is about 1556 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Austin to Islip, New York round-trip?

    Southwest, at $317, was found to be the cheapest airline from Austin to Islip, New York.. You may be able to fly from Austin to Islip, New York for 31% less than the average price by searching for this airline.

  • Can I find deals for flights from Austin to Islip that include hotel bookings?

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

  • How can I find direct flights from Austin to Islip?

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

  • Can I find deals for business class flights from Austin to Islip?

    Yes. Cheapflights offers flight deals from Austin to Islip 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 Austin to Islip, New York?

    Currently, January is the cheapest month in which you can book a flight from Austin to Islip, New York (average of $98). Flying from Austin to Islip, New York in July is currently the most expensive (average of $167). 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 Islip?

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Alternative routes for Austin to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Austin to Islip

Discover the top airline that operate flights from Austin to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$317Average$496FlexibilityNo cancel feeOn-time63%

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