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Islip

$90+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — ISP
feb. 5 — feb. 121
jue. 2/5
jue. 2/12
1 adult, Economy
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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 enero 6, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$215
(Frontier)

One-way from

$90
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$271
Provider with most accurate pricing for Austin Bergstrom-Islip Long Island flight deals.
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Provider most trusted by Cheapflights users for Austin Bergstrom-Islip Long Island flights.
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From Austin Bergstrom to Islip Long Island
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One-way flight from Austin Bergstrom to Islip Long Island
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Highest demand for flights based on searches. 8% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 enero 6, 2026.

This Frontier deal was found by Cheapflights users on 1/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/2911:16 amAUS - ISP
1 stop6h 32mFrontier
dom. 2/19:25 amISP - AUS
1 stop10h 06mFrontier
Deal found 1/4$215
This Trip.com deal was found by Cheapflights users on 1/4. 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.
mar. 1/207:25 amAUS - ISP
1 stop27h 08mMultiple Airlines
sáb. 1/2412:25 pmISP - AUS
1 stop10h 10mMultiple Airlines
Deal found 1/4$240
This KAYAK deal was found by Cheapflights users on 1/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 1/256:00 amAUS - ISP
1 stop28h 33mJetBlue
mié. 1/2812:25 pmISP - AUS
1 stop10h 52mJetBlue
Deal found 1/6$462
This Southwest deal was found by Cheapflights users on 1/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/155:05 amAUS - ISP
1 stop5h 45mSouthwest
dom. 5/176:05 amISP - AUS
1 stop6h 00mSouthwest
Deal found 1/6$467
This Southwest deal was found by Cheapflights users on 1/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 1/255:25 amAUS - ISP
1 stop5h 30mSouthwest
mié. 1/2812:40 pmISP - AUS
1 stop9h 20mSouthwest
Deal found 1/6$560
This JetBlue deal was found by Cheapflights users on 1/6. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/143:38 pmAUS - ISP
1 stop7h 17mJetBlue
vie. 3/208:32 amISP - AUS
1 stop7h 11mJetBlue
Deal found 1/6$883

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 enero 6, 2026.
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

jue. 1/29

11:16 am-6:48 pm

1 stop6h 32m

Islip Long Island

dom. 2/1

9:25 am-6:31 pm

1 stop10h 06m

$215

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

mar. 1/20

7:25 am-11:33 am

1 stop27h 08m

Islip Long Island

sáb. 1/24

12:25 pm-9:35 pm

1 stop10h 10m

$240

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

dom. 1/25

6:00 am-11:33 am

1 stop28h 33m

Islip Long Island

mié. 1/28

12:25 pm-10:17 pm

1 stop10h 52m

$462

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

vie. 5/15

5:05 am-11:50 am

1 stop5h 45m

Islip Long Island

dom. 5/17

6:05 am-11:05 am

1 stop6h 00m

$467

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

dom. 1/25

5:25 am-11:55 am

1 stop5h 30m

Islip Long Island

mié. 1/28

12:40 pm-9:00 pm

1 stop9h 20m

$560

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

sáb. 3/14

3:38 pm-11:55 pm

1 stop7h 17m

Islip Long Island

vie. 3/20

8:32 am-2:43 pm

1 stop7h 11m

$883

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

mié. 2/4

4:59 pm-6:48 pm

1 stop24h 49m

$90

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

jue. 2/5

11:16 am-6:48 pm

1 stop6h 32m

$120

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

dom. 2/22

10:46 am-7:38 am

1 stop19h 52m

$131

AustinIslip

AUS - ISP

AUSISP

Austin Bergstrom

dom. 3/1

4:59 pm-2:39 pm

1 stop20h 40m

$150

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 13 results
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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 January.
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 $80). 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 enero 6, 2026.
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
4,248 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

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 6h 32m. Fly via Frontier to get the fastest option. The distance between Austin and Islip, New York is about 1556 mi.

  • 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..

  • 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 $80). 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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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 enero 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$317Average$496FlexibilityNo cancel feeOn-time63%

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