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Islip

$77+ Cheap flights from Dallas to Islip, NY (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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ISP
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Dallas to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Dallas (A78) 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 August 14, 2025.

Round-trip from

$153
(CheapOair)

One-way from

$77
(CheapOair)

Popular in

November

Cheapest in

April

Average price

$336
From Dallas to Islip Long Island
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One-way flight from Dallas to Islip Long Island
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Highest demand for flights based on searches. 17% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Dallas to Islip

Cheapest flights from Dallas to Islip
Explore the most affordable flight options available from Dallas to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:18 pmDFW - ISP
1 stop13h 22mFrontier
Fri 9/265:05 pmISP - DFW
1 stop17h 59mFrontier
Deal found 8/14$153
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:00 amDFW - ISP
1 stop22h 40mFrontier
Sat 9/65:18 pmISP - DFW
1 stop22h 30mFrontier
Deal found 8/14$155
This CheapOair deal was found by Cheapflights users on 8/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/188:00 amDFW - ISP
1 stop24h 04mFrontier
Sat 9/205:18 pmISP - DFW
1 stop22h 30mFrontier
Deal found 8/13$157
This Frontier deal was found by Cheapflights users on 8/14. 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.
Thu 8/287:30 amDFW - ISP
1 stop11h 36mFrontier
Thu 9/411:45 amISP - DFW
1 stop8h 28mFrontier
Deal found 8/14$165
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/268:00 amDFW - ISP
1 stop7h 27mFrontier
Mon 9/295:05 pmISP - DFW
1 stop17h 59mFrontier
Deal found 8/14$172
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:00 amDFW - ISP
1 stop22h 55mFrontier
Wed 10/84:58 pmISP - DFW
1 stop20h 51mFrontier
Deal found 8/14$177
This Frontier deal was found by Cheapflights users on 8/14. 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.
Fri 9/58:00 amDFW - ISP
1 stop7h 27mFrontier
Thu 9/1111:25 amISP - DFW
1 stop8h 48mFrontier
Deal found 8/14$178
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/217:54 pmDFW - ISP
1 stop12h 19mFrontier
Thu 8/286:05 amISP - DFW
1 stop13h 44mFrontier
Deal found 8/14$184
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/198:18 pmDFW - ISP
1 stop13h 37mFrontier
Mon 9/225:05 pmISP - DFW
1 stop17h 59mFrontier
Deal found 8/14$186
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/188:00 amDFW - ISP
1 stop24h 04mFrontier
Thu 9/2511:40 amISP - DFW
1 stop8h 33mFrontier
Deal found 8/14$188
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/198:18 pmDFW - ISP
1 stop13h 37mFrontier
Sun 9/2111:25 amISP - DFW
1 stop21h 24mFrontier
Deal found 8/14$191
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/188:00 amDFW - ISP
1 stop24h 04mFrontier
Sun 9/2111:25 amISP - DFW
1 stop21h 24mFrontier
Deal found 8/14$193

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas 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 August 14, 2025.
Use the filters below to find and compare flights from Dallas to Islip that are best for you.

Fly from

Dallas

Fly to

Islip

Route

Depart

Return

Price

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Wed 9/17

11:00 am-10:55 am

1 stop22h 55m

Islip Long Island

Wed 9/24

11:35 am-10:04 am

1 stop23h 29m

$153

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 11/1

8:59 pm-9:42 pm

1 stop23h 43m

Islip Long Island

Tue 11/4

6:27 pm-11:14 am

1 stop17h 47m

$153

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 9/6

11:00 am-10:50 am

1 stop22h 50m

Islip Long Island

Sat 9/13

5:05 pm-10:04 am

1 stop17h 59m

$153

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Wed 9/24

11:00 am-10:55 am

1 stop22h 55m

Islip Long Island

Sat 9/27

5:05 pm-10:04 am

1 stop17h 59m

$153

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 9/5

8:54 am-10:55 am

1 stop25h 01m

Islip Long Island

Sun 9/7

11:35 am-10:44 am

1 stop24h 09m

$153

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sun 9/14

8:18 pm-10:40 am

1 stop13h 22m

Islip Long Island

Wed 9/17

11:35 am-10:04 am

1 stop23h 29m

$153

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 9/9

11:00 am-10:40 am

1 stop22h 40m

Islip Long Island

Sat 9/13

5:05 pm-10:04 am

1 stop17h 59m

$153

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 9/13

8:18 pm-10:40 am

1 stop13h 22m

Islip Long Island

Tue 9/16

11:25 am-10:04 am

1 stop23h 39m

$153

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Wed 9/10

11:00 am-10:40 am

1 stop22h 40m

Islip Long Island

Wed 9/17

11:35 am-10:04 am

1 stop23h 29m

$153

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 10/23

7:06 pm-10:37 am

1 stop14h 31m

Islip Long Island

Mon 10/27

4:58 pm-11:14 am

1 stop19h 16m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 21 results
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Best time to book a flight from Dallas to Islip

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

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

Currently, January is the cheapest month in which you can book a flight from Dallas to Islip, New York (average of $108). Flying from Dallas to Islip, New York in November is currently the most expensive (average of $213). 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.

What is the cheapest time of day to fly from DFW to ISP?

Find hourly flight availability from Dallas to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

When flying from Dallas to Islip, New York, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 6% versus a flight in the morning.

How much does it cost to fly round-trip from Dallas to Islip, New York?

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 August 14, 2025.
Read reviews from past customers who have flown Southwest from Dallas to Islip. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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 Dallas to Islip. 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 into for flights to Islip from Dallas?

    Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly into when you book flights from Dallas to Islip. 1 airline have flights to Long Island from Dallas on a regular basis. Booking flights from Dallas to Islip Long Island should not be difficult; the airport handles an average of 0 inbound flights from Dallas per day.

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

    Our cheapest airline available from Dallas to Islip, New York is Southwest. Our recent data shows that you can find tickets from as low as $325 on this airline. You may be able to fly from Dallas to Islip, New York for 27% less than the average price by searching for this airline.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Dallas to Islip, New York (average of $108). Flying from Dallas to Islip, New York in November is currently the most expensive (average of $213). 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?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Southampton

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Alternative routes for Dallas 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 Dallas to Islip

Discover the top airline that operate flights from Dallas 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$325Average$442FlexibilityNo cancel feeOn-time63%

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