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Islip

$71+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ISP
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
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 January 8, 2026.

Round-trip from

$137
(CheapOair)

One-way from

$71
(CheapOair)

Popular in

November

Cheapest in

January

Average price

$284
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. 21% potential increase in price ($112 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($33 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 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 January 8, 2026.

This CheapOair deal was found by Cheapflights users on 1/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/242:28 pmDFW - ISP
1 stop17h 12mFrontier
Sat 2/288:23 pmISP - DFW
1 stop15h 00mFrontier
Deal found 1/7$137
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Thu 1/2212:36 pmDFW - ISP
1 stop23h 45mMultiple Airlines
Mon 1/267:43 pmISP - DFW
1 stop22h 58mMultiple Airlines
Deal found 1/7$169
This CheapOair deal was found by Cheapflights users on 1/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:57 pmDFW - ISP
1 stop17h 42mFrontier
Wed 3/49:33 amISP - DFW
1 stop25h 50mFrontier
Deal found 1/7$170
This CheapOair deal was found by Cheapflights users on 1/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/242:28 pmDFW - ISP
1 stop17h 12mFrontier
Fri 2/275:07 pmISP - DFW
1 stop25h 40mFrontier
Deal found 1/7$178
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/242:28 pmDFW - ISP
1 stop17h 12mFrontier
Mon 1/267:43 pmISP - DFW
1 stop22h 58mFrontier
Deal found 1/6$181
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/711:30 amDFW - ISP
1 stop20h 10mFrontier
Sun 2/87:53 pmISP - DFW
1 stop28h 24mFrontier
Deal found 1/6$190
This CheapOair deal was found by Cheapflights users on 1/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/319:00 pmDFW - ISP
1 stop21h 11mFrontier
Sun 4/128:19 pmISP - DFW
1 stop13h 46mFrontier
Deal found 1/7$201
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/109:00 amDFW - ISP
1 stop27h 13mFrontier
Wed 2/182:03 pmISP - DFW
1 stop21h 20mFrontier
Deal found 1/6$206
This CheapOair deal was found by Cheapflights users on 1/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/58:12 pmDFW - ISP
1 stop23h 35mFrontier
Sun 2/89:25 amISP - DFW
1 stop8h 02mFrontier
Deal found 1/7$209
This CheapOair deal was found by Cheapflights users on 1/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/61:23 pmDFW - ISP
1 stop6h 24mFrontier
Sun 2/89:25 amISP - DFW
1 stop8h 02mFrontier
Deal found 1/7$211

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 January 8, 2026.
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

Thu 1/22

12:36 pm-1:21 pm

1 stop23h 45m

Islip Long Island

Mon 1/26

7:43 pm-5:41 pm

1 stop22h 58m

$169

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 1/24

2:28 pm-8:40 am

1 stop17h 12m

Islip Long Island

Fri 2/27

5:07 pm-5:47 pm

1 stop25h 40m

$178

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 1/29

8:12 pm-8:47 pm

1 stop23h 35m

Islip Long Island

Sun 2/1

9:25 am-4:17 pm

1 stop7h 52m

$178

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 1/30

1:23 pm-8:47 pm

1 stop6h 24m

Islip Long Island

Mon 2/2

7:43 pm-5:41 pm

1 stop22h 58m

$178

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 3/31

9:00 pm-7:11 pm

1 stop21h 11m

Islip Long Island

Sun 4/12

8:19 pm-9:05 am

1 stop13h 46m

$201

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 2/6

1:23 pm-8:47 pm

1 stop6h 24m

Islip Long Island

Sun 2/8

9:25 am-4:27 pm

1 stop8h 02m

$211

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 2/14

5:02 pm-7:06 pm

1 stop25h 04m

Islip Long Island

Wed 2/18

2:03 pm-6:45 pm

1 stop29h 42m

$214

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 2/5

8:12 pm-8:47 pm

1 stop23h 35m

Islip Long Island

Sun 2/8

7:53 pm-11:17 pm

1 stop28h 24m

$216

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 3/26

9:00 pm-12:47 pm

1 stop14h 47m

Islip Long Island

Mon 3/30

10:43 am-9:37 pm

1 stop11h 54m

$221

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 1/30

1:23 pm-8:47 pm

1 stop6h 24m

Islip Long Island

Sun 2/1

9:25 am-4:17 pm

1 stop7h 52m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 20 results
1
2

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, November is the cheapest month in which you can book a flight from Dallas to Islip, New York (average of $67). Flying from Dallas to Islip, New York in August is currently the most expensive (average of $104). 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 January 8, 2026.
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
4,250 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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.

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

    For as low as $178, Frontier can have you in Islip, New York from Dallas in 17h 12m. Airlines will cover a distance of 1425 mi.

  • 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 $290 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, November is the cheapest month in which you can book a flight from Dallas to Islip, New York (average of $67). Flying from Dallas to Islip, New York in August is currently the most expensive (average of $104). 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 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$290Average$423FlexibilityNo cancel feeOn-time63%

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