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Islip

$105+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ISP
Jun 5 — Jun 121
Fri 6/5
Fri 6/12
1 adult, Economy
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Cheap 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 May 6, 2026.

This Frontier deal was found by Cheapflights users on 5/3. 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 5/2810:00 pm
DFW
-
ISP
1 stop11h 05m
Frontier
Wed 6/107:50 pm
ISP
-
DFW
1 stop12h 16m
Frontier
Deal found 5/3$210
This Frontier deal was found by Cheapflights users on 5/1. 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.
Wed 6/2412:38 pm
DFW
-
ISP
1 stop7h 19m
Frontier
Wed 7/19:52 pm
ISP
-
DFW
1 stop10h 47m
Frontier
Deal found 5/1$224
This CheapOair deal was found by Cheapflights users on 5/6. 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 7/78:11 pm
DFW
-
ISP
1 stop12h 47m
Frontier
Fri 7/107:50 pm
ISP
-
DFW
1 stop17h 33m
Frontier
Deal found 5/6$230
This CheapOair deal was found by Cheapflights users on 5/1. 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 5/97:58 pm
DFW
-
ISP
1 stop13h 29m
Frontier
Sun 5/1711:12 am
ISP
-
DFW
1 stop21h 38m
Frontier
Deal found 5/1$235
This Frontier deal was found by Cheapflights users on 5/1. 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 5/1510:00 pm
DFW
-
ISP
1 stop11h 05m
Frontier
Thu 5/2111:12 am
ISP
-
DFW
1 stop8h 26m
Frontier
Deal found 5/1$240
This Frontier deal was found by Cheapflights users on 5/1. 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 6/2511:39 am
DFW
-
ISP
1 stop8h 18m
Frontier
Wed 7/19:52 pm
ISP
-
DFW
1 stop10h 47m
Frontier
Deal found 5/1$244
This Frontier deal was found by Cheapflights users on 5/5. 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.
Sat 6/279:10 am
DFW
-
ISP
1 stop8h 55m
Frontier
Wed 7/19:52 pm
ISP
-
DFW
1 stop10h 47m
Frontier
Deal found 5/5$245
This CheapOair deal was found by Cheapflights users on 5/5. 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 5/2810:00 pm
DFW
-
ISP
1 stop11h 05m
Frontier
Tue 6/26:02 pm
ISP
-
DFW
1 stop14h 48m
Frontier
Deal found 5/5$250
This Frontier deal was found by Cheapflights users on 5/1. 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.
Sun 5/109:38 pm
DFW
-
ISP
1 stop11h 27m
Frontier
Sat 5/2311:00 am
ISP
-
DFW
1 stop8h 01m
Frontier
Deal found 5/1$255
This CheapOair deal was found by Cheapflights users on 5/2. 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 5/97:58 pm
DFW
-
ISP
1 stop13h 29m
Frontier
Mon 5/116:59 pm
ISP
-
DFW
1 stop21h 50m
Frontier
Deal found 5/2$260
This Frontier deal was found by Cheapflights users on 5/1. 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 5/810:00 pm
DFW
-
ISP
1 stop11h 05m
Frontier
Sat 5/1611:00 am
ISP
-
DFW
1 stop6h 52m
Frontier
Deal found 5/1$262
This CheapOair deal was found by Cheapflights users on 5/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/115:32 pm
DFW
-
ISP
1 stop15h 31m
Frontier
Wed 7/157:50 pm
ISP
-
DFW
1 stop17h 33m
Frontier
Deal found 5/4$264

Find 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 May 6, 2026.

Round-trip from

$210
(Frontier)

One-way from

$105
(Frontier)

Popular in

November

Cheapest in

August

Average price

$556
From Dallas to Islip Long Island
Search Deals
One-way flight from Dallas to Islip Long Island
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($121 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 6, 2026.
Use the filters below to find and compare flights from Dallas to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Wed 6/10

8:34 am-8:57 pm

1 stop11h 23m

Islip Long Island

Sun 6/14

9:52 pm-7:39 am

1 stop10h 47m

$230

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sun 6/7

10:00 pm-10:05 am

1 stop11h 05m

Islip Long Island

Sun 6/14

9:52 pm-7:39 am

1 stop10h 47m

$230

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 8/4

10:53 am-9:58 am

1 stop22h 05m

Islip Long Island

Sat 8/8

7:50 pm-12:23 pm

1 stop17h 33m

$244

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 6/4

10:00 pm-10:05 am

1 stop11h 05m

Islip Long Island

Mon 6/8

11:00 am-8:19 am

1 stop22h 19m

$250

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 6/20

9:10 am-7:05 pm

1 stop8h 55m

Islip Long Island

Mon 6/22

9:52 pm-9:48 am

1 stop12h 56m

$250
Quickest round-trip

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Wed 6/17

12:38 pm-8:57 pm

1 stop7h 19m

Islip Long Island

Mon 6/22

9:52 pm-9:48 am

1 stop12h 56m

$270

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 7/30

11:40 am-9:58 am

1 stop21h 18m

Islip Long Island

Sun 8/2

10:48 am-7:03 pm

1 stop9h 15m

$290

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sun 5/17

11:08 am-10:05 am

1 stop21h 57m

Islip Long Island

Tue 5/19

5:38 pm-7:50 am

1 stop15h 12m

$347

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Wed 5/27

7:43 pm-10:05 am

1 stop13h 22m

Islip Long Island

Sun 5/31

11:00 am-10:03 am

1 stop24h 03m

$355

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 6/5

10:00 pm-10:15 am

1 stop11h 15m

Islip Long Island

Sun 6/7

11:00 am-7:50 am

1 stop21h 50m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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

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 May 6, 2026.
Read reviews from past customers who have flown Southwest and Frontier 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
7.9
Good
4,305 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Southwest
7.9
Good
4,305 reviews
Southwest
7.9
Good
4,305 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Frontier
5.6
Fair
2,964 reviews
Southwest
7.9
Good
4,305 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

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. 2 airlines 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 $230, Frontier can have you in Islip, New York from Dallas in 11h 23m. Airlines will cover a distance of 1425 mi.

  • What are the cheapest airlines flying from Dallas to Islip, New York round-trip?

    Our cheapest airline available from Dallas to Islip, New York is Frontier. Our recent data shows that you can find tickets from as low as $148 on this airline. An additional option worth looking into is Southwest, starting at $218. You may be able to fly from Dallas to Islip, New York for 62% less than the average price by searching for these airlines.

  • 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.

See more FAQs

Traveling to a place near Islip?

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Alternative routes for Dallas to Islip

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Top 2 airlines flying from Dallas to Islip

Discover the top 2 airlines 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 May 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$148Average$241FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$218Average$420FlexibilityNo cancel feeOn-time63%

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