HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$69+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ISP
Dec 21 — Dec 281
Sun 12/21
Sun 12/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dallas to Islip with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 November 21, 2025.

This CheapOair deal was found by Cheapflights users on 11/18. 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 12/310:15 amDFW - ISP
1 stop21h 58mFrontier
Wed 12/106:00 amISP - DFW
1 stop26h 46mFrontier
Deal found 11/18$138
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/79:00 pmDFW - ISP
1 stop11h 13mFrontier
Wed 12/106:00 amISP - DFW
1 stop26h 46mFrontier
Deal found 11/19$142
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/310:15 amDFW - ISP
1 stop11h 29mFrontier
Thu 12/410:19 amISP - DFW
1 stop22h 42mFrontier
Deal found 11/19$146
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/1210:15 amDFW - ISP
1 stop8h 19mFrontier
Mon 12/1510:19 amISP - DFW
1 stop22h 56mFrontier
Deal found 11/19$158
This Frontier deal was found by Cheapflights users on 11/19. 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 12/310:15 amDFW - ISP
1 stop11h 29mFrontier
Sat 12/610:19 amISP - DFW
1 stop11h 52mFrontier
Deal found 11/19$170
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/51:10 pmDFW - ISP
1 stop9h 49mFrontier
Mon 12/810:19 amISP - DFW
1 stop22h 56mFrontier
Deal found 11/19$178
This CheapOair deal was found by Cheapflights users on 11/20. 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.
Mon 12/812:21 pmDFW - ISP
1 stop10h 38mFrontier
Thu 12/111:15 pmISP - DFW
1 stop7h 35mFrontier
Deal found 11/20$182
This CheapOair deal was found by Cheapflights users on 11/18. 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 12/1710:15 amDFW - ISP
1 stop24h 10mFrontier
Sun 1/118:40 pmISP - DFW
1 stop16h 44mFrontier
Deal found 11/18$184
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/119:00 pmDFW - ISP
1 stop21h 34mFrontier
Sat 12/1310:19 amISP - DFW
1 stop11h 52mFrontier
Deal found 11/19$190
This CheapOair deal was found by Cheapflights users on 11/21. 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 12/61:00 pmDFW - ISP
1 stop21h 11mFrontier
Tue 12/98:29 pmISP - DFW
1 stop12h 46mFrontier
Deal found 11/21$203
This CheapOair deal was found by Cheapflights users on 11/19. 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.
Mon 12/1512:21 pmDFW - ISP
1 stop10h 38mFrontier
Tue 12/168:29 pmISP - DFW
1 stop12h 46mFrontier
Deal found 11/19$204
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 12/49:00 pmDFW - ISP
1 stop21h 34mMultiple Airlines
Sun 12/711:15 amISP - DFW
1 stop21h 49mMultiple Airlines
Deal found 11/19$211

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 November 21, 2025.

Round-trip from

$134
(CheapOair)

One-way from

$69
(CheapOair)

Popular in

December

Cheapest in

April

Average price

$569
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. 25% potential increase in price ($141 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($26 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 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 November 21, 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

Sat 1/10

11:32 am-7:08 pm

1 stop6h 36m

Islip Long Island

Fri 1/23

8:55 pm-6:38 pm

1 stop22h 43m

$134

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Wed 1/7

2:40 pm-7:45 pm

1 stop28h 05m

Islip Long Island

Sat 1/10

7:56 pm-12:24 pm

1 stop17h 28m

$138

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sun 12/7

9:00 pm-9:13 am

1 stop11h 13m

Islip Long Island

Wed 12/10

6:00 am-7:46 am

1 stop26h 46m

$142

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Mon 12/8

9:12 pm-7:34 pm

1 stop21h 22m

Islip Long Island

Thu 12/11

10:19 am-8:01 am

1 stop22h 42m

$146

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sun 12/7

9:00 pm-9:13 am

1 stop11h 13m

Islip Long Island

Tue 12/9

8:29 pm-8:15 am

1 stop12h 46m

$146

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 12/4

9:00 pm-7:34 pm

1 stop21h 34m

Islip Long Island

Sat 12/6

10:19 am-7:46 am

1 stop22h 27m

$146

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 12/12

10:15 am-7:34 pm

1 stop8h 19m

Islip Long Island

Mon 12/15

10:19 am-8:15 am

1 stop22h 56m

$158

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 12/6

9:00 pm-10:20 am

1 stop12h 20m

Islip Long Island

Sat 12/13

10:19 am-9:11 pm

1 stop11h 52m

$178

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 12/5

9:07 pm-9:13 am

1 stop11h 06m

Islip Long Island

Mon 12/8

10:19 am-8:15 am

1 stop22h 56m

$178

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Wed 12/3

10:15 am-10:44 pm

1 stop11h 29m

Islip Long Island

Tue 12/9

8:29 pm-8:15 am

1 stop12h 46m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 23 results
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

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

Currently, March is the cheapest month in which you can book a flight from Dallas to Islip, New York (average of $71). Flying from Dallas to Islip, New York in December is currently the most expensive (average of $105). 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 November 21, 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 24% versus a flight in the morning.

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 21, 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
4,251 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

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
4,251 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

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 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 $134, Frontier can have you in Islip, New York from Dallas in 6h 36m. 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 31% 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, March is the cheapest month in which you can book a flight from Dallas to Islip, New York (average of $71). Flying from Dallas to Islip, New York in December is currently the most expensive (average of $105). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dallas to Islip

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to LaGuardia flights
Dallas/Fort Worth to John F Kennedy Intl flights
Dallas/Fort Worth to Newark flights
Hobby to LaGuardia flights
Hobby to Newark flights
Hobby to John F Kennedy Intl flights
George Bush Intcntl to LaGuardia flights
George Bush Intcntl to Newark flights
George Bush Intcntl to John F Kennedy Intl flights
Austin to John F Kennedy Intl flights
Austin to Newark flights
Love Field to LaGuardia flights
Austin to LaGuardia flights
San Antonio to John F Kennedy Intl flights
San Antonio to Newark flights
San Antonio to LaGuardia flights
Dallas/Fort Worth to Buffalo flights
Dallas/Fort Worth to Islip flights
George Bush Intcntl to Stewart flights
El Paso to John F Kennedy Intl flights
Dallas/Fort Worth to Stewart flights
Love Field to John F Kennedy Intl flights
El Paso to Newark flights
Love Field to Newark flights
El Paso to LaGuardia flights
Dallas/Fort Worth to Rochester flights
Hobby to Buffalo flights
George Bush Intcntl to Buffalo flights
Austin to Buffalo flights
Hobby to White Plains flights
McAllen to John F Kennedy Intl flights
Austin to Albany flights
Austin to White Plains flights
Dallas/Fort Worth to White Plains flights
George Bush Intcntl to White Plains flights
Austin to Syracuse flights
Lubbock to LaGuardia flights
McAllen to Newark flights
McAllen to LaGuardia flights
Lubbock to Newark flights
Love Field to Buffalo flights
Dallas/Fort Worth to Albany flights
Hobby to Albany flights
Hobby to Rochester flights
Hobby to Syracuse flights
Austin to Rochester flights
Love Field to Rochester flights
Dallas/Fort Worth to Syracuse flights
Corpus Christi to Newark flights
Corpus Christi to LaGuardia flights

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 November 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$290Average$436FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.