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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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ISP
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This CheapOair deal was found by Cheapflights users on 12/9. 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
Tue 12/168:29 pmISP - DFW
1 stop12h 46mFrontier
Deal found 12/9$254
This CheapOair deal was found by Cheapflights users on 12/11. 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
Thu 12/1812:20 pmISP - DFW
1 stop20h 11mFrontier
Deal found 12/11$279
This CheapOair deal was found by Cheapflights users on 12/11. 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 12/308:55 pmDFW - ISP
1 stop24h 22mFrontier
Fri 1/22:04 pmISP - DFW
1 stop18h 27mFrontier
Deal found 12/11$283
This CheapOair deal was found by Cheapflights users on 12/10. 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 12/139:00 pmDFW - ISP
1 stop12h 20mFrontier
Mon 12/1510:19 amISP - DFW
1 stop22h 56mFrontier
Deal found 12/10$285
This CheapOair deal was found by Cheapflights users on 12/10. 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 stop22h 27mFrontier
Deal found 12/10$305
This CheapOair deal was found by Cheapflights users on 12/10. 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 12/121:10 pmDFW - ISP
1 stop9h 49mFrontier
Sun 12/218:35 pmISP - DFW
1 stop11h 56mFrontier
Deal found 12/10$308
This CheapOair deal was found by Cheapflights users on 12/10. 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 stop11h 29mFrontier
Sun 12/212:04 pmISP - DFW
1 stop18h 27mFrontier
Deal found 12/10$309
This CheapOair deal was found by Cheapflights users on 12/11. 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 12/159:12 pmDFW - ISP
1 stop21h 22mFrontier
Fri 12/191:27 pmISP - DFW
1 stop19h 04mFrontier
Deal found 12/11$319
This CheapOair deal was found by Cheapflights users on 12/11. 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 12/121:10 pmDFW - ISP
1 stop9h 49mFrontier
Mon 12/226:25 amISP - DFW
1 stop14h 35mFrontier
Deal found 12/11$334
This CheapOair deal was found by Cheapflights users on 12/10. 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 12/149:00 pmDFW - ISP
1 stop11h 13mFrontier
Sun 12/212:04 pmISP - DFW
1 stop18h 27mFrontier
Deal found 12/10$338
This CheapOair deal was found by Cheapflights users on 12/10. 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
Sun 12/1411:15 amISP - DFW
1 stop21h 26mFrontier
Deal found 12/10$339

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 December 12, 2025.

Round-trip from

$129
(CheapOair)

One-way from

$71
(CheapOair)

Popular in

November

Cheapest in

April

Average price

$706
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. 24% potential increase in price ($140 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 12, 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 2/11

9:30 am-2:39 pm

1 stop28h 09m

Islip Long Island

Fri 2/27

8:33 am-4:54 pm

1 stop9h 21m

$129

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 1/24

2:28 pm-8:40 am

1 stop17h 12m

Islip Long Island

Mon 1/26

7:43 pm-5:41 pm

1 stop22h 58m

$129

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 2/10

9:00 am-1:13 pm

1 stop27h 13m

Islip Long Island

Thu 2/19

5:07 pm-12:01 pm

1 stop19h 54m

$183

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 1/10

11:32 am-7:08 pm

1 stop6h 36m

Islip Long Island

Thu 1/15

7:58 pm-12:01 pm

1 stop17h 03m

$183

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 1/8

12:04 pm-7:45 pm

1 stop6h 41m

Islip Long Island

Sat 1/10

7:56 pm-8:15 am

1 stop13h 19m

$183

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 2/10

9:00 am-1:13 pm

1 stop27h 13m

Islip Long Island

Wed 2/25

2:03 pm-10:23 am

1 stop21h 20m

$183

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Wed 1/7

2:40 pm-7:45 pm

1 stop28h 05m

Islip Long Island

Tue 1/13

8:00 am-9:06 pm

1 stop14h 06m

$183

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 1/23

1:23 pm-8:47 pm

1 stop6h 24m

Islip Long Island

Mon 1/26

7:43 pm-5:41 pm

1 stop22h 58m

$211

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 1/17

11:33 am-10:46 pm

1 stop10h 13m

Islip Long Island

Sun 1/18

1:42 pm-8:45 pm

1 stop8h 03m

$237

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 1/15

9:45 pm-7:50 pm

1 stop21h 05m

Islip Long Island

Sun 1/18

1:42 pm-8:45 pm

1 stop8h 03m

$238

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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.

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 December 12, 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 December 12, 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
7.9
Good
4,253 reviews

Entertainment

7.5

Overall

7.9

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

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
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Entertainment

7.5

Overall

7.9

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

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 $129, Frontier can have you in Islip, New York from Dallas in 28h 09m. 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 33% 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

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$290Average$431FlexibilityNo cancel feeOn-time63%

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