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$71+ Cheap flights from Islip, NY (ISP) to Dallas

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — DFW
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Cheap flight deals from Islip to Dallas

Cheapest flights from Islip to Dallas
Explore the most affordable flight options available from Islip to Dallas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

This CheapOair deal was found by Cheapflights users on 12/19. 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.
Tue 12/236:25 amISP - DFW
1 stop14h 35mFrontier
Sun 1/410:49 pmDFW - ISP
1 stop19h 50mFrontier
Deal found 12/19$235
This CheapOair deal was found by Cheapflights users on 12/19. 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.
Tue 12/236:25 amISP - DFW
1 stop14h 35mFrontier
Mon 12/298:45 pmDFW - ISP
1 stop13h 40mFrontier
Deal found 12/19$285
This CheapOair deal was found by Cheapflights users on 12/19. 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.
Tue 12/236:25 amISP - DFW
1 stop14h 35mFrontier
Sat 12/276:30 pmDFW - ISP
1 stop17h 39mFrontier
Deal found 12/19$309
This CheapOair deal was found by Cheapflights users on 12/20. 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.
Tue 12/3012:20 pmISP - DFW
1 stop20h 36mFrontier
Sun 1/410:49 pmDFW - ISP
1 stop19h 50mFrontier
Deal found 12/20$314
This CheapOair deal was found by Cheapflights users on 12/18. 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.
Mon 12/226:25 amISP - DFW
1 stop14h 35mFrontier
Sun 12/2810:49 pmDFW - ISP
1 stop13h 20mFrontier
Deal found 12/18$329
This CheapOair deal was found by Cheapflights users on 12/20. 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 12/298:35 pmISP - DFW
1 stop11h 56mFrontier
Wed 12/319:09 pmDFW - ISP
1 stop13h 16mFrontier
Deal found 12/20$343
This CheapOair deal was found by Cheapflights users on 12/19. 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 12/298:35 pmISP - DFW
1 stop18h 19mFrontier
Thu 1/812:04 pmDFW - ISP
1 stop6h 41mFrontier
Deal found 12/19$363
This CheapOair deal was found by Cheapflights users on 12/19. 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.
Tue 12/236:25 amISP - DFW
1 stop14h 35mFrontier
Wed 12/249:09 pmDFW - ISP
1 stop13h 16mFrontier
Deal found 12/19$394
This CheapOair deal was found by Cheapflights users on 12/19. 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 12/246:00 amISP - DFW
1 stop11h 13mFrontier
Tue 12/308:57 pmDFW - ISP
1 stop18h 40mFrontier
Deal found 12/19$413
This CheapOair deal was found by Cheapflights users on 12/20. 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.
Wed 12/315:27 pmISP - DFW
1 stop27h 33mFrontier
Sun 1/410:49 pmDFW - ISP
1 stop19h 50mFrontier
Deal found 12/20$414

Find flight deals from Islip to Dallas

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Dallas (A78). 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 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$134
(Kiwi.com)

One-way from

$71
(CheapOair)

Popular in

April

Cheapest in

February

Average price

$520
Provider with most accurate pricing for New York (NYC)-Dallas flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Dallas flights.
Search Deals
From Islip Long Island to Dallas
Search Deals
One-way flight from Islip Long Island to Dallas
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($126 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Dallas 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 21, 2025.
Use the filters below to find and compare flights from Islip to Dallas that are best for you.

Fly from

Islip

Fly to

Dallas

Route

Depart

Return

Price

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sat 2/21

11:41 am-12:18 am

1 stop13h 37m

Dallas/Fort Worth

Wed 2/25

6:43 pm-4:22 pm

1 stop20h 39m

$134

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sat 1/17

8:00 am-6:10 pm

1 stop11h 10m

Dallas/Fort Worth

Sat 1/24

2:41 pm-8:40 am

1 stop16h 59m

$140

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sat 2/21

11:41 am-11:17 pm

2 stops12h 36m

Dallas/Fort Worth

Wed 2/25

6:43 pm-4:22 pm

1 stop20h 39m

$147

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 1/8

8:40 pm-8:15 am

1 stop12h 35m

Dallas/Fort Worth

Sat 1/10

11:32 am-7:08 pm

1 stop6h 36m

$182

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Mon 1/26

7:43 pm-5:41 pm

1 stop22h 58m

Dallas/Fort Worth

Thu 1/29

8:12 pm-8:47 pm

1 stop23h 35m

$183

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sun 3/1

5:07 pm-3:18 pm

1 stop23h 11m

Dallas/Fort Worth

Wed 3/4

9:00 am-2:39 pm

1 stop28h 39m

$191

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 1/8

8:40 pm-8:15 am

1 stop12h 35m

Dallas/Fort Worth

Sun 1/11

7:57 pm-7:51 pm

1 stop22h 54m

$218

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 1/22

7:43 pm-4:13 pm

1 stop21h 30m

Dallas/Fort Worth

Sun 1/25

1:23 pm-6:48 pm

1 stop28h 25m

$218

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sat 2/28

12:01 pm-12:18 am

1 stop13h 17m

$71

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sat 2/21

11:41 am-12:18 am

1 stop13h 37m

$71

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 17 results
1
2

Best time to book a flight from Islip to Dallas

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

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

Currently, November is the cheapest month in which you can book a flight from Islip, New York to Dallas (average of $43). Flying from Islip, New York to Dallas in July is currently the most expensive (average of $118). 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 ISP to DFW?

Find hourly flight availability from Islip to Dallas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2025.

A simple way to save on the total cost of your ticket is to fly from Islip, New York to Dallas in the evening. If you’re flexible enough to do this you can expect to save up to 66% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Dallas

Get insights into the airlines that provide service to Dallas. 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 Dallas. Reviews last updated December 21, 2025.
Read through reviews of airlines operating flights from Islip to Dallas, such as Southwest and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,079 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Islip to Dallas. 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 from for flights from Islip to Dallas?

    Islip Long Island (ISP) is the airport you will fly out of if you book a flight from Islip to Dallas. You should not have trouble finding flights to Dallas from Long Island; the airport handles an average of 0 outbound flights to Dallas per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Islip airport to Dallas. It is only a 7.2 mi journey to Long Island (ISP) from Islip’s city center.

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

    A quick flight from Islip, New York to Dallas can take about 13h 37m. Frontier provides one of the quickest options available for as low as $134. Airlines will cover a distance of 1425 mi.

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

    Cheapflights users have booked flights from Islip, New York to Dallas round-trip from $115. Another airline that can offer you cheap pricing is Southwest. You may be able to fly from Islip, New York to Dallas for 70% less than the average price by searching for these airlines.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Islip, New York to Dallas (average of $43). Flying from Islip, New York to Dallas in July is currently the most expensive (average of $118). 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

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Alternative routes for Islip to Dallas

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Islip to Dallas

Discover the top 2 airlines that operate flights from Islip to Dallas. 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$115Average$200FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$260Average$426FlexibilityNo cancel feeOn-time63%

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