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$135+ 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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — DFW
Jul 27 — Aug 31
Mon 7/27
Mon 8/3
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 June 27, 2026.

This Expedia deal was found by Cheapflights users on 6/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/277:46 pm
ISP
-
DFW
1 stop17h 37m
Frontier
Thu 7/308:14 pm
DFW
-
ISP
1 stop12h 39m
Frontier
Deal found 6/24$242
This Frontier deal was found by Cheapflights users on 6/22. 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 8/510:57 am
ISP
-
DFW
1 stop9h 06m
Frontier
Mon 8/175:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Deal found 6/22$246
This Frontier deal was found by Cheapflights users on 6/22. 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.
Tue 9/110:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Wed 9/28:05 pm
DFW
-
ISP
1 stop12h 48m
Frontier
Deal found 6/22$250
This Frontier deal was found by Cheapflights users on 6/23. 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 8/510:57 am
ISP
-
DFW
1 stop9h 06m
Frontier
Tue 8/188:05 pm
DFW
-
ISP
1 stop12h 48m
Frontier
Deal found 6/23$251
This Frontier deal was found by Cheapflights users on 6/26. 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 9/410:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Tue 9/88:05 pm
DFW
-
ISP
1 stop12h 28m
Frontier
Deal found 6/26$257
This Frontier deal was found by Cheapflights users on 6/22. 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.
Mon 7/1310:57 am
ISP
-
DFW
1 stop9h 18m
Frontier
Thu 7/238:14 pm
DFW
-
ISP
1 stop12h 39m
Frontier
Deal found 6/22$290
This Frontier deal was found by Cheapflights users on 6/23. 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 7/2410:57 am
ISP
-
DFW
1 stop9h 18m
Frontier
Mon 7/275:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Deal found 6/23$305
This Priceline deal was found by Cheapflights users on 6/24. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/184:58 pm
ISP
-
DFW
1 stop7h 18m
Multiple Airlines
Fri 8/2110:08 am
DFW
-
ISP
1 stop7h 53m
Multiple Airlines
Deal found 6/24$308
This Expedia deal was found by Cheapflights users on 6/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:00 am
ISP
-
DFW
1 stop10h 15m
Multiple Airlines
Thu 8/612:15 pm
DFW
-
ISP
1 stop20h 38m
Multiple Airlines
Deal found 6/25$313
This Expedia deal was found by Cheapflights users on 6/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:00 am
ISP
-
DFW
1 stop10h 15m
Multiple Airlines
Sun 7/268:14 pm
DFW
-
ISP
1 stop12h 39m
Multiple Airlines
Deal found 6/24$323
This Booking.com deal was found by Cheapflights users on 6/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:46 pm
ISP
-
DFW
1 stop17h 37m
Frontier
Sun 7/1212:10 pm
DFW
-
ISP
1 stop20h 43m
Frontier
Deal found 6/23$326

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 June 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$242
(Frontier)

One-way from

$135
(Frontier)

Popular in

July

Cheapest in

October

Average price

$506
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. 13% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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 June 27, 2026.
Use the filters below to find and compare flights from Islip to Dallas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Wed 9/23

4:13 pm-9:12 am

1 stop17h 59m

Dallas/Fort Worth

Thu 9/24

10:17 am-9:33 am

1 stop22h 16m

$242

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Tue 9/1

10:57 am-7:00 pm

1 stop9h 03m

Dallas/Fort Worth

Wed 9/2

8:05 pm-9:53 am

1 stop12h 48m

$250

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sat 9/5

10:57 am-6:03 pm

1 stop8h 06m

Dallas/Fort Worth

Tue 9/8

8:05 pm-9:33 am

1 stop12h 28m

$290
Quickest round-trip

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Tue 8/4

6:00 am-3:15 pm

1 stop10h 15m

Dallas/Fort Worth

Tue 8/11

11:44 am-9:49 pm

1 stop9h 05m

$373

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 8/6

6:00 am-3:15 pm

1 stop10h 15m

Dallas/Fort Worth

Tue 8/11

11:44 am-9:49 pm

1 stop9h 05m

$383

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Tue 8/4

6:00 am-3:15 pm

1 stop10h 15m

Dallas/Fort Worth

Thu 8/20

11:44 am-9:49 pm

1 stop9h 05m

$383

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 8/6

6:00 am-3:15 pm

1 stop10h 15m

Dallas/Fort Worth

Thu 8/13

11:44 am-9:49 pm

1 stop9h 05m

$393

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Mon 9/28

7:00 am-3:29 pm

1 stop9h 29m

Dallas/Fort Worth

Mon 10/5

12:25 pm-11:22 pm

1 stop9h 57m

$473

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Tue 12/15

5:50 am-3:15 pm

1 stop10h 25m

Dallas/Fort Worth

Wed 1/6

11:45 am-9:40 pm

1 stop8h 55m

$513

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Mon 12/14

5:50 am-3:15 pm

1 stop10h 25m

Dallas/Fort Worth

Wed 1/6

11:45 am-9:40 pm

1 stop8h 55m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/26

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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
No data available for this route at this time. Please check back soon.

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 June 27, 2026.
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
7.9
Good
4,246 reviews

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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
4,246 reviews
Southwest
7.9
Good
4,246 reviews

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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.
Frontier
5.6
Fair
2,858 reviews
Southwest
7.9
Good
4,246 reviews

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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 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 10h 15m. Frontier provides one of the quickest options available for as low as $373. Airlines will cover a distance of 1425 mi. This flight may include one or multiple stops.

  • 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 71% 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.

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 June 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$115Average$198FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$253Average$375FlexibilityNo cancel feeOn-time63%

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