$97+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — DFW
Sep 20 — Sep 271
Round-trip
1 adult, Economy
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Find cheap flights from Islip to Dallas 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.Cheap flight deals from Islip to Dallas
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Cheapest flights from Islip to DallasExplore 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 August 21, 2026.
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 August 21, 2026.
This CheapOair deal was found by Cheapflights users on 8/16. 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 9/155:43 pm -
1 stop15h 24m
Tue 9/229:54 pm -
1 stop18h 04m
Deal found 8/16![Frontier logo]()
$186
This Trip.com deal was found by Cheapflights users on 8/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:43 pm -
1 stop15h 24m
Wed 9/169:21 am -
1 stop6h 37m
Deal found 8/17![Frontier logo]()
$188
This CheapOair deal was found by Cheapflights users on 8/17. 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 10/26:48 pm -
1 stop22h 02m
Tue 10/69:54 pm -
1 stop18h 04m
Deal found 8/17![Frontier logo]()
$196
This CheapOair deal was found by Cheapflights users on 8/18. 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.
Thu 9/105:43 pm -
1 stop27h 58m
Sun 9/138:25 pm -
1 stop20h 38m
Deal found 8/18![Frontier logo]()
$228
This CheapOair deal was found by Cheapflights users on 8/17. 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 9/246:48 pm -
1 stop20h 27m
Sun 9/279:54 pm -
1 stop18h 04m
Deal found 8/17![Frontier logo]()
$239
This CheapOair deal was found by Cheapflights users on 8/18. 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.
Fri 9/186:48 pm -
1 stop22h 02m
Sun 9/209:21 am -
1 stop6h 37m
Deal found 8/18![Frontier logo]()
$249
This CheapOair deal was found by Cheapflights users on 8/17. 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 11/54:13 pm -
1 stop17h 59m
Sun 11/810:17 am -
1 stop27h 16m
Deal found 8/17![Frontier logo]()
$283
This Frontier deal was found by Cheapflights users on 8/16. 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 9/47:09 pm -
1 stop13h 24m
Sun 9/610:08 am -
1 stop7h 53m
Deal found 8/16![Frontier logo]()
$293
This CheapOair deal was found by Cheapflights users on 8/20. 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.
Sat 9/195:43 pm -
1 stop19h 39m
Sat 9/269:21 am -
1 stop6h 37m
Deal found 8/20![Frontier logo]()
$296
Best flights from Islip to DallasDiscover carefully curated flight deals from Islip to Dallas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
Discover carefully curated flight deals from Islip to Dallas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
This CheapOair deal was found by Cheapflights users on 8/16. 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 9/155:43 pm -
1 stop15h 24m
Tue 9/229:54 pm -
1 stop18h 04m
Deal found 8/16![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Fri 10/163:02 pm -
1 stop24h 08m
Mon 10/191:46 pm -
2 stops20h 34m
Deal found 8/16![Multiple Airlines logo]()
$320
This JetBlue deal was found by Cheapflights users on 8/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:00 am -
1 stop10h 15m
Thu 10/291:25 pm -
1 stop7h 12m
Deal found 8/20![JetBlue logo]()
$476
This JetBlue deal was found by Cheapflights users on 8/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:00 am -
1 stop9h 29m
Sat 9/2612:15 pm -
1 stop10h 07m
Deal found 8/18![JetBlue logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1910:57 am -
2 stops10h 53m
Sun 11/228:00 pm -
1 stop22h 06m
Deal found 8/20![Multiple Airlines logo]()
$514
This JetBlue deal was found by Cheapflights users on 8/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am -
1 stop10h 15m
Tue 10/271:25 pm -
1 stop7h 12m
Deal found 8/20![JetBlue logo]()
$476
This JetBlue deal was found by Cheapflights users on 8/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:00 am -
1 stop7h 30m
Thu 10/291:25 pm -
1 stop7h 12m
Deal found 8/21![JetBlue logo]()
$491
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:57 am -
1 stop12h 06m
Tue 12/110:07 am -
2 stops47h 10m
Deal found 8/20![Multiple Airlines logo]()
$545
Last-minute flights from Islip to DallasDiscover last-minute flight deals from Islip to Dallas. Data last updated August 21, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Dallas. Data last updated August 21, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/16. 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 9/47:09 pm -
1 stop13h 24m
Sun 9/610:08 am -
1 stop7h 53m
Deal found 8/16![Frontier logo]()
$293
This Frontier deal was found by Cheapflights users on 8/16. 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 9/610:57 am -
1 stop9h 03m
Mon 9/78:05 pm -
1 stop12h 48m
Deal found 8/16![Frontier logo]()
$317
This Trip.com deal was found by Cheapflights users on 8/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:43 pm -
1 stop15h 24m
Wed 9/169:21 am -
1 stop6h 37m
Deal found 8/17![Frontier logo]()
$188
This CheapOair deal was found by Cheapflights users on 8/18. 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.
Thu 9/105:43 pm -
1 stop27h 58m
Sun 9/138:25 pm -
1 stop20h 38m
Deal found 8/18![Frontier logo]()
$228
This CheapOair deal was found by Cheapflights users on 8/16. 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 9/155:43 pm -
1 stop15h 24m
Tue 9/229:54 pm -
1 stop18h 04m
Deal found 8/16![Frontier logo]()
$186
This CheapOair deal was found by Cheapflights users on 8/17. 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 9/176:48 pm -
1 stop20h 27m
Mon 9/219:54 pm -
1 stop18h 04m
Deal found 8/17![Frontier logo]()
$283
This CheapOair deal was found by Cheapflights users on 8/18. 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.
Fri 9/186:48 pm -
1 stop22h 02m
Sun 9/209:21 am -
1 stop6h 37m
Deal found 8/18![Frontier logo]()
$249
This CheapOair deal was found by Cheapflights users on 8/20. 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.
Sat 9/195:43 pm -
1 stop19h 39m
Sat 9/269:21 am -
1 stop6h 37m
Deal found 8/20![Frontier logo]()
$296
This CheapOair deal was found by Cheapflights users on 8/17. 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 9/246:48 pm -
1 stop20h 27m
Sun 9/279:54 pm -
1 stop18h 04m
Deal found 8/17![Frontier logo]()
$239
One-way flights from Islip to DallasSearch for one-way flight options from Islip to Dallas. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
Search for one-way flight options from Islip to Dallas. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
This Trip.com deal was found by Cheapflights users on 8/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:48 pm -
1 stop20h 27m
Deal found 8/16![Frontier logo]()
$97
This CheapOair deal was found by Cheapflights users on 8/19. 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 9/176:48 pm -
1 stop20h 27m
Deal found 8/19![Frontier logo]()
$123
This CheapOair deal was found by Cheapflights users on 8/16. 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 10/45:43 pm -
1 stop19h 39m
Deal found 8/16![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Wed 10/712:00 pm -
2 stops10h 54m
Deal found 8/19![Multiple Airlines logo]()
$140
This Frontier deal was found by Cheapflights users on 8/16. 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 -
1 stop9h 03m
Deal found 8/16![Frontier logo]()
$163
This Frontier deal was found by Cheapflights users on 8/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:57 am -
1 stop9h 03m
Deal found 8/20![Frontier logo]()
$173
This Frontier deal was found by Cheapflights users on 8/17. 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 8/2510:57 am -
1 stop9h 03m
Deal found 8/17![Frontier logo]()
$190
This Frontier deal was found by Cheapflights users on 8/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:09 pm -
1 stop13h 24m
Deal found 8/18![Frontier logo]()
$196
This Frontier deal was found by Cheapflights users on 8/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:09 pm -
1 stop13h 24m
Deal found 8/18![Frontier logo]()
$206
This CheapOair deal was found by Cheapflights users on 8/20. 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 9/77:09 pm -
1 stop24h 51m
Deal found 8/20![Frontier logo]()
$207
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 August 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $186 (CheapOair) |
One-way from | $97 (Trip.com) |
Popular in | December |
Cheapest in | November |
Average price | $437 |
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 7,457,451 searches. Data last updated August 21, 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
Cheapest round-trip
IslipDallas
ISP Islip Long Island - DFW Dallas/Fort Worth
ISPDFW
Islip Long Island
Tue 9/15
5:43 pm-8:07 am
1 stop15h 24m
Dallas/Fort Worth
Tue 9/22
9:54 pm-4:58 pm
1 stop18h 04m
$186
IslipDallas
ISP Islip Long Island - DFW Dallas/Fort Worth
ISPDFW
Islip Long Island
Fri 10/16
3:02 pm-2:10 pm
1 stop24h 08m
Dallas/Fort Worth
Mon 10/19
1:46 pm-11:20 am
2 stops20h 34m
$320
IslipDallas
ISP Islip Long Island - DFW Dallas/Fort Worth
ISPDFW
Islip Long Island
Tue 10/27
6:00 am-3:15 pm
1 stop10h 15m
Dallas/Fort Worth
Thu 10/29
1:25 pm-9:37 pm
1 stop7h 12m
$476
IslipDallas
ISP Islip Long Island - DFW Dallas/Fort Worth
ISPDFW
Islip Long Island
Mon 9/21
7:00 am-3:29 pm
1 stop9h 29m
Dallas/Fort Worth
Sat 9/26
12:15 pm-11:22 pm
1 stop10h 07m
$476
IslipDallas
ISP Islip Long Island - DFW Dallas/Fort Worth
ISPDFW
Islip Long Island
Wed 10/21
6:00 am-3:15 pm
1 stop10h 15m
Dallas/Fort Worth
Tue 10/27
1:25 pm-9:37 pm
1 stop7h 12m
$476
Quickest round-trip
IslipDallas
ISP Islip Long Island - DFW Dallas/Fort Worth
ISPDFW
Islip Long Island
Sun 10/25
6:00 am-12:30 pm
1 stop7h 30m
Dallas/Fort Worth
Thu 10/29
1:25 pm-9:37 pm
1 stop7h 12m
$491
IslipDallas
ISP Islip Long Island - DFW Dallas/Fort Worth
ISPDFW
Islip Long Island
Thu 11/19
10:57 am-8:50 pm
2 stops10h 53m
Dallas/Fort Worth
Sun 11/22
8:00 pm-7:06 pm
1 stop22h 06m
$514
IslipDallas
ISP Islip Long Island - DFW Dallas/Fort Worth
ISPDFW
Islip Long Island
Thu 11/26
10:57 am-10:03 pm
1 stop12h 06m
Dallas/Fort Worth
Tue 12/1
10:07 am-10:17 am
2 stops47h 10m
$545
Cheapest one-way
Quickest one-way
IslipDallas
ISP Islip Long Island - DFW Dallas/Fort Worth
ISPDFW
Islip Long Island
Tue 9/1
10:57 am-7:00 pm
1 stop9h 03m
$163
IslipDallas
ISP Islip Long Island - DFW Dallas/Fort Worth
ISPDFW
Islip Long Island
Sun 10/4
5:43 pm-12:12 pm
2 stops19h 29m
$184
Showing 1-10 of 19 resultsSorted by cheapest first
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.
ISP-A78
ISP-DFW
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
ISP-A78
ISP-DFW
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 August 21, 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.
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentIla,Mar 2025
HOU - DAL
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentIla,Mar 2025
HOU - DAL
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentIla,Mar 2025
HOU - DAL
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.
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Alternative routes for Islip to Dallas
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Complete your trip
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Islip and Dallas flights
Browse other Islip and Dallas flight options. Last updated on August 21, 2026.
Other flights from Islip
Browse through other flights departing from Islip. Flights are based on user searches made on Cheapflights and were last updated on August 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated August 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$115 | Average$198 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$279 | Average$397 | FlexibilityNo cancel fee | On-time63% |