What is the cheapest airline to fly from Islip, New York to Dallas round-trip?

Cheapflights users have booked flights from Islip, New York to Dallas round-trip from $245. You may be able to fly from Islip, New York to Dallas for 36% less than the average price by searching for this airline.

What is the cheapest day to fly from Islip, New York to Dallas?

Travelers seeking maximum savings on their Islip, New York to Dallas flight should consider departing on Friday evenings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Dallas ranges from 1.9 - 4.9 inches per month. May is typically the wettest month, when rainfall can reach 4.9 in. August is typically the driest time to visit Dallas when rainfall is around 1.9 in.

If weather is an important factor for your trip to Dallas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

What is the cheapest day to fly round-trip from Islip, New York to Dallas?

Travelers have found that booking a Thursday departure is the best way to save up to 680% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Islip, New York to Dallas?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 50 days in advance, which can save you up to 44% on flights from Islip, New York to Dallas compared to booking the week you need them. Waiting 50 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $270. For sooner than that we have options available in the next 3 days from $383.

What is the cheapest month to fly from Islip, New York to Dallas?

Flights from Islip, New York to Dallas lean towards being more expensive in December. Prices are generally better when you fly from Islip, New York to Dallas in September, with the cheapest ticket starting at $77.

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.

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.

$135+ Flights from Islip, NY to Dallas

Q: How much does it cost to fly round-trip from Islip, New York to Dallas?

Airfare is below average for this route at the moment. Islip, New York to Dallas flights typically cost between $320 and $414 in August. The cheapest round-trip price found within the last 3 days was $245 on Frontier (Aug 13-Aug 15).

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Cheap flight deals from Islip to Dallas

Round-trip from	$245 (FlightHub)
One-way from	$135 (Frontier)
Popular in	April
Cheapest in	February
Average price	$448

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 ($128 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 July 2025

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Find 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 July 25, 2025.

Wed 7/308:37 pmISP - DFW

1 stop14h 48mFrontier

Wed 8/611:22 amDFW - ISP

1 stop7h 30mFrontier

Deal found 7/23

$225

Wed 8/208:00 amISP - DFW

1 stop16h 54mMultiple Airlines

Wed 8/276:50 amDFW - ISP

1 stop15h 51mMultiple Airlines

Deal found 7/22

$311

Best flights from Islip to Dallas
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 July 25, 2025.

Wed 8/138:37 pmISP - DFW

1 stop23h 02mFrontier

Fri 8/1511:22 amDFW - ISP

1 stop7h 20mFrontier

Deal found 7/24

$245

Wed 8/138:37 pmISP - DFW

2 stops20h 08mMultiple Airlines

Fri 8/156:50 amDFW - ISP

1 stop11h 52mMultiple Airlines

Deal found 7/24

$379

Last-minute flights from Islip to Dallas
Discover last-minute flight deals from Islip to Dallas. Data last updated July 25, 2025 and is based on user searches.

Tue 7/291:55 pmISP - DFW

2 stops21h 07mMultiple Airlines

Sun 8/37:30 pmDFW - ISP

3 stops18h 49mMultiple Airlines

Deal found 7/22

$827

Wed 7/308:37 pmISP - DFW

1 stop14h 48mFrontier

Wed 8/611:22 amDFW - ISP

1 stop7h 30mFrontier

Deal found 7/23

$225

Wed 8/208:00 amISP - DFW

1 stop16h 54mMultiple Airlines

Wed 8/276:50 amDFW - ISP

1 stop15h 51mMultiple Airlines

Deal found 7/22

$311

One-way flights from Islip to Dallas
Search for one-way flight options from Islip to Dallas. Find affordable one-way fares based on user searches. Data last updated July 25, 2025.

Thu 8/76:00 amISP - DFW

1 stop13h 39mFrontier

Deal found 7/23

$135

Thu 7/312:05 pmISP - DFW

2 stops9h 50mMultiple Airlines

Deal found 7/23

$294

Fly from

Fly to

Route

Depart

Return

Price

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Fri 8/8

8:37 pm-10:10 am

1 stop14h 33m

Dallas/Fort Worth

Tue 8/12

11:22 am-9:58 pm

1 stop9h 36m

$247

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Wed 8/20

8:00 am-11:54 pm

1 stop16h 54m

Dallas/Fort Worth

Wed 8/27

6:50 am-11:41 pm

1 stop15h 51m

$311

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 8/7

6:00 am-6:39 pm

1 stop13h 39m

$135

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 7/31

2:05 pm-10:55 pm

2 stops9h 50m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

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, August is the cheapest month in which you can book a flight from Islip, New York to Dallas (average of $216). Flying from Islip, New York to Dallas in March is currently the most expensive (average of $295). 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?

A simple way to save on the total cost of your ticket is to fly from Islip, New York to Dallas in the afternoon. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from Islip, New York to Dallas?

Reviews of airlines servicing Dallas

Read through reviews of airlines operating flights from Islip to Dallas, such as Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Frontier

5.9

Fair

3,244 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.

Frontier

5.9

Fair

3,244 reviews

Frontier

5.9

Fair

3,244 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2025

TTN - TPA

Related info for your journey

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.
What is the cheapest airline to fly from Islip, New York to Dallas round-trip?
Cheapflights users have booked flights from Islip, New York to Dallas round-trip from $245. You may be able to fly from Islip, New York to Dallas for 36% less than the average price by searching for this airline.
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, August is the cheapest month in which you can book a flight from Islip, New York to Dallas (average of $216). Flying from Islip, New York to Dallas in March is currently the most expensive (average of $295). 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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Top 2 airlines flying from Islip to Dallas

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$52	Average$238	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$268	Average$436	FlexibilityNo cancel fee	On-time63%

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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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.

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Find flight deals from Islip to Dallas

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 July 25, 2025.

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 July 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Islip to Dallas that are best for you.

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.

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?

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 July 25, 2025.

How much does it cost to fly round-trip from Islip, New York to Dallas?

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 July 25, 2025.

Read through reviews of airlines operating flights from Islip to Dallas, such as Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

What is the cheapest airline to fly from Islip, New York to Dallas round-trip?

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

How can I find direct flights from Islip to Dallas?

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

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

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 Islip to Dallas

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Islip to Dallas

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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 July 25, 2025.