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Cheap flights from Islip to Dallas from $104

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip to Dallas departing on 11/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Islip to Dallas (ISP-DFW)

Cheap round-trip flights

Frontier Logo
5:05 pm - 7:13 pmISP-DFW
27h 08m1 stop
Frontier Logo
8:18 pm - 10:40 amDFW-ISP
13h 22m1 stop
$153Frontier
Find Deal
Fri, Sep 12 - Sun, Sep 14
Frontier Logo
11:45 am - 7:13 pmISP-DFW
8h 28m1 stop
Frontier Logo
8:00 am - 4:27 pmDFW-ISP
7h 27m1 stop
$155Frontier
Find Deal
Thu, Sep 4 - Sun, Sep 7
Frontier Logo
11:25 am - 7:13 pmISP-DFW
8h 48m1 stop
Frontier Logo
8:00 am - 4:27 pmDFW-ISP
7h 27m1 stop
$156Frontier
Find Deal
Thu, Sep 11 - Sun, Sep 14
Frontier Logo
11:45 am - 7:13 pmISP-DFW
8h 28m1 stop
Frontier Logo
11:00 am - 10:40 amDFW-ISP
22h 40m1 stop
$174Frontier
Find Deal
Thu, Sep 4 - Wed, Sep 10
Frontier Logo
9:37 pm - 9:25 amISP-DFW
12h 48m1 stop
Frontier Logo
7:46 pm - 5:42 pmDFW-ISP
20h 56m1 stop
$176Frontier
Find Deal
Thu, Oct 23 - Mon, Oct 27
Frontier Logo
5:05 pm - 10:04 amISP-DFW
17h 59m1 stop
Frontier Logo
8:00 am - 4:27 pmDFW-ISP
7h 27m1 stop
$178Frontier
Find Deal
Sat, Sep 20 - Sun, Sep 28
Frontier Logo
9:47 pm - 9:25 amISP-DFW
12h 38m1 stop
Frontier Logo
8:59 pm - 9:42 pmDFW-ISP
23h 43m1 stop
$186Frontier
Find Deal
Sun, Oct 12 - Sat, Nov 1
Frontier Logo
9:49 am - 7:01 pmISP-DFW
10h 12m1 stop
Frontier Logo
9:19 pm - 10:37 amDFW-ISP
12h 18m1 stop
$187Frontier
Find Deal
Thu, Oct 16 - Thu, Oct 16
Logo
5:05 pm - 11:59 pmISP-DFW
7h 54m1 stop
Logo
5:00 am - 10:40 amDFW-ISP
28h 40m1 stop
$192
Find Deal
Fri, Sep 5 - Mon, Sep 8
Logo
9:37 pm - 9:36 pmISP-DFW
24h 59m1 stop
Logo
9:19 pm - 10:37 amDFW-ISP
12h 18m1 stop
$227
Find Deal
Tue, Oct 14 - Thu, Oct 16

Frontier flights from Islip to Dallas/Fort Worth Airport

Our best Frontier deals on Islip to Dallas/Fort Worth Airport flight tickets
Frontier
Sep 12
ISP5:05 pmIslip Long Island
27h 08m
1 stop
DFW7:13 pmDallas/Fort Worth
Sep 14
DFW8:18 pmDallas/Fort Worth
13h 22m
1 stop
ISP10:40 amIslip Long Island
$153
Find similar
Frontier
Sep 4
ISP11:45 amIslip Long Island
8h 28m
1 stop
DFW7:13 pmDallas/Fort Worth
Sep 7
DFW8:00 amDallas/Fort Worth
7h 27m
1 stop
ISP4:27 pmIslip Long Island
$155
Find similar
Frontier
Sep 11
ISP11:25 amIslip Long Island
8h 48m
1 stop
DFW7:13 pmDallas/Fort Worth
Sep 14
DFW8:00 amDallas/Fort Worth
7h 27m
1 stop
ISP4:27 pmIslip Long Island
$156
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Islip to Dallas/Fort Worth Airport 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, momondo users made 832,500 searches. Data last updated August 21, 2025.
Use the filters below to find and compare flights from Islip to Dallas/Fort Worth Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Fri 9/12

5:05 pm-7:13 pm

1 stop27h 08m

Dallas/Fort Worth

Sun 9/14

8:18 pm-10:40 am

1 stop13h 22m

$153

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 9/4

11:45 am-7:13 pm

1 stop8h 28m

Dallas/Fort Worth

Sun 9/7

8:00 am-4:27 pm

1 stop7h 27m

$155

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 9/11

11:25 am-7:13 pm

1 stop8h 48m

Dallas/Fort Worth

Sun 9/14

8:00 am-4:27 pm

1 stop7h 27m

$156

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 9/4

11:45 am-7:13 pm

1 stop8h 28m

Dallas/Fort Worth

Wed 9/10

11:00 am-10:40 am

1 stop22h 40m

$174

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 10/23

9:37 pm-9:25 am

1 stop12h 48m

Dallas/Fort Worth

Mon 10/27

7:46 pm-5:42 pm

1 stop20h 56m

$176

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sat 9/20

5:05 pm-10:04 am

1 stop17h 59m

Dallas/Fort Worth

Sun 9/28

8:00 am-4:27 pm

1 stop7h 27m

$178

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Sun 10/12

9:47 pm-9:25 am

1 stop12h 38m

Dallas/Fort Worth

Sat 11/1

8:59 pm-9:42 pm

1 stop23h 43m

$186

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Thu 10/16

9:49 am-7:01 pm

1 stop10h 12m

Dallas/Fort Worth

Thu 10/16

9:19 pm-10:37 am

1 stop12h 18m

$187

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Fri 9/5

5:05 pm-11:59 pm

1 stop7h 54m

Dallas/Fort Worth

Mon 9/8

5:00 am-10:40 am

1 stop28h 40m

$192

IslipDallas

ISP - DFW

ISPDFW

Islip Long Island

Tue 10/14

9:37 pm-9:36 pm

1 stop24h 59m

Dallas/Fort Worth

Thu 10/16

9:19 pm-10:37 am

1 stop12h 18m

$227

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Islip to Dallas/Fort Worth Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Dallas/Fort Worth Airport?

The cheapest month to fly to Dallas/Fort Worth Airport from Islip is in February. Flight prices, which tend to average around $199, are often lower during this time because this is during the off-season. If you’re not able to fly to Dallas/Fort Worth Airport in February, then September is your next best option. Flight prices from Islip to Dallas/Fort Worth Airport during September average around $264.

What is the cheapest day to depart on your flight to Dallas/Fort Worth Airport?

On average, the least expensive day to fly to Dallas/Fort Worth Airport from Islip is on a Friday. momondo users have found tickets for Friday departures for as low as $335. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Islip to Dallas/Fort Worth Airport for around $460.

What is the cheapest time of day to depart on your flight to Dallas/Fort Worth Airport?

Flying to Dallas/Fort Worth Airport from Islip in the evening is the least expensive time of day to depart. momondo users have found prices as low as $249 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $401 on average. Flights to Dallas/Fort Worth Airport from Islip in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Islip to Dallas/Fort Worth Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Islip to Dallas/Fort Worth Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip to Dallas/Fort Worth Airport (ISP to DFW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip to Dallas/Fort Worth Airport

Direct flights

None
There are no direct flights from Islip to Dallas/Fort Worth Airport. There are no popular flight routes from Islip to Dallas/Fort Worth Airport.
Search flight deals

  • How far is Islip Long Island to Dallas/Fort Worth by plane?

    The distance between Islip Long Island and Dallas/Fort Worth is about 1418.1 mi. By plane, this route typically takes 7h 54m.

  • When did momondo last update prices for flights from Islip Long Island Airport to Dallas/Fort Worth Airport?

    Prices for flights from Islip Long Island Airport to Dallas/Fort Worth Airport refresh daily.

  • How many operators does momondo search for flights from Islip Long Island Airport to Dallas/Fort Worth Airport?

  • How old do you have to be to fly from Islip Long Island Airport to Dallas/Fort Worth Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Dallas/Fort Worth Airport.

  • What documentation or ID do you need to fly to Dallas/Fort Worth Airport?

    The travel and health documents required for your trip to Dallas/Fort Worth Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Dallas/Fort Worth Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Islip to Dallas/Fort Worth Airport?

Best airlines flying from Islip to Dallas/Fort Worth Airport

Compare and see reviews for airlines that fly from Islip to Dallas/Fort Worth Airport with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $268Free CancellationRating
8.0
4,245 reviews
Search Southwest flights

Traveling to a place near Dallas?

Book flights to Dallas if you plan to visit one of these locations
Fort Worth
Arlington
Frisco
Grapevine
Irving
Plano
Denton
Grand Prairie
Thackerville
Garland
McKinney
Durant
Rockwall
Richardson
Lewisville
Ardmore
Addison
Allen
Waxahachie
Granbury

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Dallas?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Islip to Dallas. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Islip to Dallas with flexible booking policies on momondo?

Yes. All flights to Dallas from Islip on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Islip to Dallas?

Once all potential Islip to Dallas flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Islip to Dallas right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Islip to Dallas now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Dallas and let you know when they change.

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