ISP - DFW

$70 Find Cheap Flights from Islip to Dallas

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Dallas/Fort Worth departing on 2/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Dallas/Fort Worth Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Dallas, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Dallas, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$190
Overall average: $780
Frontier
Mon 4/20Wed 4/29
ISP - DFW • 1 stop
Cheapest one-way
$70
Frontier
Sat 2/21
ISP - DFW • 1 stop
When to travel
October
Cheapest • 51% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dallas/Fort Worth!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Islip to Dallas/Fort Worth (ISP-DFW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Dallas/Fort Worth that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to Dallas/Fort Worth

Mon, Apr 20 - Wed, Apr 29
Frontier Logo
3:50 pm - 9:43 pm
ISP
-
DFW
6h 53m
1 stop
Frontier Logo
6:51 pm - 9:13 am
DFW
-
ISP
13h 22m
1 stop
$190Frontier
Thu, Feb 26 - Sun, Mar 1
Frontier Logo
5:07 pm - 12:01 pm
ISP
-
DFW
19h 54m
1 stop
Frontier Logo
2:50 pm - 7:38 am
DFW
-
ISP
15h 48m
1 stop
$204Frontier
Mon, Mar 23 - Thu, Mar 26
Multiple Airlines Logo
2:31 pm - 1:18 pm
ISP
-
DFW
23h 47m
2 stops
Multiple Airlines Logo
9:00 pm - 12:47 pm
DFW
-
ISP
14h 47m
1 stop
$207Multiple Airlines
Thu, Apr 23 - Wed, Apr 29
Frontier Logo
3:50 pm - 9:43 pm
ISP
-
DFW
6h 53m
1 stop
Frontier Logo
6:51 pm - 9:13 am
DFW
-
ISP
13h 22m
1 stop
$211Frontier
Fri, Feb 27 - Fri, Mar 6
Frontier Logo
3:34 pm - 3:52 pm
ISP
-
DFW
25h 18m
1 stop
Frontier Logo
6:12 pm - 9:48 am
DFW
-
ISP
14h 36m
2 stops
$212Frontier
Fri, Feb 20 - Mon, Feb 23
Multiple Airlines Logo
3:34 pm - 10:49 pm
ISP
-
DFW
8h 15m
1 stop
Multiple Airlines Logo
8:40 pm - 11:10 am
DFW
-
ISP
37h 30m
2 stops
$224Multiple Airlines
Fri, Feb 27 - Fri, Mar 6
Multiple Airlines Logo
3:34 pm - 3:52 pm
ISP
-
DFW
25h 18m
1 stop
Multiple Airlines Logo
2:30 pm - 11:10 am
DFW
-
ISP
19h 40m
1 stop
$225Multiple Airlines
Mon, Apr 20 - Sun, Apr 26
Frontier Logo
3:50 pm - 9:43 pm
ISP
-
DFW
6h 53m
1 stop
Frontier Logo
6:49 pm - 9:13 am
DFW
-
ISP
13h 24m
1 stop
$245Frontier
Thu, Feb 26 - Sun, Mar 1
Frontier Logo
5:07 pm - 12:01 pm
ISP
-
DFW
19h 54m
1 stop
Frontier Logo
2:50 pm - 7:38 am
DFW
-
ISP
15h 48m
1 stop
$246Frontier
Mon, Mar 23 - Thu, Mar 26
Multiple Airlines Logo
1:22 pm - 7:49 pm
ISP
-
DFW
31h 27m
1 stop
Multiple Airlines Logo
7:20 am - 4:13 pm
DFW
-
ISP
7h 53m
1 stop
$250Multiple Airlines
Booking Insights

KAYAK's insights & trends for Islip to Dallas/Fort Worth flights

Get data-powered insights and trends into flights from Islip to Dallas/Fort Worth to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Islip to Dallas/Fort Worth Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Islip to Dallas/Fort Worth Airport is October, where tickets cost $203 (return) on average. On the other hand, the most expensive months are April and January, where the average cost of round-trip tickets is $780 and $590 respectively.

Good to know

Low seasonJuly
Cheapest flight$70
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 37% lower on average.
Flight from Islip to Dallas

When to book flights from Islip to Dallas/Fort Worth

Are your dates flexible? Find out the best times to travel from Islip to Dallas/Fort Worth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Islip to Dallas flights

  • What is the cheapest flight from Islip to Dallas/Fort Worth Airport?

    In the last 3 days, the lowest price for a flight from Islip to Dallas/Fort Worth Airport was $70 for a one-way ticket and $190 for a round-trip.

  • Do I need a passport to fly between Islip and Dallas?

    No

  • Which aircraft models fly most regularly from Islip to Dallas?

    We unfortunately don’t have that data for this specific route.

  • Which is the best airline for flights from Islip to Dallas, Southwest or Frontier?

    The two airlines most popular with KAYAK users for flights from Islip to Dallas are Southwest and Frontier. With an average price for the route of $434 and an overall rating of 8.0, Southwest is the most popular choice. Frontier is also a great choice for the route, with an average price of $200 and an overall rating of 5.7.

  • How does KAYAK find such low prices on flights from Islip to Dallas?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Dallas.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Dallas?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dallas from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Dallas?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Dallas with an airline and back to Islip with another airline. Booking your flights between Islip and DFW can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Dallas?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Dallas from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Islip to Dallas/Fort Worth

 
See real verified KAYAK customer reviews for airlines flying from Islip to Dallas. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Islip to Dallas/Fort Worth? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4273 reviews
7.5Entertainment
8.0Comfort
8.6Crew
8.1Boarding
7.0Food
Airline reviews

Great flight but super high price. Glad it was a business trip and not personal

10.0 ExcellentPieter, Jan 2026
LGB - DAL
Read more Southwest reviews

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

Everything a cheap airline should be at normal airline rates.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

It was one and half hour late... Not sure if any other experience matters.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

Everything you need to know for your flight from Islip to Dallas/Fort Worth

Information on your arrival and departure airports