Find cheap Frontier flights to Islip
DFW — ISP
Nov 8 — Nov 151
Round-trip
1 adult, Economy
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Cheapest Frontier flights from USA to IslipExplore the most affordable Frontier flight options available from USA to Islip. Find the lowest fares with prices last updated on October 9, 2026.
Explore the most affordable Frontier flight options available from USA to Islip. Find the lowest fares with prices last updated on October 9, 2026.
This deal was found by Cheapflights users on 10/8. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/163:18 pm -
Nonstop2h 42m
Sat 10/176:25 pm -
Nonstop3h 00m
Deal found 10/8![Frontier logo]()
$154
This Frontier deal was found by Cheapflights users on 10/5. 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.
Sat 11/72:54 pm -
Nonstop2h 37m
Sat 11/146:33 pm -
Nonstop3h 01m
Deal found 10/5![Frontier logo]()
$177
This Priceline deal was found by Cheapflights users on 10/5. 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.
Thu 10/292:54 pm -
Nonstop2h 37m
Thu 10/296:33 pm -
Nonstop3h 01m
Deal found 10/5![Frontier logo]()
$182
Best Frontier flights from USA to IslipDiscover carefully curated Frontier flight deals from USA to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 9, 2026.
Discover carefully curated Frontier flight deals from USA to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 9, 2026.
This Priceline deal was found by Cheapflights users on 10/5. 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.
Thu 10/292:54 pm -
Nonstop2h 37m
Thu 10/296:33 pm -
Nonstop3h 01m
Deal found 10/5![Frontier logo]()
$182
This Cheapflightsfares deal was found by Cheapflights users on 10/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/311:10 am -
Nonstop2h 38m
Sun 12/62:45 pm -
Nonstop3h 08m
Deal found 10/8![Frontier logo]()
$204
This Super.com deal was found by Cheapflights users on 10/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:18 pm -
Nonstop2h 42m
Sat 10/316:33 pm -
Nonstop3h 01m
Deal found 10/6![Frontier logo]()
$204
Direct Frontier flights from USA to IslipExplore non-stop Frontier flight options from USA to Islip based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 9, 2026.
Explore non-stop Frontier flight options from USA to Islip based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 9, 2026.
This Frontier deal was found by Cheapflights users on 10/5. 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.
Sat 11/72:54 pm -
Nonstop2h 37m
Sat 11/146:33 pm -
Nonstop3h 01m
Deal found 10/5![Frontier logo]()
$177
This Priceline deal was found by Cheapflights users on 10/5. 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.
Thu 10/292:54 pm -
Nonstop2h 37m
Thu 10/296:33 pm -
Nonstop3h 01m
Deal found 10/5![Frontier logo]()
$182
This Super.com deal was found by Cheapflights users on 10/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:18 pm -
Nonstop2h 38m
Sat 11/76:33 pm -
Nonstop3h 01m
Deal found 10/6![Frontier logo]()
$185
Last-minute Frontier flights from USA to IslipDiscover last-minute Frontier flight deals from USA to Islip. Data last updated October 9, 2026 and is based on user searches.
Discover last-minute Frontier flight deals from USA to Islip. Data last updated October 9, 2026 and is based on user searches.
This deal was found by Cheapflights users on 10/8. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/163:18 pm -
Nonstop2h 42m
Sat 10/176:25 pm -
Nonstop3h 00m
Deal found 10/8![Frontier logo]()
$154
This Frontier deal was found by Cheapflights users on 10/5. 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.
Sat 11/72:54 pm -
Nonstop2h 37m
Sat 11/146:33 pm -
Nonstop3h 01m
Deal found 10/5![Frontier logo]()
$177
This Priceline deal was found by Cheapflights users on 10/5. 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.
Thu 10/292:54 pm -
Nonstop2h 37m
Thu 10/296:33 pm -
Nonstop3h 01m
Deal found 10/5![Frontier logo]()
$182
One-way Frontier flights to IslipSearch for one-way Frontier flight options to Islip. Find affordable one-way fares based on user searches. Data last updated October 9, 2026.
Search for one-way Frontier flight options to Islip. Find affordable one-way fares based on user searches. Data last updated October 9, 2026.
This Super.com deal was found by Cheapflights users on 10/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:54 pm -
Nonstop2h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$78
This CheapOair deal was found by Cheapflights users on 10/5. 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 10/312:54 pm -
Nonstop2h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Frontier logo]()
$83
This Cheapflightsfares deal was found by Cheapflights users on 10/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:54 pm -
Nonstop2h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$94
Flights to Islip with Frontier at a glance
Find detailed information about Frontier flights from USA to Islip. Explore the options provided by Frontier to plan your journey from USA to Islip. Data last updated October 9, 2026.
Cheapflights Insights
Find cheap Frontier flights to Islip
US0-ISP
MCO-ISP
How long is the flight to Islip with Frontier?
On average, Frontier flights from the United States to Islip take 2 hours 39 minutes. Flights to Islip from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
Frontier weekly flight availability to Islip
The most flights to Islip operated by Frontier are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).
When is the best time to book a flight to Islip with Frontier?
The best time to book a flight to Islip with Frontier is 31 days before departure. On average, fares are higher if you book 3 days before departure.
When is the cheapest time to fly to Islip with Frontier?
Users looking for the cheapest Frontier fares to Islip should consider flying on Saturday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Monday afternoons, when prices are usually at their highest.
FAQs about flights to Islip with Frontier
Reviews of Frontier
See what Cheapflights users have to say about their Frontier experience.
Overview
Reviews
Frontier
2,551 reviews
Overview
Boarding
5.8
Comfort
5.4
Food
4.5
Entertainment
4.2
Crew
6.5
Recent reviews
2.0
|Sep 2026They charge $25 to check in with an agent and the only other option is to install the app, so I installed it just for this one flight. Then the app didn't find my reservation so they sent me to an agent anyway. The agent was unfriendly and printed my boarding pass without tsa pre check, so I had to go through the standard line. Also the flight was delayed two hours.
8.0
|Sep 2026I was traveling with a lap infant and got to TSA only to be turned around saying that something was wrong with my boarding pass. I went to an agent and said nothing was wrong, printed me a board pass and I had to rejoin the line. The when I get to the ticket counter I found out they changed my family seat even though I purchased it prior. I was told I got a refund so I’ll see
2.0
|Jul 2026Flight was delayed a whole day - no compensation on food or drinks. Gate staff gave an older gentleman a hard time about his confusion and concern regarding the overnight delay.
10.0
|Jul 2026Better Food and there was no entertainment . You guys could provide head phones and wifi for the passengers
2.0
|Jul 2026Flight delayed 3 hours
1 out of 851
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