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$245+ Cheap flights from Islip (ISP) to Utah

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SLC
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap flight deals from Islip to Utah

Keep the following information in mind while searching for Islip to Utah flight deals. Data was last updated September 14, 2025.

Round-trip from

$245
(Frontier)

Popular in

February

Cheapest in

November

Average price

$426
From Islip Long Island to Utah
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Islip to Utah

Cheapest flights from Islip to Utah
Explore the most affordable flight options available from Islip to Utah. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This Frontier deal was found by Cheapflights users on 9/13. 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 9/275:05 pmISP - SLC
2 stops16h 27mFrontier
Thu 10/23:20 pmSLC - ISP
2 stops15h 44mFrontier
Deal found 9/13$245
This Frontier deal was found by Cheapflights users on 9/13. 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 9/275:05 pmISP - SLC
2 stops16h 27mFrontier
Tue 9/306:05 pmSLC - ISP
2 stops14h 35mFrontier
Deal found 9/13$251
This Frontier deal was found by Cheapflights users on 9/13. 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 9/275:05 pmISP - SLC
2 stops16h 27mFrontier
Mon 9/294:02 pmSLC - ISP
2 stops16h 38mFrontier
Deal found 9/13$260
This Frontier deal was found by Cheapflights users on 9/13. 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 9/289:49 amISP - SLC
2 stops16h 25mFrontier
Thu 10/23:20 pmSLC - ISP
2 stops15h 44mFrontier
Deal found 9/13$294
This Frontier deal was found by Cheapflights users on 9/12. 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 9/2511:40 amISP - SLC
2 stops21h 52mFrontier
Mon 9/294:02 pmSLC - ISP
2 stops16h 38mFrontier
Deal found 9/12$296
This Frontier deal was found by Cheapflights users on 9/13. 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 9/289:49 amISP - SLC
2 stops16h 25mFrontier
Mon 9/294:02 pmSLC - ISP
2 stops16h 38mFrontier
Deal found 9/13$332
This Frontier deal was found by Cheapflights users on 9/13. 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 10/99:37 pmISP - SLC
2 stops19h 10mFrontier
Tue 10/145:34 pmSLC - ISP
2 stops15h 23mFrontier
Deal found 9/13$411
This Frontier deal was found by Cheapflights users on 9/12. 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 9/275:05 pmISP - SLC
2 stops16h 27mFrontier
Wed 10/16:05 pmSLC - ISP
2 stops14h 50mFrontier
Deal found 9/12$415
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/251:35 pmISP - SLC
2 stops12h 45mSouthwest
Sun 11/309:10 pmSLC - ISP
2 stops12h 45mSouthwest
Deal found 9/13$729

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Utah 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 2,558,603 searches. Data last updated September 14, 2025.
Use the filters below to find and compare flights from Islip to Utah that are best for you.

Fly from

Islip

Fly to

Utah

Route

Depart

Return

Price

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Sat 9/27

5:05 pm-7:32 am

2 stops16h 27m

Salt Lake City

Thu 10/2

3:20 pm-9:04 am

2 stops15h 44m

$245

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Sat 9/27

5:05 pm-7:32 am

2 stops16h 27m

Salt Lake City

Wed 10/1

6:05 pm-10:55 am

2 stops14h 50m

$251

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Sat 9/27

5:05 pm-7:32 am

2 stops16h 27m

Salt Lake City

Tue 9/30

6:05 pm-10:40 am

2 stops14h 35m

$251

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Sat 9/27

5:05 pm-7:32 am

2 stops16h 27m

Salt Lake City

Fri 10/3

8:44 pm-10:55 am

2 stops12h 11m

$251

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Sun 9/28

9:49 am-12:14 am

2 stops16h 25m

Salt Lake City

Thu 10/2

3:20 pm-9:04 am

2 stops15h 44m

$294

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Thu 9/25

11:40 am-7:32 am

2 stops21h 52m

Salt Lake City

Mon 9/29

4:02 pm-10:40 am

2 stops16h 38m

$296

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Sun 9/28

9:49 am-12:14 am

2 stops16h 25m

Salt Lake City

Mon 9/29

4:02 pm-10:40 am

2 stops16h 38m

$332

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Wed 1/21

12:40 pm-9:45 pm

2 stops11h 05m

Salt Lake City

Sat 1/24

1:20 pm-9:50 pm

1 stop6h 30m

$353

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Thu 1/1

5:40 am-1:40 pm

1 stop10h 00m

$309

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Thu 1/1

2:19 pm-9:37 pm

3 stops33h 18m

$442

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Best time to book a flight from Islip to Utah

Have a flexible travel schedule? Discover the best time to fly to Utah 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 Utah

What is the cheapest month to book a flight from Islip to Utah?

Currently, October is the cheapest month in which you can book a flight from Islip to Utah (average of $277). Flying from Islip to Utah in March is currently the most expensive (average of $417). 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 UT?

Find hourly flight availability from Islip to Utah. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip to Utah as you normally would.

Reviews of airlines servicing Utah

Get insights into the airlines that provide service to Utah. 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 Utah. Reviews last updated September 14, 2025.
See what other customers who have flown with Southwest from Islip to Utah have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,245 reviews

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Islip to Utah. 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 Utah?

    Islip Long Island (ISP) is the airport you will fly out of if you book a flight from Islip to Utah. It is only a 7.2 mi journey to Long Island (ISP) from Islip’s city center.

  • How long is the flight from Islip to Utah?

    There are many flights that can get you from Islip to Utah in 16h 27m. Fly via Frontier to get the fastest option. Islip and Utah are separated by a distance of 2016 mi.

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

    Yes. In addition to deals on Islip to Utah flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Utah?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Utah.

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

    Yes. Cheapflights offers flight deals from Islip to Utah 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 to Utah?

    Currently, October is the cheapest month in which you can book a flight from Islip to Utah (average of $277). Flying from Islip to Utah in March is currently the most expensive (average of $417). 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 airline flying from Islip to Utah

Discover the top airline that operate flights from Islip to Utah. 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 2,558,603 searches. Data last updated September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$402Average$575FlexibilityNo cancel feeOn-time63%

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