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$171+ Cheap flights from Islip, NY to Salt Lake City (ISP - SLC)

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SLC
Apr 7 — Apr 141
Tue 4/7
Tue 4/14
1 adult, Economy
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Cheap flight deals from Islip to Salt Lake City

Cheapest flights from Islip to Salt Lake City
Explore the most affordable flight options available from Islip to Salt Lake City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 8, 2026.

This Expedia deal was found by Cheapflights users on 3/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:07 pm
ISP
-
SLC
1 stop30h 27m
Frontier
Sun 4/269:59 pm
SLC
-
ISP
1 stop9h 29m
Frontier
Deal found 3/6$200
This Southwest deal was found by Cheapflights users on 3/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:30 am
ISP
-
SLC
1 stop8h 10m
Southwest
Thu 4/2311:35 pm
SLC
-
ISP
1 stop10h 15m
Southwest
Deal found 3/5$378
This Expedia deal was found by Cheapflights users on 3/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:07 pm
ISP
-
SLC
1 stop30h 27m
Multiple Airlines
Sun 4/2611:50 pm
SLC
-
ISP
2 stops18h 19m
Multiple Airlines
Deal found 3/6$424
This Southwest deal was found by Cheapflights users on 3/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:30 pm
ISP
-
SLC
2 stops9h 35m
Southwest
Sun 4/2611:35 pm
SLC
-
ISP
1 stop10h 15m
Southwest
Deal found 3/6$458
This Southwest deal was found by Cheapflights users on 3/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:30 am
ISP
-
SLC
1 stop8h 10m
Southwest
Sun 5/3111:35 pm
SLC
-
ISP
1 stop10h 15m
Southwest
Deal found 3/5$462
This Southwest deal was found by Cheapflights users on 3/3. 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.
Sun 3/2211:45 am
ISP
-
SLC
1 stop13h 25m
Southwest
Fri 3/2710:50 am
SLC
-
ISP
2 stops11h 05m
Southwest
Deal found 3/3$578
This Southwest deal was found by Cheapflights users on 3/4. 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.
Fri 4/32:00 pm
ISP
-
SLC
2 stops11h 55m
Southwest
Fri 4/109:30 pm
SLC
-
ISP
2 stops12h 05m
Southwest
Deal found 3/4$583

Find flight deals from Islip to Salt Lake City

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Salt Lake City (SLC). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$200
(Expedia)

One-way from

$171
(CheapOair)

Popular in

December

Cheapest in

August

Average price

$469
Provider with most accurate pricing for Islip Long Island-Salt Lake City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Salt Lake City flights.
Search Deals
From Islip Long Island to Salt Lake City
Search Deals
One-way flight from Islip Long Island to Salt Lake City
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Salt Lake City 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 March 8, 2026.
Use the filters below to find and compare flights from Islip to Salt Lake City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Tue 4/21

6:30 am-12:40 pm

1 stop8h 10m

Salt Lake City

Thu 4/23

11:30 am-11:30 pm

2 stops10h 00m

$378

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Fri 4/24

4:30 pm-12:05 am

2 stops9h 35m

Salt Lake City

Sun 4/26

11:35 pm-11:50 am

1 stop10h 15m

$458

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Wed 5/27

6:30 am-12:40 pm

1 stop8h 10m

Salt Lake City

Sun 5/31

11:35 pm-11:50 am

1 stop10h 15m

$462

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Fri 4/3

2:00 pm-10:30 pm

2 stops10h 30m

Salt Lake City

Fri 4/10

11:35 pm-11:35 am

1 stop10h 00m

$578

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Wed 3/18

12:20 pm-9:00 pm

1 stop10h 40m

Salt Lake City

Sun 3/22

11:35 pm-11:40 am

1 stop10h 05m

$638

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Mon 4/6

6:40 pm-12:52 pm

1 stop20h 12m

Salt Lake City

Sun 4/12

7:35 am-9:38 pm

2 stops36h 03m

$709
Cheapest one-way

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Wed 4/8

5:28 pm-12:52 pm

1 stop21h 24m

$171
Quickest one-way

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Sat 3/28

5:50 pm-11:00 pm

1 stop7h 10m

$260

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Sun 3/29

7:26 pm-9:00 am

3 stops39h 34m

$271

IslipSalt Lake City

ISP - SLC

ISPSLC

Islip Long Island

Sun 3/29

5:08 pm-9:00 am

2 stops41h 52m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Islip to Salt Lake City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Salt Lake City in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Islip, New York-Salt Lake City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Salt Lake City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Salt Lake City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Salt Lake City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Salt Lake City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Islip to Salt Lake City

Have a flexible travel schedule? Discover the best time to fly to Salt Lake City 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 Salt Lake City

What is the cheapest month to book a flight from Islip, New York to Salt Lake City?

Currently, July is the cheapest month in which you can book a flight from Islip, New York to Salt Lake City (average of $63). Flying from Islip, New York to Salt Lake City in February is currently the most expensive (average of $230). 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.

Reviews of airlines servicing Salt Lake City

Get insights into the airlines that provide service to Salt Lake City. 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 Salt Lake City. Reviews last updated March 8, 2026.
Peruse reviews from past customers who have flown with Southwest from Islip to Salt Lake City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,315 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Southwest
8.0
Very good
4,315 reviews
Southwest
8.0
Very good
4,315 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Related info for your journey

Find useful and relevant information for your journey from Islip to Salt Lake City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Islip, New York to Salt Lake City?

    Southwest can get you from Islip, New York to Salt Lake City in just under 8h 10m. Your travel time can differ by up to . Islip, New York and Salt Lake City are separated by a distance of 2016 mi.

  • What is the cheapest airline to fly from Islip, New York to Salt Lake City round-trip?

    According to our current data, Southwest ($402), offers the cheapest pricing from Islip, New York to Salt Lake City.

  • Can I find deals for flights from Islip to Salt Lake City that include hotel bookings?

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

  • How can I find direct flights from Islip to Salt Lake City?

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

  • Can I find deals for business class flights from Islip to Salt Lake City?

    Yes. Cheapflights offers flight deals from Islip to Salt Lake City 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 Salt Lake City?

    Currently, July is the cheapest month in which you can book a flight from Islip, New York to Salt Lake City (average of $63). Flying from Islip, New York to Salt Lake City in February is currently the most expensive (average of $230). 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

Traveling to a place near Salt Lake City?

Book flights to Salt Lake City if you plan to visit one of these locations
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Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Islip to Salt Lake City

Discover the top airline that operate flights from Islip to Salt Lake City. 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 March 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$402Average$594FlexibilityNo cancel feeOn-time63%

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