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Des Moines

$832+ Cheap flights from Islip, NY to Des Moines (ISP - DSM)

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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — DSM
Apr 16 — Apr 231
Thu 4/16
Thu 4/23
1 adult, Economy
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Cheap flight deals from Islip to Des Moines

Cheapest flights from Islip to Des Moines
Explore the most affordable flight options available from Islip to Des Moines. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 17, 2026.

This Southwest deal was found by Cheapflights users on 3/15. 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.
Mon 3/302:00 pm
ISP
-
DSM
2 stops10h 15m
Southwest
Fri 4/35:35 am
DSM
-
ISP
2 stops10h 45m
Southwest
Deal found 3/15$832

Find flight deals from Islip to Des Moines

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Des Moines (DSM). 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 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$832
(Southwest)

Popular in

January

Cheapest in

September

Average price

$421
Provider with most accurate pricing for Islip Long Island-Des Moines flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Des Moines flights.
Search Deals
From Islip Long Island to Des Moines
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Des Moines 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 17, 2026.
Use the filters below to find and compare flights from Islip to Des Moines that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

IslipDes Moines

ISP - DSM

ISPDSM

Islip Long Island

Mon 3/30

2:00 pm-11:15 pm

2 stops10h 15m

Des Moines

Fri 4/3

5:35 am-5:20 pm

2 stops10h 45m

$832

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Islip, New York-Des Moines 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-Des Moines flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Des Moines flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Des Moines 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-Des Moines 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 Des Moines

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

What is the cheapest month to book a flight from Islip, New York to Des Moines?

Currently, August is the cheapest month in which you can book a flight from Islip, New York to Des Moines (average of $79). Flying from Islip, New York to Des Moines in January is currently the most expensive (average of $338). 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.

Related info for your journey

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

    Departing from Islip, New York to Des Moines will take you 10h 15m. Islip, New York and Des Moines are separated by a distance of 1067 mi.

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

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

  • How can I find direct flights from Islip to Des Moines?

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

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

    Yes. Cheapflights offers flight deals from Islip to Des Moines 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 Des Moines?

    Currently, August is the cheapest month in which you can book a flight from Islip, New York to Des Moines (average of $79). Flying from Islip, New York to Des Moines in January is currently the most expensive (average of $338). 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 Des Moines?

Book flights to Des Moines if you plan to visit one of these locations
Altoona
Johnston
Ankeny
Ames
Boone
Clive
West Des Moines

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