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Islip

$229+ Cheap flights from Grand Rapids to Islip, NY (GRR - ISP)

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 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
GRR — ISP
Aug 6 — Aug 131
Thu 8/6
Thu 8/13
1 adult, Economy
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Cheap flight deals from Grand Rapids to Islip

Cheapest flights from Grand Rapids to Islip
Explore the most affordable flight options available from Grand Rapids to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 7, 2026.

This Booking.com deal was found by Cheapflights users on 7/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/289:13 pm
GRR
-
ISP
1 stop21h 01m
Frontier
Sun 8/307:09 pm
ISP
-
GRR
1 stop25h 19m
Frontier
Deal found 7/6$252
This Southwest deal was found by Cheapflights users on 7/5. 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.
Thu 8/275:45 am
GRR
-
ISP
1 stop3h 55m
Southwest
Mon 8/314:05 pm
ISP
-
GRR
1 stop3h 50m
Southwest
Deal found 7/5$299
This Southwest deal was found by Cheapflights users on 7/5. 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.
Sun 9/206:00 am
GRR
-
ISP
1 stop3h 55m
Southwest
Sun 9/276:20 am
ISP
-
GRR
2 stops6h 45m
Southwest
Deal found 7/5$304
This Southwest deal was found by Cheapflights users on 7/6. 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 8/285:45 am
GRR
-
ISP
1 stop3h 55m
Southwest
Sun 8/306:20 am
ISP
-
GRR
2 stops6h 45m
Southwest
Deal found 7/6$326
This Southwest deal was found by Cheapflights users on 7/6. 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.
Thu 8/135:45 am
GRR
-
ISP
1 stop3h 55m
Southwest
Sun 8/166:20 am
ISP
-
GRR
2 stops6h 45m
Southwest
Deal found 7/6$334

Find flight deals from Grand Rapids to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Grand Rapids (GRR) to Islip (ISP). 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 July 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$252
(Booking.com)

One-way from

$229
(Southwest)

Popular in

December

Cheapest in

October

Average price

$294
Provider with most accurate pricing for Grand Rapids Gerald R. Ford Intl-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Grand Rapids Gerald R. Ford Intl-Islip Long Island flights.
Search Deals
From Grand Rapids Gerald R. Ford Intl to Islip Long Island
Search Deals
One-way flight from Grand Rapids Gerald R. Ford Intl to Islip Long Island
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Grand Rapids to Islip 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 July 7, 2026.
Use the filters below to find and compare flights from Grand Rapids to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Grand RapidsIslip

GRR - ISP

GRRISP

Grand Rapids Gerald R. Ford Intl

Thu 8/27

3:30 pm-10:05 pm

1 stop6h 35m

Islip Long Island

Mon 8/31

6:10 am-12:15 pm

2 stops6h 05m

$304
Quickest round-trip

Grand RapidsIslip

GRR - ISP

GRRISP

Grand Rapids Gerald R. Ford Intl

Sun 9/20

6:00 am-9:55 am

1 stop3h 55m

Islip Long Island

Sun 9/27

6:20 am-1:05 pm

2 stops6h 45m

$304

Grand RapidsIslip

GRR - ISP

GRRISP

Grand Rapids Gerald R. Ford Intl

Fri 8/28

5:45 am-9:40 am

1 stop3h 55m

Islip Long Island

Sun 8/30

6:20 am-1:05 pm

2 stops6h 45m

$326

Grand RapidsIslip

GRR - ISP

GRRISP

Grand Rapids Gerald R. Ford Intl

Thu 8/13

5:45 am-9:40 am

1 stop3h 55m

Islip Long Island

Sun 8/16

6:20 am-1:05 pm

2 stops6h 45m

$334
Cheapest one-way
Quickest one-way

Grand RapidsIslip

GRR - ISP

GRRISP

Grand Rapids Gerald R. Ford Intl

Sun 7/19

5:30 am-11:45 am

1 stop6h 15m

$229

Grand RapidsIslip

GRR - ISP

GRRISP

Grand Rapids Gerald R. Ford Intl

Mon 7/20

2:57 pm-4:47 pm

2 stops25h 50m

$234

Grand RapidsIslip

GRR - ISP

GRRISP

Grand Rapids Gerald R. Ford Intl

Mon 7/20

5:25 am-11:50 am

1 stop6h 25m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Sorted by cheapest first

Compare providers for flights from Grand Rapids to Islip

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 Grand Rapids to Islip in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 Grand Rapids-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Grand Rapids-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Grand Rapids-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Grand Rapids-Islip, New York 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 Grand Rapids-Islip, New York 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 Grand Rapids to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Grand Rapids 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.

Related info for your journey

Find useful and relevant information for your journey from Grand Rapids to Islip. 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 Grand Rapids to Islip, New York?

    A quick flight from Grand Rapids to Islip, New York can take about 6h 35m. Southwest provides one of the quickest options available for as low as $304. The distance between Grand Rapids and Islip, New York is about 655 mi.

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

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

  • How can I find direct flights from Grand Rapids to Islip?

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

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

    Yes. Cheapflights offers flight deals from Grand Rapids to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
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