Title: $2,986 Cheap flights from Islip to Shannon (ISP to SNN) - Expedia.com

![Tete de pont military bridgehead defence. Excellent example at village of Shannonbridge on River Shannon, County Offaly, Ireland](https://images.trvl-media.com/place/3229/ddcf2883-7793-4cf7-8ef7-18f182599e6a.jpg?impolicy=fcrop&w=1200&h=500&q=medium)

![](https://images.trvl-media.com/place/3229/ddcf2883-7793-4cf7-8ef7-18f182599e6a.jpg?impolicy=fcrop&w=1200&h=500&q=medium)

# $2,986 Cheap Flights from Islip (ISP) to Shannon (SNN)

[View $2,986 flight on Wed, Jul 29, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:ISP,to:SNN,departure:7/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2985.60&airProductToken=AQqrAQoyCMJsEgM4NDcYyHwgzHAo2NWTAzCI15MDOEJAAFgBaghGVUxMRkxFWHIIWTFOMEM5UzEKMwjCbBIDMzUyGMxwIMGTASj425MDMK7dkwM4QkABWAFqCEZVTExGTEVYcghZMU4wQzlTMQpACMmEARIENjA1OBjBkwEgsmso5uGTAzDJ5JMDOFlAAVgBaghGVUxMRkxFWHIIWTFOMEM5UzF6CQjFkgESAzEzNBIKCAEQARgBKgJJQhgBIgQIARABKAIoBCgGMAE) 

## Popular airlines from MacArthur Airport (ISP) to Shannon Airport (SNN)

- ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg)  
American Airlines  
[](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:SNN,departure:4/1/2026TANYT&leg2=from:SNN,to:ISP,departure:4/8/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}])
- ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg)  
United  
[](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:SNN,departure:4/1/2026TANYT&leg2=from:SNN,to:ISP,departure:4/8/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}])
- ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg)  
Southwest Airlines  
[](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:SNN,departure:4/1/2026TANYT&leg2=from:SNN,to:ISP,departure:4/8/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}])
- ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg)  
Delta  
[](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:SNN,departure:4/1/2026TANYT&leg2=from:SNN,to:ISP,departure:4/8/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}])
- ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg)  
Frontier Airlines  
[](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:SNN,departure:4/1/2026TANYT&leg2=from:SNN,to:ISP,departure:4/8/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}])
- ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg)  
JetBlue Airways  
[](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:SNN,departure:4/1/2026TANYT&leg2=from:SNN,to:ISP,departure:4/8/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}])
- ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg)  
Alaska Airlines  
[](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:SNN,departure:4/1/2026TANYT&leg2=from:SNN,to:ISP,departure:4/8/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}])

## Cheap Flights from Islip to Shannon (ISP-SNN)

Prices were available within the past 7 days and start at $2,986 for one-way flights and $5,350 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All deals

One way

Roundtrip

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Sun, Sep 6 - Wed, Sep 9

ISP

Islip

SNN

Shannon

$5,350

Roundtrip

found 6 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:SNN,departure:9/6/2026TANYT&leg2=from:SNN,to:ISP,departure:9/9/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:5349.13&airProductToken=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)

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Tue, Apr 28 - Tue, May 5

ISP

Islip

SNN

Shannon

$5,388

Roundtrip

found 4 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:SNN,departure:4/28/2026TANYT&leg2=from:SNN,to:ISP,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:5387.15&airProductToken=AQqrAQoyCMJsEgM1NDcYyHwgzHAohcuLAzC1zIsDOEJAAFgBaghGVUxMRkxFWHIIWTFOMEMwUzEKMwjCbBIDNTUyGMxwIMGTASj40IsDMK_SiwM4QkABWAFqCEZVTExGTEVYcghZMU4wQzBTMQpACMmEARIENjA1OBjBkwEgsmso5taLAzDJ2YsDOFlAAVgBaghGVUxMRkxFWHIIWTFOMEMwUzF6CQjFkgESAzEzNAqsAQpACMmEARIENjA1NxiyayDBkwEo3ZWMAzD8mIwDOFlAAFgBaghGVUxMRkxFWHIIWTFOMEMwUzF6CQjFkgESAzEzNQo0CMJsEgQxMTUxGMGTASDMcCiem4wDMN2cjAM4QkABWAFqCEZVTExGTEVYcghZMU4wQzBTMQoyCMJsEgM1NDYYzHAgyHworqOMAzDOpIwDOEJAAVgBaghGVUxMRkxFWHIIWTFOMEMwUzESCggBEAEYASoCSUIYASIECAEQASgCKAQoBjAB)

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Tue, Apr 28 - Tue, May 5

ISP

Islip

SNN

Shannon

$5,390

Roundtrip

found 4 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:SNN,departure:4/28/2026TANYT&leg2=from:SNN,to:ISP,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:5389.59&airProductToken=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)

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Sun, Sep 6 - Wed, Sep 9

ISP

Islip

SNN

Shannon

$5,426

Roundtrip

found 6 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:SNN,departure:9/6/2026TANYT&leg2=from:SNN,to:ISP,departure:9/9/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:5425.77&airProductToken=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)

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Tue, Apr 28 - Tue, May 5

ISP

Islip

SNN

Shannon

$5,428

Roundtrip

found 4 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:SNN,departure:4/28/2026TANYT&leg2=from:SNN,to:ISP,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:5427.91&airProductToken=AQqsAQoyCMJsEgM1NDcYyHwgzHAohcuLAzC1zIsDOEJAAFgBaghGVUxMRkxFWHIIWTFOMEMwUzEKNAjCbBIEMjE1MhjMcCDBkwEoi9OLAzDE1IsDOEJAAVgBaghGVUxMRkxFWHIIWTFOMEMwUzEKQAjJhAESBDYwNTgYwZMBILJrKObWiwMwydmLAzhZQAFYAWoIRlVMTEZMRVhyCFkxTjBDMFMxegkIxZIBEgMxMzQKqwEKQAjJhAESBDYwNTcYsmsgwZMBKN2VjAMw_JiMAzhZQABYAWoIRlVMTEZMRVhyCFkxTjBDMFMxegkIxZIBEgMxMzUKMwjCbBIDMzY5GMGTASDlWij0mYwDMMSbjAM4QkABWAFqCEZVTExGTEVYcghZMU4wQzBTMQoyCMJsEgM1MTQY5VogyHwo46SMAzCLpowDOEJAAVgBaghGVUxMRkxFWHIIWTFOMEMwUzESCggBEAEYASoCSUIYASIECAEQASgCKAQoBjAB)

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Tue, Apr 28 - Tue, May 5

ISP

Islip

SNN

Shannon

$5,431

Roundtrip

found 4 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:SNN,departure:4/28/2026TANYT&leg2=from:SNN,to:ISP,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:5430.56&airProductToken=AQqrAQoyCMJsEgM1NDcYyHwgzHAohcuLAzC1zIsDOEJAAFgBaghGVUxMRkxFWHIIWTFOMEMwUzEKMwjCbBIDNTUyGMxwIMGTASj40IsDMK_SiwM4QkABWAFqCEZVTExGTEVYcghZMU4wQzBTMQpACMmEARIENjA1OBjBkwEgsmso5taLAzDJ2YsDOFlAAVgBaghGVUxMRkxFWHIIWTFOMEMwUzF6CQjFkgESAzEzNAqrAQpACMmEARIENjA1NxiyayDBkwEo3ZWMAzD8mIwDOFlAAFgBaghGVUxMRkxFWHIIWTFOMEMwUzF6CQjFkgESAzEzNQozCMJsEgM4NTEYwZMBIMxwKLqgjAMw-aGMAzhCQAFYAWoIRlVMTEZMRVhyCFkxTjBDMFMxCjIIwmwSAzU0NhjMcCDIfCiuo4wDMM6kjAM4QkABWAFqCEZVTExGTEVYcghZMU4wQzBTMRIKCAEQARgBKgJJQhgBIgQIARABKAIoBCgGMAE)

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Tue, Apr 28 - Tue, May 5

ISP

Islip

SNN

Shannon

$5,436

Roundtrip

found 4 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:SNN,departure:4/28/2026TANYT&leg2=from:SNN,to:ISP,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:5435.04&airProductToken=AQqsAQoyCMJsEgM1MTMYyHwg5Voo4MyLAzCVzosDOEJAAFgBaghGVUxMRkxFWHIIWTFOMEMwUzEKNAjCbBIEMTA3MBjlWiDBkwEoqdKLAzDn04sDOEJAAVgBaghGVUxMRkxFWHIIWTFOMEMwUzEKQAjJhAESBDYwNTgYwZMBILJrKObWiwMwydmLAzhZQAFYAWoIRlVMTEZMRVhyCFkxTjBDMFMxegkIxZIBEgMxMzQKrAEKQAjJhAESBDYwNTcYsmsgwZMBKN2VjAMw_JiMAzhZQABYAWoIRlVMTEZMRVhyCFkxTjBDMFMxegkIxZIBEgMxMzUKNAjCbBIEMjI2ORjBkwEg5Voo9KOMAzDCpYwDOEJAAVgBaghGVUxMRkxFWHIIWTFOMEMwUzEKMgjCbBIDNTE0GOVaIMh8KIOwjAMwq7GMAzhCQAFYAWoIRlVMTEZMRVhyCFkxTjBDMFMxEgoIARABGAEqAklCGAEiBAgBEAEoAigEKAYwAQ)

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Fri, May 1 - Fri, May 8

ISP

Islip

SNN

Shannon

$5,438

Roundtrip

found 23 hours ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:SNN,departure:5/1/2026TANYT&leg2=from:SNN,to:ISP,departure:5/8/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:5437.05&airProductToken=AQqsAQoyCMJsEgM1MTMYyHwg5VoowO6LAzD174sDOEJAAFgBaghGVUxMRkxFWHIIWTFOMEMwUzEKNAjCbBIEMTA3MBjlWiDBkwEoifSLAzDH9YsDOEJAAVgBaghGVUxMRkxFWHIIWTFOMEMwUzEKQAjJhAESBDYwNTgYwZMBILJrKMb4iwMwqfuLAzhZQAFYAWoIRlVMTEZMRVhyCFkxTjBDMFMxegkIxZIBEgMxMzQKrAEKQAjJhAESBDYwNTcYsmsgwZMBKL23jAMw3LqMAzhZQABYAWoIRlVMTEZMRVhyCFkxTjBDMFMxegkIxZIBEgMxMzUKNAjCbBIEMTE1MRjBkwEgzHAo_ryMAzC9vowDOEJAAVgBaghGVUxMRkxFWHIIWTFOMEMwUzEKMgjCbBIDNTQ2GMxwIMh8KI7FjAMwrsaMAzhCQAFYAWoIRlVMTEZMRVhyCFkxTjBDMFMxEgoIARABGAEqAklCGAEiBAgBEAEoAigEKAYwAQ)

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Fri, May 1 - Fri, May 8

ISP

Islip

SNN

Shannon

$5,440

Roundtrip

found 23 hours ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:SNN,departure:5/1/2026TANYT&leg2=from:SNN,to:ISP,departure:5/8/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:5439.49&airProductToken=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)

![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)

Tue, Apr 28 - Tue, May 5

ISP

Islip

SNN

Shannon

$5,469

Roundtrip

found 4 days ago

[](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:SNN,departure:4/28/2026TANYT&leg2=from:SNN,to:ISP,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:5468.88&airProductToken=AQqsAQoyCMJsEgM1NDcYyHwgzHAohcuLAzC1zIsDOEJAAFgBaghGVUxMRkxFWHIIWTFOMEMwUzEKNAjCbBIEMjA1MhjMcCDBkwEoxtWLAzCC14sDOEJAAVgBaghGVUxMRkxFWHIIWTFOMEMwUzEKQAjJhAESBDYwNTgYwZMBILJrKIbiiwMw6eSLAzhZQAFYAWoIRlVMTEZMRVhyCFkxTjBDMFMxegkIxZIBEgMxMzQKrAEKQAjJhAESBDYwNTcYsmsgwZMBKN2VjAMw_JiMAzhZQABYAWoIRlVMTEZMRVhyCFkxTjBDMFMxegkIxZIBEgMxMzUKNAjCbBIEMTE1MRjBkwEgzHAonpuMAzDdnIwDOEJAAVgBaghGVUxMRkxFWHIIWTFOMEMwUzEKMgjCbBIDNTQ2GMxwIMh8KK6jjAMwzqSMAzhCQAFYAWoIRlVMTEZMRVhyCFkxTjBDMFMxEgoIARABGAEqAklCGAEiBAgBEAEoAigEKAYwAQ)

## Frequently asked questions

### How much does a flight from Islip, NY (ISP-MacArthur) to Shannon (SNN) cost?

### What is the cheapest month to fly from Islip, NY (ISP-MacArthur) to Shannon (SNN)?

### Which airlines fly direct from Islip, NY (ISP-MacArthur) to Shannon (SNN)?

### What is the cheapest airline that flies from Islip, NY (ISP-MacArthur) to Shannon (SNN)?

### How do I find cheap flights from Islip, NY (ISP-MacArthur) to Shannon (SNN)?

### What is the best time to fly from Islip, NY (ISP-MacArthur) to Shannon (SNN)?

### What is the earliest flight from Islip, NY (ISP-MacArthur) to Shannon (SNN)?

### Can you fly business or first class from Islip, NY (ISP-MacArthur) to Shannon (SNN)?

### How do I earn miles on a Islip, NY (ISP-MacArthur) to Shannon (SNN) flight with Expedia?

### Is it cheaper to buy a plane ticket from Islip, NY (ISP-MacArthur) to Shannon (SNN) at the last minute?

### Is it cheaper to book a Islip, NY (ISP-MacArthur) to Shannon (SNN) flight and hotel package?

### Can I cancel or change the date of my flight from Islip, NY (ISP-MacArthur) to Shannon (SNN)?

## Travel information

| Origin airport      | MacArthur |
| ------------------- | --------- |
| Destination airport | Shannon   |
| Roundtrip price     | $5,349    |
| Distance            | 3039 mi   |

## Book with confidence

# Islip to Shannon Flights

The cheapest times to fly from Islip to Shannon

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Islip to Shannon are during the month of September. You can find some of the cheapest flights from Islip to Shannon with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Islip to Shannon

Sunday is one of the best days to book for cheap flights from Islip to Shannon: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Islip to Shannon

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Islip to Shannon in 2026\. You can also book with separate airlines for your outbound and return journeys, from $2,986 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference\*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Islip to Shannon flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's [vacation packages](https://www.expedia.com/package-deals). Bundling together your Islip to Shannon airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

\*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages.

\*Flight schedules are subject to change.

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