Title: $375 Cheap flights from Madison to Islip (MSN to ISP) - Expedia.com ![Aerial South Shore Long Island During Sunset](https://images.trvl-media.com/place/1638/af7d1356-1b17-43db-b716-450cf420d6e9.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/1638/af7d1356-1b17-43db-b716-450cf420d6e9.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $375 Cheap Flights from Madison (MSN) to Islip (ISP) [View $375 flight on Thu, Mar 26, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:MSN,to:ISP,departure:3/26/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:374.58&airProductToken=AQpgCi4IxnISBDE1OTIYzGwgzHAo5NaIAzCY2IgDOEVAAFgBagRQQ18xcgdFMTRQWFA1Ci4IxnISBDQ1MzIYzHAgyHwozN-IAzDv4IgDOEVAAFgBagRQQ18xcgdFMTRQWFA1EgoIARABGAEqAkY5GAEiBAgBEAEoAigDMA0) ## Popular airlines from Dane County Regional Airport (MSN) to MacArthur Airport (ISP) - ![](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:MSN,to:ISP,departure:3/20/2026TANYT&leg2=from:ISP,to:MSN,departure:3/27/2026TANYT&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:MSN,to:ISP,departure:3/20/2026TANYT&leg2=from:ISP,to:MSN,departure:3/27/2026TANYT&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:MSN,to:ISP,departure:3/20/2026TANYT&leg2=from:ISP,to:MSN,departure:3/27/2026TANYT&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:MSN,to:ISP,departure:3/20/2026TANYT&leg2=from:ISP,to:MSN,departure:3/27/2026TANYT&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:MSN,to:ISP,departure:3/20/2026TANYT&leg2=from:ISP,to:MSN,departure:3/27/2026TANYT&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:MSN,to:ISP,departure:3/20/2026TANYT&leg2=from:ISP,to:MSN,departure:3/27/2026TANYT&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:MSN,to:ISP,departure:3/20/2026TANYT&leg2=from:ISP,to:MSN,departure:3/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Cheap Flights from Madison to Islip (MSN-ISP) Prices were available within the past 7 days and start at $375 for one-way flights and $888 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Thu, Mar 26 - Sun, Mar 29 MSN Madison ISP Islip $888 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/26/2026TANYT&leg2=from:ISP,to:MSN,departure:3/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:887.98&airProductToken=AQpCCh8IxnISBDE1OTIYzGwgzHAo5NaIAzCY2IgDOE1AAFgBCh8IxnISBDQ1MzIYzHAgyHwozN-IAzDv4IgDOE1AAVgBCkIKHwjGchIEMTIzNxjIfCDMcCi0-YgDMOz6iAM4QkAAWAEKHwjGchIEMTU5MRjMcCDMbCj9gIkDMMKCiQM4QkABWAESCggBEAEYASoCRjkYASIECAEQASgEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Thu, Mar 26 - Mon, Apr 13 MSN Madison ISP Islip $900 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/26/2026TANYT&leg2=from:ISP,to:MSN,departure:4/13/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:899.40&airProductToken=AQpoCiEI1YIBEgQzNDEyGMxsIMSNASj50ogDMIjUiAM4S0AAWAEKIQjVggESAzU3NxjEjQEgwZMBKJvWiAMw5NaIAzhLQAFYAQogCLmWARIDMjE3GMGTASDIfCje14gDMLTYiAM4QkABWAEKZwogCLmWARIDMjEyGMh8IMGTASjnnooDMLyfigM4QkAAWAEKIQjVggESBDEwMTUYwZMBIK4cKPiiigMwrqSKAzhLQAFYAQogCNWCARIEMjEwMRiuHCDMbCihpYoDMOGligM4S0ABWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Mar 25 - Mon, Apr 13 MSN Madison ISP Islip $928 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/25/2026TANYT&leg2=from:ISP,to:MSN,departure:4/13/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:927.41&airProductToken=AQppCiEI1YIBEgQzNDEyGMxsIMSNASjZx4gDMOjIiAM4VEAAWAEKIgjVggESBDI2MDMYxI0BIMGTASjvyYgDMLjKiAM4VEABWAEKIAi5lgESAzIxNxjBkwEgyHwovsyIAzCUzYgDOFNAAVgBCmcKIAi5lgESAzIxMhjIfCDBkwEo556KAzC8n4oDOEJAAFgBCiEI1YIBEgQxMDE1GMGTASCuHCj4oooDMK6kigM4S0ABWAEKIAjVggESBDIxMDEYrhwgzGwooaWKAzDhpYoDOEtAAVgBEgoIARABGAEqAlVBGAEiBAgBEAEoBDAB) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Mon, Mar 9 - Fri, Mar 13 MSN Madison ISP Islip $1,181 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/9/2026TANYT&leg2=from:ISP,to:MSN,departure:3/13/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1180.41&airProductToken=AQqOAQovCMGCARIENTM5MBjMbCBDKNSThwMw2pSHAzhTQABYAWoETUFJTnIIUzBBSFpOTTEKMAjBggESBDM0MjUYQyDBkwEoo5aHAzCEl4cDOFNAAVgBagRNQUlOcghTMEFIWk5NMQopCLmWARIDMjE3GMGTASDIfCi-mIcDMJSZhwM4S0ABWAFqAkVScgNLSVAKkgEKKQi5lgESAzIxMhjIfCDBkwEoh8KHAzDcwocDOFNAAFgBagJFUnIDU0lQCjIIwYIBEgQyMDMzGMGTASDimgEoysWHAzDuxocDOFNAAVgBagRNQUlOcghTMEFIWk5NMQoxCMGCARIEMzI2NRjimgEgzGwo8ceHAzDzyIcDOFNAAVgBagRNQUlOcghTMEFIWk5NMRIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, Mar 27 - Sun, Mar 29 MSN Madison ISP Islip $1,280 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:MSN,departure:3/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1279.41&airProductToken=AQqQAQowCMGCARIENDU5NBjMbCDLASiM34gDMJbgiAM4VkAAWAFqBE1BSU5yCFYwRldaTk4xCjEIwYIBEgQ0NTUzGMsBIMGTASia4YgDMOThiAM4VkABWAFqBE1BSU5yCFYwRldaTk4xCikIuZYBEgMyMTcYwZMBIMh8KP7iiAMw1OOIAzhCQAFYAWoCRVJyA0JJUAqOAQopCLmWARIDMjEyGMh8IMGTASiH9ogDMNz2iAM4U0AAWAFqAkVScgNTSVAKMAjBggESBDQzOTEYwZMBIEMow_iIAzC5-YgDOEdAAVgBagRNQUlOcghHN0FKWk5NMQovCMGCARIENTQ5NBhDIMxsKID7iAMwlPyIAzhHQAFYAWoETUFJTnIIRzBGV1pOTjESCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAB) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, Mar 27 - Sun, Mar 29 MSN Madison ISP Islip $1,282 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:MSN,departure:3/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1281.40&airProductToken=AQqQAQowCMGCARIENDU5NBjMbCDLASiM34gDMJbgiAM4VkAAWAFqBE1BSU5yCFYwRldaTk4xCjEIwYIBEgQ0NTUzGMsBIMGTASia4YgDMOThiAM4VkABWAFqBE1BSU5yCFYwRldaTk4xCikIuZYBEgMyMTcYwZMBIMh8KP7iiAMw1OOIAzhCQAFYAWoCRVJyA0JJUAqQAQopCLmWARIDMjEyGMh8IMGTASiH9ogDMNz2iAM4U0AAWAFqAkVScgNTSVAKMQjBggESBDQ0MDUYwZMBIMsBKMH3iAMwkviIAzhRQAFYAWoETUFJTnIIUTdBSFpOTTEKMAjBggESBDQ1OTcYywEgzGwonvuIAzC-_IgDOE5AAVgBagRNQUlOcghOMEZXWk5NMRIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, Mar 27 - Sun, Mar 29 MSN Madison ISP Islip $1,303 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:MSN,departure:3/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1302.41&airProductToken=AQqQAQowCMGCARIENDU5NBjMbCDLASiM34gDMJbgiAM4VkAAWAFqBE1BSU5yCFYwRldaTk4xCjEIwYIBEgQ0NTUzGMsBIMGTASia4YgDMOThiAM4VkABWAFqBE1BSU5yCFYwRldaTk4xCikIuZYBEgMyMTcYwZMBIMh8KP7iiAMw1OOIAzhCQAFYAWoCRVJyA0JJUAqQAQopCLmWARIDMjEyGMh8IMGTASiH9ogDMNz2iAM4U0AAWAFqAkVScgNTSVAKMQjBggESBDEzODUYwZMBIK4cKLT6iAMw9vuIAzhLQAFYAWoETUFJTnIISzBBV1pOTjEKMAjBggESBDQ5NTMYrhwgzGwoqPyIAzDm_IgDOEtAAVgBagRNQUlOcghLMEFXWk5OMRIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Mon, Mar 9 - Fri, Mar 13 MSN Madison ISP Islip $1,337 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/9/2026TANYT&leg2=from:ISP,to:MSN,departure:3/13/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1336.40&airProductToken=AQqQAQowCMGCARIENDU5NBjMbCDLASjMlIcDMNaVhwM4U0AAWAFqBE1BSU5yCFMwQUhaTk0xCjEIwYIBEgQ0NTUzGMsBIMGTASjalocDMKSXhwM4U0ABWAFqBE1BSU5yCFMwQUhaTk0xCikIuZYBEgMyMTcYwZMBIMh8KL6YhwMwlJmHAzhLQAFYAWoCRVJyA0tJUAqOAQopCLmWARIDMjEyGMh8IMGTASiHwocDMNzChwM4U0AAWAFqAkVScgNTSVAKMAjBggESBDE2MDYYwZMBIEMorMWHAzCYxocDOFZAAVgBagRNQUlOcghWMEFXWk5OMQovCMGCARIENTQ5NBhDIMxsKIDHhwMwlMiHAzhWQAFYAWoETUFJTnIIVjBBV1pOTjESCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Fri, Mar 27 - Sun, Mar 29 MSN Madison ISP Islip $1,345 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:MSN,departure:3/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1344.41&airProductToken=AQqaAQo1CMSYARIEMTI3NBjMbCDMfCiU3ogDMNneiAM4S0AAWAFqCU1BSU5DTEFTQ3IIS0FWUUEwTUwKNgjEmAESBDI2NTUYzHwgwZMBKJjgiAMwv-GIAzhLQAFYAWoJTUFJTkNMQVNDcghLQVZRQTBNTAopCLmWARIDMjE3GMGTASDIfCj-4ogDMNTjiAM4QkABWAFqAkVScgNCSVAKnAEKKQi5lgESAzIxMhjIfCDBkwEoh_aIAzDc9ogDOFNAAFgBagJFUnIDU0lQCjcIxJgBEgQxNDMyGMGTASDjtAEopvmIAzCy-ogDOEtAAVgBaglNQUlOQ0xBU0NyCEtBVlFBME1MCjYIxJgBEgQxMDk2GOO0ASDMbCiS-4gDMN77iAM4S0ABWAFqCU1BSU5DTEFTQ3IIS0FWUUEwTUwSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, Mar 27 - Sun, Mar 29 MSN Madison ISP Islip $1,372 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:MSN,departure:3/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1371.40&airProductToken=AQqQAQowCMGCARIENDU5NBjMbCDLASiM34gDMJbgiAM4VkAAWAFqBE1BSU5yCFYwRldaTk4xCjEIwYIBEgQ0NTUzGMsBIMGTASia4YgDMOThiAM4VkABWAFqBE1BSU5yCFYwRldaTk4xCikIuZYBEgMyMTcYwZMBIMh8KP7iiAMw1OOIAzhCQAFYAWoCRVJyA0JJUAqQAQopCLmWARIDMjEyGMh8IMGTASiH9ogDMNz2iAM4U0AAWAFqAkVScgNTSVAKMQjBggESBDM3MTEYwZMBIK4cKKL5iAMw5vqIAzhNQAFYAWoETUFJTnIITTNBSFpOTjEKMAjBggESBDM1OTgYrhwgzGwojPuIAzDN-4gDOExAAVgBagRNQUlOcghMMEZXWk5OMRIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Mon, Mar 9 - Fri, Mar 13 MSN Madison ISP Islip $1,399 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/9/2026TANYT&leg2=from:ISP,to:MSN,departure:3/13/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1398.41&airProductToken=AQqQAQowCMGCARIENDU5NBjMbCDLASjMlIcDMNaVhwM4U0AAWAFqBE1BSU5yCFMwQUhaTk0xCjEIwYIBEgQ0NTUzGMsBIMGTASjalocDMKSXhwM4U0ABWAFqBE1BSU5yCFMwQUhaTk0xCikIuZYBEgMyMTcYwZMBIMh8KL6YhwMwlJmHAzhLQAFYAWoCRVJyA0tJUAqQAQopCLmWARIDMjEyGMh8IMGTASiHwocDMNzChwM4U0AAWAFqAkVScgNTSVAKMQjBggESBDEyNDUYwZMBIK4cKMvFhwMwkMeHAzhLQAFYAWoETUFJTnIISzBBV1pOTjEKMAjBggESBDQ5NTMYrhwgzGwoqMiHAzDmyIcDOEtAAVgBagRNQUlOcghLMEFXWk5OMRIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAE) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Fri, Mar 27 - Sun, Mar 29 MSN Madison ISP Islip $1,430 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:MSN,departure:3/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1429.41&airProductToken=AQqaAQo1CMSYARIEMTI3NBjMbCDMfCiU3ogDMNneiAM4S0AAWAFqCU1BSU5DTEFTQ3IIS0FWUUEwTUwKNgjEmAESBDI2NTUYzHwgwZMBKJjgiAMwv-GIAzhLQAFYAWoJTUFJTkNMQVNDcghLQVZRQTBNTAopCLmWARIDMjE3GMGTASDIfCj-4ogDMNTjiAM4QkABWAFqAkVScgNCSVAKmgEKKQi5lgESAzIxMhjIfCDBkwEoh_aIAzDc9ogDOFNAAFgBagJFUnIDU0lQCjYIxJgBEgQ1NzQ4GMGTASDLASi894gDMI74iAM4UUABWAFqCU1BSU5DTEFTQ3IIUUFWR0EwTVEKNQjEmAESBDU2MTEYywEgzGwo3vmIAzD8-ogDOFFAAVgBaglNQUlOQ0xBU0NyCFFBVkdBME1REgoIARABGAEqAkRMGAEiBAgBEAEoAigDKAQwAQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Mon, Mar 9 - Fri, Mar 13 MSN Madison ISP Islip $1,511 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/9/2026TANYT&leg2=from:ISP,to:MSN,departure:3/13/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1510.40&airProductToken=AQqaAQo1CMSYARIENTcxORjMbCDLASi9lIcDMMKVhwM4S0AAWAFqCU1BSU5DTEFTQ3IIS0E3UUEwTVEKNgjEmAESBDU3MzkYywEgwZMBKPiWhwMww5eHAzhLQAFYAWoJTUFJTkNMQVNDcghLQTdRQTBNUQopCLmWARIDMjE3GMGTASDIfCi-mIcDMJSZhwM4S0ABWAFqAkVScgNLSVAKlQEKKQi5lgESAzIxMhjIfCDBkwEoh8KHAzDcwocDOFNAAFgBagJFUnIDU0lQCjQI1YIBEgQyMDQwGMGTASCuHCiOxYcDMMfGhwM4SEABWAFqB0VDT05PTVlyCEhBQTBCRkVOCjII1YIBEgM2MzAYrhwgzGwo-8eHAzC0yIcDOEhAAVgBagdFQ09OT01ZcghIQUEwQkZFThIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Fri, Mar 27 - Sun, Mar 29 MSN Madison ISP Islip $1,515 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:MSN,departure:3/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1514.41&airProductToken=AQqcAQo2CMSYARIEMTEwNhjMbCDjtAEo0N6IAzCc34gDOFFAAFgBaglNQUlOQ0xBU0NyCFFBVkdBME1RCjcIxJgBEgQyNjQ4GOO0ASDBkwEo69-IAzDf4IgDOFFAAVgBaglNQUlOQ0xBU0NyCFFBVkdBME1RCikIuZYBEgMyMTcYwZMBIMh8KP7iiAMw1OOIAzhCQAFYAWoCRVJyA0JJUAqaAQopCLmWARIDMjEyGMh8IMGTASiH9ogDMNz2iAM4U0AAWAFqAkVScgNTSVAKNgjEmAESBDU3MzAYwZMBIMsBKPj3iAMwx_iIAzhRQAFYAWoJTUFJTkNMQVNDcghRQVZHQTBNUQo1CMSYARIENTYxMRjLASDMbCje-YgDMPz6iAM4UUABWAFqCU1BSU5DTEFTQ3IIUUFWR0EwTVESCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, Mar 9 - Fri, Mar 13 MSN Madison ISP Islip $1,521 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSN,to:ISP,departure:3/9/2026TANYT&leg2=from:ISP,to:MSN,departure:3/13/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1521.00&airProductToken=AQrJAQoxCNWCARIEMjEzNxjMbCCuHCjyk4cDMLqUhwM4SEAAWAFqBTJfZWNvcghIQUEwQkZFTgoyCNWCARIEMjMwMRiuHCDEjQEol5WHAzCclocDOEhAAFgBagUyX2Vjb3IISEFBMEJGRU4KMgjVggESAzU3NxjEjQEgwZMBKPuWhwMwxJeHAzhIQABYAWoFMl9lY29yCEhBQTBCRkVOCiwIuZYBEgMyMTcYwZMBIMh8KL6YhwMwlJmHAzhLQABYAWoFMl9lY29yA0tJUArJAQosCLmWARIDMjEyGMh8IMGTASiHwocDMNzChwM4U0AAWAFqBTJfZWNvcgNTSVAKMQjVggESAzcyMRjBkwEgiBgoh8SHAzDvxIcDOFVAAFgBagUyX2Vjb3IIVUFBN1BGRU4KMgjVggESBDE4MzEYiBggxI0BKM_FhwMwpMaHAzhVQABYAWoFMl9lY29yCFVBQTdQRkVOCjII1YIBEgQzNjIzGMSNASDMbCiPx4cDMLnIhwM4VUAAWAFqBTJfZWNvcghVQUE3UEZFThIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAs) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.com/deals?rfrr=FTG_SPRING_PROMO_) ## Frequently asked questions ### How much does a flight from Dane County Regional Airport (MSN) to MacArthur Airport (ISP) cost? ### What is the cheapest month to fly from Dane County Regional Airport (MSN) to MacArthur Airport (ISP)? ### What is the cheapest airline that flies from Dane County Regional Airport (MSN) to MacArthur Airport (ISP)? ### How many flights per day from Dane County Regional Airport (MSN) to MacArthur Airport (ISP)? ### What day of the week has the most flights from MSN to ISP? ### What is the best time to fly from Dane County Regional Airport (MSN) to MacArthur Airport (ISP)? ### What airports do you fly into for Islip from Dane County Regional Airport (MSN)? ### Is it cheaper to buy a plane ticket from Dane County Regional Airport (MSN) to MacArthur Airport (ISP) last-minute? ### Is it cheaper to book a MSN to ISP flight and hotel package? ### Can I cancel or change the date of my flight from Dane County Regional Airport (MSN) to MacArthur Airport (ISP)? ## Travel information | Origin airport | Dane County Regional | | ------------------- | -------------------- | | Destination airport | MacArthur | | Roundtrip price | $888 | | Distance | 848 mi | ## Book with confidence # Madison to Islip Flights The cheapest times to fly from Madison to Islip 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 Madison to Islip are during the month of March. You can find some of the cheapest flights from Madison to Islip with Expedia's search tool and vast selection of airlines. The best time to book a flight from Madison to Islip Sunday is one of the best days to book for cheap flights from Madison to Islip: 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 Madison to Islip 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 Madison to Islip in 2026\. You can also book with separate airlines for your outbound and return journeys, from $375 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 Madison to Islip 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 Madison to Islip 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. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Vacation Rentals - [New York Hotels ](https://www.expedia.com/New-York-Hotels.d178293.Travel-Guide-Hotels) - [Long Island Hotels ](https://www.expedia.com/Long-Island-Hotels.d602887.Travel-Guide-Hotels) - [Hotels near Bohemia Historical Society Museum ](https://www.expedia.com/Bohemia-Historical-Society-Museum-Hotels.0-l553248621554204748-0.Travel-Guide-Filter-Hotels) - [Cheap Hotels in Long Island ](https://www.expedia.com/Long-Island-Hotels-Cheap-Hotels.0-0-d602887-tCheapHotels.Travel-Guide-Filter-Hotels) - [Hotels near Ronkonkoma Station ](https://www.expedia.com/Ronkonkoma-Station-Hotels.d6186166.Travel-Guide-Hotels) - [Motels in Ronkonkoma Station ](https://www.expedia.com/Ronkonkoma-Station-Motels.d6186166-aaMotels.Travel-Guide-Accommodation) - [Oceanfront Hotels in Long Island ](https://www.expedia.com/Long-Island-Hotels-Oceanfront-Hotels.0-0-d602887-tOceanfrontHotels.Travel-Guide-Filter-Hotels) - 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