Title: Cheap Flights from Ottawa (YOW) to Islip (ISP) - Expedia.ca ![I like this Picture ](https://images.trvl-media.com/place/1638/63f46c37-e675-4de2-959a-e47798b53e52.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by Juan Blanco ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Ottawa (YOW) to Islip (ISP) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Ottawa International Airport (YOW) to MacArthur Airport (ISP) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:isp,departure:28/10/2025TANYT&leg2=from:isp,to:yow,departure:04/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:isp,departure:28/10/2025TANYT&leg2=from:isp,to:yow,departure:04/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) - ![Flair Airlines](https://a.travel-assets.com/air/airlines/f8_sq.svg) Flair Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:isp,departure:28/10/2025TANYT&leg2=from:isp,to:yow,departure:04/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F8"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:isp,departure:28/10/2025TANYT&leg2=from:isp,to:yow,departure:04/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:isp,departure:28/10/2025TANYT&leg2=from:isp,to:yow,departure:04/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:isp,departure:28/10/2025TANYT&leg2=from:isp,to:yow,departure:04/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Porter Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PD.svg) Porter Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:isp,departure:28/10/2025TANYT&leg2=from:isp,to:yow,departure:04/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}]) ![notification illustration](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\* ![deals illustration](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\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Frequently asked questions ### How much is a flight from Ottawa Intl. Airport to ISP? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip journey from Macdonald-Cartier Intl. Airport (YOW) to MacArthur Airport was . Fares this cheap don't wait forever, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Ottawa International Airport to MacArthur Airport (ISP)? > The majority of flights can be cancelled online, but whether or not you are charged a fee varies between airlines. If you do need to cancel your break, follow the easy instructions in the [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Ottawa Intl. Airport to MacArthur Airport (ISP) that have flexible change policies? > Plenty of carriers offer the option to move your flight at no extra charge. All you pay is the fare difference. When looking for Ottawa International Airport to MacArthur Airport (ISP) flights, you'll see a "No change fees" box for you to pick. ### How far is the flight from Ottawa Intl. Airport to MacArthur Airport? > That new movie you've been eager to see will just have to wait — the flight distance between Ottawa Intl. Airport and ISP is only 550 kilometres. The captain will be instructing you to buckle up for touchdown before you know it. ### Which airlines fly direct from Macdonald-Cartier Intl. Airport (YOW) to MacArthur Airport? > You won't find any airlines operating directly between Ottawa International Airport and ISP, so be ready to make at least one stop on your journey. A layover, whether short or long, can be a nice way to break up a trip! ### Are YOW to MacArthur Airport (ISP) flight tickets cheaper when they're purchased at the last minute? > Fares from Ottawa International Airport to ISP are available up to a year prior to departure on Expedia. And although you may occasionally pick up a fantastic last-minute deal, it's never a sure thing. Also, booking your flights well in advance means you'll have more options — and you can avoid getting trapped in the dreaded middle seat! We frequently update our fares to bring you the best bargains, so check back often for all the latest specials. ## Travel information | Origin airport | Macdonald-Cartier Intl. | | --- | --- | | Destination airport | MacArthur | | Distance | 542 km | ## Book with confidence ### Ottawa to Ronkonkoma Flights **The easy way to book your flights from Ottawa to Islip**  With Expedia, it’s simple to find and book flights to Islip from Ottawa whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to MacArthur, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ottawa to Islip today, tomorrow, or this week.   **Save dollars with cheap flights from Macdonald-Cartier Intl., YOW to MacArthur, ISP**  Sort your search results by price to find great deals on your flight from Ottawa to Islip—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Islip from Ottawa currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Islip   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Islip from Ottawa**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Islip with Expedia today. ## Explore a world of travel with Expedia - Flights - [Flights from Guayaquil to Long Island](https://www.expedia.ca/lp/flights/1414/602887/guayaquil-to-long-island) - [Flights from Boston to Long Island](https://www.expedia.ca/lp/flights/178239/602887/boston-to-long-island) - [Flights from Calgary to Long Island](https://www.expedia.ca/lp/flights/178245/602887/calgary-to-long-island) - [Flights from Cleveland to Long Island](https://www.expedia.ca/lp/flights/178250/602887/cleveland-to-long-island) - [Flights from Dallas to Long Island](https://www.expedia.ca/lp/flights/178253/602887/dallas-to-long-island) - [Flights from Indianapolis to Long Island](https://www.expedia.ca/lp/flights/178266/602887/indianapolis-to-long-island) - [Flights from Minneapolis - St. Paul to Long Island](https://www.expedia.ca/lp/flights/178287/602887/minneapolis-st-paul-to-long-island) - [Flights from Montreal to Long Island](https://www.expedia.ca/lp/flights/178288/602887/montreal-to-long-island) - [Flights from Nashville to Long Island](https://www.expedia.ca/lp/flights/178291/602887/nashville-to-long-island) - [Flights from Ottawa to Long Island](https://www.expedia.ca/lp/flights/178296/602887/ottawa-to-long-island) - [Flights from Raleigh to Long Island](https://www.expedia.ca/lp/flights/178300/602887/raleigh-to-long-island) - [Flights from San Francisco to Long Island](https://www.expedia.ca/lp/flights/178305/602887/san-francisco-to-long-island) - [Flights from Seattle to Long Island](https://www.expedia.ca/lp/flights/178307/602887/seattle-to-long-island) - [Flights from Toronto to Long Island](https://www.expedia.ca/lp/flights/178314/602887/toronto-to-long-island) - [Flights from Vancouver to Long Island](https://www.expedia.ca/lp/flights/178315/602887/vancouver-to-long-island) - [Flights from Budapest to Long Island](https://www.expedia.ca/lp/flights/179994/602887/budapest-to-long-island) - [Flights from Cancun to Long Island](https://www.expedia.ca/lp/flights/179995/602887/cancun-to-long-island) - [Flights from Tel Aviv to Long Island](https://www.expedia.ca/lp/flights/180031/602887/tel-aviv-to-long-island) - [Flights from Pittsburgh to Long Island](https://www.expedia.ca/lp/flights/601717/602887/pittsburgh-to-long-island) - [Flights from Fort Lauderdale to Long Island](https://www.expedia.ca/lp/flights/601750/602887/fort-lauderdale-to-long-island) - [Flights from Syracuse to Long Island](https://www.expedia.ca/lp/flights/601764/602887/syracuse-to-long-island) - [Flights from Birmingham to Long Island](https://www.expedia.ca/lp/flights/6023342/602887/birmingham-to-long-island) - [Flights from Buffalo to Long Island](https://www.expedia.ca/lp/flights/602674/602887/buffalo-to-long-island) - [Flights from Rochester to Long Island](https://www.expedia.ca/lp/flights/602966/602887/rochester-to-long-island) - [Flights from Fresno to Long Island](https://www.expedia.ca/lp/flights/602988/602887/fresno-to-long-island) - [Flights from Greenville - Spartanburg to Long Island](https://www.expedia.ca/lp/flights/6035267/602887/greenville-spartanburg-to-long-island) - [Flights from Winnipeg to Long Island](https://www.expedia.ca/lp/flights/6141041/602887/winnipeg-to-long-island) - [Flights from Accra (ACC) to New York (JFK)](https://www.expedia.ca/lp/flights/acc/jfk/accra-to-new-york) - [Flights from Ahmedabad (AMD) to New York (JFK)](https://www.expedia.ca/lp/flights/amd/jfk/ahmedabad-to-new-york) - [Flights from Barcelona (BCN) to New York (JFK)](https://www.expedia.ca/lp/flights/bcn/jfk/barcelona-to-new-york) - [Flights from Bellingham (BLI) to New York (JFK)](https://www.expedia.ca/lp/flights/bli/jfk/bellingham-to-new-york) - [Flights from Nashville (BNA) to New York (JFK)](https://www.expedia.ca/lp/flights/bna/jfk/nashville-to-new-york) - [Flights from Mumbai (BOM) to New York (JFK)](https://www.expedia.ca/lp/flights/bom/jfk/mumbai-to-new-york) - [Flights from Baltimore (BWI) to New York (JFK)](https://www.expedia.ca/lp/flights/bwi/jfk/baltimore-to-new-york) - [Flights from Paris (CDG) to New York (JFK)](https://www.expedia.ca/lp/flights/cdg/jfk/paris-to-new-york) - [Flights from Cleveland (CLE) to New York (JFK)](https://www.expedia.ca/lp/flights/cle/jfk/cleveland-to-new-york) - [Flights from Charlotte (CLT) to New York (JFK)](https://www.expedia.ca/lp/flights/clt/jfk/charlotte-to-new-york) - [Flights from Dhaka (DAC) to New York (JFK)](https://www.expedia.ca/lp/flights/dac/jfk/dhaka-to-new-york) - [Flights from Washington (DCA) to New York (JFK)](https://www.expedia.ca/lp/flights/dca/jfk/washington-to-new-york) - [Flights from Duluth (DLH) to White Plains (HPN)](https://www.expedia.ca/lp/flights/dlh/hpn/duluth-to-white-plains) - [Flights from Detroit (DTW) to New York (JFK)](https://www.expedia.ca/lp/flights/dtw/jfk/detroit-to-new-york) - [Flights from Dubai (DXB) to New York (JFK)](https://www.expedia.ca/lp/flights/dxb/jfk/dubai-to-new-york) - [Flights from Newark Liberty Intl. 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