Cheap Flights from Islip (ISP) to Ottawa (YOW)

Popular airlines from MacArthur Airport (ISP) to Ottawa International Airport (YOW)

Cheap Flights from Islip to Ottawa (ISP-YOW)

Prices were available within the past 7 days and start at for one-way flights and $2,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cape Air
Fri, Oct 3 - Mon, Oct 6
ISP
Islip
YOW
Ottawa
$2,300 Roundtrip, found 4 days ago
$2,300
Roundtrip
found 4 days ago
Select Cape Air flight, departing Fri, Oct 3 from Islip to Ottawa, returning Mon, Oct 6, priced at $2,300 found 4 days ago
Cape Air
Fri, Oct 3 - Wed, Oct 8
ISP
Islip
YOW
Ottawa
$2,309 Roundtrip, found 4 days ago
$2,309
Roundtrip
found 4 days ago
Select Cape Air flight, departing Fri, Oct 3 from Islip to Ottawa, returning Wed, Oct 8, priced at $2,309 found 4 days ago
Cape Air
Sat, Oct 4 - Wed, Oct 8
ISP
Islip
YOW
Ottawa
$2,315 Roundtrip, found 4 days ago
$2,315
Roundtrip
found 4 days ago
Select Cape Air flight, departing Sat, Oct 4 from Islip to Ottawa, returning Wed, Oct 8, priced at $2,315 found 4 days ago
Cape Air
Fri, Oct 3 - Mon, Oct 6
ISP
Islip
YOW
Ottawa
$2,360 Roundtrip, found 1 day ago
$2,360
Roundtrip
found 1 day ago
Select Cape Air flight, departing Fri, Oct 3 from Islip to Ottawa, returning Mon, Oct 6, priced at $2,360 found 1 day ago
Cape Air
Fri, Oct 3 - Mon, Oct 6
ISP
Islip
YOW
Ottawa
$2,807 Roundtrip, found 4 days ago
$2,807
Roundtrip
found 4 days ago
Select Cape Air flight, departing Fri, Oct 3 from Islip to Ottawa, returning Mon, Oct 6, priced at $2,807 found 4 days ago
Cape Air
Fri, Oct 3 - Mon, Oct 6
ISP
Islip
YOW
Ottawa
$2,827 Roundtrip, found 1 day ago
$2,827
Roundtrip
found 1 day ago
Select Cape Air flight, departing Fri, Oct 3 from Islip to Ottawa, returning Mon, Oct 6, priced at $2,827 found 1 day ago

Frequently asked questions

How much does a flight from MacArthur Airport (ISP) to Macdonald-Cartier Intl. Airport (YOW) cost?
Lock in a cheap one-way flight or cheap return flight from $2,300 from MacArthur Airport (ISP) to Macdonald-Cartier Intl. Airport (YOW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from MacArthur Airport (ISP) to Macdonald-Cartier Intl. Airport (YOW)?
The cheapest month to fly from ISP to YOW is October, when demand is low. Off-peak season is typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from MacArthur Airport (ISP) to Macdonald-Cartier Intl. Airport (YOW)?
To find the cheapest airline that'll fly you from ISP to YOW, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from MacArthur Airport (ISP) to Macdonald-Cartier Intl. Airport (YOW)?
Nonstop flights from MacArthur Airport (ISP) to Macdonald-Cartier Intl. Airport (YOW) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ISP to YOW?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from MacArthur Airport (ISP) to Macdonald-Cartier Intl. Airport (YOW)?
Choose a flight from MacArthur Airport (ISP) to Macdonald-Cartier Intl. Airport (YOW) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from MacArthur Airport (ISP) to Macdonald-Cartier Intl. Airport (YOW) last-minute?
Booking your plane ticket from ISP to YOW shortly before your journey is usually more expensive. However, if you're flexible with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book an ISP to YOW flight and hotel package?
Compared with arranging flights and hotels separately, booking an ISP to YOW flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one place will take the stress out of planning your trip. Just pick your flights and choose from our extensive range of stays, then customize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from MacArthur Airport (ISP) to Macdonald-Cartier Intl. Airport (YOW)?
If you reserved your ISP to YOW flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Travel information

Origin airport
MacArthur
Destination airport
Macdonald-Cartier Intl.
Roundtrip price
$2,158
Distance
338 mi

Book with confidence

Book with confidence

Islip to Ottawa Flights

The cheapest times to fly from Islip to Ottawa

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 Ottawa are during the month of October. You can find some of the cheapest flights from Islip to Ottawa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Islip to Ottawa

Sunday is one of the best days to book for cheap flights from Islip to Ottawa: 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 Ottawa

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 Ottawa in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Ottawa 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. Bundling together your Islip to Ottawa 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.

 

Islip to Ottawa Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.