$902 Cheap Flights from Ottawa (YOW) to Kos (KGS)

View $902 flight on Wed, May 13, 2026Opens in a new window

Popular airlines from Ottawa International Airport (YOW) to Kos (KGS-Kos Island Intl.)

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Cheap Flights from Ottawa to Kos (YOW-KGS)

Prices were available within the past 7 days and start at $902 for one-way flights and $997 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Wed, May 13 - Sun, May 24
YOW
Ottawa
KGS
Kos
$997 Roundtrip, found 6 days ago
$997
Roundtrip
found 6 days ago
Select WestJet flight, departing Wed, May 13 from Ottawa to Kos, returning Sun, May 24, priced at $997 found 6 days ago
Air Canada
Wed, May 13 - Sun, May 24
YOW
Ottawa
KGS
Kos
$1,064 Roundtrip, found 6 days ago
$1,064
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, May 13 from Ottawa to Kos, returning Sun, May 24, priced at $1,064 found 6 days ago
Air Canada
Wed, May 13 - Sun, May 24
YOW
Ottawa
KGS
Kos
$1,071 Roundtrip, found 6 days ago
$1,071
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, May 13 from Ottawa to Kos, returning Sun, May 24, priced at $1,071 found 6 days ago
Air Canada
Wed, May 13 - Sun, May 24
YOW
Ottawa
KGS
Kos
$1,126 Roundtrip, found 6 days ago
$1,126
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, May 13 from Ottawa to Kos, returning Sun, May 24, priced at $1,126 found 6 days ago
Air Canada
Wed, May 13 - Sun, May 24
YOW
Ottawa
KGS
Kos
$1,133 Roundtrip, found 6 days ago
$1,133
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, May 13 from Ottawa to Kos, returning Sun, May 24, priced at $1,133 found 6 days ago
Air Canada
Wed, May 13 - Sun, May 24
YOW
Ottawa
KGS
Kos
$1,168 Roundtrip, found 6 days ago
$1,168
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, May 13 from Ottawa to Kos, returning Sun, May 24, priced at $1,168 found 6 days ago
Air Canada
Wed, May 13 - Sun, May 24
YOW
Ottawa
KGS
Kos
$1,207 Roundtrip, found 6 days ago
$1,207
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, May 13 from Ottawa to Kos, returning Sun, May 24, priced at $1,207 found 6 days ago
Air Canada
Wed, May 13 - Sun, May 24
YOW
Ottawa
KGS
Kos
$1,214 Roundtrip, found 6 days ago
$1,214
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, May 13 from Ottawa to Kos, returning Sun, May 24, priced at $1,214 found 6 days ago
Air Canada
Wed, May 13 - Sun, May 24
YOW
Ottawa
KGS
Kos
$1,221 Roundtrip, found 6 days ago
$1,221
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, May 13 from Ottawa to Kos, returning Sun, May 24, priced at $1,221 found 6 days ago
Austrian Airlines
Wed, May 13 - Sun, May 24
YOW
Ottawa
KGS
Kos
$1,259 Roundtrip, found 6 days ago
$1,259
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Wed, May 13 from Ottawa to Kos, returning Sun, May 24, priced at $1,259 found 6 days ago

Frequently asked questions

How much does a flight from Macdonald-Cartier Intl. Airport (YOW) to Kos Island Intl. Airport (KGS) cost?
Lock in a cheap one-way flight from $902 or cheap return flight from $997 from Macdonald-Cartier Intl. Airport (YOW) to Kos Island Intl. Airport (KGS) 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 Macdonald-Cartier Intl. Airport (YOW) to Kos Island Intl. Airport (KGS)?
Flying in May may help you find better deals, as it's the cheapest month for flights between YOW and KGS. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Macdonald-Cartier Intl. Airport (YOW) to Kos Island Intl. Airport (KGS)?
To find the cheapest airline that'll fly you from YOW to KGS, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Macdonald-Cartier Intl. Airport (YOW) to Kos Island Intl. Airport (KGS)?
You'll need to hop on a flight with a layover when traveling from Macdonald-Cartier Intl. Airport (YOW) to Kos Island Intl. Airport (KGS). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from YOW to KGS?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Macdonald-Cartier Intl. Airport (YOW) to Kos Island Intl. Airport (KGS)?
To land at Kos Island Intl. Airport (KGS) on time, select a flight that leaves Macdonald-Cartier Intl. Airport (YOW) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Macdonald-Cartier Intl. Airport (YOW) to Kos Island Intl. Airport (KGS) last-minute?
Booking your ticket from YOW to KGS right before your journey is generally more expensive. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a YOW to KGS flight and hotel package?
You'll generally save money by securing a YOW to KGS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your preferred accommodations and flights, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Macdonald-Cartier Intl. Airport (YOW) to Kos Island Intl. Airport (KGS)?
Typically, it's possible to cancel or reschedule your YOW to KGS flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Macdonald-Cartier Intl.
Destination airport
Kos Island Intl.
Roundtrip price
$997
Distance
5005 mi

Book with confidence

Ottawa to Kos Flights

The cheapest times to fly from Ottawa to Kos

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

 

The best time to book a flight from Ottawa to Kos

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

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 Ottawa to Kos in 2025. You can also book with separate airlines for your outbound and return journeys, from $902 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 Ottawa to Kos 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 Ottawa to Kos 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.

 

Ottawa to Kos Flights

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*Available to One Key members.