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Cheap flights from Ontario to Kos from C$ 855

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — KGS
5 Aug — 12 Aug1
1 adult

Cheap flight deals from Ontario to Kos

Keep the following information in mind while searching for Ontario to Kos flight deals. Data was last updated 31 July 2025.

Round-trip from

C$ 1,291

One-way from

C$ 1,218
SWISS
  • SWISS
  • 10/10-20/10
  • 3 total stops
  • 59h 25m total
  • Ontario to Kos
Search Deals
SWISS
  • SWISS
  • 14/9
  • 2 total stops
  • 43h 15m total
  • Ontario to Kos
Search Deals

Find flight deals from Ontario to Kos

Cheapest flights from Ontario to Kos
Explore the most affordable flight options available from Ontario to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Fri 12/911:55 p.m.YYZ - KGS
1 stop14h 35mMultiple Airlines
Mon 22/95:30 p.m.KGS - YYZ
2 stops27h 40mMultiple Airlines
Deal found 31/7C$ 855
Thu 11/94:35 p.m.YYZ - KGS
1 stop15h 35mSWISS
Mon 22/911:00 a.m.KGS - YYZ
1 stop32h 50mSWISS
Deal found 31/7C$ 1,283
Thu 4/910:45 p.m.YYZ - KGS
2 stops27h 05mLufthansa
Wed 17/97:55 p.m.KGS - YYZ
2 stops22h 45mLufthansa
Deal found 31/7C$ 1,334
Fri 10/105:25 p.m.YTZ - KGS
2 stops38h 05mSWISS
Sun 19/103:15 p.m.KGS - YTZ
2 stops33h 30mSWISS
Deal found 30/7C$ 1,457
Fri 26/129:45 p.m.YUL - KGS
2 stops30h 45mMultiple Airlines
Sun 4/112:00 p.m.KGS - YUL
2 stops39h 15mMultiple Airlines
Deal found 31/7C$ 1,656
Thu 31/74:40 p.m.YUL - KGS
1 stop15h 30mSWISS
Sun 10/83:15 p.m.KGS - YUL
1 stop30h 45mSWISS
Deal found 31/7C$ 10,050

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Kos that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 31 July 2025.
Use the filters below to find and compare flights from Ontario to Kos that are best for you.

Fly from

Ontario

Fly to

Kos

Route

Depart

Return

Price

TorontoKos

YYZ - KGS

YYZKGS

Toronto Pearson Intl

Fri 12/9

11:55 p.m.-9:30 p.m.

1 stop14h 35m

Kos

Mon 22/9

5:30 p.m.-2:10 p.m.

2 stops27h 40m

C$ 855

TorontoKos

YYZ - KGS

YYZKGS

Toronto Pearson Intl

Thu 11/9

4:35 p.m.-3:10 p.m.

1 stop15h 35m

Kos

Mon 22/9

11:00 a.m.-12:50 p.m.

1 stop32h 50m

C$ 1,283

TorontoKos

YYZ - KGS

YYZKGS

Toronto Pearson Intl

Thu 4/9

10:45 p.m.-8:50 a.m.

2 stops27h 05m

Kos

Wed 17/9

7:55 p.m.-11:40 a.m.

2 stops22h 45m

C$ 1,334

TorontoKos

YTZ - KGS

YTZKGS

Toronto Island

Fri 10/10

5:25 p.m.-2:30 p.m.

2 stops38h 05m

Kos

Sun 19/10

3:15 p.m.-5:45 p.m.

2 stops33h 30m

C$ 1,457

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Fri 26/12

9:45 p.m.-11:30 a.m.

2 stops30h 45m

Kos

Sun 4/1

12:00 p.m.-8:15 p.m.

2 stops39h 15m

C$ 1,656

TorontoKos

YTZ - KGS

YTZKGS

Toronto Island

Sun 14/9

5:25 p.m.-7:40 p.m.

2 stops43h 15m

C$ 1,218

TorontoKos

YYZ - KGS

YYZKGS

Toronto Pearson Intl

Sun 14/9

6:00 p.m.-7:40 p.m.

2 stops42h 40m

C$ 1,227

TorontoKos

YYZ - KGS

YYZKGS

Toronto Pearson Intl

Sun 14/9

5:45 p.m.-8:00 p.m.

1 stop19h 15m

C$ 1,239

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/7

Best time to book a flight from Ontario to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Kos
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Kos

Get insights into the airlines that provide service to Kos. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kos. Reviews last updated 31 July 2025.
Read reviews from past customers who have flown Austrian Airlines,SWISS, andLufthansa from Ontario to Kos. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
823 reviews
Check prices

Comfort

7.3

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
823 reviews
Austrian Airlines
7.6
Good
823 reviews
Check prices

Comfort

7.3

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
SWISS
7.5
Good
1,686 reviews
Austrian Airlines
7.6
Good
823 reviews
Check prices

Comfort

7.3

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Lufthansa
6.8
Okay
7,275 reviews
Austrian Airlines
7.6
Good
823 reviews
Check prices

Comfort

7.3

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Related info for your journey

Find useful and relevant information for your journey from Ontario to Kos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Kos from Ontario?

    Most people fly into Kos (KGS) if they book a flight to Kos from Ontario. Kos is conveniently located just 20.6 km from Kos’s city centre.

  • What are the most popular routes from Region of Ontario to Kos?

    The most popular flight routes from Region of Ontario to Kos are Toronto Pearson Intl - Kos, Toronto Island - Kos and Montreal Pierre Elliott Trudeau Intl - Kos.

  • Can I find deals for flights from Ontario to Kos that include hotel bookings?

    Yes. In addition to deals on Ontario to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Kos?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Kos.

  • Can I find deals for business class flights from Ontario to Kos?

    Yes. Cheapflights offers flight deals from Ontario to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Ontario to Kos

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Ontario to Kos?

When you search for this flight from Ontario to Kos, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Kos?

Cheapflights simply makes it quick and affordable to book flights from Ontario to Kos by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario to Kos with no change fees?

Certainly. Search results for flights to Kos from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ontario to Kos become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Kos from Ontario today and book when prices fit your budget.

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