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Cheap flights from Ontario to Kos from C$ 992

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — KGS
4 Sep — 11 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Kos

Enter your travel dates to find the best prices.

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 5 August 2026.

Sun 20/96:30 p.m. -
2 stops21h 45m
Thu 24/95:15 p.m. -
2 stops26h 40m
Deal found 2/8C$ 992
Sun 20/92:30 p.m. -
2 stops24h 25m
Thu 24/911:45 p.m. -
2 stops23h 45m
Deal found 2/8C$ 1,124
Sat 3/1011:55 p.m. -
1 stop13h 20m
Sat 10/1011:55 p.m. -
2 stops22h 55m
Deal found 2/8C$ 1,175
Mon 7/98:10 a.m. -
3 stops33h 25m
Tue 15/96:00 a.m. -
3 stops22h 50m
Deal found 31/7C$ 1,186
Thu 17/911:45 p.m. -
2 stops17h 50m
Thu 24/96:00 a.m. -
2 stops18h 20m
Deal found 2/8C$ 1,209
Sat 3/104:55 p.m. -
3 stops32h 10m
Sat 10/108:35 a.m. -
3 stops38h 55m
Deal found 2/8C$ 1,501
Mon 7/94:40 p.m. -
1 stop20h 00m
Tue 15/98:30 p.m. -
1 stop25h 30m
Deal found 31/7C$ 1,535
Mon 5/1010:15 a.m. -
2 stops24h 20m
Fri 9/101:05 p.m. -
2 stops49h 55m
Deal found 3/8C$ 2,163
Sun 4/102:55 p.m. -
2 stops43h 40m
Thu 8/106:05 p.m. -
2 stops46h 25m
Deal found 4/8C$ 5,286

Find flight deals from Ontario to Kos

Keep the following information in mind while searching for Ontario to Kos flight deals. Data was last updated 5 August 2026.

Round-trip from

C$ 992
20/9-24/9
  • 20/9-24/9
  • 4 total stops
  • 48h 25m total
  • Ontario to Kos
Search Deals

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 5 August 2026.
Use the filters below to find and compare flights from Ontario to Kos that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoKos

YTZ - KGS

YTZKGS

Toronto Island

Sun 20/9

2:30 p.m.-9:55 p.m.

2 stops24h 25m

Kos

Thu 24/9

11:45 p.m.-4:30 p.m.

2 stops23h 45m

C$ 1,124

TorontoKos

YYZ - KGS

YYZKGS

Toronto Pearson Intl

Sun 20/9

7:55 p.m.-10:35 p.m.

2 stops19h 40m

Kos

Thu 24/9

10:25 p.m.-5:55 p.m.

3 stops26h 30m

C$ 1,179

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

8:10 a.m.-12:35 a.m.

3 stops33h 25m

Kos

Tue 15/9

6:00 a.m.-9:50 p.m.

3 stops22h 50m

C$ 1,186
Quickest round-trip

TorontoKos

YYZ - KGS

YYZKGS

Toronto Pearson Intl

Sat 3/10

11:50 p.m.-10:15 p.m.

1 stop15h 25m

Kos

Sat 10/10

11:55 p.m.-4:00 p.m.

1 stop23h 05m

C$ 1,231

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Thu 17/9

5:20 p.m.-5:30 p.m.

1 stop17h 10m

Kos

Thu 24/9

10:05 p.m.-2:15 p.m.

1 stop23h 10m

C$ 1,240

TorontoKos

YTZ - KGS

YTZKGS

Toronto Island

Sat 3/10

4:55 p.m.-8:05 a.m.

3 stops32h 10m

Kos

Sat 10/10

8:35 a.m.-4:30 p.m.

3 stops38h 55m

C$ 1,501

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

4:40 p.m.-7:40 p.m.

1 stop20h 00m

Kos

Tue 15/9

8:30 p.m.-3:00 p.m.

1 stop25h 30m

C$ 1,535

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Mon 5/10

10:15 a.m.-5:35 p.m.

2 stops24h 20m

Kos

Fri 9/10

1:05 p.m.-8:00 a.m.

2 stops49h 55m

C$ 2,163

TorontoKos

YYZ - KGS

YYZKGS

Toronto Pearson Intl

Sun 4/10

2:55 p.m.-5:35 p.m.

2 stops43h 40m

Kos

Thu 8/10

6:05 p.m.-9:30 a.m.

2 stops46h 25m

C$ 5,286

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Mon 14/9

10:15 a.m.-5:30 p.m.

2 stops48h 15m

Kos

Thu 17/9

6:10 p.m.-8:00 a.m.

2 stops44h 50m

C$ 5,733

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Sorted by cheapest first

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.

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 Montreal Pierre Elliott Trudeau Intl - Kos, Toronto Pearson Intl - Kos and Toronto Island - 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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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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