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Cheap flights from Ontario to Kos from C$ 1,246

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — KGS
5 May — 12 May1
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 30 April 2025.

Round-trip from

C$ 1,246
British Airways
  • British Airways
  • 23/9-22/10
  • 2 total stops
  • 45h 05m 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 30 April 2025.

Tue 23/910:10 p.m.YUL - KGS
1 stop15h 35mBritish Airways
Wed 22/109:45 p.m.KGS - YUL
1 stop29h 30mBritish Airways
Deal found 29/4C$ 1,246
Tue 23/94:40 p.m.YUL - KGS
1 stop20h 15mSWISS
Tue 21/108:30 p.m.KGS - YUL
1 stop25h 30mSWISS
Deal found 29/4C$ 1,282
Wed 17/96:20 p.m.YYZ - KGS
1 stop17h 20mMultiple Airlines
Wed 24/98:40 p.m.KGS - YYZ
1 stop23h 10mMultiple Airlines
Deal found 29/4C$ 1,347
Wed 24/95:50 p.m.YUL - KGS
2 stops17h 50mLufthansa
Wed 22/107:55 p.m.KGS - YUL
1 stop29h 55mLufthansa
Deal found 29/4C$ 1,395
Wed 17/96:20 p.m.YYZ - KGS
2 stops17h 20mLufthansa
Wed 24/97:55 p.m.KGS - YYZ
2 stops22h 45mLufthansa
Deal found 29/4C$ 1,437
Fri 10/105:25 p.m.YTZ - KGS
2 stops38h 05mSWISS
Sun 19/103:15 p.m.KGS - YTZ
2 stops33h 30mSWISS
Deal found 29/4C$ 1,572
Fri 10/106:20 p.m.YYZ - KGS
2 stops31h 50mAustrian Airlines
Sun 19/1010:00 a.m.KGS - YYZ
2 stops38h 58mAustrian Airlines
Deal found 29/4C$ 1,610
Fri 26/910:50 p.m.YUL - KGS
1 stop13h 35mMultiple Airlines
Thu 23/1011:00 a.m.KGS - YUL
1 stop35h 00mMultiple Airlines
Deal found 29/4C$ 1,637
Fri 26/910:15 a.m.YUL - KGS
2 stops24h 15mEmirates
Thu 23/1011:25 a.m.KGS - YUL
2 stops27h 35mEmirates
Deal found 29/4C$ 2,046

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 30 April 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

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Tue 23/9

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

1 stop15h 35m

Kos

Wed 22/10

9:45 p.m.-8:15 p.m.

1 stop29h 30m

C$ 1,246

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Tue 23/9

4:40 p.m.-7:55 p.m.

1 stop20h 15m

Kos

Tue 21/10

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

1 stop25h 30m

C$ 1,282

TorontoKos

YYZ - KGS

YYZKGS

Toronto Pearson Intl

Wed 17/9

6:20 p.m.-6:40 p.m.

1 stop17h 20m

Kos

Wed 24/9

8:40 p.m.-12:50 p.m.

1 stop23h 10m

C$ 1,347

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Wed 24/9

5:50 p.m.-6:40 p.m.

2 stops17h 50m

Kos

Wed 22/10

7:55 p.m.-6:50 p.m.

1 stop29h 55m

C$ 1,395

TorontoKos

YYZ - KGS

YYZKGS

Toronto Pearson Intl

Wed 17/9

6:20 p.m.-6:40 p.m.

2 stops17h 20m

Kos

Wed 24/9

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

2 stops22h 45m

C$ 1,437

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$ 1,572

TorontoKos

YYZ - KGS

YYZKGS

Toronto Pearson Intl

Fri 10/10

6:20 p.m.-9:10 a.m.

2 stops31h 50m

Kos

Sun 19/10

10:00 a.m.-5:58 p.m.

2 stops38h 58m

C$ 1,610

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Fri 26/9

10:50 p.m.-7:25 p.m.

1 stop13h 35m

Kos

Thu 23/10

11:00 a.m.-3:00 p.m.

1 stop35h 00m

C$ 1,637

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Fri 26/9

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

2 stops24h 15m

Kos

Thu 23/10

11:25 a.m.-8:00 a.m.

2 stops27h 35m

C$ 2,046

MontrealKos

YUL - KGS

YULKGS

Montreal Pierre Elliott Trudeau Intl

Fri 13/6

7:05 p.m.-5:55 p.m.

2 stops15h 50m

C$ 2,269

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/4

Showing 1-10 of 11 results
1
2

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

Rainfall in Kos by month

Plan your trip to Kos by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kos ranges from 2.0 - 169.0 mm per month. January is typically the wettest month, when rainfall can reach 169.0 mm. July is typically the driest time to visit Kos when rainfall is around 2.0 mm.

Temperature in Kos by month

Plan your trip to Kos by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kos, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 10.0 C).

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 30 April 2025.
Emirates
8.0
Very good
3,215 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Food

7.8

Crew

8.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Efstathia Helen,Sep 2024

EWR - ATH

My earphone set did not work throughout the flight. I tried with two different sets. I believe there was a problem with the system where I was seated.
Emirates
8.0
Very good
3,215 reviews
Emirates
8.0
Very good
3,215 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Food

7.8

Crew

8.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Efstathia Helen,Sep 2024

EWR - ATH

My earphone set did not work throughout the flight. I tried with two different sets. I believe there was a problem with the system where I was seated.
Austrian Airlines
7.6
Good
780 reviews
Emirates
8.0
Very good
3,215 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Food

7.8

Crew

8.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Efstathia Helen,Sep 2024

EWR - ATH

My earphone set did not work throughout the flight. I tried with two different sets. I believe there was a problem with the system where I was seated.
SWISS
7.5
Good
1,588 reviews
Emirates
8.0
Very good
3,215 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Food

7.8

Crew

8.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Efstathia Helen,Sep 2024

EWR - ATH

My earphone set did not work throughout the flight. I tried with two different sets. I believe there was a problem with the system where I was seated.
Lufthansa
6.7
Okay
7,042 reviews
Emirates
8.0
Very good
3,215 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Food

7.8

Crew

8.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Efstathia Helen,Sep 2024

EWR - ATH

My earphone set did not work throughout the flight. I tried with two different sets. I believe there was a problem with the system where I was seated.
British Airways
6.6
Okay
6,837 reviews
Emirates
8.0
Very good
3,215 reviews
Check prices

Entertainment

8.2

Boarding

8.1

Food

7.8

Crew

8.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Efstathia Helen,Sep 2024

EWR - ATH

My earphone set did not work throughout the flight. I tried with two different sets. I believe there was a problem with the system where I was seated.

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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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.

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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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