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$480+ Cheap flights from the Czech Republic to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
PRG — ONT
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheap flight deals from Czech Republic to Ontario

Keep the following information in mind while searching for Czech Republic to Ontario flight deals. Data was last updated October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$742
(United Airlines)

One-way from

$539
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$729
Provider with most accurate pricing for Václav Havel Prague-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Václav Havel Prague-Los Angeles flights.
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From Czech Republic to Ontario
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One-way flight from Czech Republic to Ontario
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Highest demand for flights based on searches. 6% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Czech Republic to Ontario

Cheapest flights from Czech Republic to Ontario
Explore the most affordable flight options available from Czech Republic to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:30 amPRG - ONT
2 stops23h 21mUnited Airlines
Thu 11/131:29 pmONT - PRG
2 stops16h 11mUnited Airlines
Deal found 10/18$743
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:15 pmPRG - ONT
2 stops16h 36mUnited Airlines
Tue 11/185:05 amONT - PRG
2 stops24h 00mUnited Airlines
Deal found 10/17$749
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:15 amPRG - ONT
2 stops24h 36mUnited Airlines
Sat 11/81:32 pmONT - PRG
2 stops15h 33mUnited Airlines
Deal found 10/19$764
This American Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:40 amPRG - ONT
2 stops23h 49mAmerican Airlines
Sat 11/1510:47 amONT - PRG
2 stops17h 18mAmerican Airlines
Deal found 10/18$787
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:25 amPRG - ONT
2 stops19h 09mUnited Airlines
Sat 11/151:29 pmONT - PRG
2 stops15h 36mUnited Airlines
Deal found 10/18$791
This KLM deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:30 amPRG - ONT
2 stops18h 23mMultiple Airlines
Sun 11/167:05 amONT - PRG
2 stops16h 20mMultiple Airlines
Deal found 10/18$801
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2411:50 amPRG - ONT
2 stops20h 01mUnited Airlines
Wed 12/101:34 pmONT - PRG
2 stops15h 31mUnited Airlines
Deal found 10/19$842
This American Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:50 amPRG - ONT
2 stops20h 27mAmerican Airlines
Fri 12/124:47 pmONT - PRG
2 stops16h 38mAmerican Airlines
Deal found 10/19$921
This American Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:10 amPRG - ONT
2 stops20h 53mAmerican Airlines
Mon 11/104:47 pmONT - PRG
2 stops18h 48mAmerican Airlines
Deal found 10/18$975
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:35 amPRG - ONT
2 stops23h 17mUnited Airlines
Fri 1/166:00 amONT - PRG
2 stops23h 05mUnited Airlines
Deal found 10/18$986
This American Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:50 amPRG - ONT
2 stops20h 26mAmerican Airlines
Sun 1/412:45 pmONT - PRG
2 stops20h 25mAmerican Airlines
Deal found 10/18$1,026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Czech Republic to Ontario 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 2,558,603 searches. Data last updated October 20, 2025.
Use the filters below to find and compare flights from the Czech Republic to Ontario that are best for you.

Fly from

Czech Republic

Fly to

Ontario

Route

Depart

Return

Price

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Mon 2/23

10:25 am-9:59 pm

2 stops20h 34m

Ontario

Tue 3/3

1:45 pm-2:05 pm

2 stops15h 20m

$742

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Fri 11/21

3:15 pm-10:51 pm

2 stops16h 36m

Ontario

Sat 11/29

6:00 am-2:05 pm

2 stops23h 05m

$743

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Tue 11/11

3:05 pm-10:51 pm

2 stops16h 46m

Ontario

Tue 11/18

7:00 am-11:25 am

2 stops19h 25m

$743

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Fri 11/14

3:15 pm-10:51 pm

2 stops16h 36m

Ontario

Tue 11/18

5:05 am-2:05 pm

2 stops24h 00m

$749

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Fri 10/31

6:15 am-10:51 pm

2 stops24h 36m

Ontario

Sat 11/8

1:32 pm-2:05 pm

2 stops15h 33m

$764

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Sun 11/9

6:50 am-9:11 pm

2 stops23h 21m

Ontario

Sat 11/15

10:47 am-1:05 pm

2 stops17h 18m

$787

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Sun 11/9

7:25 am-5:34 pm

2 stops19h 09m

Ontario

Sat 11/15

1:29 pm-2:05 pm

2 stops15h 36m

$791

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Thu 2/19

7:35 am-5:41 pm

2 stops19h 06m

Ontario

Fri 2/27

1:45 pm-4:05 pm

2 stops17h 20m

$799

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Mon 11/24

11:50 am-10:51 pm

2 stops20h 01m

Ontario

Wed 12/10

1:34 pm-2:05 pm

2 stops15h 31m

$842

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Wed 12/3

6:50 am-6:17 pm

2 stops20h 27m

Ontario

Fri 12/12

4:47 pm-6:25 pm

2 stops16h 38m

$921

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

Showing 1-10 of 20 results
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Best time to book a flight from Czech Republic to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Czech Republic 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 the Czech Republic to Ontario

What is the cheapest month to book a flight from Czech Republic to Ontario?

Currently, May is the cheapest month in which you can book a flight from Czech Republic to Ontario (average of $494). Flying from Czech Republic to Ontario in July is currently the most expensive (average of $705). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Czech Republic to Ontario. 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 Ontario from Czech Republic?

    Ontario (ONT) is the airport you will fly into if you book a flight from Czech Republic to Ontario. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.

  • How long is the flight from Czech Republic to Ontario?

    United Airlines can get you from Czech Republic to Ontario in just under 20h 34m. Your travel time can differ by up to . The distance between Czech Republic and Ontario is about 5917 mi.

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

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

  • How can I find direct flights from Czech Republic to Ontario?

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

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

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

  • What is the cheapest month to book a flight from Czech Republic to Ontario?

    Currently, May is the cheapest month in which you can book a flight from Czech Republic to Ontario (average of $494). Flying from Czech Republic to Ontario in July is currently the most expensive (average of $705). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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