Czech Republic

$440+ Cheap flights from Ontario (ONT) to the Czech Republic

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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PRG
Nov 18 — Nov 251
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Find flight deals from Ontario to Czech Republic

Cheapest flights from Ontario to Czech Republic
Explore the most affordable flight options available from Ontario to Czech Republic. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2025.

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 12/56:41 pmONT - PRG
2 stops18h 44mUnited Airlines
Wed 12/177:30 amPRG - ONT
2 stops24h 19mUnited Airlines
Deal found 10/17$554
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.
Thu 11/277:00 amONT - PRG
2 stops30h 25mUnited Airlines
Fri 12/57:35 amPRG - ONT
2 stops24h 14mUnited Airlines
Deal found 10/18$555
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.
Thu 12/115:05 amONT - PRG
2 stops32h 20mUnited Airlines
Thu 12/256:50 amPRG - ONT
2 stops24h 35mUnited Airlines
Deal found 10/19$558
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2712:16 pmONT - PRG
2 stops20h 19mDelta
Fri 12/56:00 amPRG - ONT
2 stops26h 58mDelta
Deal found 10/17$561
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.
Mon 12/18:38 pmONT - PRG
2 stops34h 27mUnited Airlines
Mon 12/86:50 amPRG - ONT
3 stops24h 59mUnited Airlines
Deal found 10/17$563
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:00 amONT - PRG
2 stops17h 35mMultiple Airlines
Thu 12/47:35 amPRG - ONT
2 stops24h 14mMultiple Airlines
Deal found 10/17$567
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.
Wed 11/197:00 amONT - PRG
2 stops19h 05mUnited Airlines
Wed 12/36:50 amPRG - ONT
3 stops24h 59mUnited Airlines
Deal found 10/17$570
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.
Sun 11/236:00 amONT - PRG
2 stops31h 25mUnited Airlines
Tue 12/23:05 pmPRG - ONT
2 stops40h 44mUnited Airlines
Deal found 10/17$574
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.
Sat 11/226:38 pmONT - PRG
2 stops42h 47mUnited Airlines
Tue 12/23:05 pmPRG - ONT
2 stops40h 44mUnited Airlines
Deal found 10/17$579
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Thu 11/61:29 pmONT - PRG
2 stops17h 36mUnited Airlines
Wed 11/127:30 amPRG - ONT
2 stops19h 04mUnited Airlines
Deal found 10/16$654
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.
Mon 11/101:29 pmONT - PRG
2 stops17h 36mUnited Airlines
Mon 11/2411:50 amPRG - ONT
2 stops20h 01mUnited Airlines
Deal found 10/18$655

Cheap flight deals from Ontario to Czech Republic

Keep the following information in mind while searching for Ontario to Czech Republic flight deals. Data was last updated October 19, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$554
(United Airlines)

One-way from

$440
(Expedia)

Popular in

June

Cheapest in

November

Average price

$641
Provider with most accurate pricing for Los Angeles-Václav Havel Prague flight deals.
Provider most trusted by Cheapflights users for Los Angeles-Václav Havel Prague flights.
From Ontario to Czech Republic
One-way flight from Ontario to Czech Republic
Highest demand for flights based on searches. 14% potential increase in price ($127 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
Average for round-trip flights in October 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Czech Republic 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 19, 2025.
Use the filters below to find and compare flights from Ontario to the Czech Republic that are best for you.

Fly from

Ontario

Fly to

Czech Republic

Route

Depart

Return

Price

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Fri 11/14

6:38 pm-10:25 pm

2 stops18h 47m

Václav Havel Prague

Mon 11/17

3:10 pm-10:51 pm

2 stops16h 41m

$554

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 11/27

6:00 am-10:25 pm

2 stops31h 25m

Václav Havel Prague

Fri 12/5

7:35 am-10:49 pm

3 stops24h 14m

$555

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Fri 12/5

6:41 pm-10:25 pm

2 stops18h 44m

Václav Havel Prague

Wed 12/17

7:30 am-5:35 pm

2 stops19h 05m

$555

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 12/11

5:05 am-10:25 pm

2 stops32h 20m

Václav Havel Prague

Thu 12/25

6:50 am-10:25 pm

2 stops24h 35m

$558

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 1/15

6:39 pm-10:25 pm

2 stops18h 46m

Václav Havel Prague

Thu 1/29

1:45 pm-10:53 pm

2 stops18h 08m

$559

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 11/27

12:16 pm-5:35 pm

2 stops20h 19m

Václav Havel Prague

Fri 12/5

6:00 am-11:58 pm

2 stops26h 58m

$561

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 12/1

8:38 pm-4:05 pm

2 stops34h 27m

Václav Havel Prague

Mon 12/8

6:50 am-10:49 pm

3 stops24h 59m

$563

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 11/27

7:00 am-9:35 am

2 stops17h 35m

Václav Havel Prague

Thu 12/4

7:35 am-10:49 pm

2 stops24h 14m

$567

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 11/19

7:00 am-11:05 am

2 stops19h 05m

Václav Havel Prague

Wed 12/3

6:50 am-10:49 pm

3 stops24h 59m

$570

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sat 1/17

4:49 pm-7:50 pm

2 stops18h 01m

$440

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/17

Showing 1-10 of 19 results
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Best time to book a flight from Ontario to Czech Republic

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

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

Currently, November is the cheapest month in which you can book a flight from Ontario to Czech Republic (average of $424). Flying from Ontario to Czech Republic in June is currently the most expensive (average of $712). 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 Ontario to Czech Republic. 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 from for flights from Ontario to Czech Republic?

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

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

    For as low as $554, United Airlines can have you in Czech Republic from Ontario in 18h 47m. Ontario and Czech Republic are separated by a distance of 5917 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Czech Republic 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 Ontario to Czech Republic?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Czech Republic (average of $424). Flying from Ontario to Czech Republic in June is currently the most expensive (average of $712). 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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