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$301+ 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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PRG
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This oojo deal was found by Cheapflights users on 1/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/242:39 pm
ONT
-
PRG
2 stops17h 51m
British Airways
Tue 3/39:20 pm
PRG
-
ONT
2 stops33h 59m
British Airways
Deal found 1/25$495
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Tue 2/241:45 pm
ONT
-
PRG
2 stops17h 20m
United Airlines
Tue 3/37:25 am
PRG
-
ONT
2 stops19h 16m
United Airlines
Deal found 1/26$510
This United Airlines deal was found by Cheapflights users on 1/24. 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 2/231:45 pm
ONT
-
PRG
2 stops15h 30m
United Airlines
Mon 3/210:25 am
PRG
-
ONT
2 stops18h 29m
United Airlines
Deal found 1/24$522
This oojo deal was found by Cheapflights users on 1/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1012:19 pm
ONT
-
PRG
2 stops22h 51m
British Airways
Thu 5/2110:05 am
PRG
-
ONT
2 stops20h 46m
British Airways
Deal found 1/25$525
This United Airlines deal was found by Cheapflights users on 1/26. 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 3/295:10 am
ONT
-
PRG
2 stops31h 10m
United Airlines
Mon 4/62:20 pm
PRG
-
ONT
2 stops36h 42m
United Airlines
Deal found 1/26$530
This United Airlines deal was found by Cheapflights users on 1/26. 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 3/286:37 pm
ONT
-
PRG
2 stops34h 03m
United Airlines
Mon 4/611:40 am
PRG
-
ONT
2 stops43h 46m
United Airlines
Deal found 1/26$543
This United Airlines deal was found by Cheapflights users on 1/26. 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 3/41:45 pm
ONT
-
PRG
2 stops17h 20m
United Airlines
Mon 3/910:25 am
PRG
-
ONT
2 stops20h 11m
United Airlines
Deal found 1/26$560
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/104:52 pm
ONT
-
PRG
2 stops18h 18m
British Airways
Sun 5/249:20 pm
PRG
-
ONT
2 stops33h 31m
British Airways
Deal found 1/26$585
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Tue 3/171:50 pm
ONT
-
PRG
2 stops18h 15m
United Airlines
Tue 3/316:10 am
PRG
-
ONT
2 stops20h 52m
United Airlines
Deal found 1/26$593
This United Airlines deal was found by Cheapflights users on 1/26. 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 5/1110:37 am
ONT
-
PRG
2 stops17h 08m
United Airlines
Tue 5/266:10 am
PRG
-
ONT
2 stops20h 08m
United Airlines
Deal found 1/26$595
This United Airlines deal was found by Cheapflights users on 1/26. 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 5/1110:37 am
ONT
-
PRG
2 stops17h 08m
United Airlines
Fri 5/226:15 am
PRG
-
ONT
2 stops20h 03m
United Airlines
Deal found 1/26$596
This United Airlines deal was found by Cheapflights users on 1/27. 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 4/51:27 pm
ONT
-
PRG
2 stops19h 28m
United Airlines
Tue 4/146:10 am
PRG
-
ONT
2 stops20h 52m
United Airlines
Deal found 1/27$606

Find 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$495
(oojo)

One-way from

$301
(British Airways)

Popular in

June

Cheapest in

February

Average price

$576
Provider with most accurate pricing for Los Angeles-Václav Havel Prague flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Václav Havel Prague flights.
Search Deals
From Ontario to Czech Republic
Search Deals
One-way flight from Ontario to Czech Republic
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($168 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 27, 2026.
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

Tue 3/3

1:45 pm-4:05 pm

2 stops17h 20m

Václav Havel Prague

Tue 3/10

7:25 am-8:50 pm

2 stops21h 25m

$510

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 4/5

1:34 pm-5:55 pm

2 stops19h 21m

Václav Havel Prague

Tue 4/14

11:40 am-9:50 pm

2 stops19h 10m

$522

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 3/12

6:15 am-10:25 pm

2 stops32h 10m

Václav Havel Prague

Tue 3/17

7:25 am-10:18 pm

2 stops22h 53m

$522

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 2/23

1:45 pm-2:15 pm

2 stops15h 30m

Václav Havel Prague

Mon 3/2

10:25 am-7:54 pm

2 stops18h 29m

$522

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 5/10

12:19 pm-8:10 pm

2 stops22h 51m

Václav Havel Prague

Thu 5/21

10:05 am-9:51 pm

2 stops20h 46m

$525

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 3/29

5:10 am-9:20 pm

2 stops31h 10m

Václav Havel Prague

Mon 4/6

2:20 pm-6:02 pm

2 stops36h 42m

$530

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sat 3/28

6:37 pm-1:40 pm

2 stops34h 03m

Václav Havel Prague

Mon 4/6

11:40 am-10:26 pm

2 stops43h 46m

$543

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 4/27

1:34 pm-4:05 pm

2 stops17h 31m

Václav Havel Prague

Mon 5/11

6:00 am-5:52 pm

2 stops20h 52m

$560

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 3/4

1:45 pm-4:05 pm

2 stops17h 20m

Václav Havel Prague

Mon 3/9

10:25 am-10:36 pm

2 stops20h 11m

$560

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 5/10

4:52 pm-8:10 pm

2 stops18h 18m

Václav Havel Prague

Sun 5/24

9:20 pm-9:51 pm

2 stops33h 31m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 22 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 $724). 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 $510, United Airlines can have you in Czech Republic from Ontario in 17h 20m. Ontario and Czech Republic are separated by a distance of 5917 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $724). 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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