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$373+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PRG
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
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 July 24, 2026.

This United Airlines deal was found by Cheapflights users on 7/24. 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.
Tue 11/31:29 pm
ONT
-
PRG
2 stops17h 36m
United Airlines
Tue 11/177:15 am
PRG
-
ONT
2 stops20h 32m
United Airlines
Deal found 7/24$732
This United Airlines deal was found by Cheapflights users on 7/22. 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 11/11:13 pm
ONT
-
PRG
2 stops17h 52m
United Airlines
Thu 11/1211:30 am
PRG
-
ONT
2 stops19h 20m
United Airlines
Deal found 7/22$733
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Wed 10/141:24 pm
ONT
-
PRG
2 stops19h 06m
United Airlines
Tue 10/276:50 am
PRG
-
ONT
2 stops19h 57m
United Airlines
Deal found 7/24$775
This United Airlines deal was found by Cheapflights users on 7/20. 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 10/1911:10 am
ONT
-
PRG
2 stops19h 50m
United Airlines
Mon 11/211:30 am
PRG
-
ONT
2 stops19h 20m
United Airlines
Deal found 7/20$778
This United Airlines deal was found by Cheapflights users on 7/23. 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 10/251:13 pm
ONT
-
PRG
2 stops18h 52m
United Airlines
Sun 11/87:15 am
PRG
-
ONT
2 stops20h 14m
United Airlines
Deal found 7/23$782
This United Airlines deal was found by Cheapflights users on 7/21. 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 10/2311:10 am
ONT
-
PRG
2 stops19h 50m
United Airlines
Fri 11/611:30 am
PRG
-
ONT
2 stops19h 20m
United Airlines
Deal found 7/21$783
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Wed 9/161:56 pm
ONT
-
PRG
2 stops18h 34m
United Airlines
Wed 9/3011:30 am
PRG
-
ONT
2 stops20h 29m
United Airlines
Deal found 7/24$806
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Sat 11/214:17 pm
ONT
-
PRG
2 stops45h 08m
United Airlines
Sun 12/67:15 am
PRG
-
ONT
2 stops24h 51m
United Airlines
Deal found 7/24$812
This United Airlines deal was found by Cheapflights users on 7/23. 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 12/241:42 pm
ONT
-
PRG
2 stops17h 23m
United Airlines
Thu 1/77:15 am
PRG
-
ONT
2 stops22h 05m
United Airlines
Deal found 7/23$813
This United Airlines deal was found by Cheapflights users on 7/22. 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 9/117:00 am
ONT
-
PRG
2 stops18h 50m
United Airlines
Fri 9/2511:45 am
PRG
-
ONT
2 stops20h 14m
United Airlines
Deal found 7/22$814
This Air Canada deal was found by Cheapflights users on 7/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:01 am
ONT
-
PRG
2 stops16h 49m
Multiple Airlines
Sat 9/1912:30 pm
PRG
-
ONT
2 stops19h 29m
Multiple Airlines
Deal found 7/20$820
This United Airlines deal was found by Cheapflights users on 7/20. 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 12/2511:20 am
ONT
-
PRG
2 stops17h 40m
United Airlines
Thu 1/711:30 am
PRG
-
ONT
2 stops18h 51m
United Airlines
Deal found 7/20$821

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 July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$728
(United Airlines)

One-way from

$373
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$880
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. 24% potential increase in price ($231 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 24, 2026.
Use the filters below to find and compare flights from Ontario to the Czech Republic that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 10/22

9:25 am-12:40 pm

2 stops18h 15m

Václav Havel Prague

Thu 11/5

11:30 am-9:50 pm

2 stops19h 20m

$778

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 9/13

7:00 am-10:50 am

2 stops18h 50m

Václav Havel Prague

Sun 9/27

11:45 am-10:59 pm

2 stops20h 14m

$824

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 9/6

5:00 am-9:20 pm

2 stops31h 20m

Václav Havel Prague

Sun 9/13

11:45 am-9:59 pm

2 stops19h 14m

$903

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 8/6

7:00 am-9:25 pm

2 stops29h 25m

Václav Havel Prague

Thu 9/10

8:50 am-8:24 pm

2 stops20h 34m

$951

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 8/27

9:01 am-12:40 pm

2 stops18h 39m

Václav Havel Prague

Sun 8/30

9:10 am-6:11 pm

2 stops18h 01m

$956

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 8/10

6:00 am-12:40 pm

2 stops21h 40m

Václav Havel Prague

Wed 8/19

12:30 pm-9:59 pm

2 stops42h 29m

$977

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 9/9

1:56 pm-5:30 pm

2 stops18h 34m

Václav Havel Prague

Wed 9/23

9:35 am-6:16 pm

2 stops17h 41m

$992
Quickest round-trip

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Fri 8/7

5:05 pm-5:40 pm

2 stops15h 35m

Václav Havel Prague

Tue 8/25

6:00 am-4:24 pm

2 stops19h 24m

$1,006

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Fri 8/7

10:00 pm-9:00 am

2 stops26h 00m

Václav Havel Prague

Thu 8/27

11:00 am-10:42 am

2 stops32h 42m

$1,010

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 9/7

11:50 pm-6:25 pm

2 stops33h 35m

Václav Havel Prague

Tue 9/22

3:20 pm-8:13 pm

2 stops37h 53m

$1,015

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/19

Showing 1-10 of 23 resultsSorted by cheapest first
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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

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 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 $728, United Airlines can have you in Czech Republic from Ontario in 18h 32m. 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.

See more FAQs

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