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$375+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PRG
Jul 16 — Jul 231
Thu 7/16
Thu 7/23
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 June 16, 2026.

This United Airlines deal was found by Cheapflights users on 6/12. 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 11/101:00 pm
ONT
-
PRG
2 stops18h 05m
United Airlines
Tue 11/242:50 pm
PRG
-
ONT
2 stops17h 16m
United Airlines
Deal found 6/12$729
This United Airlines deal was found by Cheapflights users on 6/14. 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 10/137:00 am
ONT
-
PRG
2 stops18h 50m
United Airlines
Tue 10/277:15 am
PRG
-
ONT
2 stops18h 32m
United Airlines
Deal found 6/14$760
This United Airlines deal was found by Cheapflights users on 6/12. 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 10/144:03 pm
ONT
-
PRG
2 stops16h 27m
United Airlines
Wed 10/287:15 am
PRG
-
ONT
2 stops18h 32m
United Airlines
Deal found 6/12$772
This United Airlines deal was found by Cheapflights users on 6/14. 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 8/76:10 am
ONT
-
PRG
2 stops19h 40m
United Airlines
Fri 8/219:10 am
PRG
-
ONT
2 stops19h 51m
United Airlines
Deal found 6/14$779
This United Airlines deal was found by Cheapflights users on 6/12. 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 12/166:00 am
ONT
-
PRG
2 stops31h 25m
United Airlines
Tue 12/292:50 pm
PRG
-
ONT
2 stops17h 16m
United Airlines
Deal found 6/12$790
This United Airlines deal was found by Cheapflights users on 6/12. 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 11/191:00 pm
ONT
-
PRG
2 stops16h 00m
United Airlines
Fri 11/2711:30 am
PRG
-
ONT
2 stops18h 51m
United Airlines
Deal found 6/12$791
This United Airlines deal was found by Cheapflights users on 6/13. 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 11/87:00 am
ONT
-
PRG
2 stops17h 40m
United Airlines
Sun 11/151:45 pm
PRG
-
ONT
2 stops18h 21m
United Airlines
Deal found 6/13$792
This United Airlines deal was found by Cheapflights users on 6/11. 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 9/137:00 am
ONT
-
PRG
2 stops18h 50m
United Airlines
Sun 9/2711:45 am
PRG
-
ONT
2 stops20h 14m
United Airlines
Deal found 6/11$820
This United Airlines deal was found by Cheapflights users on 6/13. 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 11/146:53 pm
ONT
-
PRG
2 stops36h 12m
United Airlines
Sat 11/281:45 pm
PRG
-
ONT
2 stops18h 21m
United Airlines
Deal found 6/13$821
This United Airlines deal was found by Cheapflights users on 6/12. 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 10/1711:10 am
ONT
-
PRG
2 stops19h 55m
United Airlines
Mon 11/211:30 am
PRG
-
ONT
2 stops18h 51m
United Airlines
Deal found 6/12$829
This United Airlines deal was found by Cheapflights users on 6/12. 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 10/1711:10 am
ONT
-
PRG
2 stops19h 55m
United Airlines
Sun 11/11:45 pm
PRG
-
ONT
2 stops18h 21m
United Airlines
Deal found 6/12$831
This BusinessClass deal was found by Cheapflights users on 6/13. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:00 am
ONT
-
PRG
2 stops31h 25m
Lufthansa
Fri 12/252:50 pm
PRG
-
ONT
2 stops17h 16m
Lufthansa
Deal found 6/13$834

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 June 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$729
(United Airlines)

One-way from

$375
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,099
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 ($236 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 16, 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

Fri 9/18

7:00 am-10:50 am

2 stops18h 50m

Václav Havel Prague

Sun 10/11

11:45 am-9:59 pm

2 stops19h 14m

$965

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 9/29

9:10 pm-8:20 am

2 stops26h 10m

Václav Havel Prague

Mon 10/5

7:20 pm-8:13 pm

2 stops33h 53m

$1,063

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 7/8

9:40 am-9:45 pm

2 stops27h 05m

Václav Havel Prague

Tue 7/14

2:30 pm-11:48 pm

2 stops42h 18m

$1,106

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 7/8

9:40 am-9:45 pm

2 stops27h 05m

Václav Havel Prague

Mon 7/13

6:00 am-6:30 pm

2 stops21h 30m

$1,107

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 8/4

11:51 pm-1:00 pm

2 stops52h 09m

Václav Havel Prague

Tue 8/18

9:15 am-11:11 pm

2 stops22h 56m

$1,108

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 8/2

11:58 pm-2:25 pm

2 stops29h 27m

Václav Havel Prague

Tue 8/18

9:15 am-11:11 pm

2 stops22h 56m

$1,123

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 9/14

9:10 pm-8:20 am

2 stops50h 10m

Václav Havel Prague

Tue 9/29

9:15 am-8:13 pm

2 stops43h 58m

$1,133

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 8/12

1:18 pm-5:30 pm

2 stops19h 12m

Václav Havel Prague

Mon 8/17

11:30 am-9:59 pm

2 stops19h 29m

$1,135

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 9/30

9:10 pm-8:20 am

2 stops26h 10m

Václav Havel Prague

Mon 10/5

9:15 am-8:13 pm

2 stops43h 58m

$1,188

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sat 7/4

6:10 am-10:50 am

2 stops19h 40m

Václav Havel Prague

Wed 7/15

1:20 pm-10:51 pm

2 stops18h 31m

$1,192

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 21 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 $760, United Airlines can have you in Czech Republic from Ontario in 18h 05m. 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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