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$289+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PRG
Apr 6 — Apr 131
Mon 4/6
Mon 4/13
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 March 7, 2026.

This United Airlines deal was found by Cheapflights users on 3/4. 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 5/47:00 am
ONT
-
PRG
2 stops16h 55m
United Airlines
Tue 5/122:20 pm
PRG
-
ONT
2 stops17h 39m
United Airlines
Deal found 3/4$530
This United Airlines deal was found by Cheapflights users on 3/3. 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 8/237:00 am
ONT
-
PRG
2 stops16h 55m
United Airlines
Tue 9/12:20 pm
PRG
-
ONT
2 stops17h 38m
United Airlines
Deal found 3/3$562
This United Airlines deal was found by Cheapflights users on 3/2. 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 9/21:18 pm
ONT
-
PRG
2 stops19h 12m
United Airlines
Wed 9/162:35 pm
PRG
-
ONT
2 stops17h 23m
United Airlines
Deal found 3/2$574
This Delta deal was found by Cheapflights users on 3/7. 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.
Tue 4/212:20 pm
ONT
-
PRG
2 stops22h 25m
Delta
Tue 4/286:00 am
PRG
-
ONT
2 stops25h 37m
Delta
Deal found 3/7$577
This United Airlines deal was found by Cheapflights users on 3/6. 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 11/295:00 am
ONT
-
PRG
2 stops32h 25m
United Airlines
Thu 12/177:35 am
PRG
-
ONT
2 stops23h 51m
United Airlines
Deal found 3/6$579
This United Airlines deal was found by Cheapflights users on 3/4. 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 4/271:34 pm
ONT
-
PRG
2 stops17h 31m
United Airlines
Mon 5/116:00 am
PRG
-
ONT
2 stops23h 36m
United Airlines
Deal found 3/4$580
This Finnair deal was found by Cheapflights users on 3/2. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:00 am
ONT
-
PRG
2 stops27h 45m
Multiple Airlines
Fri 4/248:40 am
PRG
-
ONT
2 stops24h 06m
Multiple Airlines
Deal found 3/2$582
This United Airlines deal was found by Cheapflights users on 3/2. 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 4/111:27 pm
ONT
-
PRG
2 stops46h 53m
United Airlines
Sun 4/196:10 am
PRG
-
ONT
2 stops39h 10m
United Airlines
Deal found 3/2$586
This Delta deal was found by Cheapflights users on 3/3. 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.
Tue 7/72:00 pm
ONT
-
PRG
2 stops22h 45m
Delta
Tue 9/86:00 am
PRG
-
ONT
2 stops20h 16m
Delta
Deal found 3/3$588
This United Airlines deal was found by Cheapflights users on 3/6. 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 4/81:27 pm
ONT
-
PRG
2 stops19h 03m
United Airlines
Wed 4/156:10 am
PRG
-
ONT
2 stops20h 37m
United Airlines
Deal found 3/6$591
This United Airlines deal was found by Cheapflights users on 3/4. 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 4/241:27 pm
ONT
-
PRG
2 stops19h 23m
United Airlines
Fri 5/82:30 pm
PRG
-
ONT
2 stops17h 29m
United Airlines
Deal found 3/4$592

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 March 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$530
(United Airlines)

One-way from

$289
(United Airlines)
Provider with most accurate pricing for Ontario-Václav Havel Prague flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Václav Havel Prague flights.
Search Deals
From Ontario to Czech Republic
Search Deals
One-way flight from Ontario to Czech Republic
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 March 7, 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

Wed 9/2

1:18 pm-5:30 pm

2 stops19h 12m

Václav Havel Prague

Wed 9/16

2:35 pm-10:58 pm

2 stops17h 23m

$574

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sat 4/11

1:27 pm-9:20 pm

2 stops46h 53m

Václav Havel Prague

Sun 4/19

6:10 am-12:20 pm

2 stops39h 10m

$586

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 4/22

1:34 pm-4:05 pm

2 stops17h 31m

Václav Havel Prague

Fri 5/8

11:45 am-10:59 pm

2 stops20h 14m

$614

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 4/20

1:27 pm-5:40 pm

2 stops19h 13m

Václav Havel Prague

Sat 5/9

6:00 am-6:01 pm

2 stops21h 01m

$641
Quickest round-trip

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 8/31

1:18 pm-1:30 pm

2 stops15h 12m

Václav Havel Prague

Mon 9/14

11:30 am-10:58 pm

2 stops20h 28m

$665

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sat 4/18

1:27 pm-5:50 pm

2 stops19h 23m

Václav Havel Prague

Sat 5/9

6:00 am-6:01 pm

2 stops21h 01m

$691

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 5/18

1:30 pm-5:40 pm

2 stops19h 10m

Václav Havel Prague

Wed 5/27

11:30 am-9:55 pm

2 stops19h 25m

$774

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 5/17

6:00 am-9:20 pm

2 stops30h 20m

Václav Havel Prague

Fri 7/10

6:00 am-10:46 pm

2 stops25h 46m

$786

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 4/12

1:34 pm-9:20 pm

2 stops22h 46m

Václav Havel Prague

Fri 4/17

9:10 am-9:50 pm

2 stops21h 40m

$802

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 3/22

11:59 pm-10:50 am

2 stops26h 51m

Václav Havel Prague

Thu 4/2

9:10 am-8:36 pm

2 stops20h 26m

$851

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $574, United Airlines can have you in Czech Republic from Ontario in 19h 12m. 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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