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$269+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PRG
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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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 November 26, 2025.

This United Airlines deal was found by Cheapflights users on 11/24. 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 11/299:35 pmONT - PRG
2 stops39h 50mUnited Airlines
Sun 12/73:00 pmPRG - ONT
3 stops40h 49mUnited Airlines
Deal found 11/24$697
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Thu 11/277:00 amONT - PRG
2 stops30h 25mUnited Airlines
Fri 12/57:35 amPRG - ONT
2 stops22h 07mUnited Airlines
Deal found 11/24$705
This Delta deal was found by Cheapflights users on 11/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/296:00 amONT - PRG
2 stops26h 05mDelta
Sun 12/76:00 amPRG - ONT
2 stops26h 58mDelta
Deal found 11/25$706
This United Airlines deal was found by Cheapflights users on 11/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/261:29 pmONT - PRG
2 stops15h 36mUnited Airlines
Wed 12/36:15 amPRG - ONT
2 stops20h 22mUnited Airlines
Deal found 11/25$719
This United Airlines deal was found by Cheapflights users on 11/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:59 pmONT - PRG
2 stops37h 26mUnited Airlines
Sat 1/103:10 pmPRG - ONT
2 stops39h 48mUnited Airlines
Deal found 11/25$803
This United Airlines deal was found by Cheapflights users on 11/26. 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 12/2810:42 amONT - PRG
2 stops26h 43mUnited Airlines
Sun 1/113:00 pmPRG - ONT
2 stops39h 58mUnited Airlines
Deal found 11/26$825
This United Airlines deal was found by Cheapflights users on 11/26. 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 11/261:29 pmONT - PRG
2 stops23h 56mUnited Airlines
Sun 11/303:00 pmPRG - ONT
2 stops39h 47mUnited Airlines
Deal found 11/26$1,047
This United Airlines deal was found by Cheapflights users on 11/23. 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.
Sat 12/131:34 pmONT - PRG
2 stops15h 31mUnited Airlines
Tue 12/236:15 amPRG - ONT
2 stops20h 28mUnited Airlines
Deal found 11/23$1,088
This United Airlines deal was found by Cheapflights users on 11/23. 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 11/276:00 amONT - PRG
2 stops23h 40mUnited Airlines
Sun 11/303:00 pmPRG - ONT
2 stops39h 47mUnited Airlines
Deal found 11/23$1,146
This United Airlines deal was found by Cheapflights users on 11/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/275:05 amONT - PRG
2 stops24h 00mUnited Airlines
Wed 1/73:10 pmPRG - ONT
2 stops39h 48mUnited Airlines
Deal found 11/25$1,161

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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$445
(oojo)

One-way from

$269
(oojo)

Popular in

June

Cheapest in

November

Average price

$593
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. 15% potential increase in price ($137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 26, 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

Wed 2/4

12:41 pm-5:05 pm

2 stops19h 24m

Václav Havel Prague

Sun 2/8

8:55 am-12:16 pm

2 stops60h 21m

$496

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Fri 1/16

6:00 am-1:05 pm

2 stops22h 05m

Václav Havel Prague

Sat 1/24

3:10 pm-10:53 pm

2 stops16h 43m

$506

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 1/8

6:39 pm-10:25 pm

2 stops18h 46m

Václav Havel Prague

Thu 1/15

7:35 am-9:58 pm

2 stops23h 23m

$506

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 3/3

5:00 am-1:55 pm

3 stops23h 55m

Václav Havel Prague

Tue 3/10

7:25 am-10:57 pm

2 stops23h 32m

$532

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Fri 2/27

1:45 pm-4:05 pm

2 stops17h 20m

Václav Havel Prague

Sun 3/8

6:15 am-9:36 pm

2 stops24h 21m

$535

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sat 1/10

1:24 pm-2:15 pm

2 stops39h 51m

Václav Havel Prague

Sat 1/17

3:10 pm-10:53 pm

2 stops40h 43m

$538

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 4/13

7:00 am-10:50 am

2 stops18h 50m

Václav Havel Prague

Wed 4/29

2:30 pm-11:06 pm

2 stops17h 36m

$542

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sat 2/28

1:45 pm-4:05 pm

2 stops17h 20m

Václav Havel Prague

Sun 3/8

6:15 am-9:25 pm

2 stops24h 10m

$560

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 2/26

6:37 pm-10:25 pm

2 stops18h 48m

Václav Havel Prague

Thu 3/12

7:35 am-8:50 pm

2 stops21h 15m

$589

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 2/23

3:19 pm-5:30 pm

2 stops17h 11m

Václav Havel Prague

Mon 3/9

9:35 pm-10:07 pm

2 stops32h 32m

$605

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 20 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 $708). 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 $496, Delta can have you in Czech Republic from Ontario in 19h 24m. 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 $708). 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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