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Prague

$301+ Cheap flights from Ontario (ONT) to Prague (PRG)

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 Prague

Cheapest flights from Ontario to Prague
Explore the most affordable flight options available from Ontario to Prague. 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 Prague

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Prague (PRG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data 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 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 Václav Havel Prague
Search Deals
One-way flight from Ontario to Václav Havel Prague
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 Prague 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 Prague that are best for you.

Fly from

Ontario

Fly to

Prague

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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Compare providers for flights from Ontario to Prague

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Prague in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Prague flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Prague flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Prague flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Prague flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Prague flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Prague

Have a flexible travel schedule? Discover the best time to fly to Prague 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 Prague

What is the cheapest month to book a flight from Ontario to Prague?

Currently, November is the cheapest month in which you can book a flight from Ontario to Prague (average of $424). Flying from Ontario to Prague 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 Prague. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Prague?

    Departing from Ontario to Prague will take you 17h 20m. The distance between Ontario and Prague is about 5917 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Ontario to Prague that include hotel bookings?

    Yes. In addition to deals on Ontario to Prague flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Prague?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Prague.

  • Can I find deals for business class flights from Ontario to Prague?

    Yes. Cheapflights offers flight deals from Ontario to Prague 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 Prague?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Prague (average of $424). Flying from Ontario to Prague 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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