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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
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
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 February 18, 2026.

This oojo deal was found by Cheapflights users on 2/16. 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 4/55:02 pm
ONT
-
PRG
2 stops21h 13m
British Airways
Wed 4/155:15 pm
PRG
-
ONT
2 stops37h 44m
British Airways
Deal found 2/16$497
This American Airlines deal was found by Cheapflights users on 2/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/82:08 pm
ONT
-
PRG
2 stops21h 42m
American Airlines
Wed 4/158:40 am
PRG
-
ONT
2 stops22h 56m
American Airlines
Deal found 2/17$501
This United Airlines deal was found by Cheapflights users on 2/15. 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 3/165:15 am
ONT
-
PRG
2 stops26h 50m
United Airlines
Mon 3/233:10 pm
PRG
-
ONT
2 stops29h 08m
United Airlines
Deal found 2/15$511
This United Airlines deal was found by Cheapflights users on 2/15. 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 4/71:27 pm
ONT
-
PRG
2 stops19h 23m
United Airlines
Thu 5/79:10 am
PRG
-
ONT
2 stops21h 48m
United Airlines
Deal found 2/15$524
This oojo deal was found by Cheapflights users on 2/16. 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.
Mon 9/71:00 pm
ONT
-
PRG
2 stops35h 30m
British Airways
Fri 10/210:10 am
PRG
-
ONT
2 stops20h 40m
British Airways
Deal found 2/16$527
This United Airlines deal was found by Cheapflights users on 2/15. 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 3/255:15 am
ONT
-
PRG
2 stops33h 10m
United Airlines
Mon 3/302:20 pm
PRG
-
ONT
2 stops40h 30m
United Airlines
Deal found 2/15$544
This United Airlines deal was found by Cheapflights users on 2/17. 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 5/111:30 pm
ONT
-
PRG
2 stops19h 10m
United Airlines
Wed 5/202:35 pm
PRG
-
ONT
2 stops17h 24m
United Airlines
Deal found 2/17$554
This United Airlines deal was found by Cheapflights users on 2/17. 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 4/911:05 am
ONT
-
PRG
2 stops16h 40m
United Airlines
Thu 4/2311:40 am
PRG
-
ONT
2 stops19h 10m
United Airlines
Deal found 2/17$561
This United Airlines deal was found by Cheapflights users on 2/17. 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 4/1311:05 am
ONT
-
PRG
2 stops16h 40m
United Airlines
Sun 4/266:15 am
PRG
-
ONT
2 stops20h 32m
United Airlines
Deal found 2/17$563
This United Airlines deal was found by Cheapflights users on 2/15. 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 12/266:53 pm
ONT
-
PRG
2 stops33h 12m
United Airlines
Sat 1/97:35 am
PRG
-
ONT
2 stops37h 45m
United Airlines
Deal found 2/15$567
This United Airlines deal was found by Cheapflights users on 2/16. 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 3/2811:59 pm
ONT
-
PRG
2 stops32h 56m
United Airlines
Sun 4/511:45 am
PRG
-
ONT
2 stops19h 05m
United Airlines
Deal found 2/16$574
This United Airlines deal was found by Cheapflights users on 2/15. 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 4/211:27 pm
ONT
-
PRG
2 stops19h 23m
United Airlines
Sun 4/266:15 am
PRG
-
ONT
2 stops20h 32m
United Airlines
Deal found 2/15$575

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 February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$497
(oojo)

One-way from

$301
(Iberia)

Popular in

June

Cheapest in

February

Average price

$502
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. 18% potential increase in price ($160 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 February 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 February 18, 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

Wed 4/1

5:10 am-9:20 pm

2 stops31h 10m

Václav Havel Prague

Wed 4/8

9:10 am-9:50 pm

2 stops21h 40m

$511

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 3/16

5:15 am-4:05 pm

2 stops26h 50m

Václav Havel Prague

Mon 3/23

3:10 pm-12:18 pm

2 stops29h 08m

$511

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 4/13

11:05 am-12:45 pm

2 stops16h 40m

Václav Havel Prague

Tue 4/21

11:40 am-9:50 pm

2 stops19h 10m

$511

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 4/8

11:05 am-12:45 pm

2 stops16h 40m

Václav Havel Prague

Wed 4/15

11:30 am-9:50 pm

2 stops19h 20m

$511

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 4/7

1:27 pm-5:50 pm

2 stops19h 23m

Václav Havel Prague

Tue 4/21

6:10 am-6:02 pm

2 stops20h 52m

$524

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 5/3

1:30 pm-5:55 pm

2 stops19h 25m

Václav Havel Prague

Wed 5/13

11:30 am-10:59 pm

2 stops20h 29m

$524

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 3/25

5:15 am-10:25 pm

2 stops33h 10m

Václav Havel Prague

Mon 3/30

2:20 pm-9:50 pm

2 stops40h 30m

$544

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 4/15

1:27 pm-5:30 pm

2 stops19h 03m

Václav Havel Prague

Thu 5/14

9:10 am-10:59 pm

2 stops22h 49m

$554

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Fri 4/3

6:05 am-4:05 pm

2 stops25h 00m

Václav Havel Prague

Fri 4/10

11:45 am-9:50 pm

2 stops19h 05m

$561

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 4/9

1:34 pm-4:05 pm

2 stops17h 31m

Václav Havel Prague

Thu 4/23

9:10 am-9:50 pm

2 stops21h 40m

$561

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/15

Showing 1-10 of 20 results
1
2
  • 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 $697). 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 31h 10m. The distance between Ontario and Prague is about 5917 mi.

  • 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 $697). 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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