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Prague

$370+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PRG
May 19 — May 261
Tue 5/19
Tue 5/26
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 April 19, 2026.

This United Airlines deal was found by Cheapflights users on 4/17. 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.
Wed 8/191:44 pm
ONT
-
PRG
2 stops18h 46m
United Airlines
Thu 12/1711:50 am
PRG
-
ONT
2 stops20h 16m
United Airlines
Deal found 4/17$743
This Air Canada deal was found by Cheapflights users on 4/18. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/239:01 am
ONT
-
PRG
2 stops16h 49m
Multiple Airlines
Wed 9/912:30 pm
PRG
-
ONT
2 stops19h 28m
Multiple Airlines
Deal found 4/18$761
This United Airlines deal was found by Cheapflights users on 4/15. 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 9/21:44 pm
ONT
-
PRG
2 stops18h 46m
United Airlines
Thu 9/176:00 am
PRG
-
ONT
2 stops21h 19m
United Airlines
Deal found 4/15$773
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Wed 8/191:44 pm
ONT
-
PRG
2 stops18h 46m
United Airlines
Wed 9/29:10 am
PRG
-
ONT
2 stops19h 54m
United Airlines
Deal found 4/17$774
This United Airlines deal was found by Cheapflights users on 4/14. 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 9/151:18 pm
ONT
-
PRG
2 stops17h 47m
United Airlines
Tue 9/299:10 am
PRG
-
ONT
2 stops22h 56m
United Airlines
Deal found 4/14$791
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Sun 10/181:49 pm
ONT
-
PRG
2 stops19h 06m
United Airlines
Sun 11/111:50 am
PRG
-
ONT
2 stops20h 16m
United Airlines
Deal found 4/17$793
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Sun 8/161:18 pm
ONT
-
PRG
2 stops23h 02m
United Airlines
Sun 8/3012:30 pm
PRG
-
ONT
2 stops38h 49m
United Airlines
Deal found 4/17$798
This United Airlines deal was found by Cheapflights users on 4/15. 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 9/161:44 pm
ONT
-
PRG
2 stops18h 46m
United Airlines
Wed 9/3011:30 am
PRG
-
ONT
2 stops20h 36m
United Airlines
Deal found 4/15$804
This United Airlines deal was found by Cheapflights users on 4/18. 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 11/291:00 pm
ONT
-
PRG
2 stops18h 05m
United Airlines
Wed 12/93:10 pm
PRG
-
ONT
2 stops16h 56m
United Airlines
Deal found 4/18$813
This United Airlines deal was found by Cheapflights users on 4/14. 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.
Thu 8/131:18 pm
ONT
-
PRG
2 stops15h 22m
United Airlines
Thu 8/272:30 pm
PRG
-
ONT
2 stops17h 28m
United Airlines
Deal found 4/14$823
This United Airlines deal was found by Cheapflights users on 4/17. 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 10/151:49 pm
ONT
-
PRG
2 stops18h 56m
United Airlines
Thu 10/297:35 am
PRG
-
ONT
2 stops20h 45m
United Airlines
Deal found 4/17$824

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 April 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$743
(United Airlines)

One-way from

$370
(oojo)

Popular in

June

Cheapest in

February

Average price

$647
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. 22% potential increase in price ($194 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 19, 2026.
Use the filters below to find and compare flights from Ontario to Prague that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 10/14

1:18 pm-1:30 pm

2 stops15h 12m

Václav Havel Prague

Wed 10/28

7:35 am-8:20 pm

2 stops20h 45m

$774

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 8/19

1:44 pm-5:30 pm

2 stops18h 46m

Václav Havel Prague

Thu 9/3

6:00 am-6:19 pm

2 stops21h 19m

$774

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 9/7

1:44 pm-5:40 pm

2 stops18h 56m

Václav Havel Prague

Fri 9/18

6:00 am-6:11 pm

2 stops21h 11m

$774

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 9/15

1:18 pm-4:05 pm

2 stops17h 47m

Václav Havel Prague

Tue 9/29

9:10 am-11:06 pm

2 stops22h 56m

$791

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 9/16

1:44 pm-5:30 pm

2 stops18h 46m

Václav Havel Prague

Wed 9/30

11:30 am-11:06 pm

2 stops20h 36m

$804

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sun 8/16

1:44 pm-5:55 pm

2 stops19h 11m

Václav Havel Prague

Sun 8/30

9:10 am-8:52 pm

2 stops20h 42m

$833

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 8/4

1:18 pm-2:00 pm

2 stops15h 42m

Václav Havel Prague

Tue 8/11

11:40 am-9:59 pm

2 stops19h 19m

$907

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 5/14

6:00 am-5:45 pm

2 stops26h 45m

Václav Havel Prague

Thu 5/21

6:00 am-9:55 pm

2 stops24h 55m

$940

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 5/19

9:50 am-9:45 pm

2 stops26h 55m

Václav Havel Prague

Sun 5/24

11:15 am-4:17 pm

2 stops38h 02m

$951
Quickest round-trip

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 9/7

1:18 pm-1:30 pm

2 stops15h 12m

Václav Havel Prague

Tue 9/22

2:20 pm-10:58 pm

2 stops17h 38m

$957

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3
  • 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.

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 15h 12m. 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.

See more FAQs

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