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Prague

$261+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PRG
Mar 31 — Apr 71
Tue 3/31
Tue 4/7
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 March 1, 2026.

This United Airlines deal was found by Cheapflights users on 2/26. 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 3/3011:05 am
ONT
-
PRG
2 stops16h 40m
United Airlines
Tue 4/711:40 am
PRG
-
ONT
2 stops19h 10m
United Airlines
Deal found 2/26$510
This Delta deal was found by Cheapflights users on 2/28. 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 4/1411:53 am
ONT
-
PRG
2 stops22h 42m
Delta
Tue 4/216:00 am
PRG
-
ONT
2 stops26h 44m
Delta
Deal found 2/28$528
This United Airlines deal was found by Cheapflights users on 2/26. 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 3/3011:05 am
ONT
-
PRG
2 stops16h 40m
United Airlines
Mon 4/139:05 am
PRG
-
ONT
2 stops20h 31m
United Airlines
Deal found 2/26$560
This United Airlines deal was found by Cheapflights users on 2/25. 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.
Mon 3/3011:05 am
ONT
-
PRG
2 stops16h 40m
United Airlines
Sun 4/56:15 am
PRG
-
ONT
2 stops20h 32m
United Airlines
Deal found 2/25$562
This United Airlines deal was found by Cheapflights users on 2/28. 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 12/235:00 am
ONT
-
PRG
2 stops24h 20m
United Airlines
Tue 12/297:35 am
PRG
-
ONT
2 stops37h 45m
United Airlines
Deal found 2/28$574
This United Airlines deal was found by Cheapflights users on 2/28. 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 4/211:34 pm
ONT
-
PRG
2 stops22h 46m
United Airlines
Mon 4/276:00 am
PRG
-
ONT
2 stops24h 50m
United Airlines
Deal found 2/28$581
This United Airlines deal was found by Cheapflights users on 2/28. 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 12/235:00 am
ONT
-
PRG
2 stops24h 20m
United Airlines
Mon 12/281:45 pm
PRG
-
ONT
2 stops42h 21m
United Airlines
Deal found 2/28$585
This Delta deal was found by Cheapflights users on 2/28. 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 7/711:55 am
ONT
-
PRG
2 stops24h 50m
Delta
Tue 9/86:00 am
PRG
-
ONT
2 stops20h 16m
Delta
Deal found 2/28$588
This KAYAK deal was found by Cheapflights users on 2/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:05 am
ONT
-
PRG
2 stops21h 25m
Lufthansa
Fri 5/82:30 pm
PRG
-
ONT
2 stops17h 29m
Lufthansa
Deal found 2/27$592
This United Airlines deal was found by Cheapflights users on 2/28. 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 4/201:27 pm
ONT
-
PRG
2 stops19h 13m
United Airlines
Mon 5/46:00 am
PRG
-
ONT
2 stops20h 52m
United Airlines
Deal found 2/28$593
This United Airlines deal was found by Cheapflights users on 2/25. 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.
Sun 3/2911:05 am
ONT
-
PRG
2 stops21h 50m
United Airlines
Sat 4/42:40 pm
PRG
-
ONT
2 stops40h 46m
United Airlines
Deal found 2/25$594

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 March 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$500
(American Airlines)

One-way from

$261
(oojo)

Popular in

June

Cheapest in

February

Average price

$653
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 ($164 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 1, 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

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 3/30

11:05 am-12:45 pm

2 stops16h 40m

Václav Havel Prague

Tue 4/7

11:40 am-9:50 pm

2 stops19h 10m

$510

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 4/9

11:05 am-4:05 pm

2 stops20h 00m

Václav Havel Prague

Thu 4/23

11:40 am-9:50 pm

2 stops19h 10m

$560

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 4/14

11:05 am-12:45 pm

2 stops16h 40m

Václav Havel Prague

Tue 4/21

9:10 am-10:26 pm

2 stops22h 16m

$594

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 4/21

1:34 pm-4:05 pm

2 stops17h 31m

Václav Havel Prague

Tue 5/5

9:10 am-10:59 pm

2 stops22h 49m

$614

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 4/14

5:10 am-9:20 pm

2 stops31h 10m

Václav Havel Prague

Sun 4/26

6:10 am-9:56 am

2 stops36h 46m

$669

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Sat 5/9

5:00 am-9:20 pm

2 stops31h 20m

Václav Havel Prague

Sat 5/16

6:00 am-10:59 pm

2 stops25h 59m

$677

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 3/30

11:05 am-12:45 pm

2 stops16h 40m

Václav Havel Prague

Mon 4/6

6:15 am-5:47 pm

2 stops20h 32m

$695

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 7/28

6:30 am-10:50 am

2 stops19h 20m

Václav Havel Prague

Tue 8/11

9:10 am-9:59 pm

2 stops21h 49m

$696

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 4/1

1:27 pm-5:30 pm

2 stops19h 03m

Václav Havel Prague

Tue 4/7

11:40 am-9:50 pm

2 stops19h 10m

$706

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 4/15

7:00 am-9:20 pm

2 stops29h 20m

Václav Havel Prague

Wed 4/22

6:10 am-10:31 pm

2 stops25h 21m

$714

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

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.

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 $698). 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 16h 40m. 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 $698). 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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