HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Prague

$293+ 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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PRG
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Prague with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 3, 2026.

This oojo deal was found by Cheapflights users on 2/1. 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 3/22:39 pm
ONT
-
PRG
2 stops20h 56m
British Airways
Wed 3/116:50 am
PRG
-
ONT
2 stops25h 09m
British Airways
Deal found 2/1$498
This oojo deal was found by Cheapflights users on 1/31. 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.
Wed 8/54:54 pm
ONT
-
PRG
2 stops18h 56m
British Airways
Wed 8/2612:55 pm
PRG
-
ONT
2 stops36h 29m
British Airways
Deal found 1/31$503
This United Airlines deal was found by Cheapflights users on 2/3. 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 3/111:50 pm
ONT
-
PRG
2 stops18h 15m
United Airlines
Wed 3/187:30 am
PRG
-
ONT
2 stops18h 11m
United Airlines
Deal found 2/3$511
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/56:37 pm
ONT
-
PRG
2 stops18h 48m
United Airlines
Tue 3/107:25 am
PRG
-
ONT
2 stops21h 25m
United Airlines
Deal found 2/2$512
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/191:40 pm
ONT
-
PRG
2 stops24h 45m
United Airlines
Thu 3/266:50 am
PRG
-
ONT
2 stops23h 28m
United Airlines
Deal found 2/2$513
This United Airlines deal was found by Cheapflights users on 2/3. 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 3/126:15 am
ONT
-
PRG
2 stops32h 10m
United Airlines
Mon 3/233:10 pm
PRG
-
ONT
2 stops29h 08m
United Airlines
Deal found 2/3$523
This United Airlines deal was found by Cheapflights users on 2/1. 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 4/11:27 pm
ONT
-
PRG
2 stops19h 03m
United Airlines
Tue 4/149:10 am
PRG
-
ONT
2 stops21h 40m
United Airlines
Deal found 2/1$524
This United Airlines deal was found by Cheapflights users on 2/2. 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 8/51:00 pm
ONT
-
PRG
2 stops15h 30m
United Airlines
Wed 8/196:15 am
PRG
-
ONT
2 stops20h 03m
United Airlines
Deal found 2/2$526
This United Airlines deal was found by Cheapflights users on 2/1. 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 3/55:15 am
ONT
-
PRG
3 stops20h 10m
United Airlines
Mon 3/910:25 am
PRG
-
ONT
2 stops20h 11m
United Airlines
Deal found 2/1$532
This United Airlines deal was found by Cheapflights users on 2/3. 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 5/51:40 pm
ONT
-
PRG
2 stops17h 25m
United Airlines
Tue 5/196:10 am
PRG
-
ONT
2 stops23h 26m
United Airlines
Deal found 2/3$541
This United Airlines deal was found by Cheapflights users on 2/1. 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 8/47:00 am
ONT
-
PRG
2 stops18h 50m
United Airlines
Tue 8/189:10 am
PRG
-
ONT
2 stops22h 16m
United Airlines
Deal found 2/1$542
This United Airlines deal was found by Cheapflights users on 2/3. 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
Mon 4/62:20 pm
PRG
-
ONT
2 stops36h 42m
United Airlines
Deal found 2/3$544

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 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$498
(oojo)

One-way from

$293
(oojo)

Popular in

June

Cheapest in

February

Average price

$494
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 ($162 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 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 3, 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

Mon 3/2

2:39 pm-8:35 pm

2 stops20h 56m

Václav Havel Prague

Wed 3/11

6:50 am-11:59 pm

2 stops25h 09m

$498

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 3/11

1:50 pm-4:05 pm

2 stops18h 15m

Václav Havel Prague

Wed 3/18

7:30 am-5:41 pm

2 stops18h 11m

$511

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 4/13

1:34 pm-4:05 pm

2 stops17h 31m

Václav Havel Prague

Tue 4/21

6:10 am-6:02 pm

2 stops20h 52m

$511

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 3/5

6:37 pm-10:25 pm

2 stops18h 48m

Václav Havel Prague

Tue 3/10

7:25 am-8:50 pm

2 stops21h 25m

$512

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 3/5

6:37 pm-10:25 pm

2 stops18h 48m

Václav Havel Prague

Thu 3/19

7:35 am-5:41 pm

2 stops18h 06m

$512

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

$512

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Wed 3/18

6:00 am-1:05 pm

2 stops23h 05m

Václav Havel Prague

Wed 3/25

7:30 am-10:36 pm

2 stops23h 06m

$512

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Tue 3/3

1:45 pm-4:05 pm

2 stops17h 20m

Václav Havel Prague

Wed 3/11

7:30 am-5:41 pm

2 stops18h 11m

$512

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Mon 3/2

1:45 pm-4:05 pm

2 stops17h 20m

Václav Havel Prague

Mon 3/9

7:35 am-5:35 pm

2 stops18h 00m

$512

OntarioPrague

ONT - PRG

ONTPRG

Ontario

Thu 3/12

6:15 am-10:25 pm

2 stops32h 10m

Václav Havel Prague

Mon 3/23

3:10 pm-12:18 pm

2 stops29h 08m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 22 results
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 $740). 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 18h 15m. 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 $740). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights