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$483+ Cheap flights from Prague (PRG) to Ontario (ONT)

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
PRG — ONT
Nov 5 — Nov 121
Wed 11/5
Wed 11/12
1 adult, Economy
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Cheap flight deals from Prague to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Prague (PRG) to Ontario (ONT). 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 October 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$745
(United Airlines)

One-way from

$483
(British Airways)

Popular in

July

Cheapest in

February

Average price

$710
Provider with most accurate pricing for Václav Havel Prague-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Václav Havel Prague-Los Angeles flights.
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From Václav Havel Prague to Ontario
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One-way flight from Václav Havel Prague to Ontario
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Highest demand for flights based on searches. 6% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Prague to Ontario

Cheapest flights from Prague to Ontario
Explore the most affordable flight options available from Prague to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 6, 2025.

This United Airlines deal was found by Cheapflights users on 10/6. 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.
Fri 10/1711:40 amPRG - ONT
2 stops18h 44mUnited Airlines
Sun 10/196:36 pmONT - PRG
2 stops36h 24mUnited Airlines
Deal found 10/6$745
This United Airlines deal was found by Cheapflights users on 10/6. 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 10/2011:40 amPRG - ONT
2 stops20h 12mUnited Airlines
Thu 10/231:15 pmONT - PRG
2 stops19h 35mUnited Airlines
Deal found 10/6$747
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Fri 11/147:35 amPRG - ONT
2 stops23h 56mUnited Airlines
Tue 11/187:00 amONT - PRG
2 stops19h 25mUnited Airlines
Deal found 10/5$754
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/113:05 pmPRG - ONT
2 stops16h 46mUnited Airlines
Thu 2/261:00 pmONT - PRG
2 stops18h 05mUnited Airlines
Deal found 10/6$756
This KLM deal was found by Cheapflights users on 10/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:00 amPRG - ONT
2 stops17h 53mKLM
Wed 11/127:05 amONT - PRG
2 stops16h 20mKLM
Deal found 10/6$839
This United Airlines deal was found by Cheapflights users on 10/5. 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 12/71:45 pmPRG - ONT
2 stops18h 04mUnited Airlines
Sat 12/131:34 pmONT - PRG
2 stops15h 31mUnited Airlines
Deal found 10/5$1,229
This KLM deal was found by Cheapflights users on 10/5. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/59:25 pmPRG - ONT
2 stops28h 45mKLM
Sun 11/27:05 amONT - PRG
2 stops16h 20mKLM
Deal found 10/5$1,852

Cheapflights Fare Finder

 
Customize your flight search to find flights from Prague to Ontario 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 October 6, 2025.
Use the filters below to find and compare flights from Prague to Ontario that are best for you.

Fly from

Prague

Fly to

Ontario

Route

Depart

Return

Price

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Fri 10/17

11:40 am-9:24 pm

2 stops18h 44m

Ontario

Sun 10/19

6:36 pm-4:00 pm

2 stops36h 24m

$745

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Mon 10/20

11:40 am-10:52 pm

2 stops20h 12m

Ontario

Thu 10/23

1:15 pm-5:50 pm

2 stops19h 35m

$747

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Fri 11/14

7:35 am-10:31 pm

2 stops23h 56m

Ontario

Tue 11/18

7:00 am-2:05 pm

2 stops22h 05m

$754

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Tue 11/11

3:05 pm-10:51 pm

2 stops16h 46m

Ontario

Thu 2/26

1:00 pm-4:05 pm

2 stops18h 05m

$756

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Thu 10/30

6:00 am-3:53 pm

2 stops17h 53m

Ontario

Wed 11/12

7:05 am-8:25 am

2 stops16h 20m

$839

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Thu 1/15

6:45 am-6:45 pm

2 stops21h 00m

$483

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Tue 12/2

6:45 am-6:22 pm

2 stops20h 37m

$557

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Tue 12/2

6:45 am-11:19 am

2 stops37h 34m

$657

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Fri 3/27

6:00 am-11:43 pm

2 stops25h 43m

$695

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Fri 11/7

11:00 am-10:29 pm

2 stops20h 29m

$713

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 15 results
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Best time to book a flight from Prague to Ontario

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

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

Currently, May is the cheapest month in which you can book a flight from Prague to Ontario (average of $494). Flying from Prague to Ontario in July is currently the most expensive (average of $705). 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 Prague to Ontario. 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 Prague to Ontario?

    For as low as $745, United Airlines can have you in Ontario from Prague in 18h 44m. The distance between Prague and Ontario is about 5917 mi.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Prague to Ontario (average of $494). Flying from Prague to Ontario in July is currently the most expensive (average of $705). 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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