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$692+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
PRG — ONT
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$703
(American Airlines)

One-way from

$692
(British Airways)

Popular in

December

Cheapest in

May

Average price

$851
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. 4% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 18, 2025.

This American Airlines deal was found by Cheapflights users on 8/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/231:55 pmPRG - ONT
2 stops19h 02mAmerican Airlines
Sat 12/2711:00 amONT - PRG
2 stops26h 50mAmerican Airlines
Deal found 8/16$703
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 10/96:00 amPRG - ONT
2 stops24h 24mUnited Airlines
Mon 10/139:36 amONT - PRG
2 stops21h 24mUnited Airlines
Deal found 8/18$706
This United Airlines deal was found by Cheapflights users on 8/15. 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 12/1511:50 amPRG - ONT
2 stops33h 27mUnited Airlines
Sun 1/117:00 amONT - PRG
2 stops19h 10mUnited Airlines
Deal found 8/15$707
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Wed 10/86:00 amPRG - ONT
3 stops20h 23mUnited Airlines
Fri 10/176:36 pmONT - PRG
2 stops34h 04mUnited Airlines
Deal found 8/18$708
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Fri 11/143:15 pmPRG - ONT
2 stops16h 36mUnited Airlines
Tue 11/187:00 amONT - PRG
2 stops22h 05mUnited Airlines
Deal found 8/17$714
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Sun 12/147:25 amPRG - ONT
2 stops24h 24mUnited Airlines
Fri 1/96:42 pmONT - PRG
2 stops18h 43mUnited Airlines
Deal found 8/15$715
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Tue 9/306:50 amPRG - ONT
2 stops24h 40mUnited Airlines
Tue 10/79:36 amONT - PRG
2 stops21h 24mUnited Airlines
Deal found 8/16$721
This United Airlines deal was found by Cheapflights users on 8/15. 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 12/161:45 pmPRG - ONT
2 stops18h 04mUnited Airlines
Fri 1/96:42 pmONT - PRG
2 stops18h 43mUnited Airlines
Deal found 8/15$742
This United Airlines deal was found by Cheapflights users on 8/17. 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 10/2211:40 amPRG - ONT
2 stops18h 44mUnited Airlines
Wed 10/291:33 pmONT - PRG
2 stops16h 32mUnited Airlines
Deal found 8/17$756
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Fri 10/2411:40 amPRG - ONT
2 stops39h 00mUnited Airlines
Fri 10/317:00 amONT - PRG
2 stops31h 25mUnited Airlines
Deal found 8/17$775
This American Airlines deal was found by Cheapflights users on 8/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/231:55 pmPRG - ONT
2 stops19h 02mAmerican Airlines
Sun 12/2111:59 pmONT - PRG
2 stops35h 36mAmerican Airlines
Deal found 8/16$786

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 August 18, 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 11/28

11:00 am-11:45 pm

2 stops21h 45m

Ontario

Sat 12/27

3:06 pm-7:50 pm

2 stops19h 44m

$703

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Thu 11/27

10:30 am-8:44 am

2 stops31h 14m

Ontario

Wed 12/24

11:59 pm-10:50 pm

2 stops37h 51m

$703

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Sun 11/23

1:55 pm-11:57 pm

2 stops19h 02m

Ontario

Thu 12/25

12:56 pm-10:50 pm

2 stops24h 54m

$703

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Wed 11/26

1:45 pm-11:57 pm

2 stops19h 12m

Ontario

Mon 12/22

8:06 pm-10:50 pm

2 stops41h 44m

$703

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Sat 11/29

7:40 am-8:55 am

2 stops34h 15m

Ontario

Thu 12/25

5:03 pm-10:50 pm

2 stops20h 47m

$703

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Fri 11/28

11:00 am-10:00 pm

2 stops20h 00m

Ontario

Thu 12/25

6:41 am-10:50 pm

2 stops31h 09m

$703

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Mon 11/24

11:00 am-9:59 pm

2 stops19h 59m

Ontario

Wed 12/24

11:59 pm-10:50 pm

2 stops37h 51m

$703

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Thu 11/27

10:30 am-8:44 am

2 stops31h 14m

Ontario

Thu 12/25

5:03 pm-10:50 pm

2 stops20h 47m

$703

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Wed 11/26

11:00 am-9:59 pm

2 stops19h 59m

Ontario

Tue 12/23

8:47 am-10:50 pm

2 stops29h 03m

$703

PragueOntario

PRG - ONT

PRGONT

Václav Havel Prague

Thu 11/27

10:30 am-8:44 am

2 stops31h 14m

Ontario

Mon 12/22

8:06 pm-10:50 pm

2 stops41h 44m

$703

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 22 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, August is the cheapest month in which you can book a flight from Prague to Ontario (average of $246). Flying from Prague to Ontario in March is currently the most expensive (average of $328). 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 $703, American Airlines can have you in Ontario from Prague in 21h 45m. 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, August is the cheapest month in which you can book a flight from Prague to Ontario (average of $246). Flying from Prague to Ontario in March is currently the most expensive (average of $328). 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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