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Ontario

$487+ Cheap flights from Paris (PAR) 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
PAR — ONT
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Paris to Ontario

Cheapest flights from Paris to Ontario
Explore the most affordable flight options available from Paris to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

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.
Fri 2/276:15 am
CDG
-
ONT
2 stops20h 26m
United Airlines
Tue 3/36:10 am
ONT
-
CDG
1 stop18h 30m
United Airlines
Deal found 2/3$701
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 2/176:30 am
CDG
-
ONT
2 stops20h 11m
United Airlines
Sun 3/16:09 am
ONT
-
CDG
1 stop18h 31m
United Airlines
Deal found 2/3$702
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:50 am
CDG
-
ONT
2 stops24h 17m
American Airlines
Tue 5/57:30 am
ONT
-
CDG
2 stops27h 45m
American Airlines
Deal found 2/2$703
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:30 pm
CDG
-
ONT
2 stops18h 16m
American Airlines
Sat 5/92:08 pm
ONT
-
CDG
2 stops21h 37m
American Airlines
Deal found 2/2$704
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.
Mon 4/207:45 am
CDG
-
ONT
2 stops19h 02m
United Airlines
Sun 6/76:30 pm
ONT
-
CDG
2 stops27h 35m
United Airlines
Deal found 2/3$705
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.
Sun 4/2610:35 am
CDG
-
ONT
2 stops21h 10m
United Airlines
Fri 5/810:37 am
ONT
-
CDG
2 stops18h 18m
United Airlines
Deal found 2/2$707
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:45 pm
CDG
-
ONT
2 stops20h 01m
American Airlines
Fri 5/87:35 pm
ONT
-
CDG
2 stops26h 45m
American Airlines
Deal found 2/2$708
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:30 pm
CDG
-
ONT
2 stops18h 16m
American Airlines
Fri 5/87:35 pm
ONT
-
CDG
2 stops26h 45m
American Airlines
Deal found 2/2$709
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 2/189:55 am
CDG
-
ONT
2 stops22h 02m
United Airlines
Fri 2/276:10 am
ONT
-
CDG
1 stop18h 30m
United Airlines
Deal found 2/3$710
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 2/189:55 am
CDG
-
ONT
2 stops22h 02m
United Airlines
Sun 2/226:09 am
ONT
-
CDG
1 stop18h 31m
United Airlines
Deal found 2/2$711
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1911:05 am
CDG
-
ONT
1 stop16h 37m
American Airlines
Thu 2/2610:56 am
ONT
-
CDG
1 stop13h 09m
American Airlines
Deal found 2/3$712
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2210:20 am
CDG
-
ONT
1 stop14h 42m
Delta
Sun 3/86:00 am
ONT
-
CDG
1 stop18h 15m
Delta
Deal found 2/2$713

Find flight deals from Paris to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Paris (PAR) 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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$701
(Delta)

One-way from

$487
(JetBlue)

Popular in

July

Cheapest in

September

Average price

$630
Provider with most accurate pricing for Paris (PAR)-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Paris (PAR)-Ontario flights.
Search Deals
From Paris (PAR) to Ontario
Search Deals
One-way flight from Paris (PAR) to Ontario
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($247 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($50 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 Paris 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 February 4, 2026.
Use the filters below to find and compare flights from Paris to Ontario that are best for you.

Fly from

Paris

Fly to

Ontario

Route

Depart

Return

Price

ParisOntario

CDG - ONT

CDGONT

Paris Charles de Gaulle

Thu 2/19

6:25 am-10:57 pm

2 stops25h 32m

Ontario

Mon 2/23

5:00 am-9:55 am

2 stops19h 55m

$702

ParisOntario

CDG - ONT

CDGONT

Paris Charles de Gaulle

Fri 2/27

10:20 am-8:07 pm

2 stops18h 47m

Ontario

Tue 3/3

5:00 am-6:55 am

2 stops16h 55m

$702

ParisOntario

CDG - ONT

CDGONT

Paris Charles de Gaulle

Tue 2/24

10:20 am-8:50 pm

2 stops19h 30m

Ontario

Thu 3/5

6:15 am-9:40 am

1 stop18h 25m

$702

ParisOntario

CDG - ONT

CDGONT

Paris Charles de Gaulle

Tue 2/24

10:20 am-8:50 pm

2 stops19h 30m

Ontario

Sat 3/7

11:59 pm-9:55 am

1 stop24h 56m

$702

ParisOntario

CDG - ONT

CDGONT

Paris Charles de Gaulle

Wed 2/25

2:25 pm-10:57 pm

2 stops17h 32m

Ontario

Mon 3/2

6:10 am-9:40 am

1 stop18h 30m

$702

ParisOntario

CDG - ONT

CDGONT

Paris Charles de Gaulle

Tue 2/24

10:20 am-8:50 pm

2 stops19h 30m

Ontario

Fri 3/6

6:15 am-9:40 am

1 stop18h 25m

$702

ParisOntario

CDG - ONT

CDGONT

Paris Charles de Gaulle

Tue 2/24

10:20 am-8:50 pm

2 stops19h 30m

Ontario

Wed 3/4

6:09 am-9:40 am

1 stop18h 31m

$702

ParisOntario

CDG - ONT

CDGONT

Paris Charles de Gaulle

Tue 2/24

10:20 am-8:50 pm

2 stops19h 30m

Ontario

Mon 3/9

6:15 am-9:40 am

1 stop19h 25m

$702

ParisOntario

CDG - ONT

CDGONT

Paris Charles de Gaulle

Wed 2/25

2:25 pm-10:57 pm

2 stops17h 32m

Ontario

Wed 3/4

6:09 am-9:40 am

1 stop18h 31m

$702

ParisOntario

CDG - ONT

CDGONT

Paris Charles de Gaulle

Tue 2/17

6:30 am-5:41 pm

2 stops20h 11m

Ontario

Fri 2/27

6:10 am-9:40 am

1 stop18h 30m

$702

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 39 results
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  • Most accurate provider: When it comes to deals on Paris-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Paris-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Paris-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Paris-Ontario 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 Paris-Ontario 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 Paris to Ontario

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

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

Currently, May is the cheapest month in which you can book a flight from Paris to Ontario (average of $347). Flying from Paris to Ontario in July is currently the most expensive (average of $561). 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 Paris to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Paris?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Paris. On average, Ontario has 0 inbound flights from Paris per day from 0 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Paris to Ontario?

    Departing from Paris to Ontario will take you 25h 21m. Paris and Ontario are separated by a distance of 5627 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Paris to Ontario (average of $347). Flying from Paris to Ontario in July is currently the most expensive (average of $561). 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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